User login
Quality and safety of hospital care from the patient perspective
Background: Delivery of high-quality, safe care is key to earning the trust and confidence of patients. Patients can be a valuable asset in determining and evaluating the quality and safety of the care they receive. Collectively analyzing patient perceptions remains a challenge.
Study design: Multicenter, wait-list design, cluster-randomized controlled trial.
Setting: Five National Health Service Trusts Hospital sites in the north of England.
Synopsis: Data were collected via validated survey of inpatients; 1,155 patient incident reports were gathered from 579 patients. Patient volunteers were trained to group these reports into 14 categories. Next, clinical researchers and physicians independently reviewed all reports for presence of a patient safety incident (PSI) using a previously determined consensus definition.
One in 10 patients identified a PSI. There was variability in classifying incidents as PSIs in some categories. Of the concerns expressed by patients, 65% were not classified as PSI. Limitations included a focus on patient’s concerns rather than safety, PSI estimates based on patient’s feedback without clinical information, and lack of inter-rater reliability estimates.
Bottom line: Effective translation of patient experience can provide valuable insights about safety and quality of care in hospital.
Citation: O’Hara JK et al. What can patients tell us about the quality and safety of hospital care? Findings from a UK multicentre survey study. BMJ Qual Saf. 2018 Mar 15. doi: 10.1136/bmjqs-2017-006974.
Dr. Chikkanna is an assistant professor in the division of hospital medicine at the University of Kentucky, Lexington.
Background: Delivery of high-quality, safe care is key to earning the trust and confidence of patients. Patients can be a valuable asset in determining and evaluating the quality and safety of the care they receive. Collectively analyzing patient perceptions remains a challenge.
Study design: Multicenter, wait-list design, cluster-randomized controlled trial.
Setting: Five National Health Service Trusts Hospital sites in the north of England.
Synopsis: Data were collected via validated survey of inpatients; 1,155 patient incident reports were gathered from 579 patients. Patient volunteers were trained to group these reports into 14 categories. Next, clinical researchers and physicians independently reviewed all reports for presence of a patient safety incident (PSI) using a previously determined consensus definition.
One in 10 patients identified a PSI. There was variability in classifying incidents as PSIs in some categories. Of the concerns expressed by patients, 65% were not classified as PSI. Limitations included a focus on patient’s concerns rather than safety, PSI estimates based on patient’s feedback without clinical information, and lack of inter-rater reliability estimates.
Bottom line: Effective translation of patient experience can provide valuable insights about safety and quality of care in hospital.
Citation: O’Hara JK et al. What can patients tell us about the quality and safety of hospital care? Findings from a UK multicentre survey study. BMJ Qual Saf. 2018 Mar 15. doi: 10.1136/bmjqs-2017-006974.
Dr. Chikkanna is an assistant professor in the division of hospital medicine at the University of Kentucky, Lexington.
Background: Delivery of high-quality, safe care is key to earning the trust and confidence of patients. Patients can be a valuable asset in determining and evaluating the quality and safety of the care they receive. Collectively analyzing patient perceptions remains a challenge.
Study design: Multicenter, wait-list design, cluster-randomized controlled trial.
Setting: Five National Health Service Trusts Hospital sites in the north of England.
Synopsis: Data were collected via validated survey of inpatients; 1,155 patient incident reports were gathered from 579 patients. Patient volunteers were trained to group these reports into 14 categories. Next, clinical researchers and physicians independently reviewed all reports for presence of a patient safety incident (PSI) using a previously determined consensus definition.
One in 10 patients identified a PSI. There was variability in classifying incidents as PSIs in some categories. Of the concerns expressed by patients, 65% were not classified as PSI. Limitations included a focus on patient’s concerns rather than safety, PSI estimates based on patient’s feedback without clinical information, and lack of inter-rater reliability estimates.
Bottom line: Effective translation of patient experience can provide valuable insights about safety and quality of care in hospital.
Citation: O’Hara JK et al. What can patients tell us about the quality and safety of hospital care? Findings from a UK multicentre survey study. BMJ Qual Saf. 2018 Mar 15. doi: 10.1136/bmjqs-2017-006974.
Dr. Chikkanna is an assistant professor in the division of hospital medicine at the University of Kentucky, Lexington.
Variation in bacterial drug susceptibility tied to TB relapse risk
Higher pretreatment drug concentrations close to a resistance breakpoint for susceptibility were associated with greater relapse risk in TB, based on data from 54 patients who relapsed and 63 who were treated and cured.
“We postulated that drug-susceptible Mycobacterium tuberculosis might have a graded spectrum of susceptibilities that could be used to determine the risk of relapse,” wrote Roberto Colangeli, PhD, of Rutgers University, Newark, N.J., and his colleagues.
In a study published in the New England Journal of Medicine, the researchers examined pretreatment bacterial isolates from adults with TB who had experienced relapse and those who were cured. Using these isolates, they identified the minimum inhibitory concentration (MIC) – the lowest concentration of the drug that prevents visible bacterial growth in culture – for isoniazid and rifampin.
Overall, after controlling for other potential relapse risk factors, higher pretreatment MIC values for both isoniazid and rifampin were associated with an increased relapse risk. For isoniazid, the average MIC below the breakpoint was 0.0334 mcg/mL for relapsed patients and 0.0286 mcg/mL for cured patients. For rifampin, the average MIC below the breakpoint was 0.0695 mcg/mL for relapsed patients and 0.0453 mcg/mL for cured patients. The higher values for the relapsed versus cured patients were represented by factors of 1.17 and 1.53 for isoniazid and rifampin, respectively.
The average age of the patients was 41 years; 83% were men, and 35% were non-Hispanic white.
The study findings were limited by several factors, including the small sample size, retrospective design, and inability to test MIC values from primary cultures versus subcultures, the researchers wrote. However, the results suggest an impact of MIC values on treatment outcomes, and “additional studies that are performed in larger, well-defined prospective cohorts and that include MIC testing of pretreatment culture isolates will be useful to better validate these findings,”
The study was funded by the National Institute of Allergy and Infectious Diseases. Dr. Colangeli reported no financial conflicts. Dr. Alland disclosed funding from Cepheid and several current and pending patents in the United States and Europe, with some royalties paid to Cepheid.
SOURCE: Colangeli R et al. N Engl J Med. 2018;379:823-33.
Although standard four-drug therapy has been shown to cure 90% of patients in several clinical trials, patients do relapse for reasons such as poor treatment adherence and “variations in the characteristics of the infected patients or the infecting pathogens,” wrote Eric J. Rubin, MD, in an accompanying editorial (N Engl J Med. 2018;379:882-3).
Current antibiotic susceptibility thresholds are often set by committees using models, said Dr. Rubin. “Given the uncertainties in modeling, as has been seen in clinical studies, these breakpoints can be imperfect predictors of treatment response.”
Dr. Rubin proposed that minimum inhibitory concentration (MIC) concentrations could be an alternative to in vitro testing as a predictor of treatment response.
“The clinical laboratory provides us not only with a breakpoint interpretation but also with raw data, a quantitative assessment of MIC values,” he noted. “These values can be thought of more as probabilities of successful therapy than as absolute thresholds, a change in attitude that may dispel a false sense of security about the choice of regimen in the treatment of patients with tuberculosis.”
Dr. Rubin is affiliated with the department of immunology and infectious diseases at the Harvard School of Public Health, Boston. He had no relevant financial conflicts to disclose.
Although standard four-drug therapy has been shown to cure 90% of patients in several clinical trials, patients do relapse for reasons such as poor treatment adherence and “variations in the characteristics of the infected patients or the infecting pathogens,” wrote Eric J. Rubin, MD, in an accompanying editorial (N Engl J Med. 2018;379:882-3).
Current antibiotic susceptibility thresholds are often set by committees using models, said Dr. Rubin. “Given the uncertainties in modeling, as has been seen in clinical studies, these breakpoints can be imperfect predictors of treatment response.”
Dr. Rubin proposed that minimum inhibitory concentration (MIC) concentrations could be an alternative to in vitro testing as a predictor of treatment response.
“The clinical laboratory provides us not only with a breakpoint interpretation but also with raw data, a quantitative assessment of MIC values,” he noted. “These values can be thought of more as probabilities of successful therapy than as absolute thresholds, a change in attitude that may dispel a false sense of security about the choice of regimen in the treatment of patients with tuberculosis.”
Dr. Rubin is affiliated with the department of immunology and infectious diseases at the Harvard School of Public Health, Boston. He had no relevant financial conflicts to disclose.
Although standard four-drug therapy has been shown to cure 90% of patients in several clinical trials, patients do relapse for reasons such as poor treatment adherence and “variations in the characteristics of the infected patients or the infecting pathogens,” wrote Eric J. Rubin, MD, in an accompanying editorial (N Engl J Med. 2018;379:882-3).
Current antibiotic susceptibility thresholds are often set by committees using models, said Dr. Rubin. “Given the uncertainties in modeling, as has been seen in clinical studies, these breakpoints can be imperfect predictors of treatment response.”
Dr. Rubin proposed that minimum inhibitory concentration (MIC) concentrations could be an alternative to in vitro testing as a predictor of treatment response.
“The clinical laboratory provides us not only with a breakpoint interpretation but also with raw data, a quantitative assessment of MIC values,” he noted. “These values can be thought of more as probabilities of successful therapy than as absolute thresholds, a change in attitude that may dispel a false sense of security about the choice of regimen in the treatment of patients with tuberculosis.”
Dr. Rubin is affiliated with the department of immunology and infectious diseases at the Harvard School of Public Health, Boston. He had no relevant financial conflicts to disclose.
Higher pretreatment drug concentrations close to a resistance breakpoint for susceptibility were associated with greater relapse risk in TB, based on data from 54 patients who relapsed and 63 who were treated and cured.
“We postulated that drug-susceptible Mycobacterium tuberculosis might have a graded spectrum of susceptibilities that could be used to determine the risk of relapse,” wrote Roberto Colangeli, PhD, of Rutgers University, Newark, N.J., and his colleagues.
In a study published in the New England Journal of Medicine, the researchers examined pretreatment bacterial isolates from adults with TB who had experienced relapse and those who were cured. Using these isolates, they identified the minimum inhibitory concentration (MIC) – the lowest concentration of the drug that prevents visible bacterial growth in culture – for isoniazid and rifampin.
Overall, after controlling for other potential relapse risk factors, higher pretreatment MIC values for both isoniazid and rifampin were associated with an increased relapse risk. For isoniazid, the average MIC below the breakpoint was 0.0334 mcg/mL for relapsed patients and 0.0286 mcg/mL for cured patients. For rifampin, the average MIC below the breakpoint was 0.0695 mcg/mL for relapsed patients and 0.0453 mcg/mL for cured patients. The higher values for the relapsed versus cured patients were represented by factors of 1.17 and 1.53 for isoniazid and rifampin, respectively.
The average age of the patients was 41 years; 83% were men, and 35% were non-Hispanic white.
The study findings were limited by several factors, including the small sample size, retrospective design, and inability to test MIC values from primary cultures versus subcultures, the researchers wrote. However, the results suggest an impact of MIC values on treatment outcomes, and “additional studies that are performed in larger, well-defined prospective cohorts and that include MIC testing of pretreatment culture isolates will be useful to better validate these findings,”
The study was funded by the National Institute of Allergy and Infectious Diseases. Dr. Colangeli reported no financial conflicts. Dr. Alland disclosed funding from Cepheid and several current and pending patents in the United States and Europe, with some royalties paid to Cepheid.
SOURCE: Colangeli R et al. N Engl J Med. 2018;379:823-33.
Higher pretreatment drug concentrations close to a resistance breakpoint for susceptibility were associated with greater relapse risk in TB, based on data from 54 patients who relapsed and 63 who were treated and cured.
“We postulated that drug-susceptible Mycobacterium tuberculosis might have a graded spectrum of susceptibilities that could be used to determine the risk of relapse,” wrote Roberto Colangeli, PhD, of Rutgers University, Newark, N.J., and his colleagues.
In a study published in the New England Journal of Medicine, the researchers examined pretreatment bacterial isolates from adults with TB who had experienced relapse and those who were cured. Using these isolates, they identified the minimum inhibitory concentration (MIC) – the lowest concentration of the drug that prevents visible bacterial growth in culture – for isoniazid and rifampin.
Overall, after controlling for other potential relapse risk factors, higher pretreatment MIC values for both isoniazid and rifampin were associated with an increased relapse risk. For isoniazid, the average MIC below the breakpoint was 0.0334 mcg/mL for relapsed patients and 0.0286 mcg/mL for cured patients. For rifampin, the average MIC below the breakpoint was 0.0695 mcg/mL for relapsed patients and 0.0453 mcg/mL for cured patients. The higher values for the relapsed versus cured patients were represented by factors of 1.17 and 1.53 for isoniazid and rifampin, respectively.
The average age of the patients was 41 years; 83% were men, and 35% were non-Hispanic white.
The study findings were limited by several factors, including the small sample size, retrospective design, and inability to test MIC values from primary cultures versus subcultures, the researchers wrote. However, the results suggest an impact of MIC values on treatment outcomes, and “additional studies that are performed in larger, well-defined prospective cohorts and that include MIC testing of pretreatment culture isolates will be useful to better validate these findings,”
The study was funded by the National Institute of Allergy and Infectious Diseases. Dr. Colangeli reported no financial conflicts. Dr. Alland disclosed funding from Cepheid and several current and pending patents in the United States and Europe, with some royalties paid to Cepheid.
SOURCE: Colangeli R et al. N Engl J Med. 2018;379:823-33.
FROM THE NEW ENGLAND JOURNAL OF MEDICINE
Key clinical point: Risk of TB relapse increased with higher pretreatment minimum inhibitory concentration values for either isoniazid or rifampin.
Major finding: The higher values for the relapsed versus cured patients were represented by factors of 1.17 and 1.53 for isoniazid and rifampin, respectively.
Study details: The data come from a retrospective study of isolates from 54 patients with TB who relapsed and 63 who were treated and cured.
Disclosures: The study was funded by the National Institute of Allergy and Infectious Diseases. Dr. Colangeli reported no financial conflicts. Dr. Alland disclosed funding from Cepheid and several current and pending patents in the United States and Europe, with some royalties paid to Cepheid.
Source: Colangeli R et al. N Engl J Med. 2018;379:823-33.
Rivaroxaban superior to aspirin for extended VTE treatment
Both low-dose and full-dose rivaroxaban had superior benefit-risk profiles for extended venous thromboembolism (VTE) treatment compared with aspirin, according to results published in Thrombosis Research.
Incidences of the combined outcome of recurrent VTE and major bleeding were 2.8% and 3.4% lower for patients treated with rivaroxaban at 20 mg and 10 mg, respectively, than for those treated with aspirin, reported Paolo Prandoni, MD, of the department of cardiothoracic and vascular sciences at the University of Padua, Italy, and his coauthors.
Investigators analyzed data from the EINSTEIN-CHOICE trial, a double-blind, randomized study of 3,365 patients aged 18 years or older with deep vein thrombosis or pulmonary embolism who had previously received anticoagulant treatment for 6-12 months. Patients were given either once-daily rivaroxaban at a low dose (10 mg), once-daily rivaroxaban at full dose (20 mg), or once- daily aspirin at a dose of 100 mg.
Benefit and risk were calculated using “excess numbers of events,” or the difference in cumulative incidences in a hypothetical population of 10,000 VTE patients treated for 1 year. Excess numbers of events were defined as the number of patients in this hypothetical population who would experience a particular event when treated with rivaroxaban (at either dose), minus that in the same population treated with aspirin.
The cumulative incidences of recurrent VTE in the full-dose rivaroxaban, low-dose rivaroxaban, and aspirin groups were 1.9%, 1.6%, and 5.0%, respectively. The cumulative incidences of major bleeding in these groups were 0.7%, 0.4% and 0.5%, respectively.
In patients treated with 20 mg of rivaroxaban instead of aspirin, there would be 123 fewer episodes of pulmonary embolism (95% confidence interval, 21-226) and 198 fewer episodes of deep vein thrombosis (95% CI, 62-333).
In patients given 10 mg of rivaroxaban instead of aspirin, there would be 121 fewer episodes of pulmonary embolism (95% CI, 4-238) and 217 fewer episodes of deep vein thrombosis (95% CI, 92-342), Dr. Prandoni and his colleagues wrote.
Net clinical benefit was defined as the composite of symptomatic recurrent VTE and major bleeding events, and occurred in 23 patients in the full-dose rivaroxaban group, 17 patients in the low-dose rivaroxaban group, and 53 patients in the aspirin group.
For 10,000 patients treated for 1 year with rivaroxaban instead of aspirin, there would be 284 fewer net clinical benefit outcomes for the 20-mg dose (95% CI, 106-462) and 339 fewer (95% CI, 165-512) for the 10-mg dose. “Thus, compared with aspirin, one additional symptomatic recurrent VTE or major bleed would be avoided for every 36 or 30 patients treated with rivaroxaban 20 mg or 10 mg, respectively,” the investigators wrote.
The findings indicate that there is “no longer a place” for extended VTE treatment with aspirin, the investigators said.
“Extended anticoagulation with once daily rivaroxaban ... provides a clinically important benefit in terms of reduction in recurrent VTE,” they wrote. “Regardless of which dose is chosen ... rivaroxaban has a favourable benefit-risk profile relative to aspirin.”
Bayer AG funded the study. Dr. Prandoni reported financial relationships with Bayer, Sanofi, Daiichi Sankyo, and Pfizer.
SOURCE: Prandoni P et al. Thromb Res. 2018 Aug;168:121-9.
Both low-dose and full-dose rivaroxaban had superior benefit-risk profiles for extended venous thromboembolism (VTE) treatment compared with aspirin, according to results published in Thrombosis Research.
Incidences of the combined outcome of recurrent VTE and major bleeding were 2.8% and 3.4% lower for patients treated with rivaroxaban at 20 mg and 10 mg, respectively, than for those treated with aspirin, reported Paolo Prandoni, MD, of the department of cardiothoracic and vascular sciences at the University of Padua, Italy, and his coauthors.
Investigators analyzed data from the EINSTEIN-CHOICE trial, a double-blind, randomized study of 3,365 patients aged 18 years or older with deep vein thrombosis or pulmonary embolism who had previously received anticoagulant treatment for 6-12 months. Patients were given either once-daily rivaroxaban at a low dose (10 mg), once-daily rivaroxaban at full dose (20 mg), or once- daily aspirin at a dose of 100 mg.
Benefit and risk were calculated using “excess numbers of events,” or the difference in cumulative incidences in a hypothetical population of 10,000 VTE patients treated for 1 year. Excess numbers of events were defined as the number of patients in this hypothetical population who would experience a particular event when treated with rivaroxaban (at either dose), minus that in the same population treated with aspirin.
The cumulative incidences of recurrent VTE in the full-dose rivaroxaban, low-dose rivaroxaban, and aspirin groups were 1.9%, 1.6%, and 5.0%, respectively. The cumulative incidences of major bleeding in these groups were 0.7%, 0.4% and 0.5%, respectively.
In patients treated with 20 mg of rivaroxaban instead of aspirin, there would be 123 fewer episodes of pulmonary embolism (95% confidence interval, 21-226) and 198 fewer episodes of deep vein thrombosis (95% CI, 62-333).
In patients given 10 mg of rivaroxaban instead of aspirin, there would be 121 fewer episodes of pulmonary embolism (95% CI, 4-238) and 217 fewer episodes of deep vein thrombosis (95% CI, 92-342), Dr. Prandoni and his colleagues wrote.
Net clinical benefit was defined as the composite of symptomatic recurrent VTE and major bleeding events, and occurred in 23 patients in the full-dose rivaroxaban group, 17 patients in the low-dose rivaroxaban group, and 53 patients in the aspirin group.
For 10,000 patients treated for 1 year with rivaroxaban instead of aspirin, there would be 284 fewer net clinical benefit outcomes for the 20-mg dose (95% CI, 106-462) and 339 fewer (95% CI, 165-512) for the 10-mg dose. “Thus, compared with aspirin, one additional symptomatic recurrent VTE or major bleed would be avoided for every 36 or 30 patients treated with rivaroxaban 20 mg or 10 mg, respectively,” the investigators wrote.
The findings indicate that there is “no longer a place” for extended VTE treatment with aspirin, the investigators said.
“Extended anticoagulation with once daily rivaroxaban ... provides a clinically important benefit in terms of reduction in recurrent VTE,” they wrote. “Regardless of which dose is chosen ... rivaroxaban has a favourable benefit-risk profile relative to aspirin.”
Bayer AG funded the study. Dr. Prandoni reported financial relationships with Bayer, Sanofi, Daiichi Sankyo, and Pfizer.
SOURCE: Prandoni P et al. Thromb Res. 2018 Aug;168:121-9.
Both low-dose and full-dose rivaroxaban had superior benefit-risk profiles for extended venous thromboembolism (VTE) treatment compared with aspirin, according to results published in Thrombosis Research.
Incidences of the combined outcome of recurrent VTE and major bleeding were 2.8% and 3.4% lower for patients treated with rivaroxaban at 20 mg and 10 mg, respectively, than for those treated with aspirin, reported Paolo Prandoni, MD, of the department of cardiothoracic and vascular sciences at the University of Padua, Italy, and his coauthors.
Investigators analyzed data from the EINSTEIN-CHOICE trial, a double-blind, randomized study of 3,365 patients aged 18 years or older with deep vein thrombosis or pulmonary embolism who had previously received anticoagulant treatment for 6-12 months. Patients were given either once-daily rivaroxaban at a low dose (10 mg), once-daily rivaroxaban at full dose (20 mg), or once- daily aspirin at a dose of 100 mg.
Benefit and risk were calculated using “excess numbers of events,” or the difference in cumulative incidences in a hypothetical population of 10,000 VTE patients treated for 1 year. Excess numbers of events were defined as the number of patients in this hypothetical population who would experience a particular event when treated with rivaroxaban (at either dose), minus that in the same population treated with aspirin.
The cumulative incidences of recurrent VTE in the full-dose rivaroxaban, low-dose rivaroxaban, and aspirin groups were 1.9%, 1.6%, and 5.0%, respectively. The cumulative incidences of major bleeding in these groups were 0.7%, 0.4% and 0.5%, respectively.
In patients treated with 20 mg of rivaroxaban instead of aspirin, there would be 123 fewer episodes of pulmonary embolism (95% confidence interval, 21-226) and 198 fewer episodes of deep vein thrombosis (95% CI, 62-333).
In patients given 10 mg of rivaroxaban instead of aspirin, there would be 121 fewer episodes of pulmonary embolism (95% CI, 4-238) and 217 fewer episodes of deep vein thrombosis (95% CI, 92-342), Dr. Prandoni and his colleagues wrote.
Net clinical benefit was defined as the composite of symptomatic recurrent VTE and major bleeding events, and occurred in 23 patients in the full-dose rivaroxaban group, 17 patients in the low-dose rivaroxaban group, and 53 patients in the aspirin group.
For 10,000 patients treated for 1 year with rivaroxaban instead of aspirin, there would be 284 fewer net clinical benefit outcomes for the 20-mg dose (95% CI, 106-462) and 339 fewer (95% CI, 165-512) for the 10-mg dose. “Thus, compared with aspirin, one additional symptomatic recurrent VTE or major bleed would be avoided for every 36 or 30 patients treated with rivaroxaban 20 mg or 10 mg, respectively,” the investigators wrote.
The findings indicate that there is “no longer a place” for extended VTE treatment with aspirin, the investigators said.
“Extended anticoagulation with once daily rivaroxaban ... provides a clinically important benefit in terms of reduction in recurrent VTE,” they wrote. “Regardless of which dose is chosen ... rivaroxaban has a favourable benefit-risk profile relative to aspirin.”
Bayer AG funded the study. Dr. Prandoni reported financial relationships with Bayer, Sanofi, Daiichi Sankyo, and Pfizer.
SOURCE: Prandoni P et al. Thromb Res. 2018 Aug;168:121-9.
FROM THROMBOSIS RESEARCH
Key clinical point:
Major finding: Incidences of the combined outcome of recurrent VTE and major bleeding were 2.8% and 3.4% lower in the rivaroxaban 20-mg and 10-mg groups, respectively, than in the aspirin group.
Study details: Analysis of data from 3,365 patients in the EINSTEIN-CHOICE trial, a double-blind, randomized study comparing rivaroxaban with aspirin for extended treatment of VTE.
Disclosures: Bayer AG funded the study. Dr. Prandoni disclosed financial relationships with Bayer, Sanofi, Daiichi Sankyo, and Pfizer.
Source: Prandoni P et al. Thromb Res. 2018 Aug;168:121-9.
Patient transfers between hospitals contribute substantially to CDI burden
ATLANTA – Patient sharing among hospital facilities contributed substantially to the overall Clostridium difficile infection rate, an analysis of interhospital contamination effects showed.
In fact, 7.6% of all Clostridium difficile infection (CDI) cases at the nearly 400 California hospitals included in the study were directly attributable to the patient-sharing network, Daniel Sewell, PhD, reported at the International Conference on Emerging Infectious Diseases.
“The methods that we employed allowed us to estimate the expected increase in CDI cases due to transfers as a function of the CDI rate at the hospital from which those patients were brought. These transfer patients were responsible for about 3.06 times the number of CDI cases as a normal patient,” said Dr. Sewell, a biostatistician at the University of Iowa, Iowa City.
The findings, which underscored the importance of regional (rather than local) efforts to minimize the spread of health care–associated infections, are based on an analysis of 27,200,873 hospital admissions and 532,320 same-day patient transfers identified from the Healthcare Cost and Utilization Project California State Inpatient Database for 2005-2011.
Transfer networks based on the monthly average number of patients discharged from one hospital and admitted to another on the same day were constructed, and the monthly average number of CDI cases per hospital were considered, along with hospital-level characteristics such as patient length of stay, age, and number of diagnoses. Network autocorrelation models that help eliminate bias were then used to assess the contamination effects between hospitals, he explained.
This led to development of an equation that can be used to determine the expected number of CDI cases in a hospital as a function of the number of transfers coming in and the contamination level of the source hospitals. The ability to calculate the expected number of CDI cases in this fashion is an important factor for the success of regional versus local intervention efforts, which are increasingly thought to be important for reducing health care–associated infections.
“If we want to design a coordinated or regional approach, we’ve got to have a much better understanding of the role that patient transfers have in these diseases,” Dr. Sewell said.
As most hospitals included in the study had a low CDI rate and a low transfer rate, the CDIs attributable to transfers represent a minority of cases, but they are a substantial minority, he said, noting that the main concern is with the “perfect storm” of high CDI rate plus high transfer rate.
The methodological approach used in this study to estimate CDI rates can be used for any health care–associated infection of interest, he added.
Dr. Sewell reported that he had no disclosures.
ATLANTA – Patient sharing among hospital facilities contributed substantially to the overall Clostridium difficile infection rate, an analysis of interhospital contamination effects showed.
In fact, 7.6% of all Clostridium difficile infection (CDI) cases at the nearly 400 California hospitals included in the study were directly attributable to the patient-sharing network, Daniel Sewell, PhD, reported at the International Conference on Emerging Infectious Diseases.
“The methods that we employed allowed us to estimate the expected increase in CDI cases due to transfers as a function of the CDI rate at the hospital from which those patients were brought. These transfer patients were responsible for about 3.06 times the number of CDI cases as a normal patient,” said Dr. Sewell, a biostatistician at the University of Iowa, Iowa City.
The findings, which underscored the importance of regional (rather than local) efforts to minimize the spread of health care–associated infections, are based on an analysis of 27,200,873 hospital admissions and 532,320 same-day patient transfers identified from the Healthcare Cost and Utilization Project California State Inpatient Database for 2005-2011.
Transfer networks based on the monthly average number of patients discharged from one hospital and admitted to another on the same day were constructed, and the monthly average number of CDI cases per hospital were considered, along with hospital-level characteristics such as patient length of stay, age, and number of diagnoses. Network autocorrelation models that help eliminate bias were then used to assess the contamination effects between hospitals, he explained.
This led to development of an equation that can be used to determine the expected number of CDI cases in a hospital as a function of the number of transfers coming in and the contamination level of the source hospitals. The ability to calculate the expected number of CDI cases in this fashion is an important factor for the success of regional versus local intervention efforts, which are increasingly thought to be important for reducing health care–associated infections.
“If we want to design a coordinated or regional approach, we’ve got to have a much better understanding of the role that patient transfers have in these diseases,” Dr. Sewell said.
As most hospitals included in the study had a low CDI rate and a low transfer rate, the CDIs attributable to transfers represent a minority of cases, but they are a substantial minority, he said, noting that the main concern is with the “perfect storm” of high CDI rate plus high transfer rate.
The methodological approach used in this study to estimate CDI rates can be used for any health care–associated infection of interest, he added.
Dr. Sewell reported that he had no disclosures.
ATLANTA – Patient sharing among hospital facilities contributed substantially to the overall Clostridium difficile infection rate, an analysis of interhospital contamination effects showed.
In fact, 7.6% of all Clostridium difficile infection (CDI) cases at the nearly 400 California hospitals included in the study were directly attributable to the patient-sharing network, Daniel Sewell, PhD, reported at the International Conference on Emerging Infectious Diseases.
“The methods that we employed allowed us to estimate the expected increase in CDI cases due to transfers as a function of the CDI rate at the hospital from which those patients were brought. These transfer patients were responsible for about 3.06 times the number of CDI cases as a normal patient,” said Dr. Sewell, a biostatistician at the University of Iowa, Iowa City.
The findings, which underscored the importance of regional (rather than local) efforts to minimize the spread of health care–associated infections, are based on an analysis of 27,200,873 hospital admissions and 532,320 same-day patient transfers identified from the Healthcare Cost and Utilization Project California State Inpatient Database for 2005-2011.
Transfer networks based on the monthly average number of patients discharged from one hospital and admitted to another on the same day were constructed, and the monthly average number of CDI cases per hospital were considered, along with hospital-level characteristics such as patient length of stay, age, and number of diagnoses. Network autocorrelation models that help eliminate bias were then used to assess the contamination effects between hospitals, he explained.
This led to development of an equation that can be used to determine the expected number of CDI cases in a hospital as a function of the number of transfers coming in and the contamination level of the source hospitals. The ability to calculate the expected number of CDI cases in this fashion is an important factor for the success of regional versus local intervention efforts, which are increasingly thought to be important for reducing health care–associated infections.
“If we want to design a coordinated or regional approach, we’ve got to have a much better understanding of the role that patient transfers have in these diseases,” Dr. Sewell said.
As most hospitals included in the study had a low CDI rate and a low transfer rate, the CDIs attributable to transfers represent a minority of cases, but they are a substantial minority, he said, noting that the main concern is with the “perfect storm” of high CDI rate plus high transfer rate.
The methodological approach used in this study to estimate CDI rates can be used for any health care–associated infection of interest, he added.
Dr. Sewell reported that he had no disclosures.
REPORTING FROM ICEID 2018
Key clinical point: Patient sharing among hospitals contributes substantially to Clostridium difficile infection (CDI) rates.
Major finding: Patient transfers account for 7.6% of the overall CDI burden.
Study details: A statistical analysis to estimate interhospital CDI transmissions.
Disclosures: Dr. Sewell reported that he had no disclosures.
Outcomes of patients with subsegmental PE with and without anticoagulation
Clinical question: Should patients with subsegmental pulmonary embolism be anticoagulated?
Background: A recent CHEST clinical guideline suggests it is reasonable to withhold anticoagulation for subsegmental pulmonary embolism. This has been a topic of controversy given the lack of a systematic review.
Study design: Systematic review and meta-analysis.
Setting: A comprehensive literature search was performed by a medical librarian in Ovid, MEDLINE, PubMed, Embase, the Cochrane Library, Scopus, Web of Science, ClinicalTrials.gov, and Google Scholar.
Synopsis: After 1,512 papers were screened, 14 studies were included in the review and analysis. Primary outcomes were frequency of bleeding, venous thromboembolism recurrence, and death for patients with subsegmental pulmonary embolism with and without treatment. Because of a lack of precision in pooled data and high heterogeneity of outcomes, no inferences could be made about benefit or harm with either approach.
The conclusions were limited because of the small numbers, imprecision, and lack of controlled trials. There is a need for a randomized controlled trial regarding subsegmental pulmonary embolism.
Bottom line: The decision to treat or not treat a patient with subsegmental pulmonary embolism should be done based on clinical judgment and a shared decision-making model with the patient.
Citation: Bariteau A et al. Systematic review and meta-analysis of outcomes of patients with subsegmental pulmonary embolism with and without anticoagulation treatment. Acad Emerg Med. 2018 Mar 2. doi: 10.1111/acem.13399.
Dr. Chadha is an assistant professor in the division of hospital medicine at the University of Kentucky, Lexington.
Clinical question: Should patients with subsegmental pulmonary embolism be anticoagulated?
Background: A recent CHEST clinical guideline suggests it is reasonable to withhold anticoagulation for subsegmental pulmonary embolism. This has been a topic of controversy given the lack of a systematic review.
Study design: Systematic review and meta-analysis.
Setting: A comprehensive literature search was performed by a medical librarian in Ovid, MEDLINE, PubMed, Embase, the Cochrane Library, Scopus, Web of Science, ClinicalTrials.gov, and Google Scholar.
Synopsis: After 1,512 papers were screened, 14 studies were included in the review and analysis. Primary outcomes were frequency of bleeding, venous thromboembolism recurrence, and death for patients with subsegmental pulmonary embolism with and without treatment. Because of a lack of precision in pooled data and high heterogeneity of outcomes, no inferences could be made about benefit or harm with either approach.
The conclusions were limited because of the small numbers, imprecision, and lack of controlled trials. There is a need for a randomized controlled trial regarding subsegmental pulmonary embolism.
Bottom line: The decision to treat or not treat a patient with subsegmental pulmonary embolism should be done based on clinical judgment and a shared decision-making model with the patient.
Citation: Bariteau A et al. Systematic review and meta-analysis of outcomes of patients with subsegmental pulmonary embolism with and without anticoagulation treatment. Acad Emerg Med. 2018 Mar 2. doi: 10.1111/acem.13399.
Dr. Chadha is an assistant professor in the division of hospital medicine at the University of Kentucky, Lexington.
Clinical question: Should patients with subsegmental pulmonary embolism be anticoagulated?
Background: A recent CHEST clinical guideline suggests it is reasonable to withhold anticoagulation for subsegmental pulmonary embolism. This has been a topic of controversy given the lack of a systematic review.
Study design: Systematic review and meta-analysis.
Setting: A comprehensive literature search was performed by a medical librarian in Ovid, MEDLINE, PubMed, Embase, the Cochrane Library, Scopus, Web of Science, ClinicalTrials.gov, and Google Scholar.
Synopsis: After 1,512 papers were screened, 14 studies were included in the review and analysis. Primary outcomes were frequency of bleeding, venous thromboembolism recurrence, and death for patients with subsegmental pulmonary embolism with and without treatment. Because of a lack of precision in pooled data and high heterogeneity of outcomes, no inferences could be made about benefit or harm with either approach.
The conclusions were limited because of the small numbers, imprecision, and lack of controlled trials. There is a need for a randomized controlled trial regarding subsegmental pulmonary embolism.
Bottom line: The decision to treat or not treat a patient with subsegmental pulmonary embolism should be done based on clinical judgment and a shared decision-making model with the patient.
Citation: Bariteau A et al. Systematic review and meta-analysis of outcomes of patients with subsegmental pulmonary embolism with and without anticoagulation treatment. Acad Emerg Med. 2018 Mar 2. doi: 10.1111/acem.13399.
Dr. Chadha is an assistant professor in the division of hospital medicine at the University of Kentucky, Lexington.
Hand hygiene linked to reduced ICU health care–associated infections
A hospital-wide infection control program (ICP) was found to be associated with reduced health care-associated severe sepsis/septic shock or death in the ICU, but it was not clear whether this decrease was a consequence of the ICP or because of a concomitant improvement in HAI case management, according to a the results of a prospective analysis.
In addition, there was no significant decrease in overall HAIs seen despite implementation of the program, according to the report published online in Clinical Microbiology and Infection (doi: 10.1016/j.cmi.2018.07.010), according to Stefan Hagel, MD, of the Institute for Infectious Diseases and Infection Control, Jena (Germany) University Hospital, and his colleagues.
They assessed two surveillance periods (September 2011 to August 2012 and May 2013 to August 2014). The ICP started in October 2012, and included hand-hygiene promotion and bundle implementation for common HAIs.
The data were analyzed by segmented mixed-effects Poisson regression and multi-state models and reported as adjusted incidence rate ratios (aIRR) and 50 adjusted hazard ratios (aHR) with 95% confidence intervals (CI).
In the first period, 62,154 patients were under surveillance, with 1,568 HAIs identified in 1,170 patients (4.3/100 admissions) and 2,336 HAIs identified in 1,711 patients (4.9/100 admissions) in the second surveillance period. No differences were found in the overall HAI incidence rates between the periods in the general wards and ICUs. There was only a slight decline in the incidence rate of HAIs in the ICUs (aIRR 0.98 [0.97, 1.00] per 1-week increment), compared with the general wards (aIRR 1.01 [1.00, 1.02]).
However, a reduction in severe HAIs (aIRR 0.13 [0.05, 0.32]) and a lower probability of HAI-associated in-hospital deaths (aHR 0.56 [0.31, 0.99]) were observed in the second period in the ICUs.
In attempting to explain the variance seen between the results for general wards and the ICU, an analysis of alcohol-based handrub solution consumption as a marker of hand-hygiene behavior indicated that a remarkable increase in consumption occurred in the ICUs while a less pronounced increase occurred in the general wards. “This finding might explain the observed decline in the HAI incidence after starting the campaign in the ICUs, which was not observed on the general wards.” Dr. Hagel and his colleagues suggested.
The authors discussed how several confounding factors that influenced the incidence of HAIs needed to be considered. As a consequence of the improvement in HAI management, the number of collected blood culture sets nearly doubled hospital-wide from 13,126 to 25,805 per year between 2011 and 2014, which likely undermined the study objective, they stated. The increase in cultures may have impacted the number of overall HAIs found.
“Although the primary aim of the study of reducing the overall incidence of HAIs was not achieved, the study demonstrated a decline of severe HAIs in patients in ICUs in the second surveillance period. Whether this result was a consequence of the ICP or a general improvement in HAI management remains unclear,” the researchers concluded.
The authors reported that they had no conflicts of interest.
SOURCE: Hagel S et al. Clin Microbiol Infect. doi: 10.1016/j.cmi.2018.07.010].
A hospital-wide infection control program (ICP) was found to be associated with reduced health care-associated severe sepsis/septic shock or death in the ICU, but it was not clear whether this decrease was a consequence of the ICP or because of a concomitant improvement in HAI case management, according to a the results of a prospective analysis.
In addition, there was no significant decrease in overall HAIs seen despite implementation of the program, according to the report published online in Clinical Microbiology and Infection (doi: 10.1016/j.cmi.2018.07.010), according to Stefan Hagel, MD, of the Institute for Infectious Diseases and Infection Control, Jena (Germany) University Hospital, and his colleagues.
They assessed two surveillance periods (September 2011 to August 2012 and May 2013 to August 2014). The ICP started in October 2012, and included hand-hygiene promotion and bundle implementation for common HAIs.
The data were analyzed by segmented mixed-effects Poisson regression and multi-state models and reported as adjusted incidence rate ratios (aIRR) and 50 adjusted hazard ratios (aHR) with 95% confidence intervals (CI).
In the first period, 62,154 patients were under surveillance, with 1,568 HAIs identified in 1,170 patients (4.3/100 admissions) and 2,336 HAIs identified in 1,711 patients (4.9/100 admissions) in the second surveillance period. No differences were found in the overall HAI incidence rates between the periods in the general wards and ICUs. There was only a slight decline in the incidence rate of HAIs in the ICUs (aIRR 0.98 [0.97, 1.00] per 1-week increment), compared with the general wards (aIRR 1.01 [1.00, 1.02]).
However, a reduction in severe HAIs (aIRR 0.13 [0.05, 0.32]) and a lower probability of HAI-associated in-hospital deaths (aHR 0.56 [0.31, 0.99]) were observed in the second period in the ICUs.
In attempting to explain the variance seen between the results for general wards and the ICU, an analysis of alcohol-based handrub solution consumption as a marker of hand-hygiene behavior indicated that a remarkable increase in consumption occurred in the ICUs while a less pronounced increase occurred in the general wards. “This finding might explain the observed decline in the HAI incidence after starting the campaign in the ICUs, which was not observed on the general wards.” Dr. Hagel and his colleagues suggested.
The authors discussed how several confounding factors that influenced the incidence of HAIs needed to be considered. As a consequence of the improvement in HAI management, the number of collected blood culture sets nearly doubled hospital-wide from 13,126 to 25,805 per year between 2011 and 2014, which likely undermined the study objective, they stated. The increase in cultures may have impacted the number of overall HAIs found.
“Although the primary aim of the study of reducing the overall incidence of HAIs was not achieved, the study demonstrated a decline of severe HAIs in patients in ICUs in the second surveillance period. Whether this result was a consequence of the ICP or a general improvement in HAI management remains unclear,” the researchers concluded.
The authors reported that they had no conflicts of interest.
SOURCE: Hagel S et al. Clin Microbiol Infect. doi: 10.1016/j.cmi.2018.07.010].
A hospital-wide infection control program (ICP) was found to be associated with reduced health care-associated severe sepsis/septic shock or death in the ICU, but it was not clear whether this decrease was a consequence of the ICP or because of a concomitant improvement in HAI case management, according to a the results of a prospective analysis.
In addition, there was no significant decrease in overall HAIs seen despite implementation of the program, according to the report published online in Clinical Microbiology and Infection (doi: 10.1016/j.cmi.2018.07.010), according to Stefan Hagel, MD, of the Institute for Infectious Diseases and Infection Control, Jena (Germany) University Hospital, and his colleagues.
They assessed two surveillance periods (September 2011 to August 2012 and May 2013 to August 2014). The ICP started in October 2012, and included hand-hygiene promotion and bundle implementation for common HAIs.
The data were analyzed by segmented mixed-effects Poisson regression and multi-state models and reported as adjusted incidence rate ratios (aIRR) and 50 adjusted hazard ratios (aHR) with 95% confidence intervals (CI).
In the first period, 62,154 patients were under surveillance, with 1,568 HAIs identified in 1,170 patients (4.3/100 admissions) and 2,336 HAIs identified in 1,711 patients (4.9/100 admissions) in the second surveillance period. No differences were found in the overall HAI incidence rates between the periods in the general wards and ICUs. There was only a slight decline in the incidence rate of HAIs in the ICUs (aIRR 0.98 [0.97, 1.00] per 1-week increment), compared with the general wards (aIRR 1.01 [1.00, 1.02]).
However, a reduction in severe HAIs (aIRR 0.13 [0.05, 0.32]) and a lower probability of HAI-associated in-hospital deaths (aHR 0.56 [0.31, 0.99]) were observed in the second period in the ICUs.
In attempting to explain the variance seen between the results for general wards and the ICU, an analysis of alcohol-based handrub solution consumption as a marker of hand-hygiene behavior indicated that a remarkable increase in consumption occurred in the ICUs while a less pronounced increase occurred in the general wards. “This finding might explain the observed decline in the HAI incidence after starting the campaign in the ICUs, which was not observed on the general wards.” Dr. Hagel and his colleagues suggested.
The authors discussed how several confounding factors that influenced the incidence of HAIs needed to be considered. As a consequence of the improvement in HAI management, the number of collected blood culture sets nearly doubled hospital-wide from 13,126 to 25,805 per year between 2011 and 2014, which likely undermined the study objective, they stated. The increase in cultures may have impacted the number of overall HAIs found.
“Although the primary aim of the study of reducing the overall incidence of HAIs was not achieved, the study demonstrated a decline of severe HAIs in patients in ICUs in the second surveillance period. Whether this result was a consequence of the ICP or a general improvement in HAI management remains unclear,” the researchers concluded.
The authors reported that they had no conflicts of interest.
SOURCE: Hagel S et al. Clin Microbiol Infect. doi: 10.1016/j.cmi.2018.07.010].
FROM CLINICAL MICROBIOLOGY AND INFECTION
Key clinical point: Hand hygiene was the key factor associated with a decrease in severe HAIs.
Major finding: A reduction in severe HAIs (aIRR 0.13) and a lower probability of HAI-associated in-hospital deaths (aHR 0.56]) were observed.
Study details: A prospective database analysis of more nearly 65,000 hospitalized patients.
Disclosures: The authors reported that they had no conflicts of interest.
Source: Hagel S et al. Clin Microbiol Infect. doi: 10.1016/j.cmi.2018.07.010.
Declining lung function linked to heart failure, stroke
Rapid declines in spirometric measures of lung function were associated with higher risks of cardiovascular disease, according to a recent analysis of a large, prospective cohort study.
Rapid declines in forced expiratory volume in 1 second (FEV1) were associated with increased incidence of heart failure, stroke, and death in the analysis of the ARIC (Atherosclerosis Risk in Communities) study.
The risk of incident heart failure among FEV1 rapid decliners was particularly high, with a fourfold increase within 12 months. That suggests clinicians should carefully consider incipient heart failure in patients with rapid changes in FEV1, investigators reported in the Journal of the American College of Cardiology.
Rapid declines in forced vital capacity (FVC) were also associated with higher incidences of heart failure and death in the analysis by Odilson M. Silvestre, MD, of the division of cardiovascular medicine at Brigham and Women’s Hospital, Boston, and colleagues.
The analysis included a total of 10,351 ARIC participants with a mean follow-up of 17 years. All had undergone spirometry at the first study visit between 1987 and 1989, and on the second visit between 1990 and 1992.
One-quarter of participants were classified as FEV1 rapid decliners, defined by an FEV1 decrease of at least 1.9% per year. Likewise, one-quarter of participants were classified as FVC rapid decliners, based on an FVC decrease of at least 2.1%.
Rapid decline in FEV1 was associated with a higher risk of incident heart failure (hazard ratio, 1.17; 95% confidence interval, 1.04-1.33; P = .010), and was most prognostic in the first year of follow-up (HR, 4.22; 95% CI, 1.34-13.26; P = .01), investigators said.
Rapid decline in FVC was likewise associated with a greater heart failure risk (HR, 1.27; 95% CI, 1.12-1.44; P less than .001).
Increased heart failure risk persisted after excluding patients with incident coronary heart disease in both the FEV1 and FVC rapid decliners, the investigators said.
A rapid decline in FEV1 was also associated with a higher stroke risk (HR, 1.25; 95% CI, 1.04-1.50; P = .015).
FEV1 rapid decliners had a higher overall rate of incident cardiovascular disease than those without rapid decline, even after adjustment for baseline variables such as age, sex, race, body mass index, and heart rate (HR, 1.15; 95% CI, 1.04-1.26; P = .004), and FVC rapid decliners likewise had a 19% greater risk of the composite endpoint (HR, 1.19; 95% CI, 1.08-1.32; P less than .001).
The National Heart, Lung, and Blood Institute, the American Heart Association, and other sources supported the study. Dr. Silvestre reported having no relevant conflicts.
SOURCE: Silvestre OM et al. J Am Coll Cardiol. 2018 Sep 4;72(10):1109-22.
Cardiologists and pulmonologists should closely collaborate to better identify the relationship between lung function decline and early cardiovascular disease detection, said the authors of an editorial accompanying the study.
Improved collaboration would help manage these conditions, stopping early disease progression and preventing overt cardiovascular disease, wrote Daniel A. Duprez, MD, PhD, and David R. Jacobs Jr., PhD.
“The resulting symptomatic and prognostic benefits outweigh those attainable by treating either condition alone,” noted Dr. Duprez and Dr. Jacobs.
The study by Dr. Silvestre and coauthors showed that rapid declines in forced expiratory volume in one second (FEV1) and forced vital capacity (FVC) among participants in the ARIC (Atherosclerosis Risk in Communities) study were associated with a higher incidence of composite cardiovascular disease, heart failure, and total death.
The association between FEV1 and new heart failure was substantially impacted by 22 heart failure events occurring in the first year, with a hazard ratio of 4.22 for predicting those cases, the editorial authors noted.
“We suggest that this association with early cases could be the result of reversed causality, reflecting heart failure undiagnosed at the second spirometry test,” they explained (J Am Coll Cardiol. 2018 Sep 4;72[10]:1123-5).
Dr. Duprez is with the cardiovascular division of the University of Minnesota, Minneapolis, and Dr. Jacobs is with the division of epidemiology and community health at the University of Minnesota, Minneapolis. Dr. Duprez and Dr. Jacobs reported they had no relevant disclosures.
Cardiologists and pulmonologists should closely collaborate to better identify the relationship between lung function decline and early cardiovascular disease detection, said the authors of an editorial accompanying the study.
Improved collaboration would help manage these conditions, stopping early disease progression and preventing overt cardiovascular disease, wrote Daniel A. Duprez, MD, PhD, and David R. Jacobs Jr., PhD.
“The resulting symptomatic and prognostic benefits outweigh those attainable by treating either condition alone,” noted Dr. Duprez and Dr. Jacobs.
The study by Dr. Silvestre and coauthors showed that rapid declines in forced expiratory volume in one second (FEV1) and forced vital capacity (FVC) among participants in the ARIC (Atherosclerosis Risk in Communities) study were associated with a higher incidence of composite cardiovascular disease, heart failure, and total death.
The association between FEV1 and new heart failure was substantially impacted by 22 heart failure events occurring in the first year, with a hazard ratio of 4.22 for predicting those cases, the editorial authors noted.
“We suggest that this association with early cases could be the result of reversed causality, reflecting heart failure undiagnosed at the second spirometry test,” they explained (J Am Coll Cardiol. 2018 Sep 4;72[10]:1123-5).
Dr. Duprez is with the cardiovascular division of the University of Minnesota, Minneapolis, and Dr. Jacobs is with the division of epidemiology and community health at the University of Minnesota, Minneapolis. Dr. Duprez and Dr. Jacobs reported they had no relevant disclosures.
Cardiologists and pulmonologists should closely collaborate to better identify the relationship between lung function decline and early cardiovascular disease detection, said the authors of an editorial accompanying the study.
Improved collaboration would help manage these conditions, stopping early disease progression and preventing overt cardiovascular disease, wrote Daniel A. Duprez, MD, PhD, and David R. Jacobs Jr., PhD.
“The resulting symptomatic and prognostic benefits outweigh those attainable by treating either condition alone,” noted Dr. Duprez and Dr. Jacobs.
The study by Dr. Silvestre and coauthors showed that rapid declines in forced expiratory volume in one second (FEV1) and forced vital capacity (FVC) among participants in the ARIC (Atherosclerosis Risk in Communities) study were associated with a higher incidence of composite cardiovascular disease, heart failure, and total death.
The association between FEV1 and new heart failure was substantially impacted by 22 heart failure events occurring in the first year, with a hazard ratio of 4.22 for predicting those cases, the editorial authors noted.
“We suggest that this association with early cases could be the result of reversed causality, reflecting heart failure undiagnosed at the second spirometry test,” they explained (J Am Coll Cardiol. 2018 Sep 4;72[10]:1123-5).
Dr. Duprez is with the cardiovascular division of the University of Minnesota, Minneapolis, and Dr. Jacobs is with the division of epidemiology and community health at the University of Minnesota, Minneapolis. Dr. Duprez and Dr. Jacobs reported they had no relevant disclosures.
Rapid declines in spirometric measures of lung function were associated with higher risks of cardiovascular disease, according to a recent analysis of a large, prospective cohort study.
Rapid declines in forced expiratory volume in 1 second (FEV1) were associated with increased incidence of heart failure, stroke, and death in the analysis of the ARIC (Atherosclerosis Risk in Communities) study.
The risk of incident heart failure among FEV1 rapid decliners was particularly high, with a fourfold increase within 12 months. That suggests clinicians should carefully consider incipient heart failure in patients with rapid changes in FEV1, investigators reported in the Journal of the American College of Cardiology.
Rapid declines in forced vital capacity (FVC) were also associated with higher incidences of heart failure and death in the analysis by Odilson M. Silvestre, MD, of the division of cardiovascular medicine at Brigham and Women’s Hospital, Boston, and colleagues.
The analysis included a total of 10,351 ARIC participants with a mean follow-up of 17 years. All had undergone spirometry at the first study visit between 1987 and 1989, and on the second visit between 1990 and 1992.
One-quarter of participants were classified as FEV1 rapid decliners, defined by an FEV1 decrease of at least 1.9% per year. Likewise, one-quarter of participants were classified as FVC rapid decliners, based on an FVC decrease of at least 2.1%.
Rapid decline in FEV1 was associated with a higher risk of incident heart failure (hazard ratio, 1.17; 95% confidence interval, 1.04-1.33; P = .010), and was most prognostic in the first year of follow-up (HR, 4.22; 95% CI, 1.34-13.26; P = .01), investigators said.
Rapid decline in FVC was likewise associated with a greater heart failure risk (HR, 1.27; 95% CI, 1.12-1.44; P less than .001).
Increased heart failure risk persisted after excluding patients with incident coronary heart disease in both the FEV1 and FVC rapid decliners, the investigators said.
A rapid decline in FEV1 was also associated with a higher stroke risk (HR, 1.25; 95% CI, 1.04-1.50; P = .015).
FEV1 rapid decliners had a higher overall rate of incident cardiovascular disease than those without rapid decline, even after adjustment for baseline variables such as age, sex, race, body mass index, and heart rate (HR, 1.15; 95% CI, 1.04-1.26; P = .004), and FVC rapid decliners likewise had a 19% greater risk of the composite endpoint (HR, 1.19; 95% CI, 1.08-1.32; P less than .001).
The National Heart, Lung, and Blood Institute, the American Heart Association, and other sources supported the study. Dr. Silvestre reported having no relevant conflicts.
SOURCE: Silvestre OM et al. J Am Coll Cardiol. 2018 Sep 4;72(10):1109-22.
Rapid declines in spirometric measures of lung function were associated with higher risks of cardiovascular disease, according to a recent analysis of a large, prospective cohort study.
Rapid declines in forced expiratory volume in 1 second (FEV1) were associated with increased incidence of heart failure, stroke, and death in the analysis of the ARIC (Atherosclerosis Risk in Communities) study.
The risk of incident heart failure among FEV1 rapid decliners was particularly high, with a fourfold increase within 12 months. That suggests clinicians should carefully consider incipient heart failure in patients with rapid changes in FEV1, investigators reported in the Journal of the American College of Cardiology.
Rapid declines in forced vital capacity (FVC) were also associated with higher incidences of heart failure and death in the analysis by Odilson M. Silvestre, MD, of the division of cardiovascular medicine at Brigham and Women’s Hospital, Boston, and colleagues.
The analysis included a total of 10,351 ARIC participants with a mean follow-up of 17 years. All had undergone spirometry at the first study visit between 1987 and 1989, and on the second visit between 1990 and 1992.
One-quarter of participants were classified as FEV1 rapid decliners, defined by an FEV1 decrease of at least 1.9% per year. Likewise, one-quarter of participants were classified as FVC rapid decliners, based on an FVC decrease of at least 2.1%.
Rapid decline in FEV1 was associated with a higher risk of incident heart failure (hazard ratio, 1.17; 95% confidence interval, 1.04-1.33; P = .010), and was most prognostic in the first year of follow-up (HR, 4.22; 95% CI, 1.34-13.26; P = .01), investigators said.
Rapid decline in FVC was likewise associated with a greater heart failure risk (HR, 1.27; 95% CI, 1.12-1.44; P less than .001).
Increased heart failure risk persisted after excluding patients with incident coronary heart disease in both the FEV1 and FVC rapid decliners, the investigators said.
A rapid decline in FEV1 was also associated with a higher stroke risk (HR, 1.25; 95% CI, 1.04-1.50; P = .015).
FEV1 rapid decliners had a higher overall rate of incident cardiovascular disease than those without rapid decline, even after adjustment for baseline variables such as age, sex, race, body mass index, and heart rate (HR, 1.15; 95% CI, 1.04-1.26; P = .004), and FVC rapid decliners likewise had a 19% greater risk of the composite endpoint (HR, 1.19; 95% CI, 1.08-1.32; P less than .001).
The National Heart, Lung, and Blood Institute, the American Heart Association, and other sources supported the study. Dr. Silvestre reported having no relevant conflicts.
SOURCE: Silvestre OM et al. J Am Coll Cardiol. 2018 Sep 4;72(10):1109-22.
FROM THE JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
Key clinical point: Rapid declines in spirometric measures of lung function were associated with higher risks of heart failure, among other adverse cardiovascular outcomes.
Major finding: Rapid decline in forced expiratory volume in 1 second was associated with higher risk of incident heart failure (HR, 1.17; 95% CI, 1.04-1.33; P = .010), and was most prognostic in the first year of follow-up (HR, 4.22; 95% CI, 1.34-13.26; P = .01).
Study details: An analysis including a total of 10,351 participants in a large, prospective cohort study with a mean follow-up of 17 years.
Disclosures: The National Heart, Lung, and Blood Institute, the American Heart Association, and other sources supported the study. Dr. Silvestre reported having no relevant conflicts.
Source: Silvestre OM et al. J Am Coll Cardiol. 2018 Sep 4;72(10):1109-22.
Frailty and risk of postoperative complications
Background: FTR is a quality measure defined as death after a serious, potentially preventable complication. Frailty incorporates different domains including physical performance, gait, mobility, nutritional status, mental health, and cognition. Although there are some studies linking frailty and FTR and postoperative morbidity, the degree and association with low-risk procedures is unclear.
Study design: Retrospective cohort study.
Setting: More than 600 hospitals participating in the American College of Surgeons’ National Surgical Quality Improvement Program database during 2005-2012.
Synopsis: The cohort included 984,550 adult patients who underwent inpatient procedure for general, vascular, thoracic, cardiac, and orthopedic operations. The Risk Analysis Index (RAI) score was used to calculate frailty. The rate of major complications increased as the RAI score was higher for both low-risk and high-risk surgery. For RAI scores less than 10, the rate was 7.4%; for RAI scores 11-20, the rate was 19.8%; for RAI scores 21-30, the rate was 41.1%; and for RAI scores above 40, the rate was 53.6%. Stratifying by the number of complications, significant increases in FTR were observed across the RAI categories for both low-risk and high-risk procedures.
Frailty assessment should be considered a part of the routine perioperative evaluation and should stimulate preoperative interventions aimed at reducing risk for postoperative complications.
Bottom line: This large retrospective study found an association between increasing frailty and both the number of complications and FTR for both low-risk and high-risk surgical procedures.
Citation: Shah R et al. Association of frailty with failure to rescue after low-risk and high-risk inpatient surgery. JAMA Surg. 2018 Mar 21;153(5):e180214.
Dr. Canepa is a hospitalist in the division of hospital medicine at the University of Kentucky, Lexington.
Background: FTR is a quality measure defined as death after a serious, potentially preventable complication. Frailty incorporates different domains including physical performance, gait, mobility, nutritional status, mental health, and cognition. Although there are some studies linking frailty and FTR and postoperative morbidity, the degree and association with low-risk procedures is unclear.
Study design: Retrospective cohort study.
Setting: More than 600 hospitals participating in the American College of Surgeons’ National Surgical Quality Improvement Program database during 2005-2012.
Synopsis: The cohort included 984,550 adult patients who underwent inpatient procedure for general, vascular, thoracic, cardiac, and orthopedic operations. The Risk Analysis Index (RAI) score was used to calculate frailty. The rate of major complications increased as the RAI score was higher for both low-risk and high-risk surgery. For RAI scores less than 10, the rate was 7.4%; for RAI scores 11-20, the rate was 19.8%; for RAI scores 21-30, the rate was 41.1%; and for RAI scores above 40, the rate was 53.6%. Stratifying by the number of complications, significant increases in FTR were observed across the RAI categories for both low-risk and high-risk procedures.
Frailty assessment should be considered a part of the routine perioperative evaluation and should stimulate preoperative interventions aimed at reducing risk for postoperative complications.
Bottom line: This large retrospective study found an association between increasing frailty and both the number of complications and FTR for both low-risk and high-risk surgical procedures.
Citation: Shah R et al. Association of frailty with failure to rescue after low-risk and high-risk inpatient surgery. JAMA Surg. 2018 Mar 21;153(5):e180214.
Dr. Canepa is a hospitalist in the division of hospital medicine at the University of Kentucky, Lexington.
Background: FTR is a quality measure defined as death after a serious, potentially preventable complication. Frailty incorporates different domains including physical performance, gait, mobility, nutritional status, mental health, and cognition. Although there are some studies linking frailty and FTR and postoperative morbidity, the degree and association with low-risk procedures is unclear.
Study design: Retrospective cohort study.
Setting: More than 600 hospitals participating in the American College of Surgeons’ National Surgical Quality Improvement Program database during 2005-2012.
Synopsis: The cohort included 984,550 adult patients who underwent inpatient procedure for general, vascular, thoracic, cardiac, and orthopedic operations. The Risk Analysis Index (RAI) score was used to calculate frailty. The rate of major complications increased as the RAI score was higher for both low-risk and high-risk surgery. For RAI scores less than 10, the rate was 7.4%; for RAI scores 11-20, the rate was 19.8%; for RAI scores 21-30, the rate was 41.1%; and for RAI scores above 40, the rate was 53.6%. Stratifying by the number of complications, significant increases in FTR were observed across the RAI categories for both low-risk and high-risk procedures.
Frailty assessment should be considered a part of the routine perioperative evaluation and should stimulate preoperative interventions aimed at reducing risk for postoperative complications.
Bottom line: This large retrospective study found an association between increasing frailty and both the number of complications and FTR for both low-risk and high-risk surgical procedures.
Citation: Shah R et al. Association of frailty with failure to rescue after low-risk and high-risk inpatient surgery. JAMA Surg. 2018 Mar 21;153(5):e180214.
Dr. Canepa is a hospitalist in the division of hospital medicine at the University of Kentucky, Lexington.
New MI definition aims to better distinguish infarction from injury
MUNICH – The worldwide cardiology community’s newly revised universal definition of an MI refines the way that cardiologists distinguish between myocardial infarction and myocardial injury, said Joseph S. Alpert, MD, one of the two chairs of the definition-writing panel.
“We had three previous definitions, but there is still a lot of confusion [about distinguishing] between injury and infarction. We definitely hope that this fourth definition will further help people distinguish the two and help people determine whether or not a patient has an MI,” said Dr. Alpert following a session at the annual congress of the European Society of Cardiology that introduced some of the key elements of the new revision.
Days before the ESC congress, a task force formed by the European Society of Cardiology, the American College of Cardiology, the American Heart Association, and the World Heart Federation released the Fourth Universal Definition of Myocardial Infarction (2018) (J Am Coll Cardiol. 2018 Aug 24. doi: 10.1016/j.jacc.2018.08.1038), which follows the series of three prior MI definitions that these groups have issued since the first iteration came out in 2007 (J Am Coll Cardiol. 2007;50[22]:2173-95).
The new revision includes 5 “new concepts,” 14 updated concepts, and 6 new sections since the third universal definition from 2012. The change that topped Dr. Alpert’s list of key messages was the need to determine whether a rise in cardiac troponin, a key biomarker of cardiac damage, resulted from infarction or injury.
These two alternative diagnoses mean “a very different outlook for patients. Treatment is different, and their prognosis is different. It’s important to make the distinction,” said Dr. Alpert, professor of medicine at the University of Arizona in Tucson.
The new changes to making an MI diagnosis will likely help drive a couple of important changes in the way U.S. patients with suspected myocardial injury or infarction get assessed, he said in an interview. The first change will be wide uptake of high sensitivity cardiac troponin (hscTn) assays over the next 5 years or so, as the ability to measure this key diagnostic biomarker progresses from its initial Food and Drug Administration approval for the U.S. market in 2017 to “close to 100% of U.S. hospitals using it,” he predicted. A big issue that is currently slowing even quicker adoption of hscTn is that many hospitals, including the one where Dr. Alpert practices, still have laboratory contracts in place that tether them to older troponin-testing technologies and make it economically unfeasible to change until their contracts expire. The contract in place where Dr. Alpert practices runs out in 2019, and soon after that happens he expects to gain the ability to order a hscTn test.
The new, fourth definition says that hscTn is “recommended for routine clinical use,” but routine U.S. use “won’t be immediate because many hospitals will put in hscTn only when their old contract runs out,” he said.
Another practice-changing impact from the fourth definition may be expanded U.S. availability and use of MR imaging, which the fourth definition identified as the most informative and versatile of the several imaging options used to confirm or rule out an MI.
Cardiac MR “provides both functional and tissue characterization. It’s the technique with the most potential,” able to noninvasively identify “both the nature and extent of myocardial damage,” explained Chiara Bucciarelli-Ducci, MD, a cardiologist and imaging specialist at the Bristol (England) Heart Institute. A single cardiac MR scan “gives many answers,” said Dr. Bucciarelli-Ducci, who also served on the fourth definition task force and spoke at the session about the document’s revised imaging recommendations.
“In the setting of acute MI, cardiac MR can also be used to assess the presence and extent of myocardium at risk (myocardial edema), myocardial salvage, microvascular obstruction, intramyocardial hemorrhage, and infarct size, all markers of myocardial injury that have prognostic value,” according to the fourth definition. “In patients with possible acute MI but unobstructed coronary arteries, cardiac MR can help to diagnose alternative conditions such as myocarditis, Takotsubo syndrome, embolic infarction, or MI with spontaneous recanalization.”
“What’s turning out is that, a large number of patients with chest pain have an infection and not an MI, and cardiac MR can distinguish inflammation and myocarditis from infarction. We’re now doing a lot more MRs,” Dr. Alpert said. Although MR capability is not as widely available today as other imaging methods, like echocardiography and CT, over the next 5 years that will likely change, he said. But Dr. Alpert cautioned that not every patient with a suspected MI needs MR assessment. It’s best focused for selected patients with an uncertain diagnosis based on the core indicators of disease: history, ECG, changes in hscTn levels over time, and a chest x-ray. “MR is for when there are questions,” he said. When patients present with classic MI signs and symptoms the diagnosis can depend just on the basics, perhaps supplemented with a more widely available imaging method like echocardiography to look for wall motion abnormalities, he said. “If echo shows good left ventricular function you probably don’t need MR.” he said.
CT coronary angiography (CTCA) is another useful diagnostic tool, and right now is more widely available than MR. CTCA “may be used to diagnose coronary artery disease in patients with an acute coronary syndrome event in the emergency department or chest pain unit, particularly in low- to intermediate-risk patients with normal hscTn at presentation,” said the fourth definition. But Dr. Alpert cited the radiation dose from CT as a limiting factor. “We have patients who get repeat CT scans, and we know that increases their cancer risk. There is no such thing as a totally safe dose of radiation.” Lack of radiation exposure is another feature that makes MR imaging attractive.
Dr. Alpert had no disclosures. Dr. Bucciarelli-Ducci has had a financial relationship with Circle Cardiovascular Imaging.
MUNICH – The worldwide cardiology community’s newly revised universal definition of an MI refines the way that cardiologists distinguish between myocardial infarction and myocardial injury, said Joseph S. Alpert, MD, one of the two chairs of the definition-writing panel.
“We had three previous definitions, but there is still a lot of confusion [about distinguishing] between injury and infarction. We definitely hope that this fourth definition will further help people distinguish the two and help people determine whether or not a patient has an MI,” said Dr. Alpert following a session at the annual congress of the European Society of Cardiology that introduced some of the key elements of the new revision.
Days before the ESC congress, a task force formed by the European Society of Cardiology, the American College of Cardiology, the American Heart Association, and the World Heart Federation released the Fourth Universal Definition of Myocardial Infarction (2018) (J Am Coll Cardiol. 2018 Aug 24. doi: 10.1016/j.jacc.2018.08.1038), which follows the series of three prior MI definitions that these groups have issued since the first iteration came out in 2007 (J Am Coll Cardiol. 2007;50[22]:2173-95).
The new revision includes 5 “new concepts,” 14 updated concepts, and 6 new sections since the third universal definition from 2012. The change that topped Dr. Alpert’s list of key messages was the need to determine whether a rise in cardiac troponin, a key biomarker of cardiac damage, resulted from infarction or injury.
These two alternative diagnoses mean “a very different outlook for patients. Treatment is different, and their prognosis is different. It’s important to make the distinction,” said Dr. Alpert, professor of medicine at the University of Arizona in Tucson.
The new changes to making an MI diagnosis will likely help drive a couple of important changes in the way U.S. patients with suspected myocardial injury or infarction get assessed, he said in an interview. The first change will be wide uptake of high sensitivity cardiac troponin (hscTn) assays over the next 5 years or so, as the ability to measure this key diagnostic biomarker progresses from its initial Food and Drug Administration approval for the U.S. market in 2017 to “close to 100% of U.S. hospitals using it,” he predicted. A big issue that is currently slowing even quicker adoption of hscTn is that many hospitals, including the one where Dr. Alpert practices, still have laboratory contracts in place that tether them to older troponin-testing technologies and make it economically unfeasible to change until their contracts expire. The contract in place where Dr. Alpert practices runs out in 2019, and soon after that happens he expects to gain the ability to order a hscTn test.
The new, fourth definition says that hscTn is “recommended for routine clinical use,” but routine U.S. use “won’t be immediate because many hospitals will put in hscTn only when their old contract runs out,” he said.
Another practice-changing impact from the fourth definition may be expanded U.S. availability and use of MR imaging, which the fourth definition identified as the most informative and versatile of the several imaging options used to confirm or rule out an MI.
Cardiac MR “provides both functional and tissue characterization. It’s the technique with the most potential,” able to noninvasively identify “both the nature and extent of myocardial damage,” explained Chiara Bucciarelli-Ducci, MD, a cardiologist and imaging specialist at the Bristol (England) Heart Institute. A single cardiac MR scan “gives many answers,” said Dr. Bucciarelli-Ducci, who also served on the fourth definition task force and spoke at the session about the document’s revised imaging recommendations.
“In the setting of acute MI, cardiac MR can also be used to assess the presence and extent of myocardium at risk (myocardial edema), myocardial salvage, microvascular obstruction, intramyocardial hemorrhage, and infarct size, all markers of myocardial injury that have prognostic value,” according to the fourth definition. “In patients with possible acute MI but unobstructed coronary arteries, cardiac MR can help to diagnose alternative conditions such as myocarditis, Takotsubo syndrome, embolic infarction, or MI with spontaneous recanalization.”
“What’s turning out is that, a large number of patients with chest pain have an infection and not an MI, and cardiac MR can distinguish inflammation and myocarditis from infarction. We’re now doing a lot more MRs,” Dr. Alpert said. Although MR capability is not as widely available today as other imaging methods, like echocardiography and CT, over the next 5 years that will likely change, he said. But Dr. Alpert cautioned that not every patient with a suspected MI needs MR assessment. It’s best focused for selected patients with an uncertain diagnosis based on the core indicators of disease: history, ECG, changes in hscTn levels over time, and a chest x-ray. “MR is for when there are questions,” he said. When patients present with classic MI signs and symptoms the diagnosis can depend just on the basics, perhaps supplemented with a more widely available imaging method like echocardiography to look for wall motion abnormalities, he said. “If echo shows good left ventricular function you probably don’t need MR.” he said.
CT coronary angiography (CTCA) is another useful diagnostic tool, and right now is more widely available than MR. CTCA “may be used to diagnose coronary artery disease in patients with an acute coronary syndrome event in the emergency department or chest pain unit, particularly in low- to intermediate-risk patients with normal hscTn at presentation,” said the fourth definition. But Dr. Alpert cited the radiation dose from CT as a limiting factor. “We have patients who get repeat CT scans, and we know that increases their cancer risk. There is no such thing as a totally safe dose of radiation.” Lack of radiation exposure is another feature that makes MR imaging attractive.
Dr. Alpert had no disclosures. Dr. Bucciarelli-Ducci has had a financial relationship with Circle Cardiovascular Imaging.
MUNICH – The worldwide cardiology community’s newly revised universal definition of an MI refines the way that cardiologists distinguish between myocardial infarction and myocardial injury, said Joseph S. Alpert, MD, one of the two chairs of the definition-writing panel.
“We had three previous definitions, but there is still a lot of confusion [about distinguishing] between injury and infarction. We definitely hope that this fourth definition will further help people distinguish the two and help people determine whether or not a patient has an MI,” said Dr. Alpert following a session at the annual congress of the European Society of Cardiology that introduced some of the key elements of the new revision.
Days before the ESC congress, a task force formed by the European Society of Cardiology, the American College of Cardiology, the American Heart Association, and the World Heart Federation released the Fourth Universal Definition of Myocardial Infarction (2018) (J Am Coll Cardiol. 2018 Aug 24. doi: 10.1016/j.jacc.2018.08.1038), which follows the series of three prior MI definitions that these groups have issued since the first iteration came out in 2007 (J Am Coll Cardiol. 2007;50[22]:2173-95).
The new revision includes 5 “new concepts,” 14 updated concepts, and 6 new sections since the third universal definition from 2012. The change that topped Dr. Alpert’s list of key messages was the need to determine whether a rise in cardiac troponin, a key biomarker of cardiac damage, resulted from infarction or injury.
These two alternative diagnoses mean “a very different outlook for patients. Treatment is different, and their prognosis is different. It’s important to make the distinction,” said Dr. Alpert, professor of medicine at the University of Arizona in Tucson.
The new changes to making an MI diagnosis will likely help drive a couple of important changes in the way U.S. patients with suspected myocardial injury or infarction get assessed, he said in an interview. The first change will be wide uptake of high sensitivity cardiac troponin (hscTn) assays over the next 5 years or so, as the ability to measure this key diagnostic biomarker progresses from its initial Food and Drug Administration approval for the U.S. market in 2017 to “close to 100% of U.S. hospitals using it,” he predicted. A big issue that is currently slowing even quicker adoption of hscTn is that many hospitals, including the one where Dr. Alpert practices, still have laboratory contracts in place that tether them to older troponin-testing technologies and make it economically unfeasible to change until their contracts expire. The contract in place where Dr. Alpert practices runs out in 2019, and soon after that happens he expects to gain the ability to order a hscTn test.
The new, fourth definition says that hscTn is “recommended for routine clinical use,” but routine U.S. use “won’t be immediate because many hospitals will put in hscTn only when their old contract runs out,” he said.
Another practice-changing impact from the fourth definition may be expanded U.S. availability and use of MR imaging, which the fourth definition identified as the most informative and versatile of the several imaging options used to confirm or rule out an MI.
Cardiac MR “provides both functional and tissue characterization. It’s the technique with the most potential,” able to noninvasively identify “both the nature and extent of myocardial damage,” explained Chiara Bucciarelli-Ducci, MD, a cardiologist and imaging specialist at the Bristol (England) Heart Institute. A single cardiac MR scan “gives many answers,” said Dr. Bucciarelli-Ducci, who also served on the fourth definition task force and spoke at the session about the document’s revised imaging recommendations.
“In the setting of acute MI, cardiac MR can also be used to assess the presence and extent of myocardium at risk (myocardial edema), myocardial salvage, microvascular obstruction, intramyocardial hemorrhage, and infarct size, all markers of myocardial injury that have prognostic value,” according to the fourth definition. “In patients with possible acute MI but unobstructed coronary arteries, cardiac MR can help to diagnose alternative conditions such as myocarditis, Takotsubo syndrome, embolic infarction, or MI with spontaneous recanalization.”
“What’s turning out is that, a large number of patients with chest pain have an infection and not an MI, and cardiac MR can distinguish inflammation and myocarditis from infarction. We’re now doing a lot more MRs,” Dr. Alpert said. Although MR capability is not as widely available today as other imaging methods, like echocardiography and CT, over the next 5 years that will likely change, he said. But Dr. Alpert cautioned that not every patient with a suspected MI needs MR assessment. It’s best focused for selected patients with an uncertain diagnosis based on the core indicators of disease: history, ECG, changes in hscTn levels over time, and a chest x-ray. “MR is for when there are questions,” he said. When patients present with classic MI signs and symptoms the diagnosis can depend just on the basics, perhaps supplemented with a more widely available imaging method like echocardiography to look for wall motion abnormalities, he said. “If echo shows good left ventricular function you probably don’t need MR.” he said.
CT coronary angiography (CTCA) is another useful diagnostic tool, and right now is more widely available than MR. CTCA “may be used to diagnose coronary artery disease in patients with an acute coronary syndrome event in the emergency department or chest pain unit, particularly in low- to intermediate-risk patients with normal hscTn at presentation,” said the fourth definition. But Dr. Alpert cited the radiation dose from CT as a limiting factor. “We have patients who get repeat CT scans, and we know that increases their cancer risk. There is no such thing as a totally safe dose of radiation.” Lack of radiation exposure is another feature that makes MR imaging attractive.
Dr. Alpert had no disclosures. Dr. Bucciarelli-Ducci has had a financial relationship with Circle Cardiovascular Imaging.
REPORTING FROM THE ESC CONGRESS 2018
Negative chest x-ray to rule out pediatric pneumonia
, researchers say.
In a paper published in the September issue of Pediatrics, researchers report the results of a prospective cohort study in 683 children – with a median age of 3.1 years – presenting to emergency departments with suspected pneumonia.
Dr. Susan C. Lipsett, from the division of emergency medicine at Boston Children’s Hospital, and co-authors, wrote that the use of chest radiograph to diagnose pneumonia is thought to have limitations such as its inability to distinguish between bacteria and viral infection, and the possible absence of radiographic presentations early in the disease in patients with dehydration.
In this study, 457 (72.8%) of the children had negative chest radiographs. Of these, 44 were clinically diagnosed with pneumonia, despite the radiograph results, and prescribed antibiotics. These children were more likely to have rales or respiratory distress and less likely to have wheezing compared with the children with negative radiographs who were not initially diagnosed with pneumonia.
Among the remaining 411 children with negative radiographs – who were not prescribed antibiotics – five (1.2%) were subsequently diagnosed with pneumonia within 2 weeks of the radiograph. These five children were all under 3 years of age, but none had been treated with intravenous fluids for dehydration. Only one had radiographic findings of pneumonia on a follow-up visit.
Counting the 44 children diagnosed with pneumonia despite the negative x-ray, chest radiography showed a negative predictive value of 89.2% (95% confidence interval, 85.9%-91.9%). Without those children, the negative predictive value was 98.8% (95% CI, 97%-99.6%).
There were also 113 children (16.5%) with positive chest radiographs, and 72 (10.7%) with equivocal radiographs.
The authors said their results showed that most children with negative chest radiograph would recover fully without needing antibiotics, and argued there was a place for chest radiography in the diagnostic process, to rule out bacterial pneumonia.
“Most clinicians caring for children in the outpatient setting rely on clinical signs and symptoms to determine whether to prescribe an antibiotic for the treatment of pneumonia,” they wrote. “However, given recent literature in which the poor reliability and validity of physical examination findings are cited, reliance on physical examination alone may lead to the overdiagnosis of pneumonia.”
They acknowledged that the lack of a universally accepted gold standard for the diagnosis of pneumonia in children was a significant limitation of the research. In addition, the lack of systematic radiographs meant some children who initially had a negative result and recovered without antibiotics may have shown a positive result on a second scan.
No conflicts of interest were declared.
SOURCE: Lipsett S et al. Pediatrics 2018 142(3):e20180236.
While the results of this study offer reassurance that chest radiograph for suspected pneumonia in children has a high negative predictive value, perhaps a more important question is the accuracy of chest radiography at ruling in bacterial pneumonia – its positive predictive value.
There are reasons to suspect that the positive predictive value of chest radiography may not be as high as the negative predictive value found in this study. This is particularly important given that questions have been raised about the utility of antibiotic therapy in treating Mycoplasma pneumonia infection in children.
Leaving out chest radiography altogether in children with a low clinical suspicion for pneumonia would decreased radi-ation use, cost, and perhaps also unnecessary antibiotic prescriptions.
Matthew D. Garber, MD, is from the department of pediatrics at the University of Florida College of Medicine in Jacksonville and Ricardo A. Quinonez, MD, is from the department of pediatrics at the Baylor College of Medicine and Texas Children’s Hospital. These comments are taken from an accompanying editorial (Pediatrics 2018, 142(3): e20182025. https://doi.org/10.1542/peds.2018-2025). No conflicts of interest were declared.
While the results of this study offer reassurance that chest radiograph for suspected pneumonia in children has a high negative predictive value, perhaps a more important question is the accuracy of chest radiography at ruling in bacterial pneumonia – its positive predictive value.
There are reasons to suspect that the positive predictive value of chest radiography may not be as high as the negative predictive value found in this study. This is particularly important given that questions have been raised about the utility of antibiotic therapy in treating Mycoplasma pneumonia infection in children.
Leaving out chest radiography altogether in children with a low clinical suspicion for pneumonia would decreased radi-ation use, cost, and perhaps also unnecessary antibiotic prescriptions.
Matthew D. Garber, MD, is from the department of pediatrics at the University of Florida College of Medicine in Jacksonville and Ricardo A. Quinonez, MD, is from the department of pediatrics at the Baylor College of Medicine and Texas Children’s Hospital. These comments are taken from an accompanying editorial (Pediatrics 2018, 142(3): e20182025. https://doi.org/10.1542/peds.2018-2025). No conflicts of interest were declared.
While the results of this study offer reassurance that chest radiograph for suspected pneumonia in children has a high negative predictive value, perhaps a more important question is the accuracy of chest radiography at ruling in bacterial pneumonia – its positive predictive value.
There are reasons to suspect that the positive predictive value of chest radiography may not be as high as the negative predictive value found in this study. This is particularly important given that questions have been raised about the utility of antibiotic therapy in treating Mycoplasma pneumonia infection in children.
Leaving out chest radiography altogether in children with a low clinical suspicion for pneumonia would decreased radi-ation use, cost, and perhaps also unnecessary antibiotic prescriptions.
Matthew D. Garber, MD, is from the department of pediatrics at the University of Florida College of Medicine in Jacksonville and Ricardo A. Quinonez, MD, is from the department of pediatrics at the Baylor College of Medicine and Texas Children’s Hospital. These comments are taken from an accompanying editorial (Pediatrics 2018, 142(3): e20182025. https://doi.org/10.1542/peds.2018-2025). No conflicts of interest were declared.
, researchers say.
In a paper published in the September issue of Pediatrics, researchers report the results of a prospective cohort study in 683 children – with a median age of 3.1 years – presenting to emergency departments with suspected pneumonia.
Dr. Susan C. Lipsett, from the division of emergency medicine at Boston Children’s Hospital, and co-authors, wrote that the use of chest radiograph to diagnose pneumonia is thought to have limitations such as its inability to distinguish between bacteria and viral infection, and the possible absence of radiographic presentations early in the disease in patients with dehydration.
In this study, 457 (72.8%) of the children had negative chest radiographs. Of these, 44 were clinically diagnosed with pneumonia, despite the radiograph results, and prescribed antibiotics. These children were more likely to have rales or respiratory distress and less likely to have wheezing compared with the children with negative radiographs who were not initially diagnosed with pneumonia.
Among the remaining 411 children with negative radiographs – who were not prescribed antibiotics – five (1.2%) were subsequently diagnosed with pneumonia within 2 weeks of the radiograph. These five children were all under 3 years of age, but none had been treated with intravenous fluids for dehydration. Only one had radiographic findings of pneumonia on a follow-up visit.
Counting the 44 children diagnosed with pneumonia despite the negative x-ray, chest radiography showed a negative predictive value of 89.2% (95% confidence interval, 85.9%-91.9%). Without those children, the negative predictive value was 98.8% (95% CI, 97%-99.6%).
There were also 113 children (16.5%) with positive chest radiographs, and 72 (10.7%) with equivocal radiographs.
The authors said their results showed that most children with negative chest radiograph would recover fully without needing antibiotics, and argued there was a place for chest radiography in the diagnostic process, to rule out bacterial pneumonia.
“Most clinicians caring for children in the outpatient setting rely on clinical signs and symptoms to determine whether to prescribe an antibiotic for the treatment of pneumonia,” they wrote. “However, given recent literature in which the poor reliability and validity of physical examination findings are cited, reliance on physical examination alone may lead to the overdiagnosis of pneumonia.”
They acknowledged that the lack of a universally accepted gold standard for the diagnosis of pneumonia in children was a significant limitation of the research. In addition, the lack of systematic radiographs meant some children who initially had a negative result and recovered without antibiotics may have shown a positive result on a second scan.
No conflicts of interest were declared.
SOURCE: Lipsett S et al. Pediatrics 2018 142(3):e20180236.
, researchers say.
In a paper published in the September issue of Pediatrics, researchers report the results of a prospective cohort study in 683 children – with a median age of 3.1 years – presenting to emergency departments with suspected pneumonia.
Dr. Susan C. Lipsett, from the division of emergency medicine at Boston Children’s Hospital, and co-authors, wrote that the use of chest radiograph to diagnose pneumonia is thought to have limitations such as its inability to distinguish between bacteria and viral infection, and the possible absence of radiographic presentations early in the disease in patients with dehydration.
In this study, 457 (72.8%) of the children had negative chest radiographs. Of these, 44 were clinically diagnosed with pneumonia, despite the radiograph results, and prescribed antibiotics. These children were more likely to have rales or respiratory distress and less likely to have wheezing compared with the children with negative radiographs who were not initially diagnosed with pneumonia.
Among the remaining 411 children with negative radiographs – who were not prescribed antibiotics – five (1.2%) were subsequently diagnosed with pneumonia within 2 weeks of the radiograph. These five children were all under 3 years of age, but none had been treated with intravenous fluids for dehydration. Only one had radiographic findings of pneumonia on a follow-up visit.
Counting the 44 children diagnosed with pneumonia despite the negative x-ray, chest radiography showed a negative predictive value of 89.2% (95% confidence interval, 85.9%-91.9%). Without those children, the negative predictive value was 98.8% (95% CI, 97%-99.6%).
There were also 113 children (16.5%) with positive chest radiographs, and 72 (10.7%) with equivocal radiographs.
The authors said their results showed that most children with negative chest radiograph would recover fully without needing antibiotics, and argued there was a place for chest radiography in the diagnostic process, to rule out bacterial pneumonia.
“Most clinicians caring for children in the outpatient setting rely on clinical signs and symptoms to determine whether to prescribe an antibiotic for the treatment of pneumonia,” they wrote. “However, given recent literature in which the poor reliability and validity of physical examination findings are cited, reliance on physical examination alone may lead to the overdiagnosis of pneumonia.”
They acknowledged that the lack of a universally accepted gold standard for the diagnosis of pneumonia in children was a significant limitation of the research. In addition, the lack of systematic radiographs meant some children who initially had a negative result and recovered without antibiotics may have shown a positive result on a second scan.
No conflicts of interest were declared.
SOURCE: Lipsett S et al. Pediatrics 2018 142(3):e20180236.
FROM PEDIATRICS
Key clinical point: Negative chest radiograph can rule out pneumonia in children.
Major finding: Chest radiograph has a negative predictive value of 89.2% in children with suspected pneumonia.
Study details: Prospective cohort study in 683 children with suspected pneumonia.
Disclosures: No conflicts of interest were declared.
Source: Lipsett S et al. Pediatrics 2018 142(3):e20180236. https://doi.org/10.1542/peds.2018-0236.