Radiographs Predict Pneumonia Severity

Article Type
Changed
Sun, 05/21/2017 - 14:01
Display Headline
Admission chest radiographs predict illness severity for children hospitalized with pneumonia

The 2011 Pediatric Infectious Diseases Society and Infectious Diseases Society of America (PIDS/IDSA) guidelines for management of pediatric community‐acquired pneumonia (CAP) recommend that admission chest radiographs be obtained in all children hospitalized with CAP to document the presence and extent of infiltrates and to identify complications.[1] Findings from chest radiographs may also provide clues to etiology and assist with predicting disease outcomes. In adults with CAP, clinical prediction tools use radiographic findings to inform triage decisions, guide management strategies, and predict outcomes.[2, 3, 4, 5, 6, 7] Whether or not radiographic findings could have similar utility among children with CAP is unknown.

Several retrospective studies have examined the ability of chest radiographs to predict pediatric pneumonia disease severity.[8, 9, 10, 11, 12] However, these studies used several different measures of severe pneumonia and/or were limited to young children <5 years of age, leading to inconsistent findings. These studies also rarely considered very severe disease (eg, need for invasive mechanical ventilation) or longitudinal outcome measures such as hospital length of stay. Finally, all of these prior studies were conducted outside of the United States, and most were single‐center investigations, potentially limiting generalizability. We sought to examine associations between admission chest radiographic findings and subsequent hospital care processes and clinical outcomes, including length of stay and resource utilization measures, among children hospitalized with CAP at 4 children's hospitals in the United States.

METHODS

Design and Setting

This study was nested within a multicenter retrospective cohort designed to validate International Classification of Diseases, 9th Revision, Clinical Modification (ICD9‐CM) diagnostic codes for pediatric CAP hospitalizations.[13] The Pediatric Health Information System database (Children's Hospital Association, Overland Park, KS) was used to identify children from 4 freestanding pediatric hospitals (Monroe Carell, Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee; Children's Mercy Hospitals & Clinics, Kansas City, Missouri; Seattle Children's Hospital, Seattle, Washington; and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio). The institutional review boards at each participating institution approved the study. The validation study included a 25% random sampling of children 60 days to 18 years of age (n=998) who were hospitalized between January 1, 2010 and December 31, 2010 with at least 1 ICD9‐CM discharge code indicating pneumonia. The diagnosis of CAP was confirmed by medical record review.

Study Population

This study was limited to children from the validation study who met criteria for clinical and radiographic CAP, defined as: (1) abnormal temperature or white blood cell count, (2) signs and symptoms of acute respiratory illness (eg, cough, tachypnea), and (3) chest radiograph indicating pneumonia within 48 hours of admission. Children with atelectasis as the only abnormal radiographic finding and those with complex chronic conditions (eg, cystic fibrosis, malignancy) were excluded using a previously described algorithm.[14]

Outcomes

Several measures of disease severity were assessed. Dichotomous outcomes included supplemental oxygen use, need for intensive care unit (ICU) admission, and need for invasive mechanical ventilation. Continuous outcomes included hospital length of stay, and for those requiring supplemental oxygen, duration of oxygen supplementation, measured in hours.

Exposure

To categorize infiltrate patterns and the presence and size of pleural effusions, we reviewed the final report from admission chest radiographs to obtain the final clinical interpretation performed by the attending pediatric radiologist. Infiltrate patterns were classified as single lobar (reference), unilateral multilobar, bilateral multilobar, or interstitial. Children with both lobar and interstitial infiltrates, and those with mention of atelectasis, were classified according to the type of lobar infiltrate. Those with atelectasis only were excluded. Pleural effusions were classified as absent, small, or moderate/large.

Analysis

Descriptive statistics were summarized using frequencies and percentages for categorical variables and median and interquartile range (IQR) values for continuous variables. Our primary exposures were infiltrate pattern and presence and size of pleural effusion on admission chest radiograph. Associations between radiographic findings and disease outcomes were analyzed using logistic and linear regression for dichotomous and continuous variables, respectively. Continuous outcomes were log‐transformed and normality assumptions verified prior to model development.

Due to the large number of covariates relative to outcome events, we used propensity score methods to adjust for potential confounding. The propensity score estimates the likelihood of a given exposure (ie, infiltrate pattern) conditional on a set of covariates. In this way, the propensity score summarizes potential confounding effects from a large number of covariates into a single variable. Including the propensity score as a covariate in multivariable regression improves model efficiency and helps protect against overfitting.[15] Covariates included in the estimation of the propensity score included age, sex, race/ethnicity, payer, hospital, asthma history, hospital transfer, recent hospitalization (within 30 days), recent emergency department or clinic visit (within 2 weeks), recent antibiotics for acute illness (within 5 days), illness duration prior to admission, tachypnea and/or increased work of breathing (retractions, nasal flaring, or grunting) at presentation, receipt of albuterol and/or corticosteroids during the first 2 calendar days of hospitalization, and concurrent diagnosis of bronchiolitis. All analyses included the estimated propensity score, infiltrate pattern, and pleural effusion (absent, small, or moderate/large).

RESULTS

Study Population

The median age of the 406 children with clinical and radiographic CAP was 3 years (IQR, 16 years) (Table 1). Single lobar infiltrate was the most common radiographic pattern (61%). Children with interstitial infiltrates (10%) were younger than those with lobar infiltrates of any type (median age 1 vs 3 years, P=0.02). A concomitant diagnosis of bronchiolitis was assigned to 34% of children with interstitial infiltrates but only 17% of those with lobar infiltrate patterns (range, 11%20%, P=0.03). Pleural effusion was present in 21% of children and was more common among those with lobar infiltrates, particularly multilobar disease. Only 1 child with interstitial infiltrate had a pleural effusion. Overall, 63% of children required supplemental oxygen, 8% required ICU admission, and 3% required invasive mechanical ventilation. Median length of stay was 51.5 hours (IQR, 3991) and median oxygen duration was 31.5 hours [IQR, 1365]. There were no deaths.

Characteristics of Children Hospitalized With Community‐Acquired Pneumonia According to Admission Radiographic Findings
CharacteristicInfiltrate PatternaP Valueb
Single LobarMultilobar, UnilateralMultilobar, BilateralInterstitial
  • NOTE: Data are presented as number (%) or median [IQR]. Abbreviations: ICU, intensive care unit; IQR, interquartile range; O2, oxygen.

  • Children with both lobar and interstitial infiltrates were classified according to the type of lobar infiltrate

  • P values are from 2 statistics for categorical variables and Kruskal‐Wallis tests for continuous variables.

No.247 (60.8)54 (13.3)64 (15.8)41 (10.1) 
Median age, y3 [16]3 [17]3 [15]1 [03]0.02
Male sex124 (50.2)32 (59.3)41 (64.1)30 (73.2)0.02
Race     
Non‐Hispanic white133 (53.8)36 (66.7)37 (57.8)17 (41.5)0.69
Non‐Hispanic black40 (16.2)6 (11.1)9 (14.1)8 (19.5) 
Hispanic25 (10.1)4 (7.4)5 (7.8)7 (17.1) 
Other49 (19.9)8 (14.8)13 (20.4)9 (22) 
Insurance     
Public130 (52.6)26 (48.1)33 (51.6)25 (61)0.90
Private116 (47)28 (51.9)31 (48.4)16 (39) 
Concurrent diagnosis     
Asthma80 (32.4)16 (29.6)17 (26.6)12 (29.3)0.82
Bronchiolitis43 (17.4)6 (11.1)13 (20.3)14 (34.1)0.03
Effusion     
None201 (81.4)31 (57.4)48 (75)40 (97.6)<.01
Small34 (13.8)20 (37)11 (17.2)0 
Moderate/large12 (4.9)3 (5.6)5 (7.8)1 (2.4) 

Outcomes According to Radiographic Infiltrate Pattern

Compared to children with single lobar infiltrates, the odds of ICU admission was significantly increased for those with either unilateral or bilateral multilobar infiltrates (unilateral, adjusted odds ratio [aOR]: 8.0, 95% confidence interval [CI]: 2.922.2; bilateral, aOR: 6.6, 95% CI: 2.14.5) (Figure 1, Table 2). Patients with bilateral multilobar infiltrates also had higher odds for supplemental oxygen use (aOR: 2.7, 95% CI: 1.25.8) and need for invasive mechanical ventilation (aOR: 3.0, 95% CI: 1.27.9). There were no differences in duration of oxygen supplementation or hospital length of stay for children with single versus multilobar infiltrates.

Figure 1
Propensity‐adjusted odds ratios for severe outcomes for children hospitalized with community‐acquired pneumonia according to admission radiographic findings. Single lobar infiltrate is the reference. Children with both lobar and interstitial infiltrates were classified according to the type of lobar infiltrate. Covariates included in the propensity score included: age, sex, race/ethnicity, payer, hospital, asthma history, hospital transfer, recent hospitalization (within 30 days), recent emergency department or clinic visit (within 2 weeks), recent antibiotics for acute illness (within 5 days), illness duration prior to admission, tachypnea and/or increased work of breathing (retractions, nasal flaring, or grunting) at presentation, receipt of albuterol and/or corticosteroids during the first 2 calendar days, and concurrent diagnosis of bronchiolitis. Pleural effusion (absent, small, or moderate/large) was included as a separate covariate. **Indicates that confidence interval (CIs) extends beyond the graph. The upper 95% CI for the odds ratio (OR) for infiltrates that were multilobar and unilateral was 22.2 for intensive care unit (ICU) admission and 37.8 for mechanical ventilation. Abbreviations: O2, oxygen.
Severe Outcomes for Children Hospitalized With Community‐Acquired Pneumonia According to Admission Radiographic Findings
OutcomeInfiltrate PatternaP Valueb
Single Lobar, n=247Multilobar, Unilateral, n=54Multilobar, Bilateral, n=64Interstitial, n=41
  • NOTE: Data are presented as number (%) or median [IQR]. Abbreviations: ICU, intensive care unit; IQR, interquartile range, O2, oxygen.

  • Children with both lobar and interstitial infiltrates were classified according to the type of lobar infiltrate.

  • P values are from 2 statistics for categorical variables and Kruskal‐Wallis tests for continuous variables.

Supplemental O2 requirement143 (57.9)34 (63)46 (71.9)31 (75.6)0.05
ICU admission10 (4)9 (16.7)9 (14.1)4 (9.8)<0.01
Mechanical ventilation5 (2)4 (7.4)4 (6.3)1 (2.4)0.13
Hospital length of stay, h47 [3779]63 [45114]56.5 [39.5101]62 [3993]<0.01
O2 duration, h27 [1059]38 [1777]38 [2381]34.5 [1765]0.18

Compared to those with single lobar infiltrates, children with interstitial infiltrates had higher odds of need for supplemental oxygen (aOR: 3.1, 95% CI: 1.37.6) and ICU admission (aOR: 4.4, 95% CI: 1.314.3) but not invasive mechanical ventilation. There were also no differences in duration of oxygen supplementation or hospital length of stay.

Outcomes According to Presence and Size of Pleural Effusion

Compared to those without pleural effusion, children with moderate to large effusion had a higher odds of ICU admission (aOR: 3.2, 95% CI: 1.18.9) and invasive mechanical ventilation (aOR: 14.8, 95% CI: 9.822.4), and also had a longer duration of oxygen supplementation (aOR: 3.0, 95% CI: 1.46.5) and hospital length of stay (aOR: 2.6, 95% CI: 1.9‐3.6) (Table 3, Figure 2). The presence of a small pleural effusion was not associated with increased need for supplemental oxygen, ICU admission, or mechanical ventilation compared to those without effusion. However, small effusion was associated with a longer duration of oxygen supplementation (aOR: 1.7, 95% CI: 12.7) and hospital length of stay (aOR: 1.6, 95% CI: 1.3‐1.9).

Severe Outcomes for Children Hospitalized With Community‐Acquired Pneumonia According to Presence and Size of Pleural Effusion
OutcomePleural EffusionP Valuea
None, n=320Small, n=65Moderate/Large, n=21
  • NOTE: Data are presented as number (%) or median [IQR]. Abbreviations: ICU, intensive care unit; IQR, interquartile range; O2, oxygen.

  • P values are from 2 statistics for categorical variables and Kruskal‐Wallis tests for continuous variables.

Supplemental O2 requirement200 (62.5)40 (61.5)14 (66.7)0.91
ICU admission22 (6.9)6 (9.2)4 (19)0.12
Mechanical ventilation5 (1.6)5 (7.7)4 (19)<0.01
Hospital length of stay, h48 [37.576]72 [45142]160 [82191]<0.01
Oxygen duration, h31 [1157]38.5 [1887]111 [27154]<0.01
Figure 2
Propensity‐adjusted odds ratios for severe outcomes for children hospitalized with community‐acquired pneumonia according to presence and size of effusion. No effusion is the reference. Covariates included in the propensity score included: age, sex, race/ethnicity, payer, hospital, asthma history, hospital transfer, recent hospitalization (within 30 days), recent emergency department or clinic visit (within 2 weeks), recent antibiotics for acute illness (within 5 days), illness duration prior to admission, tachypnea and/or increased work of breathing (retractions, nasal flaring, or grunting) at presentation, receipt of albuterol and/or corticosteroids during the first 2 calendar days, and concurrent diagnosis of bronchiolitis. Infiltrate pattern was included as a separate covariate. **Indicates confidence interval (CI) extends beyond the graph. The upper 95% CI for the odds ratio (OR) for mechanical ventilation was 34.2 for small effusion and 22.4 for moderate/large effusion. Abbreviations: ICU, intensive care unit; O2, oxygen.

DISCUSSION

We evaluated the association between admission chest radiographic findings and subsequent clinical outcomes and hospital care processes for children hospitalized with CAP at 4 children's hospitals in the United States. We conclude that radiographic findings are associated with important inpatient outcomes. Similar to data from adults, findings of moderate to large pleural effusions and bilateral multilobar infiltrates had the strongest associations with severe disease. Such information, in combination with other prognostic factors, may help clinicians identify high‐risk patients and support management decisions, while also helping to inform families about the expected hospital course.

Previous pediatric studies examining the association between radiographic findings and outcomes have produced inconsistent results.[8, 9, 10, 11, 12] All but 1 of these studies documented 1 radiographic characteristics associated with pneumonia disease severity.[11] Further, although most contrasted lobar/alveolar and interstitial infiltrates, only Patria et al. distinguished among lobar infiltrate patterns (eg, single lobar vs multilobar).[12] Similar to our findings, that study demonstrated increased disease severity among children with bilateral multifocal lobar infiltrates. Of the studies that considered the presence of pleural effusion, only 1 demonstrated this finding to be associated with more severe disease.[9] However, none of these prior studies examined size of the pleural effusion.

In our study, the strongest association with severe pneumonia outcomes was among children with moderate to large pleural effusion. Significant pleural effusions are much more commonly due to infection with bacterial pathogens, particularly Streptococcus pneumoniae, Staphylococcus aureus, and Streptococcus pyogenes, and may also indicate infection with more virulent and/or difficult to treat strains.[16, 17, 18, 19] Surgical intervention is also often required. As such, children with significant pleural effusions are often more ill on presentation and may have a prolonged period of recovery.[20, 21, 22]

Similarly, multilobar infiltrates, particularly bilateral, were associated with increased disease severity in terms of need for supplemental oxygen, ICU admission, and need for invasive mechanical ventilation. Although this finding may be expected, it is interesting to note that the duration of supplemental oxygen and hospital length of stay were similar to those with single lobar disease. One potential explanation is that, although children with multilobar disease are more severe at presentation, rates of recovery are similar to those with less extensive radiographic findings, owing to rapidly effective antimicrobials for uncomplicated bacterial pneumonia. This hypothesis also agrees with the 2011 PIDS/IDSA guidelines, which state that children receiving adequate therapy typically show signs of improvement within 48 to 72 hours regardless of initial severity.[1]

Interstitial infiltrate was also associated with increased severity at presentation but similar length of stay and duration of oxygen requirement compared with single lobar disease. We note that these children were substantially younger than those presenting with any pattern of lobar disease (median age, 1 vs 3 years), were more likely to have a concurrent diagnosis of bronchiolitis (34% vs 17%), and only 1 child with interstitial infiltrates had a documented pleural effusion (vs 23% of children with lobar infiltrates). Primary viral pneumonia is considered more likely to produce interstitial infiltrates on chest radiograph compared to bacterial disease, and although detailed etiologic data are unavailable for this study, our findings above strongly support this assertion.[23, 24]

The 2011 PIDS/IDSA guidelines recommend admission chest radiographs for all children hospitalized with pneumonia to assess extent of disease and identify complications that may requiring additional evaluation or surgical intervention.[1] Our findings highlight additional potential benefits of admission radiographs in terms of disease prognosis and management decisions. In the initial evaluation of a sick child with pneumonia, clinicians are often presented with a number of potential prognostic factors that may influence disease outcomes. However, it is sometimes difficult for providers to consider all available information and/or the relative importance of a single factor, resulting in inaccurate risk perceptions and management decisions that may contribute to poor outcomes.[25] Similar to adults, the development of clinical prediction rules, which incorporate a variety of important predictors including admission radiographic findings, likely would improve risk assessments and potentially outcomes for children with pneumonia. Such prognostic information is also helpful for clinicians who may use these data to inform and prepare families regarding the expected course of hospitalization.

Our study has several limitations. This study was retrospective and only included a sample of pneumonia hospitalizations during the study period, which may raise confounding concerns and potential for selection bias. However, detailed medical record reviews using standardized case definitions for radiographic CAP were used, and a large sample of children was randomly selected from each institution. In addition, a large number of potential confounders were selected a priori and included in multivariable analyses; propensity score adjustment was used to reduce model complexity and avoid overfitting. Radiographic findings were based on clinical interpretation by pediatric radiologists independent of a study protocol. Prior studies have demonstrated good agreement for identification of alveolar/lobar infiltrates and pleural effusion by trained radiologists, although agreement for interstitial infiltrate is poor.[26, 27] This limitation could result in either over‐ or underestimation of the prevalence of interstitial infiltrates likely resulting in a nondifferential bias toward the null. Microbiologic information, which may inform radiographic findings and disease severity, was also not available. However, because pneumonia etiology is frequently unknown in the clinical setting, our study reflects typical practice. We also did not include children from community or nonteaching hospitals. Thus, although findings may have relevance to community or nonteaching hospitals, our results cannot be generalized.

CONCLUSION

Our study demonstrates that among children hospitalized with CAP, admission chest radiographic findings are associated with important clinical outcomes and hospital care processes, highlighting additional benefits of the 2011 PIDS/IDSA guidelines' recommendation for admission chest radiographs for all children hospitalized with pneumonia. These data, in conjunction with other important prognostic information, may help clinicians more rapidly identify children at increased risk for severe illness, and could also offer guidance regarding disease management strategies and facilitate shared decision making with families. Thus, routine admission chest radiography in this population represents a valuable tool that contributes to improved quality of care.

Disclosures

Dr. Williams is supported by funds from the National Institutes of HealthNational Institute of Allergy and Infectious Diseases (K23AI104779). The authors report no conflicts of interest.

Files
References
  1. Bradley JS, Byington CL, Shah SS, et al. The management of community‐acquired pneumonia in infants and children older than 3 months of age: clinical practice guidelines by the Pediatric Infectious Diseases Society and the Infectious Diseases Society of America. Clin Infect Dis. 2011;53(7):e25e76.
  2. Fine MJ, Auble TE, Yealy DM, et al. A prediction rule to identify low‐risk patients with community‐acquired pneumonia. N Engl J Med. 1997;336(4):243250.
  3. Charles PG, Wolfe R, Whitby M, et al. SMART‐COP: a tool for predicting the need for intensive respiratory or vasopressor support in community‐acquired pneumonia. Clin Infect Dis. 2008;47(3):375384.
  4. Espana PP, Capelastegui A, Gorordo I, et al. Development and validation of a clinical prediction rule for severe community‐acquired pneumonia. Am J Respir Crit Care Med. 2006;174(11):12491256.
  5. Renaud B, Labarere J, Coma E, et al. Risk stratification of early admission to the intensive care unit of patients with no major criteria of severe community‐acquired pneumonia: development of an international prediction rule. Crit Care. 2009;13(2):R54.
  6. Hasley PB, Albaum MN, Li YH, et al. Do pulmonary radiographic findings at presentation predict mortality in patients with community‐acquired pneumonia? Arch Intern Med. 1996;156(19):22062212.
  7. Chalmers JD, Singanayagam A, Akram AR, Choudhury G, Mandal P, Hill AT. Safety and efficacy of CURB65‐guided antibiotic therapy in community‐acquired pneumonia. J Antimicrob Chemother. 2011;66(2):416423.
  8. Kin Key N, Araujo‐Neto CA, Nascimento‐Carvalho CM. Severity of childhood community‐acquired pneumonia and chest radiographic findings. Pediatr Pulmonol. 2009;44(3):249252.
  9. Grafakou O, Moustaki M, Tsolia M, et al. Can chest x‐ray predict pneumonia severity? Pediatr Pulmonol. 2004;38(6):465469.
  10. Clark JE, Hammal D, Spencer D, Hampton F. Children with pneumonia: how do they present and how are they managed? Arch Dis Child. 2007;92(5):394398.
  11. Bharti B, Kaur L, Bharti S. Role of chest X‐ray in predicting outcome of acute severe pneumonia. Indian Pediatr. 2008;45(11):893898.
  12. Patria MF, Longhi B, Lelii M, Galeone C, Pavesi MA, Esposito S. Association between radiological findings and severity of community‐acquired pneumonia in children. Ital J Pediatr. 2013;39:56.
  13. Williams DJ, Shah SS, Myers AM, et al. Identifying pediatric community‐acquired pneumonia hospitalizations: accuracy of administrative billing codes. JAMA Pediatrics. 2013;167(9):851858.
  14. Feudtner C, Hays RM, Haynes G, Geyer JR, Neff JM, Koepsell TD. Deaths attributed to pediatric complex chronic conditions: national trends and implications for supportive care services. Pediatrics. 2001;107(6):E99.
  15. Joffe MM, Rosenbaum PR. Invited commentary: propensity scores. Am J Epidemiol. 1999;150(4):327333.
  16. Grijalva CG, Nuorti JP, Zhu Y, Griffin MR. Increasing incidence of empyema complicating childhood community‐acquired pneumonia in the United States. Clin Infect Dis. 2010;50(6):805813.
  17. Michelow IC, Olsen K, Lozano J, et al. Epidemiology and clinical characteristics of community‐acquired pneumonia in hospitalized children. Pediatrics. 2004;113(4):701707.
  18. Blaschke AJ, Heyrend C, Byington CL, et al. Molecular analysis improves pathogen identification and epidemiologic study of pediatric parapneumonic empyema. Pediatr Infect Dis J. 2011;30(4):289294.
  19. Chonmaitree T, Powell KR. Parapneumonic pleural effusion and empyema in children. Review of a 19‐year experience, 1962–1980. Clin Pediatr (Phila). 1983;22(6):414419.
  20. Huang CY, Chang L, Liu CC, et al. Risk factors of progressive community‐acquired pneumonia in hospitalized children: a prospective study [published online ahead of print August 28, 2013]. J Microbiol Immunol Infect. doi: 10.1016/j.jmii.2013.06.009.
  21. Rowan‐Legg A, Barrowman N, Shenouda N, Koujok K, Saux N. Community‐acquired lobar pneumonia in children in the era of universal 7‐valent pneumococcal vaccination: a review of clinical presentations and antimicrobial treatment from a Canadian pediatric hospital. BMC Pediatr. 2012;12:133.
  22. Wexler ID, Knoll S, Picard E, et al. Clinical characteristics and outcome of complicated pneumococcal pneumonia in a pediatric population. Pediatr Pulmonol. 2006;41(8):726734.
  23. Virkki R, Juven T, Rikalainen H, Svedstrom E, Mertsola J, Ruuskanen O. Differentiation of bacterial and viral pneumonia in children. Thorax. 2002;57(5):438441.
  24. Harris M, Clark J, Coote N, et al. British Thoracic Society guidelines for the management of community acquired pneumonia in children: update 2011. Thorax. 2011;66(suppl 2):ii1ii23.
  25. Neill AM, Martin IR, Weir R, et al. Community acquired pneumonia: aetiology and usefulness of severity criteria on admission. Thorax. 1996;51(10):10101016.
  26. Neuman MI, Lee EY, Bixby S, et al. Variability in the interpretation of chest radiographs for the diagnosis of pneumonia in children. J Hosp Med. 2012;7(4):294298.
  27. Albaum MN, Hill LC, Murphy M, et al. Interobserver reliability of the chest radiograph in community‐acquired pneumonia. PORT Investigators. Chest. 1996;110(2):343350.
Article PDF
Issue
Journal of Hospital Medicine - 9(9)
Page Number
559-564
Sections
Files
Files
Article PDF
Article PDF

The 2011 Pediatric Infectious Diseases Society and Infectious Diseases Society of America (PIDS/IDSA) guidelines for management of pediatric community‐acquired pneumonia (CAP) recommend that admission chest radiographs be obtained in all children hospitalized with CAP to document the presence and extent of infiltrates and to identify complications.[1] Findings from chest radiographs may also provide clues to etiology and assist with predicting disease outcomes. In adults with CAP, clinical prediction tools use radiographic findings to inform triage decisions, guide management strategies, and predict outcomes.[2, 3, 4, 5, 6, 7] Whether or not radiographic findings could have similar utility among children with CAP is unknown.

Several retrospective studies have examined the ability of chest radiographs to predict pediatric pneumonia disease severity.[8, 9, 10, 11, 12] However, these studies used several different measures of severe pneumonia and/or were limited to young children <5 years of age, leading to inconsistent findings. These studies also rarely considered very severe disease (eg, need for invasive mechanical ventilation) or longitudinal outcome measures such as hospital length of stay. Finally, all of these prior studies were conducted outside of the United States, and most were single‐center investigations, potentially limiting generalizability. We sought to examine associations between admission chest radiographic findings and subsequent hospital care processes and clinical outcomes, including length of stay and resource utilization measures, among children hospitalized with CAP at 4 children's hospitals in the United States.

METHODS

Design and Setting

This study was nested within a multicenter retrospective cohort designed to validate International Classification of Diseases, 9th Revision, Clinical Modification (ICD9‐CM) diagnostic codes for pediatric CAP hospitalizations.[13] The Pediatric Health Information System database (Children's Hospital Association, Overland Park, KS) was used to identify children from 4 freestanding pediatric hospitals (Monroe Carell, Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee; Children's Mercy Hospitals & Clinics, Kansas City, Missouri; Seattle Children's Hospital, Seattle, Washington; and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio). The institutional review boards at each participating institution approved the study. The validation study included a 25% random sampling of children 60 days to 18 years of age (n=998) who were hospitalized between January 1, 2010 and December 31, 2010 with at least 1 ICD9‐CM discharge code indicating pneumonia. The diagnosis of CAP was confirmed by medical record review.

Study Population

This study was limited to children from the validation study who met criteria for clinical and radiographic CAP, defined as: (1) abnormal temperature or white blood cell count, (2) signs and symptoms of acute respiratory illness (eg, cough, tachypnea), and (3) chest radiograph indicating pneumonia within 48 hours of admission. Children with atelectasis as the only abnormal radiographic finding and those with complex chronic conditions (eg, cystic fibrosis, malignancy) were excluded using a previously described algorithm.[14]

Outcomes

Several measures of disease severity were assessed. Dichotomous outcomes included supplemental oxygen use, need for intensive care unit (ICU) admission, and need for invasive mechanical ventilation. Continuous outcomes included hospital length of stay, and for those requiring supplemental oxygen, duration of oxygen supplementation, measured in hours.

Exposure

To categorize infiltrate patterns and the presence and size of pleural effusions, we reviewed the final report from admission chest radiographs to obtain the final clinical interpretation performed by the attending pediatric radiologist. Infiltrate patterns were classified as single lobar (reference), unilateral multilobar, bilateral multilobar, or interstitial. Children with both lobar and interstitial infiltrates, and those with mention of atelectasis, were classified according to the type of lobar infiltrate. Those with atelectasis only were excluded. Pleural effusions were classified as absent, small, or moderate/large.

Analysis

Descriptive statistics were summarized using frequencies and percentages for categorical variables and median and interquartile range (IQR) values for continuous variables. Our primary exposures were infiltrate pattern and presence and size of pleural effusion on admission chest radiograph. Associations between radiographic findings and disease outcomes were analyzed using logistic and linear regression for dichotomous and continuous variables, respectively. Continuous outcomes were log‐transformed and normality assumptions verified prior to model development.

Due to the large number of covariates relative to outcome events, we used propensity score methods to adjust for potential confounding. The propensity score estimates the likelihood of a given exposure (ie, infiltrate pattern) conditional on a set of covariates. In this way, the propensity score summarizes potential confounding effects from a large number of covariates into a single variable. Including the propensity score as a covariate in multivariable regression improves model efficiency and helps protect against overfitting.[15] Covariates included in the estimation of the propensity score included age, sex, race/ethnicity, payer, hospital, asthma history, hospital transfer, recent hospitalization (within 30 days), recent emergency department or clinic visit (within 2 weeks), recent antibiotics for acute illness (within 5 days), illness duration prior to admission, tachypnea and/or increased work of breathing (retractions, nasal flaring, or grunting) at presentation, receipt of albuterol and/or corticosteroids during the first 2 calendar days of hospitalization, and concurrent diagnosis of bronchiolitis. All analyses included the estimated propensity score, infiltrate pattern, and pleural effusion (absent, small, or moderate/large).

RESULTS

Study Population

The median age of the 406 children with clinical and radiographic CAP was 3 years (IQR, 16 years) (Table 1). Single lobar infiltrate was the most common radiographic pattern (61%). Children with interstitial infiltrates (10%) were younger than those with lobar infiltrates of any type (median age 1 vs 3 years, P=0.02). A concomitant diagnosis of bronchiolitis was assigned to 34% of children with interstitial infiltrates but only 17% of those with lobar infiltrate patterns (range, 11%20%, P=0.03). Pleural effusion was present in 21% of children and was more common among those with lobar infiltrates, particularly multilobar disease. Only 1 child with interstitial infiltrate had a pleural effusion. Overall, 63% of children required supplemental oxygen, 8% required ICU admission, and 3% required invasive mechanical ventilation. Median length of stay was 51.5 hours (IQR, 3991) and median oxygen duration was 31.5 hours [IQR, 1365]. There were no deaths.

Characteristics of Children Hospitalized With Community‐Acquired Pneumonia According to Admission Radiographic Findings
CharacteristicInfiltrate PatternaP Valueb
Single LobarMultilobar, UnilateralMultilobar, BilateralInterstitial
  • NOTE: Data are presented as number (%) or median [IQR]. Abbreviations: ICU, intensive care unit; IQR, interquartile range; O2, oxygen.

  • Children with both lobar and interstitial infiltrates were classified according to the type of lobar infiltrate

  • P values are from 2 statistics for categorical variables and Kruskal‐Wallis tests for continuous variables.

No.247 (60.8)54 (13.3)64 (15.8)41 (10.1) 
Median age, y3 [16]3 [17]3 [15]1 [03]0.02
Male sex124 (50.2)32 (59.3)41 (64.1)30 (73.2)0.02
Race     
Non‐Hispanic white133 (53.8)36 (66.7)37 (57.8)17 (41.5)0.69
Non‐Hispanic black40 (16.2)6 (11.1)9 (14.1)8 (19.5) 
Hispanic25 (10.1)4 (7.4)5 (7.8)7 (17.1) 
Other49 (19.9)8 (14.8)13 (20.4)9 (22) 
Insurance     
Public130 (52.6)26 (48.1)33 (51.6)25 (61)0.90
Private116 (47)28 (51.9)31 (48.4)16 (39) 
Concurrent diagnosis     
Asthma80 (32.4)16 (29.6)17 (26.6)12 (29.3)0.82
Bronchiolitis43 (17.4)6 (11.1)13 (20.3)14 (34.1)0.03
Effusion     
None201 (81.4)31 (57.4)48 (75)40 (97.6)<.01
Small34 (13.8)20 (37)11 (17.2)0 
Moderate/large12 (4.9)3 (5.6)5 (7.8)1 (2.4) 

Outcomes According to Radiographic Infiltrate Pattern

Compared to children with single lobar infiltrates, the odds of ICU admission was significantly increased for those with either unilateral or bilateral multilobar infiltrates (unilateral, adjusted odds ratio [aOR]: 8.0, 95% confidence interval [CI]: 2.922.2; bilateral, aOR: 6.6, 95% CI: 2.14.5) (Figure 1, Table 2). Patients with bilateral multilobar infiltrates also had higher odds for supplemental oxygen use (aOR: 2.7, 95% CI: 1.25.8) and need for invasive mechanical ventilation (aOR: 3.0, 95% CI: 1.27.9). There were no differences in duration of oxygen supplementation or hospital length of stay for children with single versus multilobar infiltrates.

Figure 1
Propensity‐adjusted odds ratios for severe outcomes for children hospitalized with community‐acquired pneumonia according to admission radiographic findings. Single lobar infiltrate is the reference. Children with both lobar and interstitial infiltrates were classified according to the type of lobar infiltrate. Covariates included in the propensity score included: age, sex, race/ethnicity, payer, hospital, asthma history, hospital transfer, recent hospitalization (within 30 days), recent emergency department or clinic visit (within 2 weeks), recent antibiotics for acute illness (within 5 days), illness duration prior to admission, tachypnea and/or increased work of breathing (retractions, nasal flaring, or grunting) at presentation, receipt of albuterol and/or corticosteroids during the first 2 calendar days, and concurrent diagnosis of bronchiolitis. Pleural effusion (absent, small, or moderate/large) was included as a separate covariate. **Indicates that confidence interval (CIs) extends beyond the graph. The upper 95% CI for the odds ratio (OR) for infiltrates that were multilobar and unilateral was 22.2 for intensive care unit (ICU) admission and 37.8 for mechanical ventilation. Abbreviations: O2, oxygen.
Severe Outcomes for Children Hospitalized With Community‐Acquired Pneumonia According to Admission Radiographic Findings
OutcomeInfiltrate PatternaP Valueb
Single Lobar, n=247Multilobar, Unilateral, n=54Multilobar, Bilateral, n=64Interstitial, n=41
  • NOTE: Data are presented as number (%) or median [IQR]. Abbreviations: ICU, intensive care unit; IQR, interquartile range, O2, oxygen.

  • Children with both lobar and interstitial infiltrates were classified according to the type of lobar infiltrate.

  • P values are from 2 statistics for categorical variables and Kruskal‐Wallis tests for continuous variables.

Supplemental O2 requirement143 (57.9)34 (63)46 (71.9)31 (75.6)0.05
ICU admission10 (4)9 (16.7)9 (14.1)4 (9.8)<0.01
Mechanical ventilation5 (2)4 (7.4)4 (6.3)1 (2.4)0.13
Hospital length of stay, h47 [3779]63 [45114]56.5 [39.5101]62 [3993]<0.01
O2 duration, h27 [1059]38 [1777]38 [2381]34.5 [1765]0.18

Compared to those with single lobar infiltrates, children with interstitial infiltrates had higher odds of need for supplemental oxygen (aOR: 3.1, 95% CI: 1.37.6) and ICU admission (aOR: 4.4, 95% CI: 1.314.3) but not invasive mechanical ventilation. There were also no differences in duration of oxygen supplementation or hospital length of stay.

Outcomes According to Presence and Size of Pleural Effusion

Compared to those without pleural effusion, children with moderate to large effusion had a higher odds of ICU admission (aOR: 3.2, 95% CI: 1.18.9) and invasive mechanical ventilation (aOR: 14.8, 95% CI: 9.822.4), and also had a longer duration of oxygen supplementation (aOR: 3.0, 95% CI: 1.46.5) and hospital length of stay (aOR: 2.6, 95% CI: 1.9‐3.6) (Table 3, Figure 2). The presence of a small pleural effusion was not associated with increased need for supplemental oxygen, ICU admission, or mechanical ventilation compared to those without effusion. However, small effusion was associated with a longer duration of oxygen supplementation (aOR: 1.7, 95% CI: 12.7) and hospital length of stay (aOR: 1.6, 95% CI: 1.3‐1.9).

Severe Outcomes for Children Hospitalized With Community‐Acquired Pneumonia According to Presence and Size of Pleural Effusion
OutcomePleural EffusionP Valuea
None, n=320Small, n=65Moderate/Large, n=21
  • NOTE: Data are presented as number (%) or median [IQR]. Abbreviations: ICU, intensive care unit; IQR, interquartile range; O2, oxygen.

  • P values are from 2 statistics for categorical variables and Kruskal‐Wallis tests for continuous variables.

Supplemental O2 requirement200 (62.5)40 (61.5)14 (66.7)0.91
ICU admission22 (6.9)6 (9.2)4 (19)0.12
Mechanical ventilation5 (1.6)5 (7.7)4 (19)<0.01
Hospital length of stay, h48 [37.576]72 [45142]160 [82191]<0.01
Oxygen duration, h31 [1157]38.5 [1887]111 [27154]<0.01
Figure 2
Propensity‐adjusted odds ratios for severe outcomes for children hospitalized with community‐acquired pneumonia according to presence and size of effusion. No effusion is the reference. Covariates included in the propensity score included: age, sex, race/ethnicity, payer, hospital, asthma history, hospital transfer, recent hospitalization (within 30 days), recent emergency department or clinic visit (within 2 weeks), recent antibiotics for acute illness (within 5 days), illness duration prior to admission, tachypnea and/or increased work of breathing (retractions, nasal flaring, or grunting) at presentation, receipt of albuterol and/or corticosteroids during the first 2 calendar days, and concurrent diagnosis of bronchiolitis. Infiltrate pattern was included as a separate covariate. **Indicates confidence interval (CI) extends beyond the graph. The upper 95% CI for the odds ratio (OR) for mechanical ventilation was 34.2 for small effusion and 22.4 for moderate/large effusion. Abbreviations: ICU, intensive care unit; O2, oxygen.

DISCUSSION

We evaluated the association between admission chest radiographic findings and subsequent clinical outcomes and hospital care processes for children hospitalized with CAP at 4 children's hospitals in the United States. We conclude that radiographic findings are associated with important inpatient outcomes. Similar to data from adults, findings of moderate to large pleural effusions and bilateral multilobar infiltrates had the strongest associations with severe disease. Such information, in combination with other prognostic factors, may help clinicians identify high‐risk patients and support management decisions, while also helping to inform families about the expected hospital course.

Previous pediatric studies examining the association between radiographic findings and outcomes have produced inconsistent results.[8, 9, 10, 11, 12] All but 1 of these studies documented 1 radiographic characteristics associated with pneumonia disease severity.[11] Further, although most contrasted lobar/alveolar and interstitial infiltrates, only Patria et al. distinguished among lobar infiltrate patterns (eg, single lobar vs multilobar).[12] Similar to our findings, that study demonstrated increased disease severity among children with bilateral multifocal lobar infiltrates. Of the studies that considered the presence of pleural effusion, only 1 demonstrated this finding to be associated with more severe disease.[9] However, none of these prior studies examined size of the pleural effusion.

In our study, the strongest association with severe pneumonia outcomes was among children with moderate to large pleural effusion. Significant pleural effusions are much more commonly due to infection with bacterial pathogens, particularly Streptococcus pneumoniae, Staphylococcus aureus, and Streptococcus pyogenes, and may also indicate infection with more virulent and/or difficult to treat strains.[16, 17, 18, 19] Surgical intervention is also often required. As such, children with significant pleural effusions are often more ill on presentation and may have a prolonged period of recovery.[20, 21, 22]

Similarly, multilobar infiltrates, particularly bilateral, were associated with increased disease severity in terms of need for supplemental oxygen, ICU admission, and need for invasive mechanical ventilation. Although this finding may be expected, it is interesting to note that the duration of supplemental oxygen and hospital length of stay were similar to those with single lobar disease. One potential explanation is that, although children with multilobar disease are more severe at presentation, rates of recovery are similar to those with less extensive radiographic findings, owing to rapidly effective antimicrobials for uncomplicated bacterial pneumonia. This hypothesis also agrees with the 2011 PIDS/IDSA guidelines, which state that children receiving adequate therapy typically show signs of improvement within 48 to 72 hours regardless of initial severity.[1]

Interstitial infiltrate was also associated with increased severity at presentation but similar length of stay and duration of oxygen requirement compared with single lobar disease. We note that these children were substantially younger than those presenting with any pattern of lobar disease (median age, 1 vs 3 years), were more likely to have a concurrent diagnosis of bronchiolitis (34% vs 17%), and only 1 child with interstitial infiltrates had a documented pleural effusion (vs 23% of children with lobar infiltrates). Primary viral pneumonia is considered more likely to produce interstitial infiltrates on chest radiograph compared to bacterial disease, and although detailed etiologic data are unavailable for this study, our findings above strongly support this assertion.[23, 24]

The 2011 PIDS/IDSA guidelines recommend admission chest radiographs for all children hospitalized with pneumonia to assess extent of disease and identify complications that may requiring additional evaluation or surgical intervention.[1] Our findings highlight additional potential benefits of admission radiographs in terms of disease prognosis and management decisions. In the initial evaluation of a sick child with pneumonia, clinicians are often presented with a number of potential prognostic factors that may influence disease outcomes. However, it is sometimes difficult for providers to consider all available information and/or the relative importance of a single factor, resulting in inaccurate risk perceptions and management decisions that may contribute to poor outcomes.[25] Similar to adults, the development of clinical prediction rules, which incorporate a variety of important predictors including admission radiographic findings, likely would improve risk assessments and potentially outcomes for children with pneumonia. Such prognostic information is also helpful for clinicians who may use these data to inform and prepare families regarding the expected course of hospitalization.

Our study has several limitations. This study was retrospective and only included a sample of pneumonia hospitalizations during the study period, which may raise confounding concerns and potential for selection bias. However, detailed medical record reviews using standardized case definitions for radiographic CAP were used, and a large sample of children was randomly selected from each institution. In addition, a large number of potential confounders were selected a priori and included in multivariable analyses; propensity score adjustment was used to reduce model complexity and avoid overfitting. Radiographic findings were based on clinical interpretation by pediatric radiologists independent of a study protocol. Prior studies have demonstrated good agreement for identification of alveolar/lobar infiltrates and pleural effusion by trained radiologists, although agreement for interstitial infiltrate is poor.[26, 27] This limitation could result in either over‐ or underestimation of the prevalence of interstitial infiltrates likely resulting in a nondifferential bias toward the null. Microbiologic information, which may inform radiographic findings and disease severity, was also not available. However, because pneumonia etiology is frequently unknown in the clinical setting, our study reflects typical practice. We also did not include children from community or nonteaching hospitals. Thus, although findings may have relevance to community or nonteaching hospitals, our results cannot be generalized.

CONCLUSION

Our study demonstrates that among children hospitalized with CAP, admission chest radiographic findings are associated with important clinical outcomes and hospital care processes, highlighting additional benefits of the 2011 PIDS/IDSA guidelines' recommendation for admission chest radiographs for all children hospitalized with pneumonia. These data, in conjunction with other important prognostic information, may help clinicians more rapidly identify children at increased risk for severe illness, and could also offer guidance regarding disease management strategies and facilitate shared decision making with families. Thus, routine admission chest radiography in this population represents a valuable tool that contributes to improved quality of care.

Disclosures

Dr. Williams is supported by funds from the National Institutes of HealthNational Institute of Allergy and Infectious Diseases (K23AI104779). The authors report no conflicts of interest.

The 2011 Pediatric Infectious Diseases Society and Infectious Diseases Society of America (PIDS/IDSA) guidelines for management of pediatric community‐acquired pneumonia (CAP) recommend that admission chest radiographs be obtained in all children hospitalized with CAP to document the presence and extent of infiltrates and to identify complications.[1] Findings from chest radiographs may also provide clues to etiology and assist with predicting disease outcomes. In adults with CAP, clinical prediction tools use radiographic findings to inform triage decisions, guide management strategies, and predict outcomes.[2, 3, 4, 5, 6, 7] Whether or not radiographic findings could have similar utility among children with CAP is unknown.

Several retrospective studies have examined the ability of chest radiographs to predict pediatric pneumonia disease severity.[8, 9, 10, 11, 12] However, these studies used several different measures of severe pneumonia and/or were limited to young children <5 years of age, leading to inconsistent findings. These studies also rarely considered very severe disease (eg, need for invasive mechanical ventilation) or longitudinal outcome measures such as hospital length of stay. Finally, all of these prior studies were conducted outside of the United States, and most were single‐center investigations, potentially limiting generalizability. We sought to examine associations between admission chest radiographic findings and subsequent hospital care processes and clinical outcomes, including length of stay and resource utilization measures, among children hospitalized with CAP at 4 children's hospitals in the United States.

METHODS

Design and Setting

This study was nested within a multicenter retrospective cohort designed to validate International Classification of Diseases, 9th Revision, Clinical Modification (ICD9‐CM) diagnostic codes for pediatric CAP hospitalizations.[13] The Pediatric Health Information System database (Children's Hospital Association, Overland Park, KS) was used to identify children from 4 freestanding pediatric hospitals (Monroe Carell, Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee; Children's Mercy Hospitals & Clinics, Kansas City, Missouri; Seattle Children's Hospital, Seattle, Washington; and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio). The institutional review boards at each participating institution approved the study. The validation study included a 25% random sampling of children 60 days to 18 years of age (n=998) who were hospitalized between January 1, 2010 and December 31, 2010 with at least 1 ICD9‐CM discharge code indicating pneumonia. The diagnosis of CAP was confirmed by medical record review.

Study Population

This study was limited to children from the validation study who met criteria for clinical and radiographic CAP, defined as: (1) abnormal temperature or white blood cell count, (2) signs and symptoms of acute respiratory illness (eg, cough, tachypnea), and (3) chest radiograph indicating pneumonia within 48 hours of admission. Children with atelectasis as the only abnormal radiographic finding and those with complex chronic conditions (eg, cystic fibrosis, malignancy) were excluded using a previously described algorithm.[14]

Outcomes

Several measures of disease severity were assessed. Dichotomous outcomes included supplemental oxygen use, need for intensive care unit (ICU) admission, and need for invasive mechanical ventilation. Continuous outcomes included hospital length of stay, and for those requiring supplemental oxygen, duration of oxygen supplementation, measured in hours.

Exposure

To categorize infiltrate patterns and the presence and size of pleural effusions, we reviewed the final report from admission chest radiographs to obtain the final clinical interpretation performed by the attending pediatric radiologist. Infiltrate patterns were classified as single lobar (reference), unilateral multilobar, bilateral multilobar, or interstitial. Children with both lobar and interstitial infiltrates, and those with mention of atelectasis, were classified according to the type of lobar infiltrate. Those with atelectasis only were excluded. Pleural effusions were classified as absent, small, or moderate/large.

Analysis

Descriptive statistics were summarized using frequencies and percentages for categorical variables and median and interquartile range (IQR) values for continuous variables. Our primary exposures were infiltrate pattern and presence and size of pleural effusion on admission chest radiograph. Associations between radiographic findings and disease outcomes were analyzed using logistic and linear regression for dichotomous and continuous variables, respectively. Continuous outcomes were log‐transformed and normality assumptions verified prior to model development.

Due to the large number of covariates relative to outcome events, we used propensity score methods to adjust for potential confounding. The propensity score estimates the likelihood of a given exposure (ie, infiltrate pattern) conditional on a set of covariates. In this way, the propensity score summarizes potential confounding effects from a large number of covariates into a single variable. Including the propensity score as a covariate in multivariable regression improves model efficiency and helps protect against overfitting.[15] Covariates included in the estimation of the propensity score included age, sex, race/ethnicity, payer, hospital, asthma history, hospital transfer, recent hospitalization (within 30 days), recent emergency department or clinic visit (within 2 weeks), recent antibiotics for acute illness (within 5 days), illness duration prior to admission, tachypnea and/or increased work of breathing (retractions, nasal flaring, or grunting) at presentation, receipt of albuterol and/or corticosteroids during the first 2 calendar days of hospitalization, and concurrent diagnosis of bronchiolitis. All analyses included the estimated propensity score, infiltrate pattern, and pleural effusion (absent, small, or moderate/large).

RESULTS

Study Population

The median age of the 406 children with clinical and radiographic CAP was 3 years (IQR, 16 years) (Table 1). Single lobar infiltrate was the most common radiographic pattern (61%). Children with interstitial infiltrates (10%) were younger than those with lobar infiltrates of any type (median age 1 vs 3 years, P=0.02). A concomitant diagnosis of bronchiolitis was assigned to 34% of children with interstitial infiltrates but only 17% of those with lobar infiltrate patterns (range, 11%20%, P=0.03). Pleural effusion was present in 21% of children and was more common among those with lobar infiltrates, particularly multilobar disease. Only 1 child with interstitial infiltrate had a pleural effusion. Overall, 63% of children required supplemental oxygen, 8% required ICU admission, and 3% required invasive mechanical ventilation. Median length of stay was 51.5 hours (IQR, 3991) and median oxygen duration was 31.5 hours [IQR, 1365]. There were no deaths.

Characteristics of Children Hospitalized With Community‐Acquired Pneumonia According to Admission Radiographic Findings
CharacteristicInfiltrate PatternaP Valueb
Single LobarMultilobar, UnilateralMultilobar, BilateralInterstitial
  • NOTE: Data are presented as number (%) or median [IQR]. Abbreviations: ICU, intensive care unit; IQR, interquartile range; O2, oxygen.

  • Children with both lobar and interstitial infiltrates were classified according to the type of lobar infiltrate

  • P values are from 2 statistics for categorical variables and Kruskal‐Wallis tests for continuous variables.

No.247 (60.8)54 (13.3)64 (15.8)41 (10.1) 
Median age, y3 [16]3 [17]3 [15]1 [03]0.02
Male sex124 (50.2)32 (59.3)41 (64.1)30 (73.2)0.02
Race     
Non‐Hispanic white133 (53.8)36 (66.7)37 (57.8)17 (41.5)0.69
Non‐Hispanic black40 (16.2)6 (11.1)9 (14.1)8 (19.5) 
Hispanic25 (10.1)4 (7.4)5 (7.8)7 (17.1) 
Other49 (19.9)8 (14.8)13 (20.4)9 (22) 
Insurance     
Public130 (52.6)26 (48.1)33 (51.6)25 (61)0.90
Private116 (47)28 (51.9)31 (48.4)16 (39) 
Concurrent diagnosis     
Asthma80 (32.4)16 (29.6)17 (26.6)12 (29.3)0.82
Bronchiolitis43 (17.4)6 (11.1)13 (20.3)14 (34.1)0.03
Effusion     
None201 (81.4)31 (57.4)48 (75)40 (97.6)<.01
Small34 (13.8)20 (37)11 (17.2)0 
Moderate/large12 (4.9)3 (5.6)5 (7.8)1 (2.4) 

Outcomes According to Radiographic Infiltrate Pattern

Compared to children with single lobar infiltrates, the odds of ICU admission was significantly increased for those with either unilateral or bilateral multilobar infiltrates (unilateral, adjusted odds ratio [aOR]: 8.0, 95% confidence interval [CI]: 2.922.2; bilateral, aOR: 6.6, 95% CI: 2.14.5) (Figure 1, Table 2). Patients with bilateral multilobar infiltrates also had higher odds for supplemental oxygen use (aOR: 2.7, 95% CI: 1.25.8) and need for invasive mechanical ventilation (aOR: 3.0, 95% CI: 1.27.9). There were no differences in duration of oxygen supplementation or hospital length of stay for children with single versus multilobar infiltrates.

Figure 1
Propensity‐adjusted odds ratios for severe outcomes for children hospitalized with community‐acquired pneumonia according to admission radiographic findings. Single lobar infiltrate is the reference. Children with both lobar and interstitial infiltrates were classified according to the type of lobar infiltrate. Covariates included in the propensity score included: age, sex, race/ethnicity, payer, hospital, asthma history, hospital transfer, recent hospitalization (within 30 days), recent emergency department or clinic visit (within 2 weeks), recent antibiotics for acute illness (within 5 days), illness duration prior to admission, tachypnea and/or increased work of breathing (retractions, nasal flaring, or grunting) at presentation, receipt of albuterol and/or corticosteroids during the first 2 calendar days, and concurrent diagnosis of bronchiolitis. Pleural effusion (absent, small, or moderate/large) was included as a separate covariate. **Indicates that confidence interval (CIs) extends beyond the graph. The upper 95% CI for the odds ratio (OR) for infiltrates that were multilobar and unilateral was 22.2 for intensive care unit (ICU) admission and 37.8 for mechanical ventilation. Abbreviations: O2, oxygen.
Severe Outcomes for Children Hospitalized With Community‐Acquired Pneumonia According to Admission Radiographic Findings
OutcomeInfiltrate PatternaP Valueb
Single Lobar, n=247Multilobar, Unilateral, n=54Multilobar, Bilateral, n=64Interstitial, n=41
  • NOTE: Data are presented as number (%) or median [IQR]. Abbreviations: ICU, intensive care unit; IQR, interquartile range, O2, oxygen.

  • Children with both lobar and interstitial infiltrates were classified according to the type of lobar infiltrate.

  • P values are from 2 statistics for categorical variables and Kruskal‐Wallis tests for continuous variables.

Supplemental O2 requirement143 (57.9)34 (63)46 (71.9)31 (75.6)0.05
ICU admission10 (4)9 (16.7)9 (14.1)4 (9.8)<0.01
Mechanical ventilation5 (2)4 (7.4)4 (6.3)1 (2.4)0.13
Hospital length of stay, h47 [3779]63 [45114]56.5 [39.5101]62 [3993]<0.01
O2 duration, h27 [1059]38 [1777]38 [2381]34.5 [1765]0.18

Compared to those with single lobar infiltrates, children with interstitial infiltrates had higher odds of need for supplemental oxygen (aOR: 3.1, 95% CI: 1.37.6) and ICU admission (aOR: 4.4, 95% CI: 1.314.3) but not invasive mechanical ventilation. There were also no differences in duration of oxygen supplementation or hospital length of stay.

Outcomes According to Presence and Size of Pleural Effusion

Compared to those without pleural effusion, children with moderate to large effusion had a higher odds of ICU admission (aOR: 3.2, 95% CI: 1.18.9) and invasive mechanical ventilation (aOR: 14.8, 95% CI: 9.822.4), and also had a longer duration of oxygen supplementation (aOR: 3.0, 95% CI: 1.46.5) and hospital length of stay (aOR: 2.6, 95% CI: 1.9‐3.6) (Table 3, Figure 2). The presence of a small pleural effusion was not associated with increased need for supplemental oxygen, ICU admission, or mechanical ventilation compared to those without effusion. However, small effusion was associated with a longer duration of oxygen supplementation (aOR: 1.7, 95% CI: 12.7) and hospital length of stay (aOR: 1.6, 95% CI: 1.3‐1.9).

Severe Outcomes for Children Hospitalized With Community‐Acquired Pneumonia According to Presence and Size of Pleural Effusion
OutcomePleural EffusionP Valuea
None, n=320Small, n=65Moderate/Large, n=21
  • NOTE: Data are presented as number (%) or median [IQR]. Abbreviations: ICU, intensive care unit; IQR, interquartile range; O2, oxygen.

  • P values are from 2 statistics for categorical variables and Kruskal‐Wallis tests for continuous variables.

Supplemental O2 requirement200 (62.5)40 (61.5)14 (66.7)0.91
ICU admission22 (6.9)6 (9.2)4 (19)0.12
Mechanical ventilation5 (1.6)5 (7.7)4 (19)<0.01
Hospital length of stay, h48 [37.576]72 [45142]160 [82191]<0.01
Oxygen duration, h31 [1157]38.5 [1887]111 [27154]<0.01
Figure 2
Propensity‐adjusted odds ratios for severe outcomes for children hospitalized with community‐acquired pneumonia according to presence and size of effusion. No effusion is the reference. Covariates included in the propensity score included: age, sex, race/ethnicity, payer, hospital, asthma history, hospital transfer, recent hospitalization (within 30 days), recent emergency department or clinic visit (within 2 weeks), recent antibiotics for acute illness (within 5 days), illness duration prior to admission, tachypnea and/or increased work of breathing (retractions, nasal flaring, or grunting) at presentation, receipt of albuterol and/or corticosteroids during the first 2 calendar days, and concurrent diagnosis of bronchiolitis. Infiltrate pattern was included as a separate covariate. **Indicates confidence interval (CI) extends beyond the graph. The upper 95% CI for the odds ratio (OR) for mechanical ventilation was 34.2 for small effusion and 22.4 for moderate/large effusion. Abbreviations: ICU, intensive care unit; O2, oxygen.

DISCUSSION

We evaluated the association between admission chest radiographic findings and subsequent clinical outcomes and hospital care processes for children hospitalized with CAP at 4 children's hospitals in the United States. We conclude that radiographic findings are associated with important inpatient outcomes. Similar to data from adults, findings of moderate to large pleural effusions and bilateral multilobar infiltrates had the strongest associations with severe disease. Such information, in combination with other prognostic factors, may help clinicians identify high‐risk patients and support management decisions, while also helping to inform families about the expected hospital course.

Previous pediatric studies examining the association between radiographic findings and outcomes have produced inconsistent results.[8, 9, 10, 11, 12] All but 1 of these studies documented 1 radiographic characteristics associated with pneumonia disease severity.[11] Further, although most contrasted lobar/alveolar and interstitial infiltrates, only Patria et al. distinguished among lobar infiltrate patterns (eg, single lobar vs multilobar).[12] Similar to our findings, that study demonstrated increased disease severity among children with bilateral multifocal lobar infiltrates. Of the studies that considered the presence of pleural effusion, only 1 demonstrated this finding to be associated with more severe disease.[9] However, none of these prior studies examined size of the pleural effusion.

In our study, the strongest association with severe pneumonia outcomes was among children with moderate to large pleural effusion. Significant pleural effusions are much more commonly due to infection with bacterial pathogens, particularly Streptococcus pneumoniae, Staphylococcus aureus, and Streptococcus pyogenes, and may also indicate infection with more virulent and/or difficult to treat strains.[16, 17, 18, 19] Surgical intervention is also often required. As such, children with significant pleural effusions are often more ill on presentation and may have a prolonged period of recovery.[20, 21, 22]

Similarly, multilobar infiltrates, particularly bilateral, were associated with increased disease severity in terms of need for supplemental oxygen, ICU admission, and need for invasive mechanical ventilation. Although this finding may be expected, it is interesting to note that the duration of supplemental oxygen and hospital length of stay were similar to those with single lobar disease. One potential explanation is that, although children with multilobar disease are more severe at presentation, rates of recovery are similar to those with less extensive radiographic findings, owing to rapidly effective antimicrobials for uncomplicated bacterial pneumonia. This hypothesis also agrees with the 2011 PIDS/IDSA guidelines, which state that children receiving adequate therapy typically show signs of improvement within 48 to 72 hours regardless of initial severity.[1]

Interstitial infiltrate was also associated with increased severity at presentation but similar length of stay and duration of oxygen requirement compared with single lobar disease. We note that these children were substantially younger than those presenting with any pattern of lobar disease (median age, 1 vs 3 years), were more likely to have a concurrent diagnosis of bronchiolitis (34% vs 17%), and only 1 child with interstitial infiltrates had a documented pleural effusion (vs 23% of children with lobar infiltrates). Primary viral pneumonia is considered more likely to produce interstitial infiltrates on chest radiograph compared to bacterial disease, and although detailed etiologic data are unavailable for this study, our findings above strongly support this assertion.[23, 24]

The 2011 PIDS/IDSA guidelines recommend admission chest radiographs for all children hospitalized with pneumonia to assess extent of disease and identify complications that may requiring additional evaluation or surgical intervention.[1] Our findings highlight additional potential benefits of admission radiographs in terms of disease prognosis and management decisions. In the initial evaluation of a sick child with pneumonia, clinicians are often presented with a number of potential prognostic factors that may influence disease outcomes. However, it is sometimes difficult for providers to consider all available information and/or the relative importance of a single factor, resulting in inaccurate risk perceptions and management decisions that may contribute to poor outcomes.[25] Similar to adults, the development of clinical prediction rules, which incorporate a variety of important predictors including admission radiographic findings, likely would improve risk assessments and potentially outcomes for children with pneumonia. Such prognostic information is also helpful for clinicians who may use these data to inform and prepare families regarding the expected course of hospitalization.

Our study has several limitations. This study was retrospective and only included a sample of pneumonia hospitalizations during the study period, which may raise confounding concerns and potential for selection bias. However, detailed medical record reviews using standardized case definitions for radiographic CAP were used, and a large sample of children was randomly selected from each institution. In addition, a large number of potential confounders were selected a priori and included in multivariable analyses; propensity score adjustment was used to reduce model complexity and avoid overfitting. Radiographic findings were based on clinical interpretation by pediatric radiologists independent of a study protocol. Prior studies have demonstrated good agreement for identification of alveolar/lobar infiltrates and pleural effusion by trained radiologists, although agreement for interstitial infiltrate is poor.[26, 27] This limitation could result in either over‐ or underestimation of the prevalence of interstitial infiltrates likely resulting in a nondifferential bias toward the null. Microbiologic information, which may inform radiographic findings and disease severity, was also not available. However, because pneumonia etiology is frequently unknown in the clinical setting, our study reflects typical practice. We also did not include children from community or nonteaching hospitals. Thus, although findings may have relevance to community or nonteaching hospitals, our results cannot be generalized.

CONCLUSION

Our study demonstrates that among children hospitalized with CAP, admission chest radiographic findings are associated with important clinical outcomes and hospital care processes, highlighting additional benefits of the 2011 PIDS/IDSA guidelines' recommendation for admission chest radiographs for all children hospitalized with pneumonia. These data, in conjunction with other important prognostic information, may help clinicians more rapidly identify children at increased risk for severe illness, and could also offer guidance regarding disease management strategies and facilitate shared decision making with families. Thus, routine admission chest radiography in this population represents a valuable tool that contributes to improved quality of care.

Disclosures

Dr. Williams is supported by funds from the National Institutes of HealthNational Institute of Allergy and Infectious Diseases (K23AI104779). The authors report no conflicts of interest.

References
  1. Bradley JS, Byington CL, Shah SS, et al. The management of community‐acquired pneumonia in infants and children older than 3 months of age: clinical practice guidelines by the Pediatric Infectious Diseases Society and the Infectious Diseases Society of America. Clin Infect Dis. 2011;53(7):e25e76.
  2. Fine MJ, Auble TE, Yealy DM, et al. A prediction rule to identify low‐risk patients with community‐acquired pneumonia. N Engl J Med. 1997;336(4):243250.
  3. Charles PG, Wolfe R, Whitby M, et al. SMART‐COP: a tool for predicting the need for intensive respiratory or vasopressor support in community‐acquired pneumonia. Clin Infect Dis. 2008;47(3):375384.
  4. Espana PP, Capelastegui A, Gorordo I, et al. Development and validation of a clinical prediction rule for severe community‐acquired pneumonia. Am J Respir Crit Care Med. 2006;174(11):12491256.
  5. Renaud B, Labarere J, Coma E, et al. Risk stratification of early admission to the intensive care unit of patients with no major criteria of severe community‐acquired pneumonia: development of an international prediction rule. Crit Care. 2009;13(2):R54.
  6. Hasley PB, Albaum MN, Li YH, et al. Do pulmonary radiographic findings at presentation predict mortality in patients with community‐acquired pneumonia? Arch Intern Med. 1996;156(19):22062212.
  7. Chalmers JD, Singanayagam A, Akram AR, Choudhury G, Mandal P, Hill AT. Safety and efficacy of CURB65‐guided antibiotic therapy in community‐acquired pneumonia. J Antimicrob Chemother. 2011;66(2):416423.
  8. Kin Key N, Araujo‐Neto CA, Nascimento‐Carvalho CM. Severity of childhood community‐acquired pneumonia and chest radiographic findings. Pediatr Pulmonol. 2009;44(3):249252.
  9. Grafakou O, Moustaki M, Tsolia M, et al. Can chest x‐ray predict pneumonia severity? Pediatr Pulmonol. 2004;38(6):465469.
  10. Clark JE, Hammal D, Spencer D, Hampton F. Children with pneumonia: how do they present and how are they managed? Arch Dis Child. 2007;92(5):394398.
  11. Bharti B, Kaur L, Bharti S. Role of chest X‐ray in predicting outcome of acute severe pneumonia. Indian Pediatr. 2008;45(11):893898.
  12. Patria MF, Longhi B, Lelii M, Galeone C, Pavesi MA, Esposito S. Association between radiological findings and severity of community‐acquired pneumonia in children. Ital J Pediatr. 2013;39:56.
  13. Williams DJ, Shah SS, Myers AM, et al. Identifying pediatric community‐acquired pneumonia hospitalizations: accuracy of administrative billing codes. JAMA Pediatrics. 2013;167(9):851858.
  14. Feudtner C, Hays RM, Haynes G, Geyer JR, Neff JM, Koepsell TD. Deaths attributed to pediatric complex chronic conditions: national trends and implications for supportive care services. Pediatrics. 2001;107(6):E99.
  15. Joffe MM, Rosenbaum PR. Invited commentary: propensity scores. Am J Epidemiol. 1999;150(4):327333.
  16. Grijalva CG, Nuorti JP, Zhu Y, Griffin MR. Increasing incidence of empyema complicating childhood community‐acquired pneumonia in the United States. Clin Infect Dis. 2010;50(6):805813.
  17. Michelow IC, Olsen K, Lozano J, et al. Epidemiology and clinical characteristics of community‐acquired pneumonia in hospitalized children. Pediatrics. 2004;113(4):701707.
  18. Blaschke AJ, Heyrend C, Byington CL, et al. Molecular analysis improves pathogen identification and epidemiologic study of pediatric parapneumonic empyema. Pediatr Infect Dis J. 2011;30(4):289294.
  19. Chonmaitree T, Powell KR. Parapneumonic pleural effusion and empyema in children. Review of a 19‐year experience, 1962–1980. Clin Pediatr (Phila). 1983;22(6):414419.
  20. Huang CY, Chang L, Liu CC, et al. Risk factors of progressive community‐acquired pneumonia in hospitalized children: a prospective study [published online ahead of print August 28, 2013]. J Microbiol Immunol Infect. doi: 10.1016/j.jmii.2013.06.009.
  21. Rowan‐Legg A, Barrowman N, Shenouda N, Koujok K, Saux N. Community‐acquired lobar pneumonia in children in the era of universal 7‐valent pneumococcal vaccination: a review of clinical presentations and antimicrobial treatment from a Canadian pediatric hospital. BMC Pediatr. 2012;12:133.
  22. Wexler ID, Knoll S, Picard E, et al. Clinical characteristics and outcome of complicated pneumococcal pneumonia in a pediatric population. Pediatr Pulmonol. 2006;41(8):726734.
  23. Virkki R, Juven T, Rikalainen H, Svedstrom E, Mertsola J, Ruuskanen O. Differentiation of bacterial and viral pneumonia in children. Thorax. 2002;57(5):438441.
  24. Harris M, Clark J, Coote N, et al. British Thoracic Society guidelines for the management of community acquired pneumonia in children: update 2011. Thorax. 2011;66(suppl 2):ii1ii23.
  25. Neill AM, Martin IR, Weir R, et al. Community acquired pneumonia: aetiology and usefulness of severity criteria on admission. Thorax. 1996;51(10):10101016.
  26. Neuman MI, Lee EY, Bixby S, et al. Variability in the interpretation of chest radiographs for the diagnosis of pneumonia in children. J Hosp Med. 2012;7(4):294298.
  27. Albaum MN, Hill LC, Murphy M, et al. Interobserver reliability of the chest radiograph in community‐acquired pneumonia. PORT Investigators. Chest. 1996;110(2):343350.
References
  1. Bradley JS, Byington CL, Shah SS, et al. The management of community‐acquired pneumonia in infants and children older than 3 months of age: clinical practice guidelines by the Pediatric Infectious Diseases Society and the Infectious Diseases Society of America. Clin Infect Dis. 2011;53(7):e25e76.
  2. Fine MJ, Auble TE, Yealy DM, et al. A prediction rule to identify low‐risk patients with community‐acquired pneumonia. N Engl J Med. 1997;336(4):243250.
  3. Charles PG, Wolfe R, Whitby M, et al. SMART‐COP: a tool for predicting the need for intensive respiratory or vasopressor support in community‐acquired pneumonia. Clin Infect Dis. 2008;47(3):375384.
  4. Espana PP, Capelastegui A, Gorordo I, et al. Development and validation of a clinical prediction rule for severe community‐acquired pneumonia. Am J Respir Crit Care Med. 2006;174(11):12491256.
  5. Renaud B, Labarere J, Coma E, et al. Risk stratification of early admission to the intensive care unit of patients with no major criteria of severe community‐acquired pneumonia: development of an international prediction rule. Crit Care. 2009;13(2):R54.
  6. Hasley PB, Albaum MN, Li YH, et al. Do pulmonary radiographic findings at presentation predict mortality in patients with community‐acquired pneumonia? Arch Intern Med. 1996;156(19):22062212.
  7. Chalmers JD, Singanayagam A, Akram AR, Choudhury G, Mandal P, Hill AT. Safety and efficacy of CURB65‐guided antibiotic therapy in community‐acquired pneumonia. J Antimicrob Chemother. 2011;66(2):416423.
  8. Kin Key N, Araujo‐Neto CA, Nascimento‐Carvalho CM. Severity of childhood community‐acquired pneumonia and chest radiographic findings. Pediatr Pulmonol. 2009;44(3):249252.
  9. Grafakou O, Moustaki M, Tsolia M, et al. Can chest x‐ray predict pneumonia severity? Pediatr Pulmonol. 2004;38(6):465469.
  10. Clark JE, Hammal D, Spencer D, Hampton F. Children with pneumonia: how do they present and how are they managed? Arch Dis Child. 2007;92(5):394398.
  11. Bharti B, Kaur L, Bharti S. Role of chest X‐ray in predicting outcome of acute severe pneumonia. Indian Pediatr. 2008;45(11):893898.
  12. Patria MF, Longhi B, Lelii M, Galeone C, Pavesi MA, Esposito S. Association between radiological findings and severity of community‐acquired pneumonia in children. Ital J Pediatr. 2013;39:56.
  13. Williams DJ, Shah SS, Myers AM, et al. Identifying pediatric community‐acquired pneumonia hospitalizations: accuracy of administrative billing codes. JAMA Pediatrics. 2013;167(9):851858.
  14. Feudtner C, Hays RM, Haynes G, Geyer JR, Neff JM, Koepsell TD. Deaths attributed to pediatric complex chronic conditions: national trends and implications for supportive care services. Pediatrics. 2001;107(6):E99.
  15. Joffe MM, Rosenbaum PR. Invited commentary: propensity scores. Am J Epidemiol. 1999;150(4):327333.
  16. Grijalva CG, Nuorti JP, Zhu Y, Griffin MR. Increasing incidence of empyema complicating childhood community‐acquired pneumonia in the United States. Clin Infect Dis. 2010;50(6):805813.
  17. Michelow IC, Olsen K, Lozano J, et al. Epidemiology and clinical characteristics of community‐acquired pneumonia in hospitalized children. Pediatrics. 2004;113(4):701707.
  18. Blaschke AJ, Heyrend C, Byington CL, et al. Molecular analysis improves pathogen identification and epidemiologic study of pediatric parapneumonic empyema. Pediatr Infect Dis J. 2011;30(4):289294.
  19. Chonmaitree T, Powell KR. Parapneumonic pleural effusion and empyema in children. Review of a 19‐year experience, 1962–1980. Clin Pediatr (Phila). 1983;22(6):414419.
  20. Huang CY, Chang L, Liu CC, et al. Risk factors of progressive community‐acquired pneumonia in hospitalized children: a prospective study [published online ahead of print August 28, 2013]. J Microbiol Immunol Infect. doi: 10.1016/j.jmii.2013.06.009.
  21. Rowan‐Legg A, Barrowman N, Shenouda N, Koujok K, Saux N. Community‐acquired lobar pneumonia in children in the era of universal 7‐valent pneumococcal vaccination: a review of clinical presentations and antimicrobial treatment from a Canadian pediatric hospital. BMC Pediatr. 2012;12:133.
  22. Wexler ID, Knoll S, Picard E, et al. Clinical characteristics and outcome of complicated pneumococcal pneumonia in a pediatric population. Pediatr Pulmonol. 2006;41(8):726734.
  23. Virkki R, Juven T, Rikalainen H, Svedstrom E, Mertsola J, Ruuskanen O. Differentiation of bacterial and viral pneumonia in children. Thorax. 2002;57(5):438441.
  24. Harris M, Clark J, Coote N, et al. British Thoracic Society guidelines for the management of community acquired pneumonia in children: update 2011. Thorax. 2011;66(suppl 2):ii1ii23.
  25. Neill AM, Martin IR, Weir R, et al. Community acquired pneumonia: aetiology and usefulness of severity criteria on admission. Thorax. 1996;51(10):10101016.
  26. Neuman MI, Lee EY, Bixby S, et al. Variability in the interpretation of chest radiographs for the diagnosis of pneumonia in children. J Hosp Med. 2012;7(4):294298.
  27. Albaum MN, Hill LC, Murphy M, et al. Interobserver reliability of the chest radiograph in community‐acquired pneumonia. PORT Investigators. Chest. 1996;110(2):343350.
Issue
Journal of Hospital Medicine - 9(9)
Issue
Journal of Hospital Medicine - 9(9)
Page Number
559-564
Page Number
559-564
Article Type
Display Headline
Admission chest radiographs predict illness severity for children hospitalized with pneumonia
Display Headline
Admission chest radiographs predict illness severity for children hospitalized with pneumonia
Sections
Article Source

© 2014 Society of Hospital Medicine

Disallow All Ads
Correspondence Location
Address for correspondence and reprint requests: Derek J. Williams, MD, 1161 21st Ave S. S2323 MCN, Nashville, TN 37232; Telephone: 615‐322‐2744; Fax: 615-322-4399; E‐mail: [email protected]
Content Gating
No Gating (article Unlocked/Free)
Alternative CME
Article PDF Media
Media Files

FDA approves vorapaxar, a new oral antiplatelet

Time will tell
Article Type
Changed
Tue, 12/13/2016 - 12:08
Display Headline
FDA approves vorapaxar, a new oral antiplatelet

The novel antiplatelet drug vorapaxar has been approved for reducing the risk of myocardial infarction, stroke, cardiovascular death, and need for coronary revascularization procedures in patients with a previous MI or peripheral arterial disease, the Food and Drug Administration announced on May 8.

Vorapaxar is an antagonist of protease-activated receptor-1 (PAR-1), which inhibits the action of thrombin on the platelet, and is the first drug in this class to be approved. Merck Sharp & Dohme will market the drug as Zontivity.

It comes in a tablet formulation.

At a meeting in January, the FDA’s Cardiovascular and Renal Drugs Advisory Committee voted 10-1 to recommend approval of vorapaxar.

"In patients who have had a heart attack or who have peripheral arterial disease, this drug will lower the risk of heart attack, stroke, and cardiovascular death," Dr. Ellis F. Unger, director of the Office of Drug Evaluation I in the FDA’s Center for Drug Evaluation and Research, reported in the FDA statement.

"In the study that supported the drug’s approval, Zontivity lowered this risk from 9.5% to 7.9% over a 3-year period – about 0.5% per year," he noted.

The FDA’s Cardiovascular and Renal Drugs Advisory Committee recommend approval of the novel antiplatelet drug for reducing atherothrombotic events in patients with a history of MI – the indication proposed by Merck. The recommended dose is one 2.5-mg tablet per day.

Because of the increased risk of bleeding, including life-threatening and fatal bleeding, the drug’s prescribing information includes a boxed warning about this risk and a medication guide informing patients about how to use the drug. A history of stroke, or transient ischemic attack, and a history of intracranial bleeding are contraindications.

The indication also includes the statement that treatment with vorapaxar has been shown to reduce the rate of the combined endpoint of cardiovascular death, MI, stroke, and urgent coronary revascularization.

The company conducted two phase III studies in two different groups of patients. In the TRACER (The Thrombin Receptor Antagonist for Clinical Event Reduction in ACS) study, which compared vorapaxar with placebo, added to standard therapy, as acute therapy (2.5 mg per day after a 40-mg loading dose, or placebo) in almost 13,000 hospitalized patients randomized within 24 hours of presenting with ACS (with non-ST elevation), it reduced the risk of atherothrombotic events (N. Engl. J. Med. 2012;366:20-33).

The study, however, was terminated early after an increased risk of major bleeding, including ICH, was detected and the company stopped the treatment in patients with a history of stroke or new stroke in the other phase III trial, the TRA 2P–TIMI 50 (Thrombin-Receptor Antagonist in Secondary Prevention of Atherothrombotic Events) study. The company dropped plans to pursue the acute ACS indication.

The approved indication is based on the results of the TRA 2P–TIMI 50 study, which randomized 26,449 patients to placebo or 2.5 mg of vorapaxar a day, added to standard therapy (including other antiplatelet agents) in 26,449 outpatients with a previous MI, previous ischemic stroke, or peripheral arterial disease (N. Engl. J. Med. 2012;366:1404-13). (Almost 80% of the patients in the study who met the criteria in the proposed indication were on dual antiplatelet therapy with aspirin and a thienopyridine.)

In the overall cohort, including those who had to stop treatment early, compared with placebo, the risk of the primary composite endpoint of cardiovascular death, MI, stroke, or urgent coronary revascularization was reduced by 12%, and the risk of a secondary efficacy endpoint (CV death, MI, stroke) was reduced by 13% over 3 years among those treated with vorapaxar – effects that were statistically significant, Merck said.

The risk of severe or moderate bleeding was increased by 51% among those on vorapaxar over placebo.

The ICH rate over 3 years was 1% among those on vorapaxar, compared with 0.6% among those on placebo, but the absolute risk was higher in those with a history of stroke, according to Merck.

There is "clearly an unmet need" in this group of patients with a history of MI, "and a lack of therapies that have been shown to really be beneficial long term in this population," said the panel chair, Dr. Philip Sager, chair of the scientific programs committee, Cardiac Safety Research Consortium, San Francisco. "While there certainly is some bleeding risk, the benefits on the primary endpoint and secondary endpoint clearly outweigh those risks, and the benefit-risk relationship is positive," he added.

The panelist who voted against approval, Dr. Mori Krantz, director of the Colorado Prevention Center, Denver Health Medical Center, agreed that the primary efficacy endpoint had been met but was concerned about the size of the benefit and the large number of people needed to treat to benefit one patient.

 

 

"Although the intracranial hemorrhages and the major bleeds were potentially manageable, I worry about the amplification of that signal," because triple antiplatelet therapy is "unprecedented," he added.

Other safety concerns cited by panelists included a lack of an antidote and the lack of an effect in people weighing less than 60 kg (132 lb), an unresolved issue.

[email protected]

Body

This is the first antiplatelet agent with a specific PAD indication. We now have multiple such agents to consider in our vascular patients. Time will tell which should be used in the management of the asymptomatic patient or those who have had either surgical or endovascular interventions. Currently, the other new agent, ticagrelor, is under investigation in the EUCLID study (Astra Zeneca). Hopefully there will ultimately be comparative studies of all antiplatelet agents. However, in my current practice I will prescribe clopidogrel for patients who do not have a contraindication and who can afford it. Otherwise aspirin will suffice in most patients. I reserve dual-antiplatelet agents for patients who demonstrate high risk or who have a history of graft or endovascular procedure thrombosis.

Dr. Russell Samson is the medical editor of Vascular Specialist.

Author and Disclosure Information

Publications
Topics
Author and Disclosure Information

Author and Disclosure Information

Body

This is the first antiplatelet agent with a specific PAD indication. We now have multiple such agents to consider in our vascular patients. Time will tell which should be used in the management of the asymptomatic patient or those who have had either surgical or endovascular interventions. Currently, the other new agent, ticagrelor, is under investigation in the EUCLID study (Astra Zeneca). Hopefully there will ultimately be comparative studies of all antiplatelet agents. However, in my current practice I will prescribe clopidogrel for patients who do not have a contraindication and who can afford it. Otherwise aspirin will suffice in most patients. I reserve dual-antiplatelet agents for patients who demonstrate high risk or who have a history of graft or endovascular procedure thrombosis.

Dr. Russell Samson is the medical editor of Vascular Specialist.

Body

This is the first antiplatelet agent with a specific PAD indication. We now have multiple such agents to consider in our vascular patients. Time will tell which should be used in the management of the asymptomatic patient or those who have had either surgical or endovascular interventions. Currently, the other new agent, ticagrelor, is under investigation in the EUCLID study (Astra Zeneca). Hopefully there will ultimately be comparative studies of all antiplatelet agents. However, in my current practice I will prescribe clopidogrel for patients who do not have a contraindication and who can afford it. Otherwise aspirin will suffice in most patients. I reserve dual-antiplatelet agents for patients who demonstrate high risk or who have a history of graft or endovascular procedure thrombosis.

Dr. Russell Samson is the medical editor of Vascular Specialist.

Title
Time will tell
Time will tell

The novel antiplatelet drug vorapaxar has been approved for reducing the risk of myocardial infarction, stroke, cardiovascular death, and need for coronary revascularization procedures in patients with a previous MI or peripheral arterial disease, the Food and Drug Administration announced on May 8.

Vorapaxar is an antagonist of protease-activated receptor-1 (PAR-1), which inhibits the action of thrombin on the platelet, and is the first drug in this class to be approved. Merck Sharp & Dohme will market the drug as Zontivity.

It comes in a tablet formulation.

At a meeting in January, the FDA’s Cardiovascular and Renal Drugs Advisory Committee voted 10-1 to recommend approval of vorapaxar.

"In patients who have had a heart attack or who have peripheral arterial disease, this drug will lower the risk of heart attack, stroke, and cardiovascular death," Dr. Ellis F. Unger, director of the Office of Drug Evaluation I in the FDA’s Center for Drug Evaluation and Research, reported in the FDA statement.

"In the study that supported the drug’s approval, Zontivity lowered this risk from 9.5% to 7.9% over a 3-year period – about 0.5% per year," he noted.

The FDA’s Cardiovascular and Renal Drugs Advisory Committee recommend approval of the novel antiplatelet drug for reducing atherothrombotic events in patients with a history of MI – the indication proposed by Merck. The recommended dose is one 2.5-mg tablet per day.

Because of the increased risk of bleeding, including life-threatening and fatal bleeding, the drug’s prescribing information includes a boxed warning about this risk and a medication guide informing patients about how to use the drug. A history of stroke, or transient ischemic attack, and a history of intracranial bleeding are contraindications.

The indication also includes the statement that treatment with vorapaxar has been shown to reduce the rate of the combined endpoint of cardiovascular death, MI, stroke, and urgent coronary revascularization.

The company conducted two phase III studies in two different groups of patients. In the TRACER (The Thrombin Receptor Antagonist for Clinical Event Reduction in ACS) study, which compared vorapaxar with placebo, added to standard therapy, as acute therapy (2.5 mg per day after a 40-mg loading dose, or placebo) in almost 13,000 hospitalized patients randomized within 24 hours of presenting with ACS (with non-ST elevation), it reduced the risk of atherothrombotic events (N. Engl. J. Med. 2012;366:20-33).

The study, however, was terminated early after an increased risk of major bleeding, including ICH, was detected and the company stopped the treatment in patients with a history of stroke or new stroke in the other phase III trial, the TRA 2P–TIMI 50 (Thrombin-Receptor Antagonist in Secondary Prevention of Atherothrombotic Events) study. The company dropped plans to pursue the acute ACS indication.

The approved indication is based on the results of the TRA 2P–TIMI 50 study, which randomized 26,449 patients to placebo or 2.5 mg of vorapaxar a day, added to standard therapy (including other antiplatelet agents) in 26,449 outpatients with a previous MI, previous ischemic stroke, or peripheral arterial disease (N. Engl. J. Med. 2012;366:1404-13). (Almost 80% of the patients in the study who met the criteria in the proposed indication were on dual antiplatelet therapy with aspirin and a thienopyridine.)

In the overall cohort, including those who had to stop treatment early, compared with placebo, the risk of the primary composite endpoint of cardiovascular death, MI, stroke, or urgent coronary revascularization was reduced by 12%, and the risk of a secondary efficacy endpoint (CV death, MI, stroke) was reduced by 13% over 3 years among those treated with vorapaxar – effects that were statistically significant, Merck said.

The risk of severe or moderate bleeding was increased by 51% among those on vorapaxar over placebo.

The ICH rate over 3 years was 1% among those on vorapaxar, compared with 0.6% among those on placebo, but the absolute risk was higher in those with a history of stroke, according to Merck.

There is "clearly an unmet need" in this group of patients with a history of MI, "and a lack of therapies that have been shown to really be beneficial long term in this population," said the panel chair, Dr. Philip Sager, chair of the scientific programs committee, Cardiac Safety Research Consortium, San Francisco. "While there certainly is some bleeding risk, the benefits on the primary endpoint and secondary endpoint clearly outweigh those risks, and the benefit-risk relationship is positive," he added.

The panelist who voted against approval, Dr. Mori Krantz, director of the Colorado Prevention Center, Denver Health Medical Center, agreed that the primary efficacy endpoint had been met but was concerned about the size of the benefit and the large number of people needed to treat to benefit one patient.

 

 

"Although the intracranial hemorrhages and the major bleeds were potentially manageable, I worry about the amplification of that signal," because triple antiplatelet therapy is "unprecedented," he added.

Other safety concerns cited by panelists included a lack of an antidote and the lack of an effect in people weighing less than 60 kg (132 lb), an unresolved issue.

[email protected]

The novel antiplatelet drug vorapaxar has been approved for reducing the risk of myocardial infarction, stroke, cardiovascular death, and need for coronary revascularization procedures in patients with a previous MI or peripheral arterial disease, the Food and Drug Administration announced on May 8.

Vorapaxar is an antagonist of protease-activated receptor-1 (PAR-1), which inhibits the action of thrombin on the platelet, and is the first drug in this class to be approved. Merck Sharp & Dohme will market the drug as Zontivity.

It comes in a tablet formulation.

At a meeting in January, the FDA’s Cardiovascular and Renal Drugs Advisory Committee voted 10-1 to recommend approval of vorapaxar.

"In patients who have had a heart attack or who have peripheral arterial disease, this drug will lower the risk of heart attack, stroke, and cardiovascular death," Dr. Ellis F. Unger, director of the Office of Drug Evaluation I in the FDA’s Center for Drug Evaluation and Research, reported in the FDA statement.

"In the study that supported the drug’s approval, Zontivity lowered this risk from 9.5% to 7.9% over a 3-year period – about 0.5% per year," he noted.

The FDA’s Cardiovascular and Renal Drugs Advisory Committee recommend approval of the novel antiplatelet drug for reducing atherothrombotic events in patients with a history of MI – the indication proposed by Merck. The recommended dose is one 2.5-mg tablet per day.

Because of the increased risk of bleeding, including life-threatening and fatal bleeding, the drug’s prescribing information includes a boxed warning about this risk and a medication guide informing patients about how to use the drug. A history of stroke, or transient ischemic attack, and a history of intracranial bleeding are contraindications.

The indication also includes the statement that treatment with vorapaxar has been shown to reduce the rate of the combined endpoint of cardiovascular death, MI, stroke, and urgent coronary revascularization.

The company conducted two phase III studies in two different groups of patients. In the TRACER (The Thrombin Receptor Antagonist for Clinical Event Reduction in ACS) study, which compared vorapaxar with placebo, added to standard therapy, as acute therapy (2.5 mg per day after a 40-mg loading dose, or placebo) in almost 13,000 hospitalized patients randomized within 24 hours of presenting with ACS (with non-ST elevation), it reduced the risk of atherothrombotic events (N. Engl. J. Med. 2012;366:20-33).

The study, however, was terminated early after an increased risk of major bleeding, including ICH, was detected and the company stopped the treatment in patients with a history of stroke or new stroke in the other phase III trial, the TRA 2P–TIMI 50 (Thrombin-Receptor Antagonist in Secondary Prevention of Atherothrombotic Events) study. The company dropped plans to pursue the acute ACS indication.

The approved indication is based on the results of the TRA 2P–TIMI 50 study, which randomized 26,449 patients to placebo or 2.5 mg of vorapaxar a day, added to standard therapy (including other antiplatelet agents) in 26,449 outpatients with a previous MI, previous ischemic stroke, or peripheral arterial disease (N. Engl. J. Med. 2012;366:1404-13). (Almost 80% of the patients in the study who met the criteria in the proposed indication were on dual antiplatelet therapy with aspirin and a thienopyridine.)

In the overall cohort, including those who had to stop treatment early, compared with placebo, the risk of the primary composite endpoint of cardiovascular death, MI, stroke, or urgent coronary revascularization was reduced by 12%, and the risk of a secondary efficacy endpoint (CV death, MI, stroke) was reduced by 13% over 3 years among those treated with vorapaxar – effects that were statistically significant, Merck said.

The risk of severe or moderate bleeding was increased by 51% among those on vorapaxar over placebo.

The ICH rate over 3 years was 1% among those on vorapaxar, compared with 0.6% among those on placebo, but the absolute risk was higher in those with a history of stroke, according to Merck.

There is "clearly an unmet need" in this group of patients with a history of MI, "and a lack of therapies that have been shown to really be beneficial long term in this population," said the panel chair, Dr. Philip Sager, chair of the scientific programs committee, Cardiac Safety Research Consortium, San Francisco. "While there certainly is some bleeding risk, the benefits on the primary endpoint and secondary endpoint clearly outweigh those risks, and the benefit-risk relationship is positive," he added.

The panelist who voted against approval, Dr. Mori Krantz, director of the Colorado Prevention Center, Denver Health Medical Center, agreed that the primary efficacy endpoint had been met but was concerned about the size of the benefit and the large number of people needed to treat to benefit one patient.

 

 

"Although the intracranial hemorrhages and the major bleeds were potentially manageable, I worry about the amplification of that signal," because triple antiplatelet therapy is "unprecedented," he added.

Other safety concerns cited by panelists included a lack of an antidote and the lack of an effect in people weighing less than 60 kg (132 lb), an unresolved issue.

[email protected]

Publications
Publications
Topics
Article Type
Display Headline
FDA approves vorapaxar, a new oral antiplatelet
Display Headline
FDA approves vorapaxar, a new oral antiplatelet
Article Source

PURLs Copyright

Inside the Article

Thrombolysis may offer benefit in stable pulmonary embolism

Still a case-by-case decision
Article Type
Changed
Fri, 01/18/2019 - 13:41
Display Headline
Thrombolysis may offer benefit in stable pulmonary embolism

Thrombolytic therapy decreased all-cause mortality in patients with hemodynamically stable pulmonary embolism associated with right ventricular dysfunction – those at "intermediate risk," according to a meta-analysis published online June 17 in JAMA.

The investigators described their study of 16 randomized, controlled clinical trials involving 2,115 patients as "the first analysis of thrombolysis in PE that has sufficient statistical power to detect associations with a meaningful mortality reduction." If their findings are confirmed in future randomized clinical trials, "there may be a shift in the treatment of selected patients with intermediate-risk PE using thrombolytics."

However, "the optimism regarding this clinical advantage must be tempered by [our] finding of significantly increased risk of major bleeding and intracranial hemorrhage associated with thrombolytic therapy, particularly for patients older than 65 years," said Dr. Saurav Chatterjee of the division of cardiology, St. Luke’s-Roosevelt Hospital Center of the Mount Sinai Health System, New York, and his associates (JAMA 2014;311:2414-21).

The study population included 1,499 patients who had hemodynamically stable PE associated with right ventricular dysfunction, the largest subset of patients seen in clinical practice and the group for whom the risks and benefits of thrombolysis are the most unclear.

After a mean follow-up of 82 days, overall mortality was 2.17% in patients who received thrombolysis, compared with 3.89% in those who received anticoagulation. In addition, the risk of recurrent PE was significantly lower with thrombolytic therapy (1.17%) than with anticoagulation (3.04%).

However, the rate of major bleeding was 9.24% for thrombolytic therapy, compared with 3.42% for anticoagulation. And the rate of intracranial hemorrhage was 1.46% for thrombolysis, compared with 0.19% for anticoagulation, the investigators said.

The bleeding risk was especially high in patients aged 65 years and older. Attenuation of this risk in younger patients suggests that they may be considered stronger candidates for thrombolytic therapy, Dr. Chatterjee and his associates said.

Dr. Chatterjee reported no financial conflicts; his associates reported ties to AstraZeneca, Boston Scientific, Cardiostem, Cordis, EKOS Corporation, Embolitech, GenWay, Johnson & Johnson, Soteria, and Vascular Magnetics.

Click for Credit Link
Body


Dr. Joshua Beckman

Dr. Chatterjee and his associates calculated the net clinical benefit of thrombolysis, and their result "suggests evidence of modest efficacy in intermediate-risk PE," said Dr. Joshua A. Beckman.

But their findings do not yet add up to a change in the standard of care. Each clinician must decide on an individualized basis which of these patients should receive thrombolytic therapy, based on clinical presentation, comorbid conditions, and both the physician’s and the patient’s tolerance of risk.

Dr. Beckman is in the cardiovascular division at Brigham and Women’s Hospital, Boston. He reported being a board member for Vascular Interventional Advances; receiving grant funding from Bristol-Myers Squibb; and consulting for AstraZeneca, Boston Scientific, Ferring, Merck, and Novartis. These remarks were taken from his editorial accompanying Dr. Chatterjee’s report (JAMA 2014;311:2385-6).

Author and Disclosure Information

Publications
Topics
Legacy Keywords
Thrombolytic therapy, hemodynamically stable pulmonary embolism, right ventricular dysfunction, intermediate-risk PE, thrombolytics,
Sections
Click for Credit Link
Click for Credit Link
Author and Disclosure Information

Author and Disclosure Information

Body


Dr. Joshua Beckman

Dr. Chatterjee and his associates calculated the net clinical benefit of thrombolysis, and their result "suggests evidence of modest efficacy in intermediate-risk PE," said Dr. Joshua A. Beckman.

But their findings do not yet add up to a change in the standard of care. Each clinician must decide on an individualized basis which of these patients should receive thrombolytic therapy, based on clinical presentation, comorbid conditions, and both the physician’s and the patient’s tolerance of risk.

Dr. Beckman is in the cardiovascular division at Brigham and Women’s Hospital, Boston. He reported being a board member for Vascular Interventional Advances; receiving grant funding from Bristol-Myers Squibb; and consulting for AstraZeneca, Boston Scientific, Ferring, Merck, and Novartis. These remarks were taken from his editorial accompanying Dr. Chatterjee’s report (JAMA 2014;311:2385-6).

Body


Dr. Joshua Beckman

Dr. Chatterjee and his associates calculated the net clinical benefit of thrombolysis, and their result "suggests evidence of modest efficacy in intermediate-risk PE," said Dr. Joshua A. Beckman.

But their findings do not yet add up to a change in the standard of care. Each clinician must decide on an individualized basis which of these patients should receive thrombolytic therapy, based on clinical presentation, comorbid conditions, and both the physician’s and the patient’s tolerance of risk.

Dr. Beckman is in the cardiovascular division at Brigham and Women’s Hospital, Boston. He reported being a board member for Vascular Interventional Advances; receiving grant funding from Bristol-Myers Squibb; and consulting for AstraZeneca, Boston Scientific, Ferring, Merck, and Novartis. These remarks were taken from his editorial accompanying Dr. Chatterjee’s report (JAMA 2014;311:2385-6).

Title
Still a case-by-case decision
Still a case-by-case decision

Thrombolytic therapy decreased all-cause mortality in patients with hemodynamically stable pulmonary embolism associated with right ventricular dysfunction – those at "intermediate risk," according to a meta-analysis published online June 17 in JAMA.

The investigators described their study of 16 randomized, controlled clinical trials involving 2,115 patients as "the first analysis of thrombolysis in PE that has sufficient statistical power to detect associations with a meaningful mortality reduction." If their findings are confirmed in future randomized clinical trials, "there may be a shift in the treatment of selected patients with intermediate-risk PE using thrombolytics."

However, "the optimism regarding this clinical advantage must be tempered by [our] finding of significantly increased risk of major bleeding and intracranial hemorrhage associated with thrombolytic therapy, particularly for patients older than 65 years," said Dr. Saurav Chatterjee of the division of cardiology, St. Luke’s-Roosevelt Hospital Center of the Mount Sinai Health System, New York, and his associates (JAMA 2014;311:2414-21).

The study population included 1,499 patients who had hemodynamically stable PE associated with right ventricular dysfunction, the largest subset of patients seen in clinical practice and the group for whom the risks and benefits of thrombolysis are the most unclear.

After a mean follow-up of 82 days, overall mortality was 2.17% in patients who received thrombolysis, compared with 3.89% in those who received anticoagulation. In addition, the risk of recurrent PE was significantly lower with thrombolytic therapy (1.17%) than with anticoagulation (3.04%).

However, the rate of major bleeding was 9.24% for thrombolytic therapy, compared with 3.42% for anticoagulation. And the rate of intracranial hemorrhage was 1.46% for thrombolysis, compared with 0.19% for anticoagulation, the investigators said.

The bleeding risk was especially high in patients aged 65 years and older. Attenuation of this risk in younger patients suggests that they may be considered stronger candidates for thrombolytic therapy, Dr. Chatterjee and his associates said.

Dr. Chatterjee reported no financial conflicts; his associates reported ties to AstraZeneca, Boston Scientific, Cardiostem, Cordis, EKOS Corporation, Embolitech, GenWay, Johnson & Johnson, Soteria, and Vascular Magnetics.

Thrombolytic therapy decreased all-cause mortality in patients with hemodynamically stable pulmonary embolism associated with right ventricular dysfunction – those at "intermediate risk," according to a meta-analysis published online June 17 in JAMA.

The investigators described their study of 16 randomized, controlled clinical trials involving 2,115 patients as "the first analysis of thrombolysis in PE that has sufficient statistical power to detect associations with a meaningful mortality reduction." If their findings are confirmed in future randomized clinical trials, "there may be a shift in the treatment of selected patients with intermediate-risk PE using thrombolytics."

However, "the optimism regarding this clinical advantage must be tempered by [our] finding of significantly increased risk of major bleeding and intracranial hemorrhage associated with thrombolytic therapy, particularly for patients older than 65 years," said Dr. Saurav Chatterjee of the division of cardiology, St. Luke’s-Roosevelt Hospital Center of the Mount Sinai Health System, New York, and his associates (JAMA 2014;311:2414-21).

The study population included 1,499 patients who had hemodynamically stable PE associated with right ventricular dysfunction, the largest subset of patients seen in clinical practice and the group for whom the risks and benefits of thrombolysis are the most unclear.

After a mean follow-up of 82 days, overall mortality was 2.17% in patients who received thrombolysis, compared with 3.89% in those who received anticoagulation. In addition, the risk of recurrent PE was significantly lower with thrombolytic therapy (1.17%) than with anticoagulation (3.04%).

However, the rate of major bleeding was 9.24% for thrombolytic therapy, compared with 3.42% for anticoagulation. And the rate of intracranial hemorrhage was 1.46% for thrombolysis, compared with 0.19% for anticoagulation, the investigators said.

The bleeding risk was especially high in patients aged 65 years and older. Attenuation of this risk in younger patients suggests that they may be considered stronger candidates for thrombolytic therapy, Dr. Chatterjee and his associates said.

Dr. Chatterjee reported no financial conflicts; his associates reported ties to AstraZeneca, Boston Scientific, Cardiostem, Cordis, EKOS Corporation, Embolitech, GenWay, Johnson & Johnson, Soteria, and Vascular Magnetics.

Publications
Publications
Topics
Article Type
Display Headline
Thrombolysis may offer benefit in stable pulmonary embolism
Display Headline
Thrombolysis may offer benefit in stable pulmonary embolism
Legacy Keywords
Thrombolytic therapy, hemodynamically stable pulmonary embolism, right ventricular dysfunction, intermediate-risk PE, thrombolytics,
Legacy Keywords
Thrombolytic therapy, hemodynamically stable pulmonary embolism, right ventricular dysfunction, intermediate-risk PE, thrombolytics,
Sections
Article Source

FROM JAMA

PURLs Copyright

Inside the Article

Vitals

Key clinical point: Thrombolysis may be a therapeutic alternative to anticoagulation in some patients with stable, intermediate-risk pulmonary embolism.

Major finding: Mortality was 2.17% in PE patients who received thrombolysis, compared with 3.89% in those who received anticoagulation; the risk of recurrent PE also was significantly lower with thrombolytic therapy (1.17%) than with anticoagulation (3.04%).

Data source: A meta-analysis of 16 randomized, controlled trials involving 2,115 patients with PE, including 1,499 with intermediate-risk PE, who were followed for a mean of 82 days.

Disclosures: Dr. Chatterjee reported no financial conflicts; his associates reported ties to AstraZeneca, Boston Scientific, Cardiostem, Cordis, EKOS Corporation, Embolitech, GenWay, Johnson & Johnson, Soteria, and Vascular Magnetics.

Residents, postop complications linked

Interpret results with caution
Article Type
Changed
Tue, 12/13/2016 - 12:08
Display Headline
Residents, postop complications linked

BOSTON – Resident participation in emergency general surgery cases was independently associated with a host of complications – pulmonary embolism, surgical site infections, and unplanned reoperation in a secondary analysis of the American College of Surgeons prospective National Surgical Quality Improvement database.

Adequate exposure of residents to emergency general surgery is crucial for surgical training, but academic operating teams should be mindful of this association, Dr. George Kasotakis said at the annual meeting of the American Surgical Association.

Patrice Wendling/Frontline Medical News
Dr. George Kasotakis

Three papers have shown resident participation modestly increases complications in elective surgery, but their impact is not well understood for emergency general surgery, where patient physiology is typically deranged and timely surgery is imperative.

Dr. Kasotakis and his colleagues at Boston University identified 141,010 patients who underwent emergency general surgery procedures in the 2005-2010 American College of Surgeons prospective National Surgical Quality Improvement database. Because of the nonrandom assignment of more complex cases to resident participation, patients were matched 1:1 based on age; gender; use of alcohol, tobacco, and steroids; inpatient status; obesity; diabetes; renal failure; cardiopulmonary disease; and expected probability for morbidity and mortality. Regression models were fitted for each outcome and adjusted for the same risk factors and operative time.

The most common procedures were appendectomy (40%), exploratory laparotomy (8.75%), bowel resection (9.2%), cholecystectomy (6%), and lysis of adhesions (6%).

Thirty-day mortality was similar with and without residents (3.25% vs. 2.96%; P = .082), but hospital length of stay was longer by about a half a day with residents (4.97 days vs. 4.59 days; P = .019), said Dr. Kasotakis, an acute care surgeon and intensivist.

Resident participation added about 20 minutes to operative (75 minutes vs. 59 minutes; P less than .001) and anesthesia (122 minutes vs. 100 minutes; P less than .001) times.

Intraoperative transfusions were more common with residents (3.43% vs. 2.55%; P less than .001), perhaps because of longer operating room times, and, as a result, fewer postoperative transfusions were needed (1.12% vs. 1.28% P = .031), he said. Unplanned reoperations, however, were more common with residents, as well (4.22% vs. 3.80%; P = .002).

Postsurgical superficial wound infections (3.5% vs. 2.78%; P less than .001) and organ space surgical site infections (2.27% vs. 1.77%; P less than .001) were more common in the resident group, while wound dehiscence was not (0.63% vs. 0.69%; P = .266), Dr. Kasotakis noted.

Pulmonary complications were significantly more common in the resident group including postoperative pneumonia (1.85% vs. 1.67%; P = .04), reintubation (1.64% vs. 1.15%; P less than .001), and mechanical ventilation for more than 48 hours (2.87% vs. 2.06%; P less than .001).

The same was true for deep vein thrombosis (DVT) (0.80% vs. 0.62%; P = .002) and pulmonary embolism (PE) (0.43% vs. 0.28%; P less than .001).

Urinary tract infections (UTI) were higher with resident participation (1.45% vs. 1.14%; P less than .001), as was sepsis (2.42% vs. 2.13%; P = .005), likely because of the increase in surgical infections, Dr. Kasotakis said.

Thankfully, significant cardiac complications and septic shock were not more common with residents, he said.

Adjusted analyses

After adjustment for operative duration, case complexity and pre-existing comorbidities, residents did not increase length of stay (odds ratio, 0.07; P = .242) or septic events (OR, 1.07; P = .155), but their participation was still independently associated with about 20% more superficial surgical site infections (odds ratio, 1.23; P less than .001), organ space infections (OR, 1.21; P less than .001), UTIs (OR, 1.23; P = .001), and intraoperative transfusions (OR, 1.20; P = .001), he said.

Also, about 8% more patients required a return trip to the operating room when residents participated (OR, 1.08; P = .041).

"These outcomes can perhaps be attributed to their underdeveloped surgical skills," Dr. Kasotakis said.

The incidence of DVT and PE were also higher by about 25% (OR, 1.25; P = .011) and 40% (OR, 1.42; P = .005), respectively, perhaps because of delayed DVT prophylaxis initiation because of concerns of hemostasis or missed doses due to additional return trips to the emergency department, he suggested.

Interestingly, reintubation and prolonged mechanical ventilation rates were increased by about 40% (OR, 1.38; OR, 1.43; both P less than .001), perhaps because of prolonged operative times or greater resuscitation requirements, he added.

Dr. Kasotakis was quick to point out that this was a secondary analysis of a data set not originally intended to assess the effect of trainee participation, that no information was available on the degree of resident involvement during surgery or in perioperative care, and that participating institutions were skewed toward tertiary centers, which typically receive more complex cases.

 

 

"Staff surgeons should supervise as needed and minimize unnecessary [emergency department] time. And residents, for their part, should be well prepared for emergency procedures through simulation training and aim to maximize their operating room efficiency," he suggested.

The results sparked a flurry of rebuttals led off by discussant Dr. Julie Ann Sosa, Duke University, Durham, N.C.,who said they conflict with other analyses showing little to no impact from residents in elective cases.

"If not interpreted with care, policy makers, payers, and the public could construe that surgical care at academic health centers is compromised by trainees, which could have unfortunate ramifications for everyone in the room as well as the trainees and the patients," she said.

Dr. Sosa expressed concern about drawing causal inferences from an observational study in the setting of possible selection bias and said attempts to match for case complexity using CPT codes do not necessarily account for say, "the difference between a routine appendectomy that takes 15-30 minutes and a complex one that takes 3 hours for a perforation."

Some attendees questioned why the authors didn’t match the institutions in the analysis and chose to ascribe all of the outcomes to residents, with a round of applause following the suggestion that the paper should be titled "Academic centers increase emergency surgery complications." Other attendees questioned whether the poor outcomes reflect resident training and supervision.

Dr. George Velmahos, Massachusetts General Hospital, Boston, questioned whether hospitals have a medical/legal responsibility to inform patients that a resident is in the operating room and may impact outcomes.

Dr. Kasotakis said that institutions may want to add a clause to consent paperwork stating that residents and trainees will be participating.

The complete manuscript of this study and its presentation at the American Surgical Association’s 134th Annual Meeting is anticipated to be published in the Annals of Surgery, pending editorial review.

Dr. Kasotakis reported no conflicts.

[email protected]

Body


Dr. Sapan S. Desai

While it is tempting to value the very high sample sizes reported in studies that utilize administrative database sources such as NSQIP, it is with great caution that we should interpret the results of these studies. Databases are a valuable source of determining incidence, costs, and even some correlations among various factors. Correlations, however, do not imply causation. For instance, one could say that there is a high correlation between the number of taxis on the street after 3 a.m. and the number of crimes, but that does not mean that taxi drivers transform into criminals during the hour of the wolf.

Databases are a blunt tool for identifying trends in data over large samples and over many years. However, as noted in the study presented by Dr. Kasotakis, the NSQIP does not track the extent of resident participation in operative cases. In fact, the exact variable that is tracked is entitled "ATTEND" in position 16 of the NSQIP and is as follows: 1) Attending & Resident in OR, 2) Attending Alone, and 3) Attending Not Present, but Available. It does not characterize the amount of the case completed by the resident, nor does it state the level of training of the resident. It does not mention whether medical students, visitors, nurse trainees, PAs, new scrub techs, or other personnel are present. In fact, there is no way to know who did what during the case, which is a requirement in order to be able to reliably and accurately determine that the resident is the culprit for longer case times and more intraoperative transfusions. This specific variable has insufficient granularity: the conclusion that "[adding] a clause to consent paperwork stating that residents and trainees will be participating in the case" due to the "underdeveloped surgical skills" of trainees, among other factors, is invalid.

As Dr. Sosa indicated, it is dangerous to imply that these correlations somehow imply causation, as this may lead to adverse impacts on training and negatively impact patient care far more than a possible 20 minute increase in the duration of an operation. The sole utility of this paper is that it is hypothesis generating; only a properly designed prospective study can truly study the positive and negative impacts on patient care due to resident education in the operating room. The question is, do we really want to know the answer to this question and will it truly affect what we do now?

Sapan S. Desai, M.D., is the resident medical editor for Vascular Specialist.

Author and Disclosure Information

Publications
Legacy Keywords
Resident participation, emergency general surgery, complications, pulmonary embolism, surgical site infections, unplanned reoperation, American College of Surgeons,
Sections
Author and Disclosure Information

Author and Disclosure Information

Body


Dr. Sapan S. Desai

While it is tempting to value the very high sample sizes reported in studies that utilize administrative database sources such as NSQIP, it is with great caution that we should interpret the results of these studies. Databases are a valuable source of determining incidence, costs, and even some correlations among various factors. Correlations, however, do not imply causation. For instance, one could say that there is a high correlation between the number of taxis on the street after 3 a.m. and the number of crimes, but that does not mean that taxi drivers transform into criminals during the hour of the wolf.

Databases are a blunt tool for identifying trends in data over large samples and over many years. However, as noted in the study presented by Dr. Kasotakis, the NSQIP does not track the extent of resident participation in operative cases. In fact, the exact variable that is tracked is entitled "ATTEND" in position 16 of the NSQIP and is as follows: 1) Attending & Resident in OR, 2) Attending Alone, and 3) Attending Not Present, but Available. It does not characterize the amount of the case completed by the resident, nor does it state the level of training of the resident. It does not mention whether medical students, visitors, nurse trainees, PAs, new scrub techs, or other personnel are present. In fact, there is no way to know who did what during the case, which is a requirement in order to be able to reliably and accurately determine that the resident is the culprit for longer case times and more intraoperative transfusions. This specific variable has insufficient granularity: the conclusion that "[adding] a clause to consent paperwork stating that residents and trainees will be participating in the case" due to the "underdeveloped surgical skills" of trainees, among other factors, is invalid.

As Dr. Sosa indicated, it is dangerous to imply that these correlations somehow imply causation, as this may lead to adverse impacts on training and negatively impact patient care far more than a possible 20 minute increase in the duration of an operation. The sole utility of this paper is that it is hypothesis generating; only a properly designed prospective study can truly study the positive and negative impacts on patient care due to resident education in the operating room. The question is, do we really want to know the answer to this question and will it truly affect what we do now?

Sapan S. Desai, M.D., is the resident medical editor for Vascular Specialist.

Body


Dr. Sapan S. Desai

While it is tempting to value the very high sample sizes reported in studies that utilize administrative database sources such as NSQIP, it is with great caution that we should interpret the results of these studies. Databases are a valuable source of determining incidence, costs, and even some correlations among various factors. Correlations, however, do not imply causation. For instance, one could say that there is a high correlation between the number of taxis on the street after 3 a.m. and the number of crimes, but that does not mean that taxi drivers transform into criminals during the hour of the wolf.

Databases are a blunt tool for identifying trends in data over large samples and over many years. However, as noted in the study presented by Dr. Kasotakis, the NSQIP does not track the extent of resident participation in operative cases. In fact, the exact variable that is tracked is entitled "ATTEND" in position 16 of the NSQIP and is as follows: 1) Attending & Resident in OR, 2) Attending Alone, and 3) Attending Not Present, but Available. It does not characterize the amount of the case completed by the resident, nor does it state the level of training of the resident. It does not mention whether medical students, visitors, nurse trainees, PAs, new scrub techs, or other personnel are present. In fact, there is no way to know who did what during the case, which is a requirement in order to be able to reliably and accurately determine that the resident is the culprit for longer case times and more intraoperative transfusions. This specific variable has insufficient granularity: the conclusion that "[adding] a clause to consent paperwork stating that residents and trainees will be participating in the case" due to the "underdeveloped surgical skills" of trainees, among other factors, is invalid.

As Dr. Sosa indicated, it is dangerous to imply that these correlations somehow imply causation, as this may lead to adverse impacts on training and negatively impact patient care far more than a possible 20 minute increase in the duration of an operation. The sole utility of this paper is that it is hypothesis generating; only a properly designed prospective study can truly study the positive and negative impacts on patient care due to resident education in the operating room. The question is, do we really want to know the answer to this question and will it truly affect what we do now?

Sapan S. Desai, M.D., is the resident medical editor for Vascular Specialist.

Title
Interpret results with caution
Interpret results with caution

BOSTON – Resident participation in emergency general surgery cases was independently associated with a host of complications – pulmonary embolism, surgical site infections, and unplanned reoperation in a secondary analysis of the American College of Surgeons prospective National Surgical Quality Improvement database.

Adequate exposure of residents to emergency general surgery is crucial for surgical training, but academic operating teams should be mindful of this association, Dr. George Kasotakis said at the annual meeting of the American Surgical Association.

Patrice Wendling/Frontline Medical News
Dr. George Kasotakis

Three papers have shown resident participation modestly increases complications in elective surgery, but their impact is not well understood for emergency general surgery, where patient physiology is typically deranged and timely surgery is imperative.

Dr. Kasotakis and his colleagues at Boston University identified 141,010 patients who underwent emergency general surgery procedures in the 2005-2010 American College of Surgeons prospective National Surgical Quality Improvement database. Because of the nonrandom assignment of more complex cases to resident participation, patients were matched 1:1 based on age; gender; use of alcohol, tobacco, and steroids; inpatient status; obesity; diabetes; renal failure; cardiopulmonary disease; and expected probability for morbidity and mortality. Regression models were fitted for each outcome and adjusted for the same risk factors and operative time.

The most common procedures were appendectomy (40%), exploratory laparotomy (8.75%), bowel resection (9.2%), cholecystectomy (6%), and lysis of adhesions (6%).

Thirty-day mortality was similar with and without residents (3.25% vs. 2.96%; P = .082), but hospital length of stay was longer by about a half a day with residents (4.97 days vs. 4.59 days; P = .019), said Dr. Kasotakis, an acute care surgeon and intensivist.

Resident participation added about 20 minutes to operative (75 minutes vs. 59 minutes; P less than .001) and anesthesia (122 minutes vs. 100 minutes; P less than .001) times.

Intraoperative transfusions were more common with residents (3.43% vs. 2.55%; P less than .001), perhaps because of longer operating room times, and, as a result, fewer postoperative transfusions were needed (1.12% vs. 1.28% P = .031), he said. Unplanned reoperations, however, were more common with residents, as well (4.22% vs. 3.80%; P = .002).

Postsurgical superficial wound infections (3.5% vs. 2.78%; P less than .001) and organ space surgical site infections (2.27% vs. 1.77%; P less than .001) were more common in the resident group, while wound dehiscence was not (0.63% vs. 0.69%; P = .266), Dr. Kasotakis noted.

Pulmonary complications were significantly more common in the resident group including postoperative pneumonia (1.85% vs. 1.67%; P = .04), reintubation (1.64% vs. 1.15%; P less than .001), and mechanical ventilation for more than 48 hours (2.87% vs. 2.06%; P less than .001).

The same was true for deep vein thrombosis (DVT) (0.80% vs. 0.62%; P = .002) and pulmonary embolism (PE) (0.43% vs. 0.28%; P less than .001).

Urinary tract infections (UTI) were higher with resident participation (1.45% vs. 1.14%; P less than .001), as was sepsis (2.42% vs. 2.13%; P = .005), likely because of the increase in surgical infections, Dr. Kasotakis said.

Thankfully, significant cardiac complications and septic shock were not more common with residents, he said.

Adjusted analyses

After adjustment for operative duration, case complexity and pre-existing comorbidities, residents did not increase length of stay (odds ratio, 0.07; P = .242) or septic events (OR, 1.07; P = .155), but their participation was still independently associated with about 20% more superficial surgical site infections (odds ratio, 1.23; P less than .001), organ space infections (OR, 1.21; P less than .001), UTIs (OR, 1.23; P = .001), and intraoperative transfusions (OR, 1.20; P = .001), he said.

Also, about 8% more patients required a return trip to the operating room when residents participated (OR, 1.08; P = .041).

"These outcomes can perhaps be attributed to their underdeveloped surgical skills," Dr. Kasotakis said.

The incidence of DVT and PE were also higher by about 25% (OR, 1.25; P = .011) and 40% (OR, 1.42; P = .005), respectively, perhaps because of delayed DVT prophylaxis initiation because of concerns of hemostasis or missed doses due to additional return trips to the emergency department, he suggested.

Interestingly, reintubation and prolonged mechanical ventilation rates were increased by about 40% (OR, 1.38; OR, 1.43; both P less than .001), perhaps because of prolonged operative times or greater resuscitation requirements, he added.

Dr. Kasotakis was quick to point out that this was a secondary analysis of a data set not originally intended to assess the effect of trainee participation, that no information was available on the degree of resident involvement during surgery or in perioperative care, and that participating institutions were skewed toward tertiary centers, which typically receive more complex cases.

 

 

"Staff surgeons should supervise as needed and minimize unnecessary [emergency department] time. And residents, for their part, should be well prepared for emergency procedures through simulation training and aim to maximize their operating room efficiency," he suggested.

The results sparked a flurry of rebuttals led off by discussant Dr. Julie Ann Sosa, Duke University, Durham, N.C.,who said they conflict with other analyses showing little to no impact from residents in elective cases.

"If not interpreted with care, policy makers, payers, and the public could construe that surgical care at academic health centers is compromised by trainees, which could have unfortunate ramifications for everyone in the room as well as the trainees and the patients," she said.

Dr. Sosa expressed concern about drawing causal inferences from an observational study in the setting of possible selection bias and said attempts to match for case complexity using CPT codes do not necessarily account for say, "the difference between a routine appendectomy that takes 15-30 minutes and a complex one that takes 3 hours for a perforation."

Some attendees questioned why the authors didn’t match the institutions in the analysis and chose to ascribe all of the outcomes to residents, with a round of applause following the suggestion that the paper should be titled "Academic centers increase emergency surgery complications." Other attendees questioned whether the poor outcomes reflect resident training and supervision.

Dr. George Velmahos, Massachusetts General Hospital, Boston, questioned whether hospitals have a medical/legal responsibility to inform patients that a resident is in the operating room and may impact outcomes.

Dr. Kasotakis said that institutions may want to add a clause to consent paperwork stating that residents and trainees will be participating.

The complete manuscript of this study and its presentation at the American Surgical Association’s 134th Annual Meeting is anticipated to be published in the Annals of Surgery, pending editorial review.

Dr. Kasotakis reported no conflicts.

[email protected]

BOSTON – Resident participation in emergency general surgery cases was independently associated with a host of complications – pulmonary embolism, surgical site infections, and unplanned reoperation in a secondary analysis of the American College of Surgeons prospective National Surgical Quality Improvement database.

Adequate exposure of residents to emergency general surgery is crucial for surgical training, but academic operating teams should be mindful of this association, Dr. George Kasotakis said at the annual meeting of the American Surgical Association.

Patrice Wendling/Frontline Medical News
Dr. George Kasotakis

Three papers have shown resident participation modestly increases complications in elective surgery, but their impact is not well understood for emergency general surgery, where patient physiology is typically deranged and timely surgery is imperative.

Dr. Kasotakis and his colleagues at Boston University identified 141,010 patients who underwent emergency general surgery procedures in the 2005-2010 American College of Surgeons prospective National Surgical Quality Improvement database. Because of the nonrandom assignment of more complex cases to resident participation, patients were matched 1:1 based on age; gender; use of alcohol, tobacco, and steroids; inpatient status; obesity; diabetes; renal failure; cardiopulmonary disease; and expected probability for morbidity and mortality. Regression models were fitted for each outcome and adjusted for the same risk factors and operative time.

The most common procedures were appendectomy (40%), exploratory laparotomy (8.75%), bowel resection (9.2%), cholecystectomy (6%), and lysis of adhesions (6%).

Thirty-day mortality was similar with and without residents (3.25% vs. 2.96%; P = .082), but hospital length of stay was longer by about a half a day with residents (4.97 days vs. 4.59 days; P = .019), said Dr. Kasotakis, an acute care surgeon and intensivist.

Resident participation added about 20 minutes to operative (75 minutes vs. 59 minutes; P less than .001) and anesthesia (122 minutes vs. 100 minutes; P less than .001) times.

Intraoperative transfusions were more common with residents (3.43% vs. 2.55%; P less than .001), perhaps because of longer operating room times, and, as a result, fewer postoperative transfusions were needed (1.12% vs. 1.28% P = .031), he said. Unplanned reoperations, however, were more common with residents, as well (4.22% vs. 3.80%; P = .002).

Postsurgical superficial wound infections (3.5% vs. 2.78%; P less than .001) and organ space surgical site infections (2.27% vs. 1.77%; P less than .001) were more common in the resident group, while wound dehiscence was not (0.63% vs. 0.69%; P = .266), Dr. Kasotakis noted.

Pulmonary complications were significantly more common in the resident group including postoperative pneumonia (1.85% vs. 1.67%; P = .04), reintubation (1.64% vs. 1.15%; P less than .001), and mechanical ventilation for more than 48 hours (2.87% vs. 2.06%; P less than .001).

The same was true for deep vein thrombosis (DVT) (0.80% vs. 0.62%; P = .002) and pulmonary embolism (PE) (0.43% vs. 0.28%; P less than .001).

Urinary tract infections (UTI) were higher with resident participation (1.45% vs. 1.14%; P less than .001), as was sepsis (2.42% vs. 2.13%; P = .005), likely because of the increase in surgical infections, Dr. Kasotakis said.

Thankfully, significant cardiac complications and septic shock were not more common with residents, he said.

Adjusted analyses

After adjustment for operative duration, case complexity and pre-existing comorbidities, residents did not increase length of stay (odds ratio, 0.07; P = .242) or septic events (OR, 1.07; P = .155), but their participation was still independently associated with about 20% more superficial surgical site infections (odds ratio, 1.23; P less than .001), organ space infections (OR, 1.21; P less than .001), UTIs (OR, 1.23; P = .001), and intraoperative transfusions (OR, 1.20; P = .001), he said.

Also, about 8% more patients required a return trip to the operating room when residents participated (OR, 1.08; P = .041).

"These outcomes can perhaps be attributed to their underdeveloped surgical skills," Dr. Kasotakis said.

The incidence of DVT and PE were also higher by about 25% (OR, 1.25; P = .011) and 40% (OR, 1.42; P = .005), respectively, perhaps because of delayed DVT prophylaxis initiation because of concerns of hemostasis or missed doses due to additional return trips to the emergency department, he suggested.

Interestingly, reintubation and prolonged mechanical ventilation rates were increased by about 40% (OR, 1.38; OR, 1.43; both P less than .001), perhaps because of prolonged operative times or greater resuscitation requirements, he added.

Dr. Kasotakis was quick to point out that this was a secondary analysis of a data set not originally intended to assess the effect of trainee participation, that no information was available on the degree of resident involvement during surgery or in perioperative care, and that participating institutions were skewed toward tertiary centers, which typically receive more complex cases.

 

 

"Staff surgeons should supervise as needed and minimize unnecessary [emergency department] time. And residents, for their part, should be well prepared for emergency procedures through simulation training and aim to maximize their operating room efficiency," he suggested.

The results sparked a flurry of rebuttals led off by discussant Dr. Julie Ann Sosa, Duke University, Durham, N.C.,who said they conflict with other analyses showing little to no impact from residents in elective cases.

"If not interpreted with care, policy makers, payers, and the public could construe that surgical care at academic health centers is compromised by trainees, which could have unfortunate ramifications for everyone in the room as well as the trainees and the patients," she said.

Dr. Sosa expressed concern about drawing causal inferences from an observational study in the setting of possible selection bias and said attempts to match for case complexity using CPT codes do not necessarily account for say, "the difference between a routine appendectomy that takes 15-30 minutes and a complex one that takes 3 hours for a perforation."

Some attendees questioned why the authors didn’t match the institutions in the analysis and chose to ascribe all of the outcomes to residents, with a round of applause following the suggestion that the paper should be titled "Academic centers increase emergency surgery complications." Other attendees questioned whether the poor outcomes reflect resident training and supervision.

Dr. George Velmahos, Massachusetts General Hospital, Boston, questioned whether hospitals have a medical/legal responsibility to inform patients that a resident is in the operating room and may impact outcomes.

Dr. Kasotakis said that institutions may want to add a clause to consent paperwork stating that residents and trainees will be participating.

The complete manuscript of this study and its presentation at the American Surgical Association’s 134th Annual Meeting is anticipated to be published in the Annals of Surgery, pending editorial review.

Dr. Kasotakis reported no conflicts.

[email protected]

Publications
Publications
Article Type
Display Headline
Residents, postop complications linked
Display Headline
Residents, postop complications linked
Legacy Keywords
Resident participation, emergency general surgery, complications, pulmonary embolism, surgical site infections, unplanned reoperation, American College of Surgeons,
Legacy Keywords
Resident participation, emergency general surgery, complications, pulmonary embolism, surgical site infections, unplanned reoperation, American College of Surgeons,
Sections
Article Source

PURLs Copyright

Inside the Article

Vitals

Major finding: Rates were significantly higher with resident participation than without for DVT (0.80% vs. 0.62%; P = .002) and PE (0.43% vs. 0.28%; P less than .001).

Data source: A secondary analysis of 141,010 emergency general surgery cases in the prospective ACS NSQIP database.

Disclosures: Dr. Kasotakis and his coauthors reported no conflicting interests.

Limited English proficiency patients and the hospitalist

Article Type
Changed
Tue, 12/13/2016 - 12:08
Display Headline
Limited English proficiency patients and the hospitalist

America! America! God shed His grace on thee

And crown Thy good with brotherhood

From sea to shining sea!

I fondly remember singing "America the Beautiful" with my classmates when I was a little girl. America has grown by leaps and bounds since my childhood – the pulse of the nation as well as its makeup. One of my fondest memories as a child was traveling to New York. We had a layover in Washington and the airport was filled with people of various skin tones speaking all sorts of languages I had never been exposed to before. It was very exciting! It was my first truly multicultural experience.

Funny, I ultimately relocated to the D.C. area, and my neighbors are literally from all over the world: India, Thailand, Jamaica, Africa, China – and it doesn’t stop there. Naturally, the patient population I serve also reflects this great diversity. As the country becomes more diverse each and every day, we, as practitioners, must be able to communicate effectively with our entire patient base, not just the ones who speak English fluently.

This is quite a challenge. Yes, most hospitals have a language line or an on-call interpreter to help out, but I believe we also need to take some responsibility for improving our ability to communicate as well. While I am not advocating trying to master a new language, or two or three, we can all learn a few basic terms of the foreign languages we encounter most.

Consider that language lines do malfunction. Family members are sometimes not present. And interpreters may not always be available at the drop of a hat. Technology, though, is ever burgeoning. It’s easy to download a smartphone app, such as Medical Spanish: Healthcare Phrasebook with Audio. Google Translate can be helpful for scores of languages, though I would use this site with caution when it comes to patient care.

There is a slew of reputable patient information written in different languages available on the Internet as well.

The Agency for Healthcare Research and Quality offers a guide tool: Improving Patient Safety Systems for Patients with Limited English Proficiency: A Guide for Hospitals. The guide notes that approximately 57 million people speak a language other than English at home and 25 million are defined as limited-English-proficient (LEP). LEP patients were noted to have longer lengths of stay in the hospital and were at greater risk for line infections, surgical infections, falls, and pressure ulcers. They are more likely to be readmitted, as well.

Although it is always best to have a qualified interpreter to help us care for LEP patients, there may be times when one is simply unavailable in an acceptable period of time. Friends and family members can help fill some of the gaps in those instances, but it never hurts for the clinician to know a few vital words as well, such as pain or shortness of breath.

America’s culture is ever evolving, and we must evolve with it. Being able to provide high-quality care to all of our patients is our goal. Standards are important, but sometimes thinking out of the box can be effective as well.

Dr. Hester is a hospitalist with Baltimore-Washington Medical Center who has a passion for empowering patients to partner in their health care. She is the creator of the Patient Whiz, a patient-engagement app for iOS. Reach her at [email protected].

Author and Disclosure Information

Sections
Author and Disclosure Information

Author and Disclosure Information

America! America! God shed His grace on thee

And crown Thy good with brotherhood

From sea to shining sea!

I fondly remember singing "America the Beautiful" with my classmates when I was a little girl. America has grown by leaps and bounds since my childhood – the pulse of the nation as well as its makeup. One of my fondest memories as a child was traveling to New York. We had a layover in Washington and the airport was filled with people of various skin tones speaking all sorts of languages I had never been exposed to before. It was very exciting! It was my first truly multicultural experience.

Funny, I ultimately relocated to the D.C. area, and my neighbors are literally from all over the world: India, Thailand, Jamaica, Africa, China – and it doesn’t stop there. Naturally, the patient population I serve also reflects this great diversity. As the country becomes more diverse each and every day, we, as practitioners, must be able to communicate effectively with our entire patient base, not just the ones who speak English fluently.

This is quite a challenge. Yes, most hospitals have a language line or an on-call interpreter to help out, but I believe we also need to take some responsibility for improving our ability to communicate as well. While I am not advocating trying to master a new language, or two or three, we can all learn a few basic terms of the foreign languages we encounter most.

Consider that language lines do malfunction. Family members are sometimes not present. And interpreters may not always be available at the drop of a hat. Technology, though, is ever burgeoning. It’s easy to download a smartphone app, such as Medical Spanish: Healthcare Phrasebook with Audio. Google Translate can be helpful for scores of languages, though I would use this site with caution when it comes to patient care.

There is a slew of reputable patient information written in different languages available on the Internet as well.

The Agency for Healthcare Research and Quality offers a guide tool: Improving Patient Safety Systems for Patients with Limited English Proficiency: A Guide for Hospitals. The guide notes that approximately 57 million people speak a language other than English at home and 25 million are defined as limited-English-proficient (LEP). LEP patients were noted to have longer lengths of stay in the hospital and were at greater risk for line infections, surgical infections, falls, and pressure ulcers. They are more likely to be readmitted, as well.

Although it is always best to have a qualified interpreter to help us care for LEP patients, there may be times when one is simply unavailable in an acceptable period of time. Friends and family members can help fill some of the gaps in those instances, but it never hurts for the clinician to know a few vital words as well, such as pain or shortness of breath.

America’s culture is ever evolving, and we must evolve with it. Being able to provide high-quality care to all of our patients is our goal. Standards are important, but sometimes thinking out of the box can be effective as well.

Dr. Hester is a hospitalist with Baltimore-Washington Medical Center who has a passion for empowering patients to partner in their health care. She is the creator of the Patient Whiz, a patient-engagement app for iOS. Reach her at [email protected].

America! America! God shed His grace on thee

And crown Thy good with brotherhood

From sea to shining sea!

I fondly remember singing "America the Beautiful" with my classmates when I was a little girl. America has grown by leaps and bounds since my childhood – the pulse of the nation as well as its makeup. One of my fondest memories as a child was traveling to New York. We had a layover in Washington and the airport was filled with people of various skin tones speaking all sorts of languages I had never been exposed to before. It was very exciting! It was my first truly multicultural experience.

Funny, I ultimately relocated to the D.C. area, and my neighbors are literally from all over the world: India, Thailand, Jamaica, Africa, China – and it doesn’t stop there. Naturally, the patient population I serve also reflects this great diversity. As the country becomes more diverse each and every day, we, as practitioners, must be able to communicate effectively with our entire patient base, not just the ones who speak English fluently.

This is quite a challenge. Yes, most hospitals have a language line or an on-call interpreter to help out, but I believe we also need to take some responsibility for improving our ability to communicate as well. While I am not advocating trying to master a new language, or two or three, we can all learn a few basic terms of the foreign languages we encounter most.

Consider that language lines do malfunction. Family members are sometimes not present. And interpreters may not always be available at the drop of a hat. Technology, though, is ever burgeoning. It’s easy to download a smartphone app, such as Medical Spanish: Healthcare Phrasebook with Audio. Google Translate can be helpful for scores of languages, though I would use this site with caution when it comes to patient care.

There is a slew of reputable patient information written in different languages available on the Internet as well.

The Agency for Healthcare Research and Quality offers a guide tool: Improving Patient Safety Systems for Patients with Limited English Proficiency: A Guide for Hospitals. The guide notes that approximately 57 million people speak a language other than English at home and 25 million are defined as limited-English-proficient (LEP). LEP patients were noted to have longer lengths of stay in the hospital and were at greater risk for line infections, surgical infections, falls, and pressure ulcers. They are more likely to be readmitted, as well.

Although it is always best to have a qualified interpreter to help us care for LEP patients, there may be times when one is simply unavailable in an acceptable period of time. Friends and family members can help fill some of the gaps in those instances, but it never hurts for the clinician to know a few vital words as well, such as pain or shortness of breath.

America’s culture is ever evolving, and we must evolve with it. Being able to provide high-quality care to all of our patients is our goal. Standards are important, but sometimes thinking out of the box can be effective as well.

Dr. Hester is a hospitalist with Baltimore-Washington Medical Center who has a passion for empowering patients to partner in their health care. She is the creator of the Patient Whiz, a patient-engagement app for iOS. Reach her at [email protected].

Article Type
Display Headline
Limited English proficiency patients and the hospitalist
Display Headline
Limited English proficiency patients and the hospitalist
Sections
Article Source

PURLs Copyright

Inside the Article

Cryolipolysis

Article Type
Changed
Fri, 06/11/2021 - 10:19
Display Headline
Cryolipolysis

Cryolipolysis has emerged as a popular noninvasive treatment option for reducing localized areas of fat. The technology was developed on the premise that cold temperatures can selectively damage subcutaneous fat while leaving the overlying skin unharmed, as demonstrated by popsicle panniculitis. In this process, when subcutaneous fat is cooled below body temperature but above freezing, the fat undergoes cell death followed by a local inflammatory response, a localized panniculitis, that gradually results in a reduction of fat in that area.

Dr. Dieter Manstein and Dr. R. Rox Anderson pioneered the concept of cryolipolysis in 2008. The technology was approved by the Food and Drug Administration in 2010 in the form of the Zeltiq device. The device has different-sized hand pieces with a vacuum connection that, after it is applied to the skin, cools the subcutaneous fat without damaging the top layers of skin. Each area is treated for 1 hour, and 20%-30% of the fat cells are expected to be reduced with a single treatment. Typical responses after treatment include numbness, but some patients may also experience bruising and discomfort, all of which typically last no longer than 2-3 weeks.

If discomfort occurs in my patients, I find they report it more often in the lower abdomen than the love handles. Paradoxical adipose hyperplasia was recently reported for the first time in a male patient in his 40s (in the lower abdomen) (JAMA Dermatol. 2014;150:317-9).

In my experience, there is no difference in efficacy or adverse events seen in patients of different ethnicities. One study found no difference in efficacy or adverse events of cryolipolysis in Chinese patients (Lasers Surg. Med. 2012;44:125-30), but no other study of cryolipolysis in ethnic patients has been published.

I was involved in the clinical trials for this device prior to FDA approval where one love handle was treated on a patient and the other side was used as a control. Based on this experience and my experience using the device in practice, it is not a replacement for abdominoplasty or liposuction, but it is a useful technology in the right candidate. The patients who seem to do the best are those who are 10-15 pounds from their goal weight, are not obese (body mass index less than 30 kg/m2), and have a discrete bulge (typically love handles or abdomen) that they can’t get rid of with good diet and exercise alone. Massage for a few minutes after treatment seems to increase efficacy (Lasers Surg. Med. 2014;46:20-6).

Some patients may require more than one treatment to achieve their desired results, but I recommend waiting at least 2-3 months before opting for additional treatment. Choosing the right candidates and providing patients with realistic expectations seem to be the most helpful in this process.

Dr. Wesley practices dermatology in Beverly Hills, Calif.

Author and Disclosure Information

Publications
Topics
Legacy Keywords
Cryolipolysis, reducing fat, panniculitis,
Sections
Author and Disclosure Information

Author and Disclosure Information

Cryolipolysis has emerged as a popular noninvasive treatment option for reducing localized areas of fat. The technology was developed on the premise that cold temperatures can selectively damage subcutaneous fat while leaving the overlying skin unharmed, as demonstrated by popsicle panniculitis. In this process, when subcutaneous fat is cooled below body temperature but above freezing, the fat undergoes cell death followed by a local inflammatory response, a localized panniculitis, that gradually results in a reduction of fat in that area.

Dr. Dieter Manstein and Dr. R. Rox Anderson pioneered the concept of cryolipolysis in 2008. The technology was approved by the Food and Drug Administration in 2010 in the form of the Zeltiq device. The device has different-sized hand pieces with a vacuum connection that, after it is applied to the skin, cools the subcutaneous fat without damaging the top layers of skin. Each area is treated for 1 hour, and 20%-30% of the fat cells are expected to be reduced with a single treatment. Typical responses after treatment include numbness, but some patients may also experience bruising and discomfort, all of which typically last no longer than 2-3 weeks.

If discomfort occurs in my patients, I find they report it more often in the lower abdomen than the love handles. Paradoxical adipose hyperplasia was recently reported for the first time in a male patient in his 40s (in the lower abdomen) (JAMA Dermatol. 2014;150:317-9).

In my experience, there is no difference in efficacy or adverse events seen in patients of different ethnicities. One study found no difference in efficacy or adverse events of cryolipolysis in Chinese patients (Lasers Surg. Med. 2012;44:125-30), but no other study of cryolipolysis in ethnic patients has been published.

I was involved in the clinical trials for this device prior to FDA approval where one love handle was treated on a patient and the other side was used as a control. Based on this experience and my experience using the device in practice, it is not a replacement for abdominoplasty or liposuction, but it is a useful technology in the right candidate. The patients who seem to do the best are those who are 10-15 pounds from their goal weight, are not obese (body mass index less than 30 kg/m2), and have a discrete bulge (typically love handles or abdomen) that they can’t get rid of with good diet and exercise alone. Massage for a few minutes after treatment seems to increase efficacy (Lasers Surg. Med. 2014;46:20-6).

Some patients may require more than one treatment to achieve their desired results, but I recommend waiting at least 2-3 months before opting for additional treatment. Choosing the right candidates and providing patients with realistic expectations seem to be the most helpful in this process.

Dr. Wesley practices dermatology in Beverly Hills, Calif.

Cryolipolysis has emerged as a popular noninvasive treatment option for reducing localized areas of fat. The technology was developed on the premise that cold temperatures can selectively damage subcutaneous fat while leaving the overlying skin unharmed, as demonstrated by popsicle panniculitis. In this process, when subcutaneous fat is cooled below body temperature but above freezing, the fat undergoes cell death followed by a local inflammatory response, a localized panniculitis, that gradually results in a reduction of fat in that area.

Dr. Dieter Manstein and Dr. R. Rox Anderson pioneered the concept of cryolipolysis in 2008. The technology was approved by the Food and Drug Administration in 2010 in the form of the Zeltiq device. The device has different-sized hand pieces with a vacuum connection that, after it is applied to the skin, cools the subcutaneous fat without damaging the top layers of skin. Each area is treated for 1 hour, and 20%-30% of the fat cells are expected to be reduced with a single treatment. Typical responses after treatment include numbness, but some patients may also experience bruising and discomfort, all of which typically last no longer than 2-3 weeks.

If discomfort occurs in my patients, I find they report it more often in the lower abdomen than the love handles. Paradoxical adipose hyperplasia was recently reported for the first time in a male patient in his 40s (in the lower abdomen) (JAMA Dermatol. 2014;150:317-9).

In my experience, there is no difference in efficacy or adverse events seen in patients of different ethnicities. One study found no difference in efficacy or adverse events of cryolipolysis in Chinese patients (Lasers Surg. Med. 2012;44:125-30), but no other study of cryolipolysis in ethnic patients has been published.

I was involved in the clinical trials for this device prior to FDA approval where one love handle was treated on a patient and the other side was used as a control. Based on this experience and my experience using the device in practice, it is not a replacement for abdominoplasty or liposuction, but it is a useful technology in the right candidate. The patients who seem to do the best are those who are 10-15 pounds from their goal weight, are not obese (body mass index less than 30 kg/m2), and have a discrete bulge (typically love handles or abdomen) that they can’t get rid of with good diet and exercise alone. Massage for a few minutes after treatment seems to increase efficacy (Lasers Surg. Med. 2014;46:20-6).

Some patients may require more than one treatment to achieve their desired results, but I recommend waiting at least 2-3 months before opting for additional treatment. Choosing the right candidates and providing patients with realistic expectations seem to be the most helpful in this process.

Dr. Wesley practices dermatology in Beverly Hills, Calif.

Publications
Publications
Topics
Article Type
Display Headline
Cryolipolysis
Display Headline
Cryolipolysis
Legacy Keywords
Cryolipolysis, reducing fat, panniculitis,
Legacy Keywords
Cryolipolysis, reducing fat, panniculitis,
Sections
Article Source

PURLs Copyright

Inside the Article

Paroxetine mesylate 7.5 mg found to be a safe alternative to hormone therapy for menopausal women with hot flashes

Article Type
Changed
Tue, 08/28/2018 - 11:04
Display Headline
Paroxetine mesylate 7.5 mg found to be a safe alternative to hormone therapy for menopausal women with hot flashes

The US Food and Drug Administration (FDA) recently approved paroxetine mesylate 7.5 mg (Brisdelle) for the treatment of moderate to severe menopausal vasomotor symptoms (VMS). Paroxetine, formerly known as low-dose mesylate salt of paroxetine (LDMP), is a nonhormonal agent, which makes it an alternative hot flash therapy for menopausal women who cannot or do not want to use hormones. Paroxetine mesylate (Pexeva, Brisdelle) and paroxetine hydrochloride (Paxil, and generics) are two salts of the same active compound (paroxetine). They may have somewhat different metabolism.

The efficacy and safety of paroxetine mesylate, a selective serotonin-reuptake inhibitor (SSRI), were evaluated individually in three Phase 2 or 3 multicenter, double-blind, randomized, placebo-controlled trials, published by James Simon, MD, from George Washington University School of Medicine, and colleagues,1 and Joffe and colleagues.2 Most treatment-emergent adverse events (TEAEs) in the individual studies were mild or moderate in severity, with minimal acute discontinuation symptoms reported on treatment cessation.

In a study3 presented April 29, at the 2014 Annual Clinical Meeting of The American College of Obstetricians and Gynecologists (ACOG) in Chicago, Illinois, Simon and colleagues further reported on the overall tolerability and safety profile of paroxetine mesylate 7.5 mg using pooled data from the three randomized trials. In their post-hoc analyses, they specifically examined the emergence of adverse events linked to the use of SSRIs when prescribed for psychiatric disorders at therapeutically higher doses than 7.5 mg. The adverse events focused on included weight gain, decreased libido, and sleep disturbance, as well as suicidality, abnormal bleeding, and bone fracture.

Study details. A total of 1,276 postmenopausal women (approximately 70% white) aged 40 years or older (median age, 54 years) with moderate to severe VMS (7−8 hot flashes/day; 50−60 hot flashes/wk) received either paroxetine mesylate or placebo at bedtime for 8 (Phase 2), 12 (Phase 3), or 24 (Phase 3) weeks. The study was sponsored by Noven Therapeutics, LLC.

Treatment-emergent adverse events and discontinuation
About half (50.4%) of the 635 women in the paroxetine group and 47.0% of the 641 women in the placebo group reported at least one TEAE. Most commonly reported TEAEs in the paroxetine group (reported in ≥2% of patients and with a twofold or higher frequency than in the placebo group) were nausea, fatigue, and dizziness.

TEAEs that were determined to be related to the study drug were reported in 19.5% in the paroxetine group and in 17.6% in the placebo group. These most frequent TEAEs were fatigue, nausea, dizziness, and diarrhea.

Severe AEs were reported in 3.9% and 3.6% of women in the paroxetine and placebo groups, respectively, although the investigator determined that less than 1% were related to paroxetine treatment.

TEAEs that led to discontinuation occurred in 4.7% of paroxetine-treated women and in 3.7% of placebo-treated women, although the incidence of study drug interruptions from TEAEs was similar (0.9%) between treatments. The most frequent adverse reactions leading to discontinuation in the paroxetine arm were abdominal pain (0.3%), attention disturbances (0.3%), headache (0.3%), and suicidal ideation (0.3%).

Of the most common AEs, nausea occurred mainly within the first 4 weeks of treatment; fatigue occurred primarily within the first week of treatment and decreased in frequency with continued therapy. Incidences and types of AEs that began after 12 weeks were similar to those that began during the first 12 weeks of treatment.

AEs related to SSRIs not found to be problematic
No differences were found between groups with regard to TEAEs related to weight, libido, or sleep. No clinically meaningful changes in laboratory values, vital signs, or ECGs were observed with either group. No clinically important findings on abnormal bleeding, bone fracture, or suicidality were evident in the paroxetine arm.

In the Phase 3 studies:

  • One suicide attempt was reported in the paroxetine group in the 24-week study, but was determined by investigators to be unrelated to treatment

  • Incidence rates of gastrointestinal and other bleeding events were similar between groups

  • Five bone fractures were reported: One in the paroxetine group and four among three participants in the placebo group.

One death occurred in the 12-week Phase 3 study due to acute respiratory failure with evidence of hypertension-mediated pulmonary edema and hypertensive cardiovascular disease. The investigator did not consider the death to be related to the study drug.

Study conclusion
The authors concluded that paroxetine 7.5 mg had favorable tolerability in menopausal women with moderate to severe VMS.

“Paroxetine 7.5 mg offers a nonhormonal treatment option for women who seek treatment for moderate to severe hot flashes associated with menopause,” said Dr. Simon.

 

 

Tell us what you think! Send your Letter to the Editor: [email protected]

References

1. Simon JA, et al. Low dose paroxetine 7.5 mg for menopausal vasomotor symptoms: two randomized controlled trials. Menopause. 2013;20(10):1027–1035.

2. Joffe H et al. Low-dose mesylate salt of paroxetine (LDMP) in treatment of vasomotor symptoms (VMS) in menopause. Presented at: 2012 Annual Clinical Meeting of The American College of Obstetricians and Gynecologists; May 7, 2012; San Diego, CA. Poster 43.

3. Simon JA, Portman DJ, Kazempour K, Mekonnen H, Bhaskar S, Lippman J. Safety profile of paroxetine 7.5 mg in women with moderate to severe vasomotor symptoms. Poster presented at: 2014 Annual Clinical Meeting of The American College of Obstetricians and Gynecologists (ACOG); April 26–30, 2014; Chicago, IL.

Author and Disclosure Information

Deborah Reale, Managing Editor

Issue
OBG Management - 26(6)
Publications
Topics
Sections
Author and Disclosure Information

Deborah Reale, Managing Editor

Author and Disclosure Information

Deborah Reale, Managing Editor

Related Articles

The US Food and Drug Administration (FDA) recently approved paroxetine mesylate 7.5 mg (Brisdelle) for the treatment of moderate to severe menopausal vasomotor symptoms (VMS). Paroxetine, formerly known as low-dose mesylate salt of paroxetine (LDMP), is a nonhormonal agent, which makes it an alternative hot flash therapy for menopausal women who cannot or do not want to use hormones. Paroxetine mesylate (Pexeva, Brisdelle) and paroxetine hydrochloride (Paxil, and generics) are two salts of the same active compound (paroxetine). They may have somewhat different metabolism.

The efficacy and safety of paroxetine mesylate, a selective serotonin-reuptake inhibitor (SSRI), were evaluated individually in three Phase 2 or 3 multicenter, double-blind, randomized, placebo-controlled trials, published by James Simon, MD, from George Washington University School of Medicine, and colleagues,1 and Joffe and colleagues.2 Most treatment-emergent adverse events (TEAEs) in the individual studies were mild or moderate in severity, with minimal acute discontinuation symptoms reported on treatment cessation.

In a study3 presented April 29, at the 2014 Annual Clinical Meeting of The American College of Obstetricians and Gynecologists (ACOG) in Chicago, Illinois, Simon and colleagues further reported on the overall tolerability and safety profile of paroxetine mesylate 7.5 mg using pooled data from the three randomized trials. In their post-hoc analyses, they specifically examined the emergence of adverse events linked to the use of SSRIs when prescribed for psychiatric disorders at therapeutically higher doses than 7.5 mg. The adverse events focused on included weight gain, decreased libido, and sleep disturbance, as well as suicidality, abnormal bleeding, and bone fracture.

Study details. A total of 1,276 postmenopausal women (approximately 70% white) aged 40 years or older (median age, 54 years) with moderate to severe VMS (7−8 hot flashes/day; 50−60 hot flashes/wk) received either paroxetine mesylate or placebo at bedtime for 8 (Phase 2), 12 (Phase 3), or 24 (Phase 3) weeks. The study was sponsored by Noven Therapeutics, LLC.

Treatment-emergent adverse events and discontinuation
About half (50.4%) of the 635 women in the paroxetine group and 47.0% of the 641 women in the placebo group reported at least one TEAE. Most commonly reported TEAEs in the paroxetine group (reported in ≥2% of patients and with a twofold or higher frequency than in the placebo group) were nausea, fatigue, and dizziness.

TEAEs that were determined to be related to the study drug were reported in 19.5% in the paroxetine group and in 17.6% in the placebo group. These most frequent TEAEs were fatigue, nausea, dizziness, and diarrhea.

Severe AEs were reported in 3.9% and 3.6% of women in the paroxetine and placebo groups, respectively, although the investigator determined that less than 1% were related to paroxetine treatment.

TEAEs that led to discontinuation occurred in 4.7% of paroxetine-treated women and in 3.7% of placebo-treated women, although the incidence of study drug interruptions from TEAEs was similar (0.9%) between treatments. The most frequent adverse reactions leading to discontinuation in the paroxetine arm were abdominal pain (0.3%), attention disturbances (0.3%), headache (0.3%), and suicidal ideation (0.3%).

Of the most common AEs, nausea occurred mainly within the first 4 weeks of treatment; fatigue occurred primarily within the first week of treatment and decreased in frequency with continued therapy. Incidences and types of AEs that began after 12 weeks were similar to those that began during the first 12 weeks of treatment.

AEs related to SSRIs not found to be problematic
No differences were found between groups with regard to TEAEs related to weight, libido, or sleep. No clinically meaningful changes in laboratory values, vital signs, or ECGs were observed with either group. No clinically important findings on abnormal bleeding, bone fracture, or suicidality were evident in the paroxetine arm.

In the Phase 3 studies:

  • One suicide attempt was reported in the paroxetine group in the 24-week study, but was determined by investigators to be unrelated to treatment

  • Incidence rates of gastrointestinal and other bleeding events were similar between groups

  • Five bone fractures were reported: One in the paroxetine group and four among three participants in the placebo group.

One death occurred in the 12-week Phase 3 study due to acute respiratory failure with evidence of hypertension-mediated pulmonary edema and hypertensive cardiovascular disease. The investigator did not consider the death to be related to the study drug.

Study conclusion
The authors concluded that paroxetine 7.5 mg had favorable tolerability in menopausal women with moderate to severe VMS.

“Paroxetine 7.5 mg offers a nonhormonal treatment option for women who seek treatment for moderate to severe hot flashes associated with menopause,” said Dr. Simon.

 

 

Tell us what you think! Send your Letter to the Editor: [email protected]

The US Food and Drug Administration (FDA) recently approved paroxetine mesylate 7.5 mg (Brisdelle) for the treatment of moderate to severe menopausal vasomotor symptoms (VMS). Paroxetine, formerly known as low-dose mesylate salt of paroxetine (LDMP), is a nonhormonal agent, which makes it an alternative hot flash therapy for menopausal women who cannot or do not want to use hormones. Paroxetine mesylate (Pexeva, Brisdelle) and paroxetine hydrochloride (Paxil, and generics) are two salts of the same active compound (paroxetine). They may have somewhat different metabolism.

The efficacy and safety of paroxetine mesylate, a selective serotonin-reuptake inhibitor (SSRI), were evaluated individually in three Phase 2 or 3 multicenter, double-blind, randomized, placebo-controlled trials, published by James Simon, MD, from George Washington University School of Medicine, and colleagues,1 and Joffe and colleagues.2 Most treatment-emergent adverse events (TEAEs) in the individual studies were mild or moderate in severity, with minimal acute discontinuation symptoms reported on treatment cessation.

In a study3 presented April 29, at the 2014 Annual Clinical Meeting of The American College of Obstetricians and Gynecologists (ACOG) in Chicago, Illinois, Simon and colleagues further reported on the overall tolerability and safety profile of paroxetine mesylate 7.5 mg using pooled data from the three randomized trials. In their post-hoc analyses, they specifically examined the emergence of adverse events linked to the use of SSRIs when prescribed for psychiatric disorders at therapeutically higher doses than 7.5 mg. The adverse events focused on included weight gain, decreased libido, and sleep disturbance, as well as suicidality, abnormal bleeding, and bone fracture.

Study details. A total of 1,276 postmenopausal women (approximately 70% white) aged 40 years or older (median age, 54 years) with moderate to severe VMS (7−8 hot flashes/day; 50−60 hot flashes/wk) received either paroxetine mesylate or placebo at bedtime for 8 (Phase 2), 12 (Phase 3), or 24 (Phase 3) weeks. The study was sponsored by Noven Therapeutics, LLC.

Treatment-emergent adverse events and discontinuation
About half (50.4%) of the 635 women in the paroxetine group and 47.0% of the 641 women in the placebo group reported at least one TEAE. Most commonly reported TEAEs in the paroxetine group (reported in ≥2% of patients and with a twofold or higher frequency than in the placebo group) were nausea, fatigue, and dizziness.

TEAEs that were determined to be related to the study drug were reported in 19.5% in the paroxetine group and in 17.6% in the placebo group. These most frequent TEAEs were fatigue, nausea, dizziness, and diarrhea.

Severe AEs were reported in 3.9% and 3.6% of women in the paroxetine and placebo groups, respectively, although the investigator determined that less than 1% were related to paroxetine treatment.

TEAEs that led to discontinuation occurred in 4.7% of paroxetine-treated women and in 3.7% of placebo-treated women, although the incidence of study drug interruptions from TEAEs was similar (0.9%) between treatments. The most frequent adverse reactions leading to discontinuation in the paroxetine arm were abdominal pain (0.3%), attention disturbances (0.3%), headache (0.3%), and suicidal ideation (0.3%).

Of the most common AEs, nausea occurred mainly within the first 4 weeks of treatment; fatigue occurred primarily within the first week of treatment and decreased in frequency with continued therapy. Incidences and types of AEs that began after 12 weeks were similar to those that began during the first 12 weeks of treatment.

AEs related to SSRIs not found to be problematic
No differences were found between groups with regard to TEAEs related to weight, libido, or sleep. No clinically meaningful changes in laboratory values, vital signs, or ECGs were observed with either group. No clinically important findings on abnormal bleeding, bone fracture, or suicidality were evident in the paroxetine arm.

In the Phase 3 studies:

  • One suicide attempt was reported in the paroxetine group in the 24-week study, but was determined by investigators to be unrelated to treatment

  • Incidence rates of gastrointestinal and other bleeding events were similar between groups

  • Five bone fractures were reported: One in the paroxetine group and four among three participants in the placebo group.

One death occurred in the 12-week Phase 3 study due to acute respiratory failure with evidence of hypertension-mediated pulmonary edema and hypertensive cardiovascular disease. The investigator did not consider the death to be related to the study drug.

Study conclusion
The authors concluded that paroxetine 7.5 mg had favorable tolerability in menopausal women with moderate to severe VMS.

“Paroxetine 7.5 mg offers a nonhormonal treatment option for women who seek treatment for moderate to severe hot flashes associated with menopause,” said Dr. Simon.

 

 

Tell us what you think! Send your Letter to the Editor: [email protected]

References

1. Simon JA, et al. Low dose paroxetine 7.5 mg for menopausal vasomotor symptoms: two randomized controlled trials. Menopause. 2013;20(10):1027–1035.

2. Joffe H et al. Low-dose mesylate salt of paroxetine (LDMP) in treatment of vasomotor symptoms (VMS) in menopause. Presented at: 2012 Annual Clinical Meeting of The American College of Obstetricians and Gynecologists; May 7, 2012; San Diego, CA. Poster 43.

3. Simon JA, Portman DJ, Kazempour K, Mekonnen H, Bhaskar S, Lippman J. Safety profile of paroxetine 7.5 mg in women with moderate to severe vasomotor symptoms. Poster presented at: 2014 Annual Clinical Meeting of The American College of Obstetricians and Gynecologists (ACOG); April 26–30, 2014; Chicago, IL.

References

1. Simon JA, et al. Low dose paroxetine 7.5 mg for menopausal vasomotor symptoms: two randomized controlled trials. Menopause. 2013;20(10):1027–1035.

2. Joffe H et al. Low-dose mesylate salt of paroxetine (LDMP) in treatment of vasomotor symptoms (VMS) in menopause. Presented at: 2012 Annual Clinical Meeting of The American College of Obstetricians and Gynecologists; May 7, 2012; San Diego, CA. Poster 43.

3. Simon JA, Portman DJ, Kazempour K, Mekonnen H, Bhaskar S, Lippman J. Safety profile of paroxetine 7.5 mg in women with moderate to severe vasomotor symptoms. Poster presented at: 2014 Annual Clinical Meeting of The American College of Obstetricians and Gynecologists (ACOG); April 26–30, 2014; Chicago, IL.

Issue
OBG Management - 26(6)
Issue
OBG Management - 26(6)
Publications
Publications
Topics
Article Type
Display Headline
Paroxetine mesylate 7.5 mg found to be a safe alternative to hormone therapy for menopausal women with hot flashes
Display Headline
Paroxetine mesylate 7.5 mg found to be a safe alternative to hormone therapy for menopausal women with hot flashes
Sections
Article Source

PURLs Copyright

Inside the Article

Imatinib appears safe, effective for the long haul

Article Type
Changed
Fri, 01/04/2019 - 09:38
Display Headline
Imatinib appears safe, effective for the long haul

CHICAGO – After a decade on therapy with imatinib, a majority of patients with chronic myeloid leukemia will experience an adverse drug reaction, but most reactions are mild and manageable, according to results from a study presented at the annual meeting of the American Society of Clinical Oncology.

Of 1,375 patients with CML who received imatinib (Gleevec) monotherapy at some point, 1,018 (74%) had nonhematologic toxicities sometime during therapy, but only 199 (14%) had grade 3 or 4 toxicities, and there were no deaths attributed to imatinib, reported Dr. Rüdiger Hehlmann of the University of Heidelberg, Germany, and his colleagues.

Adverse drug reactions were manageable even when imatinib was combined with interferon-alfa (IFN-alfa), the investigators from the German CML Study Group reported in a poster at the meeting.

"After 10 years, imatinib continues to be an excellent choice for most patients with CML," they wrote.

In the 13 years that have elapsed since imatinib was approved in the United States as the first-in-class tyrosine kinase inhibitor, second-generation TKIs and other targeted agents have emerged, drawing attention to the safety of the older regimen.

The investigators evaluated long-term follow-up data and analyzed adverse drug reaction data for 1,501 patients treated with imatinib monotherapy in doses of 400 or 800 mg/day, as well as imatinib 400 mg in combination with IFN-alfa.

At the most recent evaluation, in November 2013, 164 patients had died, 1,003 were still on imatinib, 275 had been switched to a second-generation TKI, and 106 underwent bone marrow transplant (some patients received more than one therapy, accounting for the difference in total numbers).

The median follow-up time was 6.5 years, with some patients on study for as long as 11.5 years.

The probability of 10-year survival was 84%, and of 10-year progression-free survival was 81%.

An analysis of survival by molecular response rates showed an overall survival rate of 89% for those who achieved a major molecular response (MR, defined as a BCR-ABL RNA level of 0.1% or less), and 74% for those who achieved MR 4.5 (a 4.5 log10reduction or greater in BCR-ABL transcripts).

The 8-year probabilities for all grades of adverse events among the patients who received imatinib monotherapy were 41% for edema or fluid overload, 38% for gastrointestinal toxicities, 25% for myalgia/arthralgia, 20% for rash, 17% for musculoskeletal events, 17% for fatigue, 11% for neurological toxicities, and 10% for flulike symptoms.

Five patients had grade 2 or 3 peripheral arterial occlusive disease, but it was not clear whether these events were associated with imatinib.

For most patients the first adverse drug reaction occurred within 3 years of starting on imatinib, with the frequency of reactions decreasing thereafter.

Dr. Hehlmann disclosed receiving research support from Novartis, marketer of imatinib.

Meeting/Event
Author and Disclosure Information

Publications
Topics
Legacy Keywords
imatinib, chronic myeloid leukemia, Gleevec, Dr. Rüdiger Hehlmann, interferon-alfa, IFN-alfa,
Sections
Author and Disclosure Information

Author and Disclosure Information

Meeting/Event
Meeting/Event

CHICAGO – After a decade on therapy with imatinib, a majority of patients with chronic myeloid leukemia will experience an adverse drug reaction, but most reactions are mild and manageable, according to results from a study presented at the annual meeting of the American Society of Clinical Oncology.

Of 1,375 patients with CML who received imatinib (Gleevec) monotherapy at some point, 1,018 (74%) had nonhematologic toxicities sometime during therapy, but only 199 (14%) had grade 3 or 4 toxicities, and there were no deaths attributed to imatinib, reported Dr. Rüdiger Hehlmann of the University of Heidelberg, Germany, and his colleagues.

Adverse drug reactions were manageable even when imatinib was combined with interferon-alfa (IFN-alfa), the investigators from the German CML Study Group reported in a poster at the meeting.

"After 10 years, imatinib continues to be an excellent choice for most patients with CML," they wrote.

In the 13 years that have elapsed since imatinib was approved in the United States as the first-in-class tyrosine kinase inhibitor, second-generation TKIs and other targeted agents have emerged, drawing attention to the safety of the older regimen.

The investigators evaluated long-term follow-up data and analyzed adverse drug reaction data for 1,501 patients treated with imatinib monotherapy in doses of 400 or 800 mg/day, as well as imatinib 400 mg in combination with IFN-alfa.

At the most recent evaluation, in November 2013, 164 patients had died, 1,003 were still on imatinib, 275 had been switched to a second-generation TKI, and 106 underwent bone marrow transplant (some patients received more than one therapy, accounting for the difference in total numbers).

The median follow-up time was 6.5 years, with some patients on study for as long as 11.5 years.

The probability of 10-year survival was 84%, and of 10-year progression-free survival was 81%.

An analysis of survival by molecular response rates showed an overall survival rate of 89% for those who achieved a major molecular response (MR, defined as a BCR-ABL RNA level of 0.1% or less), and 74% for those who achieved MR 4.5 (a 4.5 log10reduction or greater in BCR-ABL transcripts).

The 8-year probabilities for all grades of adverse events among the patients who received imatinib monotherapy were 41% for edema or fluid overload, 38% for gastrointestinal toxicities, 25% for myalgia/arthralgia, 20% for rash, 17% for musculoskeletal events, 17% for fatigue, 11% for neurological toxicities, and 10% for flulike symptoms.

Five patients had grade 2 or 3 peripheral arterial occlusive disease, but it was not clear whether these events were associated with imatinib.

For most patients the first adverse drug reaction occurred within 3 years of starting on imatinib, with the frequency of reactions decreasing thereafter.

Dr. Hehlmann disclosed receiving research support from Novartis, marketer of imatinib.

CHICAGO – After a decade on therapy with imatinib, a majority of patients with chronic myeloid leukemia will experience an adverse drug reaction, but most reactions are mild and manageable, according to results from a study presented at the annual meeting of the American Society of Clinical Oncology.

Of 1,375 patients with CML who received imatinib (Gleevec) monotherapy at some point, 1,018 (74%) had nonhematologic toxicities sometime during therapy, but only 199 (14%) had grade 3 or 4 toxicities, and there were no deaths attributed to imatinib, reported Dr. Rüdiger Hehlmann of the University of Heidelberg, Germany, and his colleagues.

Adverse drug reactions were manageable even when imatinib was combined with interferon-alfa (IFN-alfa), the investigators from the German CML Study Group reported in a poster at the meeting.

"After 10 years, imatinib continues to be an excellent choice for most patients with CML," they wrote.

In the 13 years that have elapsed since imatinib was approved in the United States as the first-in-class tyrosine kinase inhibitor, second-generation TKIs and other targeted agents have emerged, drawing attention to the safety of the older regimen.

The investigators evaluated long-term follow-up data and analyzed adverse drug reaction data for 1,501 patients treated with imatinib monotherapy in doses of 400 or 800 mg/day, as well as imatinib 400 mg in combination with IFN-alfa.

At the most recent evaluation, in November 2013, 164 patients had died, 1,003 were still on imatinib, 275 had been switched to a second-generation TKI, and 106 underwent bone marrow transplant (some patients received more than one therapy, accounting for the difference in total numbers).

The median follow-up time was 6.5 years, with some patients on study for as long as 11.5 years.

The probability of 10-year survival was 84%, and of 10-year progression-free survival was 81%.

An analysis of survival by molecular response rates showed an overall survival rate of 89% for those who achieved a major molecular response (MR, defined as a BCR-ABL RNA level of 0.1% or less), and 74% for those who achieved MR 4.5 (a 4.5 log10reduction or greater in BCR-ABL transcripts).

The 8-year probabilities for all grades of adverse events among the patients who received imatinib monotherapy were 41% for edema or fluid overload, 38% for gastrointestinal toxicities, 25% for myalgia/arthralgia, 20% for rash, 17% for musculoskeletal events, 17% for fatigue, 11% for neurological toxicities, and 10% for flulike symptoms.

Five patients had grade 2 or 3 peripheral arterial occlusive disease, but it was not clear whether these events were associated with imatinib.

For most patients the first adverse drug reaction occurred within 3 years of starting on imatinib, with the frequency of reactions decreasing thereafter.

Dr. Hehlmann disclosed receiving research support from Novartis, marketer of imatinib.

Publications
Publications
Topics
Article Type
Display Headline
Imatinib appears safe, effective for the long haul
Display Headline
Imatinib appears safe, effective for the long haul
Legacy Keywords
imatinib, chronic myeloid leukemia, Gleevec, Dr. Rüdiger Hehlmann, interferon-alfa, IFN-alfa,
Legacy Keywords
imatinib, chronic myeloid leukemia, Gleevec, Dr. Rüdiger Hehlmann, interferon-alfa, IFN-alfa,
Sections
Article Source

AT THE ASCO ANNUAL MEETING 2014

PURLs Copyright

Inside the Article

Vitals

Key clinical finding: Imatinib is safe and effective for treating patients with chronic myeloid leukemia over the course of a decade.

Major finding: Of 1,375 patients with CML who received imatinib (Gleevec) monotherapy, 74% had nonhematologic toxicities sometime during therapy, but only 199 (14%) had grade 3 or 4 toxicities.

Data source: Review of prospectively collected 10-year follow-up data from a phase II trial of imatinib in 1,501 patients with CML.

Disclosures: Dr. Hehlmann disclosed receiving research support from Novartis, marketer of imatinib.

Screen for Barrett’s in all with central obesity?

Article Type
Changed
Wed, 05/26/2021 - 13:59
Display Headline
Screen for Barrett’s in all with central obesity?

CHICAGO – The prevalence of erosive esophagitis and Barrett’s esophagus is comparable in individuals regardless of whether they have gastroesophageal reflux symptoms, according to a population-based study.

"These results directly challenge the established GERD-based Barrett’s esophagus screening paradigm and provide strong rationale for using central obesity in Caucasian males with or without symptomatic GERD as criteria for Barrett’s esophagus screening," Dr. Nicholas R. Crews said at the annual Digestive Disease Week.

"In this study, waist-hip ratio was our surrogate marker for central obesity. It’s easily obtainable and usable in clinical practice," noted Dr. Crews of the Mayo Clinic in Rochester, Minn.

Dr. Nicholas R. Crews

Barrett’s esophagus is the precursor lesion and principal risk factor for esophageal adenocarcinoma, a malignancy whose incidence in the United States and other developed nations is increasing at an alarming rate. Improved methods of screening for esophageal adenocarcinoma are sorely needed, he added.

Dr. Crews presented a study in which a representative sample of Olmsted County, Minn., residents over age 50 with no history of endoscopy were randomized to screening for Barrett’s esophagus by one of three methods: sedated endoscopy in the GI suite, unsedated transnasal endoscopy in the clinic, or unsedated transnasal endoscopy in a Mayo mobile research van.

Participants’ mean age was 70 years, 46% were men, 206 of the 209 were white, and only one-third of subjects had GERD symptoms.

The prevalence of esophagitis grades A-C proved to be 32% in the symptomatic GERD group and similar at 29% in those without GERD symptoms. Similarly, Barrett’s esophagus was identified in 8.7% of the symptomatic GERD group and 7.9% of subjects without GERD symptoms. Dysplasia was present in 1.4% of each group. The mean length of the esophageal segment with Barrett’s esophagus was 2.4 cm in patients with GERD symptoms and not significantly different in those who were asymptomatic.

Three risk factors proved significant as predictors of esophageal injury as defined by esophagitis or Barrett’s esophagus: male sex, central obesity as defined by a waist-hip ratio greater than 0.9, and consumption of more than two alcoholic drinks per day. Age, smoking status, and body mass index were not predictive.

The mean waist-to-hip ratio was 0.89 in screened subjects with no esophagitis or Barrett’s esophagus, 0.91 in those with positive endoscopic findings and symptomatic gastroesophageal reflux, and 0.95 in those with positive findings who were asymptomatic.

Audience members expressed skepticism about the notion of routinely screening for Barrett’s esophagus in individuals with central obesity in an era of an unprecedented obesity epidemic.

For example, Dr. Joel E. Richter, who described himself as "an anti-Barrett’s person," commented that he believes gastroenterologists are already overdiagnosing and overtreating the condition, needlessly alarming many patients.

In women, particularly, it’s increasingly clear that Barrett’s esophagus only rarely develops into esophageal adenocarcinoma, he said.

"Others have said that women with Barrett’s esophagus are as likely to get esophageal cancer as men are to get breast cancer," commented Dr. Richter, professor of internal medicine and director of the center for swallowing disorders at the University of South Florida, Tampa.

Another audience member told Dr. Crews, "I totally agree with you that we miss most people with Barrett’s by our current screening process. The problem is, it’s unclear whether it’s important or not to find them. To extrapolate from your study and say that anyone with central obesity ought to be screened for [Barrett’s esophagus] is a little strong, I think."

"It’s very controversial," Dr. Crews agreed. "It’s something we continue to struggle with."

He reported having no relevant financial conflicts.

[email protected]

Meeting/Event
Author and Disclosure Information

Publications
Topics
Legacy Keywords
GERD-based Barrett’s esophagus, Barrett’s esophagus screening, GERD, Dr. Nicholas R. Crews, esophageal adenocarcinoma,
Sections
Author and Disclosure Information

Author and Disclosure Information

Meeting/Event
Meeting/Event

CHICAGO – The prevalence of erosive esophagitis and Barrett’s esophagus is comparable in individuals regardless of whether they have gastroesophageal reflux symptoms, according to a population-based study.

"These results directly challenge the established GERD-based Barrett’s esophagus screening paradigm and provide strong rationale for using central obesity in Caucasian males with or without symptomatic GERD as criteria for Barrett’s esophagus screening," Dr. Nicholas R. Crews said at the annual Digestive Disease Week.

"In this study, waist-hip ratio was our surrogate marker for central obesity. It’s easily obtainable and usable in clinical practice," noted Dr. Crews of the Mayo Clinic in Rochester, Minn.

Dr. Nicholas R. Crews

Barrett’s esophagus is the precursor lesion and principal risk factor for esophageal adenocarcinoma, a malignancy whose incidence in the United States and other developed nations is increasing at an alarming rate. Improved methods of screening for esophageal adenocarcinoma are sorely needed, he added.

Dr. Crews presented a study in which a representative sample of Olmsted County, Minn., residents over age 50 with no history of endoscopy were randomized to screening for Barrett’s esophagus by one of three methods: sedated endoscopy in the GI suite, unsedated transnasal endoscopy in the clinic, or unsedated transnasal endoscopy in a Mayo mobile research van.

Participants’ mean age was 70 years, 46% were men, 206 of the 209 were white, and only one-third of subjects had GERD symptoms.

The prevalence of esophagitis grades A-C proved to be 32% in the symptomatic GERD group and similar at 29% in those without GERD symptoms. Similarly, Barrett’s esophagus was identified in 8.7% of the symptomatic GERD group and 7.9% of subjects without GERD symptoms. Dysplasia was present in 1.4% of each group. The mean length of the esophageal segment with Barrett’s esophagus was 2.4 cm in patients with GERD symptoms and not significantly different in those who were asymptomatic.

Three risk factors proved significant as predictors of esophageal injury as defined by esophagitis or Barrett’s esophagus: male sex, central obesity as defined by a waist-hip ratio greater than 0.9, and consumption of more than two alcoholic drinks per day. Age, smoking status, and body mass index were not predictive.

The mean waist-to-hip ratio was 0.89 in screened subjects with no esophagitis or Barrett’s esophagus, 0.91 in those with positive endoscopic findings and symptomatic gastroesophageal reflux, and 0.95 in those with positive findings who were asymptomatic.

Audience members expressed skepticism about the notion of routinely screening for Barrett’s esophagus in individuals with central obesity in an era of an unprecedented obesity epidemic.

For example, Dr. Joel E. Richter, who described himself as "an anti-Barrett’s person," commented that he believes gastroenterologists are already overdiagnosing and overtreating the condition, needlessly alarming many patients.

In women, particularly, it’s increasingly clear that Barrett’s esophagus only rarely develops into esophageal adenocarcinoma, he said.

"Others have said that women with Barrett’s esophagus are as likely to get esophageal cancer as men are to get breast cancer," commented Dr. Richter, professor of internal medicine and director of the center for swallowing disorders at the University of South Florida, Tampa.

Another audience member told Dr. Crews, "I totally agree with you that we miss most people with Barrett’s by our current screening process. The problem is, it’s unclear whether it’s important or not to find them. To extrapolate from your study and say that anyone with central obesity ought to be screened for [Barrett’s esophagus] is a little strong, I think."

"It’s very controversial," Dr. Crews agreed. "It’s something we continue to struggle with."

He reported having no relevant financial conflicts.

[email protected]

CHICAGO – The prevalence of erosive esophagitis and Barrett’s esophagus is comparable in individuals regardless of whether they have gastroesophageal reflux symptoms, according to a population-based study.

"These results directly challenge the established GERD-based Barrett’s esophagus screening paradigm and provide strong rationale for using central obesity in Caucasian males with or without symptomatic GERD as criteria for Barrett’s esophagus screening," Dr. Nicholas R. Crews said at the annual Digestive Disease Week.

"In this study, waist-hip ratio was our surrogate marker for central obesity. It’s easily obtainable and usable in clinical practice," noted Dr. Crews of the Mayo Clinic in Rochester, Minn.

Dr. Nicholas R. Crews

Barrett’s esophagus is the precursor lesion and principal risk factor for esophageal adenocarcinoma, a malignancy whose incidence in the United States and other developed nations is increasing at an alarming rate. Improved methods of screening for esophageal adenocarcinoma are sorely needed, he added.

Dr. Crews presented a study in which a representative sample of Olmsted County, Minn., residents over age 50 with no history of endoscopy were randomized to screening for Barrett’s esophagus by one of three methods: sedated endoscopy in the GI suite, unsedated transnasal endoscopy in the clinic, or unsedated transnasal endoscopy in a Mayo mobile research van.

Participants’ mean age was 70 years, 46% were men, 206 of the 209 were white, and only one-third of subjects had GERD symptoms.

The prevalence of esophagitis grades A-C proved to be 32% in the symptomatic GERD group and similar at 29% in those without GERD symptoms. Similarly, Barrett’s esophagus was identified in 8.7% of the symptomatic GERD group and 7.9% of subjects without GERD symptoms. Dysplasia was present in 1.4% of each group. The mean length of the esophageal segment with Barrett’s esophagus was 2.4 cm in patients with GERD symptoms and not significantly different in those who were asymptomatic.

Three risk factors proved significant as predictors of esophageal injury as defined by esophagitis or Barrett’s esophagus: male sex, central obesity as defined by a waist-hip ratio greater than 0.9, and consumption of more than two alcoholic drinks per day. Age, smoking status, and body mass index were not predictive.

The mean waist-to-hip ratio was 0.89 in screened subjects with no esophagitis or Barrett’s esophagus, 0.91 in those with positive endoscopic findings and symptomatic gastroesophageal reflux, and 0.95 in those with positive findings who were asymptomatic.

Audience members expressed skepticism about the notion of routinely screening for Barrett’s esophagus in individuals with central obesity in an era of an unprecedented obesity epidemic.

For example, Dr. Joel E. Richter, who described himself as "an anti-Barrett’s person," commented that he believes gastroenterologists are already overdiagnosing and overtreating the condition, needlessly alarming many patients.

In women, particularly, it’s increasingly clear that Barrett’s esophagus only rarely develops into esophageal adenocarcinoma, he said.

"Others have said that women with Barrett’s esophagus are as likely to get esophageal cancer as men are to get breast cancer," commented Dr. Richter, professor of internal medicine and director of the center for swallowing disorders at the University of South Florida, Tampa.

Another audience member told Dr. Crews, "I totally agree with you that we miss most people with Barrett’s by our current screening process. The problem is, it’s unclear whether it’s important or not to find them. To extrapolate from your study and say that anyone with central obesity ought to be screened for [Barrett’s esophagus] is a little strong, I think."

"It’s very controversial," Dr. Crews agreed. "It’s something we continue to struggle with."

He reported having no relevant financial conflicts.

[email protected]

Publications
Publications
Topics
Article Type
Display Headline
Screen for Barrett’s in all with central obesity?
Display Headline
Screen for Barrett’s in all with central obesity?
Legacy Keywords
GERD-based Barrett’s esophagus, Barrett’s esophagus screening, GERD, Dr. Nicholas R. Crews, esophageal adenocarcinoma,
Legacy Keywords
GERD-based Barrett’s esophagus, Barrett’s esophagus screening, GERD, Dr. Nicholas R. Crews, esophageal adenocarcinoma,
Sections
Article Source

AT DDW 2014

PURLs Copyright

Inside the Article

Vitals

Key clinical point: The current recommended strategy of screening for Barrett’s esophagus on the basis of symptoms of gastroesophageal reflux is called into question by a new study showing the esophageal cancer precursor lesion is just as common in screened asymptomatic individuals.

Major finding: The mean waist-to-hip ratio was 0.89 in screened subjects with no esophagitis or Barrett’s esophagus, 0.91 in those with positive endoscopic findings and symptomatic gastroesophageal reflux, and 0.95 in those with positive findings who were asymptomatic.

Data source: This was a prospective population-based study in which 209 individuals over age 50 with no history of endoscopy, two-thirds of whom had no gastroesophageal reflux symptoms, underwent screening endoscopy.

Disclosures: The presenter reported having no relevant financial conflicts.

To MU or not to MU, that is the question

Article Type
Changed
Fri, 01/18/2019 - 13:41
Display Headline
To MU or not to MU, that is the question

If you are still on the fence on meaningful use – our government’s motivational strategy for popularizing electronic health records – the point of no return is rapidly approaching: If you want to qualify for at least a portion of the incentive money, plus avoid a 1% penalty (eventually rising to 5%) on your Medicare Part B reimbursements, this year is your final opportunity to join the party. And, unfortunately, it is not simply a matter of adopting an electronic record system.

Each year, you must attest to demonstrating "meaningful use" (MU) of that system. To do that, you must continually monitor your progress toward meeting the necessary percentage benchmarks, making course corrections as you go. If the numbers are not there when your practice is ready to attest, it will have all been for naught, and a major waste of time and resources.

That being the case, private practitioners who have not yet taken the plunge – and those who have, but are undecided on progressing to stage 2 – must ask themselves whether the significant temporal and monetary investment is worth the trouble.

Many, apparently, have decided that it is not. While a substantial percentage of eligible practitioners signed up for stage 1, approximately 20% of them stopped participating in 2013. And according to the Centers for Medicare & Medicaid Services’ own data, only 4 hospitals and 50 individual practitioners in the entire country had attested to stage 2 through March of 2014.

The American Medical Association has little faith in the program, at least in its current form. In an open letter to the CMS in May 2014, they predicted significantly higher dropout rates unless major modifications are made. Specifically, they singled out the requirement that providers meet all requirements at each stage. Rather than "all or nothing," they proposed a 75% achievement level to receive incentive payments, and a 50% minimum to avoid financial penalties. The AMA also recommended eliminating all benchmarks beyond physicians’ control, such as the stage 2 goal of 5% patient participation on the practice’s electronic health record (EHR) portal.

Another problem that falls outside the control of physicians is maintenance of EHR software. Nearly one EHR-equipped office in five, according to the CMS, is running software that does not meet stage 2 standards. The unfortunate owners of systems that cannot be upgraded before the stage 2 deadline will – through no fault of their own – be faced with a Morton’s fork of replacing their EHR on short notice or abandoning their quest for stage 2 attestation.

While the CMS has not yet indicated whether it has any inclination to address these issues or ease any of the requirements, one official did announce that the agency will be more flexible with its hardship exemptions on a case-by-case basis. Currently, such exemptions are available to new providers, those recovering from natural disasters, and others, such as pathologists, who do not interact face-to-face with patients.

So the question remains: Is the investment of time and resources needed to capture all of the data necessary for successful MU attestation worth making? Is it justified by the promise of MU incentive dollars and the benefits to your practice and your patients? And what exactly are those purported benefits, anyway?

Proponents maintain that integrated EHR will lead to improved documentation, which in turn should lead to improvements in patient care. Errors would be more easily identified because entries from generalists, specialists, labs, and others would be available to all at any time. All involved providers, theoretically, would be on the same page with every individual patient. The downside, of course, is that the real world seldom reflects the ideal situation envisioned by bureaucrats.

Ultimately, the choice is yours: Each private practitioner must decide whether starting (or continuing) meaningful use is worth the financial and time burden in his or her particular situation. If you are still undecided, time is almost up: You must begin your 90-day stage 1 reporting period in July 2014 in order to attest by the final deadline of October 1. The last calendar quarter to begin stage 2 reporting starts on October 1 as well. Detailed instructions for meeting stage 1 and stage 2 deadlines are available from many sources, including the American Academy of Dermatology website.

Dr. Eastern practices dermatology and dermatologic surgery in Belleville, N.J. He is the author of numerous articles and textbook chapters, and is a long-time monthly columnist for Skin & Allergy News.

Author and Disclosure Information

Publications
Legacy Keywords
meaningful use, government, electronic health records, Medicare Part B, reimbursements,
Sections
Author and Disclosure Information

Author and Disclosure Information

If you are still on the fence on meaningful use – our government’s motivational strategy for popularizing electronic health records – the point of no return is rapidly approaching: If you want to qualify for at least a portion of the incentive money, plus avoid a 1% penalty (eventually rising to 5%) on your Medicare Part B reimbursements, this year is your final opportunity to join the party. And, unfortunately, it is not simply a matter of adopting an electronic record system.

Each year, you must attest to demonstrating "meaningful use" (MU) of that system. To do that, you must continually monitor your progress toward meeting the necessary percentage benchmarks, making course corrections as you go. If the numbers are not there when your practice is ready to attest, it will have all been for naught, and a major waste of time and resources.

That being the case, private practitioners who have not yet taken the plunge – and those who have, but are undecided on progressing to stage 2 – must ask themselves whether the significant temporal and monetary investment is worth the trouble.

Many, apparently, have decided that it is not. While a substantial percentage of eligible practitioners signed up for stage 1, approximately 20% of them stopped participating in 2013. And according to the Centers for Medicare & Medicaid Services’ own data, only 4 hospitals and 50 individual practitioners in the entire country had attested to stage 2 through March of 2014.

The American Medical Association has little faith in the program, at least in its current form. In an open letter to the CMS in May 2014, they predicted significantly higher dropout rates unless major modifications are made. Specifically, they singled out the requirement that providers meet all requirements at each stage. Rather than "all or nothing," they proposed a 75% achievement level to receive incentive payments, and a 50% minimum to avoid financial penalties. The AMA also recommended eliminating all benchmarks beyond physicians’ control, such as the stage 2 goal of 5% patient participation on the practice’s electronic health record (EHR) portal.

Another problem that falls outside the control of physicians is maintenance of EHR software. Nearly one EHR-equipped office in five, according to the CMS, is running software that does not meet stage 2 standards. The unfortunate owners of systems that cannot be upgraded before the stage 2 deadline will – through no fault of their own – be faced with a Morton’s fork of replacing their EHR on short notice or abandoning their quest for stage 2 attestation.

While the CMS has not yet indicated whether it has any inclination to address these issues or ease any of the requirements, one official did announce that the agency will be more flexible with its hardship exemptions on a case-by-case basis. Currently, such exemptions are available to new providers, those recovering from natural disasters, and others, such as pathologists, who do not interact face-to-face with patients.

So the question remains: Is the investment of time and resources needed to capture all of the data necessary for successful MU attestation worth making? Is it justified by the promise of MU incentive dollars and the benefits to your practice and your patients? And what exactly are those purported benefits, anyway?

Proponents maintain that integrated EHR will lead to improved documentation, which in turn should lead to improvements in patient care. Errors would be more easily identified because entries from generalists, specialists, labs, and others would be available to all at any time. All involved providers, theoretically, would be on the same page with every individual patient. The downside, of course, is that the real world seldom reflects the ideal situation envisioned by bureaucrats.

Ultimately, the choice is yours: Each private practitioner must decide whether starting (or continuing) meaningful use is worth the financial and time burden in his or her particular situation. If you are still undecided, time is almost up: You must begin your 90-day stage 1 reporting period in July 2014 in order to attest by the final deadline of October 1. The last calendar quarter to begin stage 2 reporting starts on October 1 as well. Detailed instructions for meeting stage 1 and stage 2 deadlines are available from many sources, including the American Academy of Dermatology website.

Dr. Eastern practices dermatology and dermatologic surgery in Belleville, N.J. He is the author of numerous articles and textbook chapters, and is a long-time monthly columnist for Skin & Allergy News.

If you are still on the fence on meaningful use – our government’s motivational strategy for popularizing electronic health records – the point of no return is rapidly approaching: If you want to qualify for at least a portion of the incentive money, plus avoid a 1% penalty (eventually rising to 5%) on your Medicare Part B reimbursements, this year is your final opportunity to join the party. And, unfortunately, it is not simply a matter of adopting an electronic record system.

Each year, you must attest to demonstrating "meaningful use" (MU) of that system. To do that, you must continually monitor your progress toward meeting the necessary percentage benchmarks, making course corrections as you go. If the numbers are not there when your practice is ready to attest, it will have all been for naught, and a major waste of time and resources.

That being the case, private practitioners who have not yet taken the plunge – and those who have, but are undecided on progressing to stage 2 – must ask themselves whether the significant temporal and monetary investment is worth the trouble.

Many, apparently, have decided that it is not. While a substantial percentage of eligible practitioners signed up for stage 1, approximately 20% of them stopped participating in 2013. And according to the Centers for Medicare & Medicaid Services’ own data, only 4 hospitals and 50 individual practitioners in the entire country had attested to stage 2 through March of 2014.

The American Medical Association has little faith in the program, at least in its current form. In an open letter to the CMS in May 2014, they predicted significantly higher dropout rates unless major modifications are made. Specifically, they singled out the requirement that providers meet all requirements at each stage. Rather than "all or nothing," they proposed a 75% achievement level to receive incentive payments, and a 50% minimum to avoid financial penalties. The AMA also recommended eliminating all benchmarks beyond physicians’ control, such as the stage 2 goal of 5% patient participation on the practice’s electronic health record (EHR) portal.

Another problem that falls outside the control of physicians is maintenance of EHR software. Nearly one EHR-equipped office in five, according to the CMS, is running software that does not meet stage 2 standards. The unfortunate owners of systems that cannot be upgraded before the stage 2 deadline will – through no fault of their own – be faced with a Morton’s fork of replacing their EHR on short notice or abandoning their quest for stage 2 attestation.

While the CMS has not yet indicated whether it has any inclination to address these issues or ease any of the requirements, one official did announce that the agency will be more flexible with its hardship exemptions on a case-by-case basis. Currently, such exemptions are available to new providers, those recovering from natural disasters, and others, such as pathologists, who do not interact face-to-face with patients.

So the question remains: Is the investment of time and resources needed to capture all of the data necessary for successful MU attestation worth making? Is it justified by the promise of MU incentive dollars and the benefits to your practice and your patients? And what exactly are those purported benefits, anyway?

Proponents maintain that integrated EHR will lead to improved documentation, which in turn should lead to improvements in patient care. Errors would be more easily identified because entries from generalists, specialists, labs, and others would be available to all at any time. All involved providers, theoretically, would be on the same page with every individual patient. The downside, of course, is that the real world seldom reflects the ideal situation envisioned by bureaucrats.

Ultimately, the choice is yours: Each private practitioner must decide whether starting (or continuing) meaningful use is worth the financial and time burden in his or her particular situation. If you are still undecided, time is almost up: You must begin your 90-day stage 1 reporting period in July 2014 in order to attest by the final deadline of October 1. The last calendar quarter to begin stage 2 reporting starts on October 1 as well. Detailed instructions for meeting stage 1 and stage 2 deadlines are available from many sources, including the American Academy of Dermatology website.

Dr. Eastern practices dermatology and dermatologic surgery in Belleville, N.J. He is the author of numerous articles and textbook chapters, and is a long-time monthly columnist for Skin & Allergy News.

Publications
Publications
Article Type
Display Headline
To MU or not to MU, that is the question
Display Headline
To MU or not to MU, that is the question
Legacy Keywords
meaningful use, government, electronic health records, Medicare Part B, reimbursements,
Legacy Keywords
meaningful use, government, electronic health records, Medicare Part B, reimbursements,
Sections
Article Source

PURLs Copyright

Inside the Article