Pulmonology

Nontuberculous Mycobacterium (NTM) is a ubiquitous organism known to cause a variety of infections in susceptible hosts; however, pulmonary infection is the most common. Mycobacterium avium complex (MAC) is the most prevalent cause of NTM-related pulmonary disease (NTM-PD) and is associated with underlying structural lung disease, such as chronic obstructive pulmonary disease (COPD) and noncystic fibrosis bronchiectasis.^1-3

Diagnosis of NTM-PD requires (1) symptoms or radiographic abnormality; and (2) at least 2 sputum cultures positive with the same organism or at least 1 positive culture result on bronchoscopy (wash, lavage, or biopsy).¹ Notably, the natural history of untreated NTM-PD varies, though even mild disease may progress substantially.^4-6 Progressive disease is more likely to occur in those with a positive smear or more extensive radiographic findings at the initial diagnosis.⁷ A nationwide Medicare-based study showed that patients with NTM-PD had a higher rate of all-cause mortality than did patients without NTM-PD.⁸ In a study of 123 patients from Taiwan with MAC-PD, lack of treatment was an independent predictor of mortality.⁹ Given the risk of progressive morbidity and mortality, recent guidelines recommend initiation of a susceptibility driven, macrolide-based, 3-drug treatment regimen over watchful waiting.¹⁰

MAC-PD is increasingly recognized among US veterans.^11,12 The Jesse Brown Veterans Affairs Medical Center (JBVAMC) in south/west Chicago serves a large, predominantly Black male population of veterans many of whom are socioeconomically underresourced, and half are aged ≥ 65 years. We observed that initiation of guideline-directed therapy in veterans with MAC-PD at JBVAMC varied among health care professionals (HCPs) in the pulmonary clinic. Therefore, the purpose of this retrospective study was to describe and compare the characteristics of veterans without HIV were diagnosed with MAC-PD and managed at JBVAMC.

Methods

The hospital microbiology department identified veterans diagnosed with NTM at JBVAMC between October 2008 and July 2019. Veterans included in the study were considered to have MAC-PD per American Thoracic Society (ATS)/Infectious Diseases Society of America (ISDA) guidelines and those diagnosed with HIV were excluded from analysis. The electronic health record (EHR) was queried for pertinent demographics, smoking history, comorbidities, and symptoms at the time of a positive mycobacterial culture. Computed tomography (CT) and pulmonary function tests (PFTs) performed within 1 year of diagnosis were included. PFTs were assessed in accordance with Global Initiative for Obstructive Lung Disease (GOLD) criteria, with normal forced expiratory volume in 1 second (FEV₁) and forced vital capacity (FVC) values defined as ≥ 80% and a normal FEV₁/FVC ratio defined as ≥ 70. The diffusion capacity of lung for carbon monoxide (DLCO) was assessed per 2017 European Respiratory Society (ERS) technical standards and was considered reduced if below the lower limit of normal.¹³ Information regarding treatment decisions, initiation, and cessation were collected. All-cause mortality was recorded if available in the EHR at the time of data collection.

Statistical analysis was performed using Mann-Whitney U and Fisher exact tests where appropriate. P < .05 was considered statistically significant. The study was approved by the JBVAMC Institutional Review Board.

Results

We identified 43 veterans who had a positive culture for MAC; however, only 19 veterans met the diagnostic criteria for MAC-PD and were included in the study (Table). The cohort included predominantly Black and male veterans with a median age of 74 years at time of diagnosis (range, 45-92). Sixteen veterans had underlying lung disease (84.2%), and 16 (84.2%) were current or former smokers. Common comorbidities included COPD, obstructive sleep apnea, gastroesophageal reflux disease, and lung cancer. Respiratory symptoms were reported in 17 veterans (89.5%), 15 (78.9%) had a chronic cough, and 10 (52.6%) had dyspnea. Fifteen veterans had a chest CT scan within 1 year of diagnosis: A nodular and tree-in-bud pattern was most commonly found in 13 (86.7%) of veterans. Thirteen veterans had PFTs within 1 year of MAC-PD diagnosis, of whom 6 had a restrictive pattern with percent predicted FVC < 80%, and 9 had evidence of obstruction with FEV₁/FVC < 70. DLCO was below the lower limit of normal in 18 veterans. Finally, 6 veterans were deceased at the time of the study.

Of the 19 veterans, guideline-directed, combination antimycobacterial therapy for MAC-PD was initiated in only 10 (52.6%) patients due to presence of symptoms and/or imaging abnormalities. Treatment was deferred due to improved symptoms, concern for adverse events (AEs), or lost to follow-up. Five veterans stopped treatment prematurely due to AEs, lost to follow-up, or all-cause mortality. Assessment of differences between treated and untreated groups revealed no significant difference in race, sex, age, body mass index (BMI), symptom presence, or chest CT abnormalities. There was no statistically significant difference in all-cause mortality (40% and 22.2% in treated and untreated group, respectively).

To further understand the differences of this cohort, the 13 veterans alive at time of the study were compared with the 6 who had since died of all-cause mortality. No statistically significant differences were found.

Discussion

Consistent with previous reports in the literature, veterans in our cohort were predominantly current or former smoking males with underlying COPD and bronchiectasis.^1-3,11,12 Chest CT findings varied: Most veterans presented not only with nodules and tree-in-bud opacities, but also a high frequency of fibrosis and emphysema. PFTs revealed a variety of obstruction and restrictive patterns, and most veterans had a reduced DLCO, though it is unclear whether this is reflective of underlying emphysema, fibrosis, or an alternative cardiopulmonary disease.^13,14

While underlying structural lung disease may have been a risk factor for MAC-PD in this cohort, the contribution of environmental and domiciliary factors in metropolitan Chicago neighborhoods is unknown. JBVAMC serves an underresourced population who live in the west and south Chicago neighborhoods. Household factors, ambient and indoor air pollution, and potential contamination of the water supply and surface soil may contribute to the prevalence of MAC-PD in this group.^15-19 Further studies are warranted to characterize MAC-PD and its treatment in veterans without HIV who reside in underresourced urban communities in the US.

Recent ATS, European Society of Clinical Microbiology and Infectious Diseases, and IDSA guidelines recommend combination antimycobacterial therapy for patients who meet clinical, radiographic, and microbiologic criteria for the diagnosis of MAC-PD.¹⁰ Patients who meet these diagnostic criteria, particularly patients with smear positivity or fibrocavitary disease, should be treated because of risk of unfavorable outcomes.^15,20-22 However, we found that the initiation of guideline-recommended antimycobacterial therapy in veterans without HIV with MAC-PD were inconsistent among HCPs. The reasons underlying this phenomenon were not apparent beyond cited reasons for treatment initiation or deference. Despite this inconsistency, there was no clear difference in age, BMI, symptom burden, radiographic abnormality, or all-cause mortality between treatment groups. Existing studies support slow but substantial progression of untreated MAC-PD, and while treatment prevents deterioration of the disease, it does not prevent progression of bronchiectasis.⁶ The natural history of MAC-PD in this veteran cohort has yet to be fully elucidated. Furthermore, the 50% treatment dropout rate was higher than previously reported rates (11-33%).⁵ However, the small number of veterans in this study precludes meaningful comparison with similar reports in the literature.

We did note a relatively high all-cause mortality in this cohort (n = 6, 32%); however, this rate is comparable to the all-cause mortality rate of 27% observed in a 2018 meta-analysis of 9035 patients with MAC-PD.²³ Although there was no major difference in those deceased and those alive at the time of data collection in our study, previously described predictors of mortality included male sex, advanced age, presence of fibrocavitary disease, decreased FVC, and presence of comorbidities.^8,23 Larger prospective studies evaluating veterans with MAC-PD are needed to further evaluate contributors to mortality in veterans with MAC-PD.

Limitations

The limitations of this small, single-center, retrospective study prevent a robust, generalizable comparison between groups. Further studies are warranted to characterize MAC-PD and its treatment in veterans without HIV who reside in underresourced urban communities in the US.^24-26

Conclusions

These data suggest that clinical, imaging, and treatment attributes of MAC-PD in veterans without HIV who reside in metropolitan Chicago are heterogeneous and are associated with a relatively high mortality rate. Although there was no difference in the attributes or outcomes of veterans who did and did not initiate treatment despite current recommendations, further studies are needed to better explore these relationships.

Nontuberculous Mycobacterium (NTM) is a ubiquitous organism known to cause a variety of infections in susceptible hosts; however, pulmonary infection is the most common. Mycobacterium avium complex (MAC) is the most prevalent cause of NTM-related pulmonary disease (NTM-PD) and is associated with underlying structural lung disease, such as chronic obstructive pulmonary disease (COPD) and noncystic fibrosis bronchiectasis.^1-3

Diagnosis of NTM-PD requires (1) symptoms or radiographic abnormality; and (2) at least 2 sputum cultures positive with the same organism or at least 1 positive culture result on bronchoscopy (wash, lavage, or biopsy).¹ Notably, the natural history of untreated NTM-PD varies, though even mild disease may progress substantially.^4-6 Progressive disease is more likely to occur in those with a positive smear or more extensive radiographic findings at the initial diagnosis.⁷ A nationwide Medicare-based study showed that patients with NTM-PD had a higher rate of all-cause mortality than did patients without NTM-PD.⁸ In a study of 123 patients from Taiwan with MAC-PD, lack of treatment was an independent predictor of mortality.⁹ Given the risk of progressive morbidity and mortality, recent guidelines recommend initiation of a susceptibility driven, macrolide-based, 3-drug treatment regimen over watchful waiting.¹⁰

MAC-PD is increasingly recognized among US veterans.^11,12 The Jesse Brown Veterans Affairs Medical Center (JBVAMC) in south/west Chicago serves a large, predominantly Black male population of veterans many of whom are socioeconomically underresourced, and half are aged ≥ 65 years. We observed that initiation of guideline-directed therapy in veterans with MAC-PD at JBVAMC varied among health care professionals (HCPs) in the pulmonary clinic. Therefore, the purpose of this retrospective study was to describe and compare the characteristics of veterans without HIV were diagnosed with MAC-PD and managed at JBVAMC.

Methods

The hospital microbiology department identified veterans diagnosed with NTM at JBVAMC between October 2008 and July 2019. Veterans included in the study were considered to have MAC-PD per American Thoracic Society (ATS)/Infectious Diseases Society of America (ISDA) guidelines and those diagnosed with HIV were excluded from analysis. The electronic health record (EHR) was queried for pertinent demographics, smoking history, comorbidities, and symptoms at the time of a positive mycobacterial culture. Computed tomography (CT) and pulmonary function tests (PFTs) performed within 1 year of diagnosis were included. PFTs were assessed in accordance with Global Initiative for Obstructive Lung Disease (GOLD) criteria, with normal forced expiratory volume in 1 second (FEV₁) and forced vital capacity (FVC) values defined as ≥ 80% and a normal FEV₁/FVC ratio defined as ≥ 70. The diffusion capacity of lung for carbon monoxide (DLCO) was assessed per 2017 European Respiratory Society (ERS) technical standards and was considered reduced if below the lower limit of normal.¹³ Information regarding treatment decisions, initiation, and cessation were collected. All-cause mortality was recorded if available in the EHR at the time of data collection.

Statistical analysis was performed using Mann-Whitney U and Fisher exact tests where appropriate. P < .05 was considered statistically significant. The study was approved by the JBVAMC Institutional Review Board.

Results

We identified 43 veterans who had a positive culture for MAC; however, only 19 veterans met the diagnostic criteria for MAC-PD and were included in the study (Table). The cohort included predominantly Black and male veterans with a median age of 74 years at time of diagnosis (range, 45-92). Sixteen veterans had underlying lung disease (84.2%), and 16 (84.2%) were current or former smokers. Common comorbidities included COPD, obstructive sleep apnea, gastroesophageal reflux disease, and lung cancer. Respiratory symptoms were reported in 17 veterans (89.5%), 15 (78.9%) had a chronic cough, and 10 (52.6%) had dyspnea. Fifteen veterans had a chest CT scan within 1 year of diagnosis: A nodular and tree-in-bud pattern was most commonly found in 13 (86.7%) of veterans. Thirteen veterans had PFTs within 1 year of MAC-PD diagnosis, of whom 6 had a restrictive pattern with percent predicted FVC < 80%, and 9 had evidence of obstruction with FEV₁/FVC < 70. DLCO was below the lower limit of normal in 18 veterans. Finally, 6 veterans were deceased at the time of the study.

Of the 19 veterans, guideline-directed, combination antimycobacterial therapy for MAC-PD was initiated in only 10 (52.6%) patients due to presence of symptoms and/or imaging abnormalities. Treatment was deferred due to improved symptoms, concern for adverse events (AEs), or lost to follow-up. Five veterans stopped treatment prematurely due to AEs, lost to follow-up, or all-cause mortality. Assessment of differences between treated and untreated groups revealed no significant difference in race, sex, age, body mass index (BMI), symptom presence, or chest CT abnormalities. There was no statistically significant difference in all-cause mortality (40% and 22.2% in treated and untreated group, respectively).

To further understand the differences of this cohort, the 13 veterans alive at time of the study were compared with the 6 who had since died of all-cause mortality. No statistically significant differences were found.

Discussion

Consistent with previous reports in the literature, veterans in our cohort were predominantly current or former smoking males with underlying COPD and bronchiectasis.^1-3,11,12 Chest CT findings varied: Most veterans presented not only with nodules and tree-in-bud opacities, but also a high frequency of fibrosis and emphysema. PFTs revealed a variety of obstruction and restrictive patterns, and most veterans had a reduced DLCO, though it is unclear whether this is reflective of underlying emphysema, fibrosis, or an alternative cardiopulmonary disease.^13,14

While underlying structural lung disease may have been a risk factor for MAC-PD in this cohort, the contribution of environmental and domiciliary factors in metropolitan Chicago neighborhoods is unknown. JBVAMC serves an underresourced population who live in the west and south Chicago neighborhoods. Household factors, ambient and indoor air pollution, and potential contamination of the water supply and surface soil may contribute to the prevalence of MAC-PD in this group.^15-19 Further studies are warranted to characterize MAC-PD and its treatment in veterans without HIV who reside in underresourced urban communities in the US.

Recent ATS, European Society of Clinical Microbiology and Infectious Diseases, and IDSA guidelines recommend combination antimycobacterial therapy for patients who meet clinical, radiographic, and microbiologic criteria for the diagnosis of MAC-PD.¹⁰ Patients who meet these diagnostic criteria, particularly patients with smear positivity or fibrocavitary disease, should be treated because of risk of unfavorable outcomes.^15,20-22 However, we found that the initiation of guideline-recommended antimycobacterial therapy in veterans without HIV with MAC-PD were inconsistent among HCPs. The reasons underlying this phenomenon were not apparent beyond cited reasons for treatment initiation or deference. Despite this inconsistency, there was no clear difference in age, BMI, symptom burden, radiographic abnormality, or all-cause mortality between treatment groups. Existing studies support slow but substantial progression of untreated MAC-PD, and while treatment prevents deterioration of the disease, it does not prevent progression of bronchiectasis.⁶ The natural history of MAC-PD in this veteran cohort has yet to be fully elucidated. Furthermore, the 50% treatment dropout rate was higher than previously reported rates (11-33%).⁵ However, the small number of veterans in this study precludes meaningful comparison with similar reports in the literature.

We did note a relatively high all-cause mortality in this cohort (n = 6, 32%); however, this rate is comparable to the all-cause mortality rate of 27% observed in a 2018 meta-analysis of 9035 patients with MAC-PD.²³ Although there was no major difference in those deceased and those alive at the time of data collection in our study, previously described predictors of mortality included male sex, advanced age, presence of fibrocavitary disease, decreased FVC, and presence of comorbidities.^8,23 Larger prospective studies evaluating veterans with MAC-PD are needed to further evaluate contributors to mortality in veterans with MAC-PD.

Limitations

The limitations of this small, single-center, retrospective study prevent a robust, generalizable comparison between groups. Further studies are warranted to characterize MAC-PD and its treatment in veterans without HIV who reside in underresourced urban communities in the US.^24-26

Conclusions

These data suggest that clinical, imaging, and treatment attributes of MAC-PD in veterans without HIV who reside in metropolitan Chicago are heterogeneous and are associated with a relatively high mortality rate. Although there was no difference in the attributes or outcomes of veterans who did and did not initiate treatment despite current recommendations, further studies are needed to better explore these relationships.

Nontuberculous Mycobacterium (NTM) is a ubiquitous organism known to cause a variety of infections in susceptible hosts; however, pulmonary infection is the most common. Mycobacterium avium complex (MAC) is the most prevalent cause of NTM-related pulmonary disease (NTM-PD) and is associated with underlying structural lung disease, such as chronic obstructive pulmonary disease (COPD) and noncystic fibrosis bronchiectasis.^1-3

Diagnosis of NTM-PD requires (1) symptoms or radiographic abnormality; and (2) at least 2 sputum cultures positive with the same organism or at least 1 positive culture result on bronchoscopy (wash, lavage, or biopsy).¹ Notably, the natural history of untreated NTM-PD varies, though even mild disease may progress substantially.^4-6 Progressive disease is more likely to occur in those with a positive smear or more extensive radiographic findings at the initial diagnosis.⁷ A nationwide Medicare-based study showed that patients with NTM-PD had a higher rate of all-cause mortality than did patients without NTM-PD.⁸ In a study of 123 patients from Taiwan with MAC-PD, lack of treatment was an independent predictor of mortality.⁹ Given the risk of progressive morbidity and mortality, recent guidelines recommend initiation of a susceptibility driven, macrolide-based, 3-drug treatment regimen over watchful waiting.¹⁰

MAC-PD is increasingly recognized among US veterans.^11,12 The Jesse Brown Veterans Affairs Medical Center (JBVAMC) in south/west Chicago serves a large, predominantly Black male population of veterans many of whom are socioeconomically underresourced, and half are aged ≥ 65 years. We observed that initiation of guideline-directed therapy in veterans with MAC-PD at JBVAMC varied among health care professionals (HCPs) in the pulmonary clinic. Therefore, the purpose of this retrospective study was to describe and compare the characteristics of veterans without HIV were diagnosed with MAC-PD and managed at JBVAMC.

Methods

The hospital microbiology department identified veterans diagnosed with NTM at JBVAMC between October 2008 and July 2019. Veterans included in the study were considered to have MAC-PD per American Thoracic Society (ATS)/Infectious Diseases Society of America (ISDA) guidelines and those diagnosed with HIV were excluded from analysis. The electronic health record (EHR) was queried for pertinent demographics, smoking history, comorbidities, and symptoms at the time of a positive mycobacterial culture. Computed tomography (CT) and pulmonary function tests (PFTs) performed within 1 year of diagnosis were included. PFTs were assessed in accordance with Global Initiative for Obstructive Lung Disease (GOLD) criteria, with normal forced expiratory volume in 1 second (FEV₁) and forced vital capacity (FVC) values defined as ≥ 80% and a normal FEV₁/FVC ratio defined as ≥ 70. The diffusion capacity of lung for carbon monoxide (DLCO) was assessed per 2017 European Respiratory Society (ERS) technical standards and was considered reduced if below the lower limit of normal.¹³ Information regarding treatment decisions, initiation, and cessation were collected. All-cause mortality was recorded if available in the EHR at the time of data collection.

Statistical analysis was performed using Mann-Whitney U and Fisher exact tests where appropriate. P < .05 was considered statistically significant. The study was approved by the JBVAMC Institutional Review Board.

Results

We identified 43 veterans who had a positive culture for MAC; however, only 19 veterans met the diagnostic criteria for MAC-PD and were included in the study (Table). The cohort included predominantly Black and male veterans with a median age of 74 years at time of diagnosis (range, 45-92). Sixteen veterans had underlying lung disease (84.2%), and 16 (84.2%) were current or former smokers. Common comorbidities included COPD, obstructive sleep apnea, gastroesophageal reflux disease, and lung cancer. Respiratory symptoms were reported in 17 veterans (89.5%), 15 (78.9%) had a chronic cough, and 10 (52.6%) had dyspnea. Fifteen veterans had a chest CT scan within 1 year of diagnosis: A nodular and tree-in-bud pattern was most commonly found in 13 (86.7%) of veterans. Thirteen veterans had PFTs within 1 year of MAC-PD diagnosis, of whom 6 had a restrictive pattern with percent predicted FVC < 80%, and 9 had evidence of obstruction with FEV₁/FVC < 70. DLCO was below the lower limit of normal in 18 veterans. Finally, 6 veterans were deceased at the time of the study.

Of the 19 veterans, guideline-directed, combination antimycobacterial therapy for MAC-PD was initiated in only 10 (52.6%) patients due to presence of symptoms and/or imaging abnormalities. Treatment was deferred due to improved symptoms, concern for adverse events (AEs), or lost to follow-up. Five veterans stopped treatment prematurely due to AEs, lost to follow-up, or all-cause mortality. Assessment of differences between treated and untreated groups revealed no significant difference in race, sex, age, body mass index (BMI), symptom presence, or chest CT abnormalities. There was no statistically significant difference in all-cause mortality (40% and 22.2% in treated and untreated group, respectively).

To further understand the differences of this cohort, the 13 veterans alive at time of the study were compared with the 6 who had since died of all-cause mortality. No statistically significant differences were found.

Discussion

Consistent with previous reports in the literature, veterans in our cohort were predominantly current or former smoking males with underlying COPD and bronchiectasis.^1-3,11,12 Chest CT findings varied: Most veterans presented not only with nodules and tree-in-bud opacities, but also a high frequency of fibrosis and emphysema. PFTs revealed a variety of obstruction and restrictive patterns, and most veterans had a reduced DLCO, though it is unclear whether this is reflective of underlying emphysema, fibrosis, or an alternative cardiopulmonary disease.^13,14

While underlying structural lung disease may have been a risk factor for MAC-PD in this cohort, the contribution of environmental and domiciliary factors in metropolitan Chicago neighborhoods is unknown. JBVAMC serves an underresourced population who live in the west and south Chicago neighborhoods. Household factors, ambient and indoor air pollution, and potential contamination of the water supply and surface soil may contribute to the prevalence of MAC-PD in this group.^15-19 Further studies are warranted to characterize MAC-PD and its treatment in veterans without HIV who reside in underresourced urban communities in the US.

Recent ATS, European Society of Clinical Microbiology and Infectious Diseases, and IDSA guidelines recommend combination antimycobacterial therapy for patients who meet clinical, radiographic, and microbiologic criteria for the diagnosis of MAC-PD.¹⁰ Patients who meet these diagnostic criteria, particularly patients with smear positivity or fibrocavitary disease, should be treated because of risk of unfavorable outcomes.^15,20-22 However, we found that the initiation of guideline-recommended antimycobacterial therapy in veterans without HIV with MAC-PD were inconsistent among HCPs. The reasons underlying this phenomenon were not apparent beyond cited reasons for treatment initiation or deference. Despite this inconsistency, there was no clear difference in age, BMI, symptom burden, radiographic abnormality, or all-cause mortality between treatment groups. Existing studies support slow but substantial progression of untreated MAC-PD, and while treatment prevents deterioration of the disease, it does not prevent progression of bronchiectasis.⁶ The natural history of MAC-PD in this veteran cohort has yet to be fully elucidated. Furthermore, the 50% treatment dropout rate was higher than previously reported rates (11-33%).⁵ However, the small number of veterans in this study precludes meaningful comparison with similar reports in the literature.

We did note a relatively high all-cause mortality in this cohort (n = 6, 32%); however, this rate is comparable to the all-cause mortality rate of 27% observed in a 2018 meta-analysis of 9035 patients with MAC-PD.²³ Although there was no major difference in those deceased and those alive at the time of data collection in our study, previously described predictors of mortality included male sex, advanced age, presence of fibrocavitary disease, decreased FVC, and presence of comorbidities.^8,23 Larger prospective studies evaluating veterans with MAC-PD are needed to further evaluate contributors to mortality in veterans with MAC-PD.

Limitations

The limitations of this small, single-center, retrospective study prevent a robust, generalizable comparison between groups. Further studies are warranted to characterize MAC-PD and its treatment in veterans without HIV who reside in underresourced urban communities in the US.^24-26

Conclusions

These data suggest that clinical, imaging, and treatment attributes of MAC-PD in veterans without HIV who reside in metropolitan Chicago are heterogeneous and are associated with a relatively high mortality rate. Although there was no difference in the attributes or outcomes of veterans who did and did not initiate treatment despite current recommendations, further studies are needed to better explore these relationships.

There are several malignant and nonmalignant conditions that can lead to central airway obstruction (CAO) resulting in lobar collapse. The clinical consequences range from significant dyspnea to respiratory failure. Airway stenting has been used to maintain patency of obstructed airways and relieve symptoms. Before lung cancer screening became more common, approximately 10% of lung cancers at presentation had evidence of CAO.¹

On occasion, an endobronchial malignancy involves the right mainstem (RMS) bronchus near the orifice of the right upper lobe (RUL).² Such strategically located lesions pose a challenge to relieve the RMS obstruction through stenting, securing airway patency into the bronchus intermedius (BI) while avoiding obstruction of the RUL bronchus. The use of endobronchial silicone stents, hybrid covered stents, as well as self-expanding metal stents (SEMS) is an established mode of relieving CAO due to malignant disease.³ We reviewed the literature for approaches that were available before and after the date of the index case reported here.

Case Presentation

A 65-year-old veteran with a history of smoking presented to a US Department of Veterans Affairs Medical Center (VAMC) in 2011, with hemoptysis of 2-week duration. Computed tomography (CT) of the chest revealed a 5.3 × 4.2 × 6.5 cm right mediastinal mass and a 3.0 × 2.8 × 3 cm right hilar mass. Flexible bronchoscopy revealed > 80% occlusion of the RMS and BI due to a medially located mass sparing the RUL orifice, which was patent (Figure 1). Airways distal to the BI were free of disease. Endobronchial biopsies revealed poorly differentiated non-small cell carcinoma of the lung. The patient was referred to the interventional pulmonary service for further airway management.

Under general anesthesia and through a size-9 endotracheal tube, piecemeal debulking of the mass using a cryoprobe was performed. Argon photocoagulation (APC) was used to control bleeding. Balloon bronchoplasty was performed next with pulmonary Boston Scientific CRE balloon at the BI and the RMS bronchus. Under fluoroscopic guidance, a 12 × 30 mm self-expanding hybrid Merit Medical AERO stent was placed distally into the BI. Next, a 14 × 30 mm AERO stent was placed proximally in the RMS bronchus with its distal end telescoped into the smaller distal stent for a distance of 3 to 4 mm at a slanted angle. The overlap was deliberately performed at the level of RUL takeoff. Forcing the distal end of the proximal larger stent into a smaller stent created mechanical stress. The angled alignment channeled this mechanical stress so that the distal end of the proximal stent flared open laterally into the RUL orifice to allow for ventilation (Figure 2). On follow-up 6 months later, all 3 airways remained patent with stents in place (Figure 3).

Literature Review

A literature review revealed multiple approaches to preserving a 3-way patent airway at the takeoff of the RUL (Table). One approach to alleviating such an obstruction favors placing a straight silicone stent from the RMS into the BI, closing off the orifice of the RUL (Figure 4A).⁴ However, this entails sacrificing ventilation of the RUL. An alternative suggested by Peled and colleagues was carried out successfully in 3 patients. After placing a stent to relieve the obstruction, a Nd:YAG laser is used to create a window in the stent in proximity to the RUL orifice, which allows preservation or ventilations to the RUL (Figure 4B).⁵

A third effective approach utilizes silicone Y stents, which are usually employed for relief of obstruction at the level of the main carina.^6,7 Instead of deploying them at the main carina, they would be deployed at the secondary carina, which the RUL makes with the BI, often with customized cutting for adjustment of the stent limbs to the appropriate size of the RUL and BI (Figure 4C). This approach has been successfully used to maintain RUL ventilation.²

A fourth technique involves using an Oki stent, a dedicated bifurcated silicone stent, which was first described in 2013. It is designed for the RMS bronchus around the RUL and BI bifurcation, enabling the stent to maintain airway patency in the right lung without affecting the trachea and carina (Figure 4D). The arm located in the RUL prevents migration.⁸ A fifth technique involves deploying a precisely selected Oki stent specially modified based on a printed 3-dimensional (3D) model of the airways after computer-aided simulation.⁹A sixth technique employs de novo custom printing stents based on 3D models of the tracheobronchial tree constructed based on CT imaging. This approach creates more accurately fitting stents.¹

Discussion

The RUL contributes roughly 5 to 10% of the total oxygenation capacity of the lung.¹⁰ In patients with lung cancer and limited pulmonary reserve, preserving ventilation to the RUL can be clinically important. The chosen method to relieve endobronchial obstruction depends on several variables, including expertise, ability of the patient to undergo general anesthesia for rigid or flexible bronchoscopy, stent availability, and airway anatomy.

This case illustrates a new method to deal with lesions close to the RUL orifice. This maneuver may not be possible with all types of stents. AERO stents are fully covered (Figure 4E). In contrast, stents that are uncovered at both distal ends, such as a Boston Scientific Ultraflex stent, may not be adequate for such a maneuver. Intercalating uncovered ends of SEMS may allow for tumor in-growth through the uncovered metal mesh near the RUL orifice and may paradoxically compromise both the RUL and BI. The diameter of AERO stents is slightly larger at its ends.¹¹ This helps prevent migration, which in this case maintained the crucial overlap of the stents. On the other hand, use of AERO stents may be associated with a higher risk of infection.¹² Precise measurements of the airway diameter are essential given the difference in internal and external stent diameter with silicone stents.

Silicone stents migrate more readily than SEMS and may not be well suited for the procedure we performed. In our case, we wished to maintain ventilation for the RUL; hence, we elected not to bypass it with a silicone stent. We did not have access to a YAG. Moreover, laser carries more energy than APC. Nd:YAG laser has been reported to cause airway fire when used with silicone stents.¹³ Several authors have reported the use of silicone Y stents at the primary or secondary carina to preserve luminal patency.^6,7 Airway anatomy and the angle of the Y may require modification of these stents prior to their use. Cutting stents may compromise their integrity. The bifurcating limb prevents migration which can be a significant concern with the tubular silicone stents. An important consideration for patients in advanced stages of malignancy is that placement of such stent requires undergoing general anesthesia and rigid bronchoscopy, unlike with AERO and metal stents that can be deployed with fiberoptic bronchoscopy under moderate sedation. As such, we did not elect to use a silicone Y stent. Accumulation of secretions or formation of granulation tissue at the orifices can result in recurrence of obstruction.¹⁴

Advances in 3D printing seem to be the future of customized airway stenting. This could help clinicians overcome the challenges of improperly sized stents and distorted airway anatomy. Cases have reported successful use of 3D-printed patient-specific airway prostheses.^15,16 However, their use is not common practice, as there is a limited amount of materials that are flexible, biocompatible, and approved by the US Food and Drug Administration (FDA) for medical use. Infection control is another layer of consideration in such stents. Standardization of materials and regulation of personalized devices and their cleansing protocols is neccesary.¹⁷ At the time of this case, Oki stents and 3D printing were not available in the market. This report provides a viable alternative to use AERO stents for this maneuver.

Conclusions

Patients presenting with malignant CAO near the RUL require a personalized approach to treatment, considering their overall health, functional status, nature and location of CAO, and degree of symptoms. Once a decision is made to stent the airway, careful assessment of airway anatomy, delineation of obstruction, available expertise, and types of stents available needs to be made to preserve ventilation to the nondiseased RUL. Airway stents are expensive and need to be used wisely for palliation and allowing for a quality life while the patient receives more definitive targeted therapy.

Acknowledgments

The authors would like to gratefully acknowledge Dr Jenny Kim, who referred the patient to the interventional service and helped obtain consent for publishing the case.

There are several malignant and nonmalignant conditions that can lead to central airway obstruction (CAO) resulting in lobar collapse. The clinical consequences range from significant dyspnea to respiratory failure. Airway stenting has been used to maintain patency of obstructed airways and relieve symptoms. Before lung cancer screening became more common, approximately 10% of lung cancers at presentation had evidence of CAO.¹

On occasion, an endobronchial malignancy involves the right mainstem (RMS) bronchus near the orifice of the right upper lobe (RUL).² Such strategically located lesions pose a challenge to relieve the RMS obstruction through stenting, securing airway patency into the bronchus intermedius (BI) while avoiding obstruction of the RUL bronchus. The use of endobronchial silicone stents, hybrid covered stents, as well as self-expanding metal stents (SEMS) is an established mode of relieving CAO due to malignant disease.³ We reviewed the literature for approaches that were available before and after the date of the index case reported here.

Case Presentation

A 65-year-old veteran with a history of smoking presented to a US Department of Veterans Affairs Medical Center (VAMC) in 2011, with hemoptysis of 2-week duration. Computed tomography (CT) of the chest revealed a 5.3 × 4.2 × 6.5 cm right mediastinal mass and a 3.0 × 2.8 × 3 cm right hilar mass. Flexible bronchoscopy revealed > 80% occlusion of the RMS and BI due to a medially located mass sparing the RUL orifice, which was patent (Figure 1). Airways distal to the BI were free of disease. Endobronchial biopsies revealed poorly differentiated non-small cell carcinoma of the lung. The patient was referred to the interventional pulmonary service for further airway management.

Under general anesthesia and through a size-9 endotracheal tube, piecemeal debulking of the mass using a cryoprobe was performed. Argon photocoagulation (APC) was used to control bleeding. Balloon bronchoplasty was performed next with pulmonary Boston Scientific CRE balloon at the BI and the RMS bronchus. Under fluoroscopic guidance, a 12 × 30 mm self-expanding hybrid Merit Medical AERO stent was placed distally into the BI. Next, a 14 × 30 mm AERO stent was placed proximally in the RMS bronchus with its distal end telescoped into the smaller distal stent for a distance of 3 to 4 mm at a slanted angle. The overlap was deliberately performed at the level of RUL takeoff. Forcing the distal end of the proximal larger stent into a smaller stent created mechanical stress. The angled alignment channeled this mechanical stress so that the distal end of the proximal stent flared open laterally into the RUL orifice to allow for ventilation (Figure 2). On follow-up 6 months later, all 3 airways remained patent with stents in place (Figure 3).

Literature Review

A literature review revealed multiple approaches to preserving a 3-way patent airway at the takeoff of the RUL (Table). One approach to alleviating such an obstruction favors placing a straight silicone stent from the RMS into the BI, closing off the orifice of the RUL (Figure 4A).⁴ However, this entails sacrificing ventilation of the RUL. An alternative suggested by Peled and colleagues was carried out successfully in 3 patients. After placing a stent to relieve the obstruction, a Nd:YAG laser is used to create a window in the stent in proximity to the RUL orifice, which allows preservation or ventilations to the RUL (Figure 4B).⁵

A third effective approach utilizes silicone Y stents, which are usually employed for relief of obstruction at the level of the main carina.^6,7 Instead of deploying them at the main carina, they would be deployed at the secondary carina, which the RUL makes with the BI, often with customized cutting for adjustment of the stent limbs to the appropriate size of the RUL and BI (Figure 4C). This approach has been successfully used to maintain RUL ventilation.²

A fourth technique involves using an Oki stent, a dedicated bifurcated silicone stent, which was first described in 2013. It is designed for the RMS bronchus around the RUL and BI bifurcation, enabling the stent to maintain airway patency in the right lung without affecting the trachea and carina (Figure 4D). The arm located in the RUL prevents migration.⁸ A fifth technique involves deploying a precisely selected Oki stent specially modified based on a printed 3-dimensional (3D) model of the airways after computer-aided simulation.⁹A sixth technique employs de novo custom printing stents based on 3D models of the tracheobronchial tree constructed based on CT imaging. This approach creates more accurately fitting stents.¹

Discussion

The RUL contributes roughly 5 to 10% of the total oxygenation capacity of the lung.¹⁰ In patients with lung cancer and limited pulmonary reserve, preserving ventilation to the RUL can be clinically important. The chosen method to relieve endobronchial obstruction depends on several variables, including expertise, ability of the patient to undergo general anesthesia for rigid or flexible bronchoscopy, stent availability, and airway anatomy.

This case illustrates a new method to deal with lesions close to the RUL orifice. This maneuver may not be possible with all types of stents. AERO stents are fully covered (Figure 4E). In contrast, stents that are uncovered at both distal ends, such as a Boston Scientific Ultraflex stent, may not be adequate for such a maneuver. Intercalating uncovered ends of SEMS may allow for tumor in-growth through the uncovered metal mesh near the RUL orifice and may paradoxically compromise both the RUL and BI. The diameter of AERO stents is slightly larger at its ends.¹¹ This helps prevent migration, which in this case maintained the crucial overlap of the stents. On the other hand, use of AERO stents may be associated with a higher risk of infection.¹² Precise measurements of the airway diameter are essential given the difference in internal and external stent diameter with silicone stents.

Silicone stents migrate more readily than SEMS and may not be well suited for the procedure we performed. In our case, we wished to maintain ventilation for the RUL; hence, we elected not to bypass it with a silicone stent. We did not have access to a YAG. Moreover, laser carries more energy than APC. Nd:YAG laser has been reported to cause airway fire when used with silicone stents.¹³ Several authors have reported the use of silicone Y stents at the primary or secondary carina to preserve luminal patency.^6,7 Airway anatomy and the angle of the Y may require modification of these stents prior to their use. Cutting stents may compromise their integrity. The bifurcating limb prevents migration which can be a significant concern with the tubular silicone stents. An important consideration for patients in advanced stages of malignancy is that placement of such stent requires undergoing general anesthesia and rigid bronchoscopy, unlike with AERO and metal stents that can be deployed with fiberoptic bronchoscopy under moderate sedation. As such, we did not elect to use a silicone Y stent. Accumulation of secretions or formation of granulation tissue at the orifices can result in recurrence of obstruction.¹⁴

Advances in 3D printing seem to be the future of customized airway stenting. This could help clinicians overcome the challenges of improperly sized stents and distorted airway anatomy. Cases have reported successful use of 3D-printed patient-specific airway prostheses.^15,16 However, their use is not common practice, as there is a limited amount of materials that are flexible, biocompatible, and approved by the US Food and Drug Administration (FDA) for medical use. Infection control is another layer of consideration in such stents. Standardization of materials and regulation of personalized devices and their cleansing protocols is neccesary.¹⁷ At the time of this case, Oki stents and 3D printing were not available in the market. This report provides a viable alternative to use AERO stents for this maneuver.

Conclusions

Patients presenting with malignant CAO near the RUL require a personalized approach to treatment, considering their overall health, functional status, nature and location of CAO, and degree of symptoms. Once a decision is made to stent the airway, careful assessment of airway anatomy, delineation of obstruction, available expertise, and types of stents available needs to be made to preserve ventilation to the nondiseased RUL. Airway stents are expensive and need to be used wisely for palliation and allowing for a quality life while the patient receives more definitive targeted therapy.

Acknowledgments

The authors would like to gratefully acknowledge Dr Jenny Kim, who referred the patient to the interventional service and helped obtain consent for publishing the case.

There are several malignant and nonmalignant conditions that can lead to central airway obstruction (CAO) resulting in lobar collapse. The clinical consequences range from significant dyspnea to respiratory failure. Airway stenting has been used to maintain patency of obstructed airways and relieve symptoms. Before lung cancer screening became more common, approximately 10% of lung cancers at presentation had evidence of CAO.¹

On occasion, an endobronchial malignancy involves the right mainstem (RMS) bronchus near the orifice of the right upper lobe (RUL).² Such strategically located lesions pose a challenge to relieve the RMS obstruction through stenting, securing airway patency into the bronchus intermedius (BI) while avoiding obstruction of the RUL bronchus. The use of endobronchial silicone stents, hybrid covered stents, as well as self-expanding metal stents (SEMS) is an established mode of relieving CAO due to malignant disease.³ We reviewed the literature for approaches that were available before and after the date of the index case reported here.

Case Presentation

A 65-year-old veteran with a history of smoking presented to a US Department of Veterans Affairs Medical Center (VAMC) in 2011, with hemoptysis of 2-week duration. Computed tomography (CT) of the chest revealed a 5.3 × 4.2 × 6.5 cm right mediastinal mass and a 3.0 × 2.8 × 3 cm right hilar mass. Flexible bronchoscopy revealed > 80% occlusion of the RMS and BI due to a medially located mass sparing the RUL orifice, which was patent (Figure 1). Airways distal to the BI were free of disease. Endobronchial biopsies revealed poorly differentiated non-small cell carcinoma of the lung. The patient was referred to the interventional pulmonary service for further airway management.

Under general anesthesia and through a size-9 endotracheal tube, piecemeal debulking of the mass using a cryoprobe was performed. Argon photocoagulation (APC) was used to control bleeding. Balloon bronchoplasty was performed next with pulmonary Boston Scientific CRE balloon at the BI and the RMS bronchus. Under fluoroscopic guidance, a 12 × 30 mm self-expanding hybrid Merit Medical AERO stent was placed distally into the BI. Next, a 14 × 30 mm AERO stent was placed proximally in the RMS bronchus with its distal end telescoped into the smaller distal stent for a distance of 3 to 4 mm at a slanted angle. The overlap was deliberately performed at the level of RUL takeoff. Forcing the distal end of the proximal larger stent into a smaller stent created mechanical stress. The angled alignment channeled this mechanical stress so that the distal end of the proximal stent flared open laterally into the RUL orifice to allow for ventilation (Figure 2). On follow-up 6 months later, all 3 airways remained patent with stents in place (Figure 3).

Literature Review

A literature review revealed multiple approaches to preserving a 3-way patent airway at the takeoff of the RUL (Table). One approach to alleviating such an obstruction favors placing a straight silicone stent from the RMS into the BI, closing off the orifice of the RUL (Figure 4A).⁴ However, this entails sacrificing ventilation of the RUL. An alternative suggested by Peled and colleagues was carried out successfully in 3 patients. After placing a stent to relieve the obstruction, a Nd:YAG laser is used to create a window in the stent in proximity to the RUL orifice, which allows preservation or ventilations to the RUL (Figure 4B).⁵

A third effective approach utilizes silicone Y stents, which are usually employed for relief of obstruction at the level of the main carina.^6,7 Instead of deploying them at the main carina, they would be deployed at the secondary carina, which the RUL makes with the BI, often with customized cutting for adjustment of the stent limbs to the appropriate size of the RUL and BI (Figure 4C). This approach has been successfully used to maintain RUL ventilation.²

A fourth technique involves using an Oki stent, a dedicated bifurcated silicone stent, which was first described in 2013. It is designed for the RMS bronchus around the RUL and BI bifurcation, enabling the stent to maintain airway patency in the right lung without affecting the trachea and carina (Figure 4D). The arm located in the RUL prevents migration.⁸ A fifth technique involves deploying a precisely selected Oki stent specially modified based on a printed 3-dimensional (3D) model of the airways after computer-aided simulation.⁹A sixth technique employs de novo custom printing stents based on 3D models of the tracheobronchial tree constructed based on CT imaging. This approach creates more accurately fitting stents.¹

Discussion

The RUL contributes roughly 5 to 10% of the total oxygenation capacity of the lung.¹⁰ In patients with lung cancer and limited pulmonary reserve, preserving ventilation to the RUL can be clinically important. The chosen method to relieve endobronchial obstruction depends on several variables, including expertise, ability of the patient to undergo general anesthesia for rigid or flexible bronchoscopy, stent availability, and airway anatomy.

This case illustrates a new method to deal with lesions close to the RUL orifice. This maneuver may not be possible with all types of stents. AERO stents are fully covered (Figure 4E). In contrast, stents that are uncovered at both distal ends, such as a Boston Scientific Ultraflex stent, may not be adequate for such a maneuver. Intercalating uncovered ends of SEMS may allow for tumor in-growth through the uncovered metal mesh near the RUL orifice and may paradoxically compromise both the RUL and BI. The diameter of AERO stents is slightly larger at its ends.¹¹ This helps prevent migration, which in this case maintained the crucial overlap of the stents. On the other hand, use of AERO stents may be associated with a higher risk of infection.¹² Precise measurements of the airway diameter are essential given the difference in internal and external stent diameter with silicone stents.

Silicone stents migrate more readily than SEMS and may not be well suited for the procedure we performed. In our case, we wished to maintain ventilation for the RUL; hence, we elected not to bypass it with a silicone stent. We did not have access to a YAG. Moreover, laser carries more energy than APC. Nd:YAG laser has been reported to cause airway fire when used with silicone stents.¹³ Several authors have reported the use of silicone Y stents at the primary or secondary carina to preserve luminal patency.^6,7 Airway anatomy and the angle of the Y may require modification of these stents prior to their use. Cutting stents may compromise their integrity. The bifurcating limb prevents migration which can be a significant concern with the tubular silicone stents. An important consideration for patients in advanced stages of malignancy is that placement of such stent requires undergoing general anesthesia and rigid bronchoscopy, unlike with AERO and metal stents that can be deployed with fiberoptic bronchoscopy under moderate sedation. As such, we did not elect to use a silicone Y stent. Accumulation of secretions or formation of granulation tissue at the orifices can result in recurrence of obstruction.¹⁴

Advances in 3D printing seem to be the future of customized airway stenting. This could help clinicians overcome the challenges of improperly sized stents and distorted airway anatomy. Cases have reported successful use of 3D-printed patient-specific airway prostheses.^15,16 However, their use is not common practice, as there is a limited amount of materials that are flexible, biocompatible, and approved by the US Food and Drug Administration (FDA) for medical use. Infection control is another layer of consideration in such stents. Standardization of materials and regulation of personalized devices and their cleansing protocols is neccesary.¹⁷ At the time of this case, Oki stents and 3D printing were not available in the market. This report provides a viable alternative to use AERO stents for this maneuver.

Conclusions

Patients presenting with malignant CAO near the RUL require a personalized approach to treatment, considering their overall health, functional status, nature and location of CAO, and degree of symptoms. Once a decision is made to stent the airway, careful assessment of airway anatomy, delineation of obstruction, available expertise, and types of stents available needs to be made to preserve ventilation to the nondiseased RUL. Airway stents are expensive and need to be used wisely for palliation and allowing for a quality life while the patient receives more definitive targeted therapy.

Acknowledgments

The authors would like to gratefully acknowledge Dr Jenny Kim, who referred the patient to the interventional service and helped obtain consent for publishing the case.

Infectious disease specialist and humanitarian, Paul Edward Farmer, MD, PhD, who cofounded Partners In Health, died suddenly on Feb. 21. To celebrate his life, this news organization interviewed Serena Koenig, MD, MPH, who met Dr. Farmer when she was an internal medicine resident at Brigham and Women’s Hospital. Dr. Koenig had worked closely with Dr. Farmer ever since they met.

Q. Can you please share one of your best memories of Dr. Farmer?

Dr. Serena Koenig: There are so many memories it is hard to choose. One that was very formative for me occurred during one of my first trips to Haiti, in 2001. Paul and some other incredible colleagues at Partners IN Health (PIH) had started the HIV Equity Initiative, which was one of the first programs in the world to provide free, comprehensive treatment for HIV. This was at the time when millions of people in Africa were dying of HIV and many experts said it was not feasible to treat HIV in a poor country, because it was too complicated and expensive. Paul took me on some home visits with patients who had what he called the Lazarus effect, coming back from death’s door from advanced AIDS to vigorous health on antiretroviral therapy. I had just started working in Haiti with Paul and PIH, and I felt the enormous magnitude of what he was doing.

Q. What aspects of him and his work do you find most admirable?

Dr. Koenig: I most admired Paul’s humanity, his belief that every person matters and has the right to high-quality health care, and his vision of global health equity.

He said: “The idea that some lives matter less is the root of all that is wrong with the world.” Paul lived this philosophy. He has spoken extensively about harms of socialization for scarcity on behalf of those who are poor, leading policy makers to decisions regarding the feasibility of treating some diseases, but not others.

He said in an interview with the Harvard Gazette in 2018: “The most compelling thing to fight socialization for scarcity on behalf of others is health system strengthening. Health systems that integrate prevention and quality care.”

A few weeks ago, I asked him his thoughts about the high-level resources we have invested in some patients who have needed specialty care over the years, and he said: “No way that we should waste all of our emotional energy responding only to those constant, nagging critics that it’s not cost effective, not feasible, not sustainable, not even prudent. Because you know what they would have done if it was their child or family member.”
 

Q. When did you first meet Dr. Farmer, and what inspired you to work with him?

Dr. Koenig: When I was an internal medicine resident at the Brigham, Paul and I bonded over the care of one of my clinic patients who I followed very closely, and who was admitted to his inpatient service.

Like everyone else who has worked with Paul, I was touched by his kindness and warmth.

A couple of years later, he asked me to help him raise money to bring a young man named Wilnot from Haiti to the Brigham for an aortic valve replacement. After we raised the money, he asked me to go to Haiti to help Wilnot get his medical visa and to escort him to Boston.

That short trip to Haiti had an enormous impact on my life. I was shattered to see the poverty that the people of Haiti were enduring – and in a country a short plane flight from Miami.

Shortly after this, Paul asked me to help him find treatment for another patient, a young boy named John, who presented with neck masses that were later diagnosed as nasopharyngeal carcinoma.

It took us some time to make the diagnosis and then to arrange free care at Mass General.

When I returned to Haiti with two PIH colleagues to help John get a visa and escort him back to Boston, we found that John’s condition was much worse. We ended up medically evacuating him to Boston, because he was too sick for a commercial flight.

Tracy Kidder wrote about this heartbreaking experience in the book “Mountains Beyond Mountains.”

Throughout all of these experiences, I was deeply impressed with Paul’s commitment to do whatever it took to provide the best care for patients, as if they were members of his own family. He said “Tout Moun Se Moun” (Haitian Creole for “every person is a person”), and I could tell that he meant it.
 

Q. How did you collaborate with him professionally?

Dr. Koenig: I spent the first few years after residency working with Paul and Partners In Health. Initially, I served as a liaison between PIH in Haiti and the Brigham, bringing several more patients to Boston for care, and arranging specialty surgical trips to Haiti.

Later, when HIV funding became available from the Global Fund for HIV, Tuberculosis, and Malaria, I moved to rural Haiti to provide treatment for patients with HIV and/or TB at one of the first PIH expansion sites. We treated many patients with advanced stages of HIV and/or TB, and many of them recovered remarkably quickly with antiretroviral therapy.

When I returned to Boston to complete an infectious disease fellowship I switched my focus to conducting clinical research to improve HIV and TB treatment outcomes. Paul emailed his mentor and friend, Jean “Bill” Pape, the director of a Haitian NGO called GHESKIO (Haitian Group for the Study of Kaposi’s Sarcoma and Opportunistic Infections), which is an internationally celebrated center of excellence in HIV-related research and clinical care, to ask if I could collaborate with them.

Ever since that time, I have been based between the Brigham’s division of global health equity, which was led by Paul, and GHESKIO.

Paul was very supportive of our research, which aims to improve health service delivery and treatment regimens for HIV and TB.
 

Q. What lessons do you think other physicians can learn from him?

Dr. Koenig: As Joia Mukherjee, chief medical officer of Partners In Health, has said, Paul left us a roadmap. He wrote many books, and he was very eloquent in expressing his philosophy about equity and justice in numerous interviews. This is relevant not only for international sites, but in the United States as well, with our major disparities in health outcomes by race, geography, and socioeconomic status.

No one will be able to replace Paul, but he left us with a vision of what is achievable.

Dr. Koenig is associate physician, Brigham and Women’s Hospital, Boston, with faculty appointments in the divisions of global health equity and infectious diseases. She is also associate professor at Harvard Medical School.

Infectious disease specialist and humanitarian, Paul Edward Farmer, MD, PhD, who cofounded Partners In Health, died suddenly on Feb. 21. To celebrate his life, this news organization interviewed Serena Koenig, MD, MPH, who met Dr. Farmer when she was an internal medicine resident at Brigham and Women’s Hospital. Dr. Koenig had worked closely with Dr. Farmer ever since they met.

Q. Can you please share one of your best memories of Dr. Farmer?

Dr. Serena Koenig: There are so many memories it is hard to choose. One that was very formative for me occurred during one of my first trips to Haiti, in 2001. Paul and some other incredible colleagues at Partners IN Health (PIH) had started the HIV Equity Initiative, which was one of the first programs in the world to provide free, comprehensive treatment for HIV. This was at the time when millions of people in Africa were dying of HIV and many experts said it was not feasible to treat HIV in a poor country, because it was too complicated and expensive. Paul took me on some home visits with patients who had what he called the Lazarus effect, coming back from death’s door from advanced AIDS to vigorous health on antiretroviral therapy. I had just started working in Haiti with Paul and PIH, and I felt the enormous magnitude of what he was doing.

Q. What aspects of him and his work do you find most admirable?

Dr. Koenig: I most admired Paul’s humanity, his belief that every person matters and has the right to high-quality health care, and his vision of global health equity.

He said: “The idea that some lives matter less is the root of all that is wrong with the world.” Paul lived this philosophy. He has spoken extensively about harms of socialization for scarcity on behalf of those who are poor, leading policy makers to decisions regarding the feasibility of treating some diseases, but not others.

He said in an interview with the Harvard Gazette in 2018: “The most compelling thing to fight socialization for scarcity on behalf of others is health system strengthening. Health systems that integrate prevention and quality care.”

A few weeks ago, I asked him his thoughts about the high-level resources we have invested in some patients who have needed specialty care over the years, and he said: “No way that we should waste all of our emotional energy responding only to those constant, nagging critics that it’s not cost effective, not feasible, not sustainable, not even prudent. Because you know what they would have done if it was their child or family member.”
 

Q. When did you first meet Dr. Farmer, and what inspired you to work with him?

Dr. Koenig: When I was an internal medicine resident at the Brigham, Paul and I bonded over the care of one of my clinic patients who I followed very closely, and who was admitted to his inpatient service.

Like everyone else who has worked with Paul, I was touched by his kindness and warmth.

A couple of years later, he asked me to help him raise money to bring a young man named Wilnot from Haiti to the Brigham for an aortic valve replacement. After we raised the money, he asked me to go to Haiti to help Wilnot get his medical visa and to escort him to Boston.

That short trip to Haiti had an enormous impact on my life. I was shattered to see the poverty that the people of Haiti were enduring – and in a country a short plane flight from Miami.

Shortly after this, Paul asked me to help him find treatment for another patient, a young boy named John, who presented with neck masses that were later diagnosed as nasopharyngeal carcinoma.

It took us some time to make the diagnosis and then to arrange free care at Mass General.

When I returned to Haiti with two PIH colleagues to help John get a visa and escort him back to Boston, we found that John’s condition was much worse. We ended up medically evacuating him to Boston, because he was too sick for a commercial flight.

Tracy Kidder wrote about this heartbreaking experience in the book “Mountains Beyond Mountains.”

Throughout all of these experiences, I was deeply impressed with Paul’s commitment to do whatever it took to provide the best care for patients, as if they were members of his own family. He said “Tout Moun Se Moun” (Haitian Creole for “every person is a person”), and I could tell that he meant it.
 

Q. How did you collaborate with him professionally?

Dr. Koenig: I spent the first few years after residency working with Paul and Partners In Health. Initially, I served as a liaison between PIH in Haiti and the Brigham, bringing several more patients to Boston for care, and arranging specialty surgical trips to Haiti.

Later, when HIV funding became available from the Global Fund for HIV, Tuberculosis, and Malaria, I moved to rural Haiti to provide treatment for patients with HIV and/or TB at one of the first PIH expansion sites. We treated many patients with advanced stages of HIV and/or TB, and many of them recovered remarkably quickly with antiretroviral therapy.

When I returned to Boston to complete an infectious disease fellowship I switched my focus to conducting clinical research to improve HIV and TB treatment outcomes. Paul emailed his mentor and friend, Jean “Bill” Pape, the director of a Haitian NGO called GHESKIO (Haitian Group for the Study of Kaposi’s Sarcoma and Opportunistic Infections), which is an internationally celebrated center of excellence in HIV-related research and clinical care, to ask if I could collaborate with them.

Ever since that time, I have been based between the Brigham’s division of global health equity, which was led by Paul, and GHESKIO.

Paul was very supportive of our research, which aims to improve health service delivery and treatment regimens for HIV and TB.
 

Q. What lessons do you think other physicians can learn from him?

Dr. Koenig: As Joia Mukherjee, chief medical officer of Partners In Health, has said, Paul left us a roadmap. He wrote many books, and he was very eloquent in expressing his philosophy about equity and justice in numerous interviews. This is relevant not only for international sites, but in the United States as well, with our major disparities in health outcomes by race, geography, and socioeconomic status.

No one will be able to replace Paul, but he left us with a vision of what is achievable.

Dr. Koenig is associate physician, Brigham and Women’s Hospital, Boston, with faculty appointments in the divisions of global health equity and infectious diseases. She is also associate professor at Harvard Medical School.

Infectious disease specialist and humanitarian, Paul Edward Farmer, MD, PhD, who cofounded Partners In Health, died suddenly on Feb. 21. To celebrate his life, this news organization interviewed Serena Koenig, MD, MPH, who met Dr. Farmer when she was an internal medicine resident at Brigham and Women’s Hospital. Dr. Koenig had worked closely with Dr. Farmer ever since they met.

Q. Can you please share one of your best memories of Dr. Farmer?

Dr. Serena Koenig: There are so many memories it is hard to choose. One that was very formative for me occurred during one of my first trips to Haiti, in 2001. Paul and some other incredible colleagues at Partners IN Health (PIH) had started the HIV Equity Initiative, which was one of the first programs in the world to provide free, comprehensive treatment for HIV. This was at the time when millions of people in Africa were dying of HIV and many experts said it was not feasible to treat HIV in a poor country, because it was too complicated and expensive. Paul took me on some home visits with patients who had what he called the Lazarus effect, coming back from death’s door from advanced AIDS to vigorous health on antiretroviral therapy. I had just started working in Haiti with Paul and PIH, and I felt the enormous magnitude of what he was doing.

Q. What aspects of him and his work do you find most admirable?

Dr. Koenig: I most admired Paul’s humanity, his belief that every person matters and has the right to high-quality health care, and his vision of global health equity.

He said: “The idea that some lives matter less is the root of all that is wrong with the world.” Paul lived this philosophy. He has spoken extensively about harms of socialization for scarcity on behalf of those who are poor, leading policy makers to decisions regarding the feasibility of treating some diseases, but not others.

He said in an interview with the Harvard Gazette in 2018: “The most compelling thing to fight socialization for scarcity on behalf of others is health system strengthening. Health systems that integrate prevention and quality care.”

A few weeks ago, I asked him his thoughts about the high-level resources we have invested in some patients who have needed specialty care over the years, and he said: “No way that we should waste all of our emotional energy responding only to those constant, nagging critics that it’s not cost effective, not feasible, not sustainable, not even prudent. Because you know what they would have done if it was their child or family member.”
 

Q. When did you first meet Dr. Farmer, and what inspired you to work with him?

Dr. Koenig: When I was an internal medicine resident at the Brigham, Paul and I bonded over the care of one of my clinic patients who I followed very closely, and who was admitted to his inpatient service.

Like everyone else who has worked with Paul, I was touched by his kindness and warmth.

A couple of years later, he asked me to help him raise money to bring a young man named Wilnot from Haiti to the Brigham for an aortic valve replacement. After we raised the money, he asked me to go to Haiti to help Wilnot get his medical visa and to escort him to Boston.

That short trip to Haiti had an enormous impact on my life. I was shattered to see the poverty that the people of Haiti were enduring – and in a country a short plane flight from Miami.

Shortly after this, Paul asked me to help him find treatment for another patient, a young boy named John, who presented with neck masses that were later diagnosed as nasopharyngeal carcinoma.

It took us some time to make the diagnosis and then to arrange free care at Mass General.

When I returned to Haiti with two PIH colleagues to help John get a visa and escort him back to Boston, we found that John’s condition was much worse. We ended up medically evacuating him to Boston, because he was too sick for a commercial flight.

Tracy Kidder wrote about this heartbreaking experience in the book “Mountains Beyond Mountains.”

Throughout all of these experiences, I was deeply impressed with Paul’s commitment to do whatever it took to provide the best care for patients, as if they were members of his own family. He said “Tout Moun Se Moun” (Haitian Creole for “every person is a person”), and I could tell that he meant it.
 

Q. How did you collaborate with him professionally?

Dr. Koenig: I spent the first few years after residency working with Paul and Partners In Health. Initially, I served as a liaison between PIH in Haiti and the Brigham, bringing several more patients to Boston for care, and arranging specialty surgical trips to Haiti.

Later, when HIV funding became available from the Global Fund for HIV, Tuberculosis, and Malaria, I moved to rural Haiti to provide treatment for patients with HIV and/or TB at one of the first PIH expansion sites. We treated many patients with advanced stages of HIV and/or TB, and many of them recovered remarkably quickly with antiretroviral therapy.

When I returned to Boston to complete an infectious disease fellowship I switched my focus to conducting clinical research to improve HIV and TB treatment outcomes. Paul emailed his mentor and friend, Jean “Bill” Pape, the director of a Haitian NGO called GHESKIO (Haitian Group for the Study of Kaposi’s Sarcoma and Opportunistic Infections), which is an internationally celebrated center of excellence in HIV-related research and clinical care, to ask if I could collaborate with them.

Ever since that time, I have been based between the Brigham’s division of global health equity, which was led by Paul, and GHESKIO.

Paul was very supportive of our research, which aims to improve health service delivery and treatment regimens for HIV and TB.
 

Q. What lessons do you think other physicians can learn from him?

Dr. Koenig: As Joia Mukherjee, chief medical officer of Partners In Health, has said, Paul left us a roadmap. He wrote many books, and he was very eloquent in expressing his philosophy about equity and justice in numerous interviews. This is relevant not only for international sites, but in the United States as well, with our major disparities in health outcomes by race, geography, and socioeconomic status.

No one will be able to replace Paul, but he left us with a vision of what is achievable.

Dr. Koenig is associate physician, Brigham and Women’s Hospital, Boston, with faculty appointments in the divisions of global health equity and infectious diseases. She is also associate professor at Harvard Medical School.

A new statistical analysis of an existing meta-analysis reaffirms a finding that hospitalized patients with COVID-19 who are on simple oxygen or noninvasive ventilation can benefit from treatment with the arthritis drug tocilizumab (Actemra) in conjunction with corticosteroids. But the report also casts doubt on the effectiveness of tocilizumab in patients who are on ventilators.

“Clinicians should prescribe steroids and tocilizumab for hospitalized patients needing simple oxygen or noninvasive ventilation,” epidemiologist and study coauthor James (Jay) Brophy, MD, PhD, of McGill University, Montreal, said in an interview. “Further research is required to answer the question of whether tocilizumab is beneficial in patients requiring invasive ventilation, and consideration of participation in further tocilizumab studies seems reasonable.”

The new analysis was published Feb. 28, 2022, in JAMA Network Open.

The initial meta-analysis, published in 2021 in JAMA, was conducted by the WHO Rapid Evidence Appraisal for COVID-19 Therapies Working Group. It analyzed the results of 27 randomized trials that explored the use of interleukin-6 antagonists, including tocilizumab, and found that “28-day all-cause mortality was lower among patients who received IL-6 antagonists, compared with those who received usual care or placebo (summary odds ratio, 0.86). The summary ORs for the association of IL-6 antagonist treatment with 28-day all-cause mortality were 0.78 with concomitant administration of corticosteroids versus 1.09 without administration of corticosteroids.”

For the new report, researchers conducted a Bayesian statistical analysis of 15 studies within the meta-analysis that specifically examined the use of the rheumatoid arthritis drug tocilizumab. “Bayesian analysis allows one to make direct probability statements regarding the exact magnitude and the certainty of any benefit,” Dr. Brophy said. “This provides clinicians with the information they require to make well-informed decisions.”

The analysis estimated that the probability of a “clinically meaningful association” (absolute mortality risk difference, >1%) because of use of tocilizumab was higher than 95% in patients receiving simple oxygen and higher than 90% in those receiving noninvasive ventilation. But the probability was only about 67% higher in those receiving invasive mechanical ventilation.

Also, the researchers estimated that about 72% of future tocilizumab studies in patients on invasive mechanical ventilation would show a benefit.

The new analysis findings don’t add much to existing knowledge, said nephrologist David E. Leaf, MD, MMSc, of Harvard Medical School, Boston, who’s studied tocilizumab in COVID-19.

“The signal seems to be consistent that there is a greater benefit of tocilizumab in less ill patients than those who are more ill – e.g., those who are receiving invasive mechanical ventilation,” Dr. Leaf said in an interview. “This is interesting because in clinical practice the opposite approach is often undertaken, with tocilizumab use only being used in the sickest patients, even though the patients most likely to benefit seem to be those who are less ill.”

Clinically, he said, “hospitalized patients with COVID-19 should receive tocilizumab unless they have a clear contraindication and assuming it can be administered relatively early in their disease course. Earlier administration, before the onset of irreversible organ injury, is likely to have greater benefit.”

Dr. Leaf also noted it’s unknown whether the drug is helpful in several groups – patients presenting later in the course of COVID-19 illness, patients with additional infections, and immunocompromised patients.

It’s also not clear if tocilizumab benefits patients with lower levels of C-reactive protein, Shruti Gupta, MD, MPH, a nephrologist at Brigham and Women’s Hospital in Boston, said in an interview. The RECOVERY trial, for example, limited subjects to those with C-reactive protein of at least 75 mg/L.

Dr. Leaf and Dr. Gupta coauthored a 2021 cohort study analyzing mortality rates in patients with COVID-19 who were treated with tocilizumab versus those who were not.

No study funding was reported. Dr. Brophy, Dr. Leaf, and Dr. Gupta disclosed no relevant financial relationships. One study author reported participating in one of the randomized clinical trials included in the analysis.

A version of this article first appeared on Medscape.com.

A new statistical analysis of an existing meta-analysis reaffirms a finding that hospitalized patients with COVID-19 who are on simple oxygen or noninvasive ventilation can benefit from treatment with the arthritis drug tocilizumab (Actemra) in conjunction with corticosteroids. But the report also casts doubt on the effectiveness of tocilizumab in patients who are on ventilators.

“Clinicians should prescribe steroids and tocilizumab for hospitalized patients needing simple oxygen or noninvasive ventilation,” epidemiologist and study coauthor James (Jay) Brophy, MD, PhD, of McGill University, Montreal, said in an interview. “Further research is required to answer the question of whether tocilizumab is beneficial in patients requiring invasive ventilation, and consideration of participation in further tocilizumab studies seems reasonable.”

The new analysis was published Feb. 28, 2022, in JAMA Network Open.

The initial meta-analysis, published in 2021 in JAMA, was conducted by the WHO Rapid Evidence Appraisal for COVID-19 Therapies Working Group. It analyzed the results of 27 randomized trials that explored the use of interleukin-6 antagonists, including tocilizumab, and found that “28-day all-cause mortality was lower among patients who received IL-6 antagonists, compared with those who received usual care or placebo (summary odds ratio, 0.86). The summary ORs for the association of IL-6 antagonist treatment with 28-day all-cause mortality were 0.78 with concomitant administration of corticosteroids versus 1.09 without administration of corticosteroids.”

For the new report, researchers conducted a Bayesian statistical analysis of 15 studies within the meta-analysis that specifically examined the use of the rheumatoid arthritis drug tocilizumab. “Bayesian analysis allows one to make direct probability statements regarding the exact magnitude and the certainty of any benefit,” Dr. Brophy said. “This provides clinicians with the information they require to make well-informed decisions.”

The analysis estimated that the probability of a “clinically meaningful association” (absolute mortality risk difference, >1%) because of use of tocilizumab was higher than 95% in patients receiving simple oxygen and higher than 90% in those receiving noninvasive ventilation. But the probability was only about 67% higher in those receiving invasive mechanical ventilation.

Also, the researchers estimated that about 72% of future tocilizumab studies in patients on invasive mechanical ventilation would show a benefit.

The new analysis findings don’t add much to existing knowledge, said nephrologist David E. Leaf, MD, MMSc, of Harvard Medical School, Boston, who’s studied tocilizumab in COVID-19.

“The signal seems to be consistent that there is a greater benefit of tocilizumab in less ill patients than those who are more ill – e.g., those who are receiving invasive mechanical ventilation,” Dr. Leaf said in an interview. “This is interesting because in clinical practice the opposite approach is often undertaken, with tocilizumab use only being used in the sickest patients, even though the patients most likely to benefit seem to be those who are less ill.”

Clinically, he said, “hospitalized patients with COVID-19 should receive tocilizumab unless they have a clear contraindication and assuming it can be administered relatively early in their disease course. Earlier administration, before the onset of irreversible organ injury, is likely to have greater benefit.”

Dr. Leaf also noted it’s unknown whether the drug is helpful in several groups – patients presenting later in the course of COVID-19 illness, patients with additional infections, and immunocompromised patients.

It’s also not clear if tocilizumab benefits patients with lower levels of C-reactive protein, Shruti Gupta, MD, MPH, a nephrologist at Brigham and Women’s Hospital in Boston, said in an interview. The RECOVERY trial, for example, limited subjects to those with C-reactive protein of at least 75 mg/L.

Dr. Leaf and Dr. Gupta coauthored a 2021 cohort study analyzing mortality rates in patients with COVID-19 who were treated with tocilizumab versus those who were not.

No study funding was reported. Dr. Brophy, Dr. Leaf, and Dr. Gupta disclosed no relevant financial relationships. One study author reported participating in one of the randomized clinical trials included in the analysis.

A version of this article first appeared on Medscape.com.

A new statistical analysis of an existing meta-analysis reaffirms a finding that hospitalized patients with COVID-19 who are on simple oxygen or noninvasive ventilation can benefit from treatment with the arthritis drug tocilizumab (Actemra) in conjunction with corticosteroids. But the report also casts doubt on the effectiveness of tocilizumab in patients who are on ventilators.

“Clinicians should prescribe steroids and tocilizumab for hospitalized patients needing simple oxygen or noninvasive ventilation,” epidemiologist and study coauthor James (Jay) Brophy, MD, PhD, of McGill University, Montreal, said in an interview. “Further research is required to answer the question of whether tocilizumab is beneficial in patients requiring invasive ventilation, and consideration of participation in further tocilizumab studies seems reasonable.”

The new analysis was published Feb. 28, 2022, in JAMA Network Open.

The initial meta-analysis, published in 2021 in JAMA, was conducted by the WHO Rapid Evidence Appraisal for COVID-19 Therapies Working Group. It analyzed the results of 27 randomized trials that explored the use of interleukin-6 antagonists, including tocilizumab, and found that “28-day all-cause mortality was lower among patients who received IL-6 antagonists, compared with those who received usual care or placebo (summary odds ratio, 0.86). The summary ORs for the association of IL-6 antagonist treatment with 28-day all-cause mortality were 0.78 with concomitant administration of corticosteroids versus 1.09 without administration of corticosteroids.”

For the new report, researchers conducted a Bayesian statistical analysis of 15 studies within the meta-analysis that specifically examined the use of the rheumatoid arthritis drug tocilizumab. “Bayesian analysis allows one to make direct probability statements regarding the exact magnitude and the certainty of any benefit,” Dr. Brophy said. “This provides clinicians with the information they require to make well-informed decisions.”

The analysis estimated that the probability of a “clinically meaningful association” (absolute mortality risk difference, >1%) because of use of tocilizumab was higher than 95% in patients receiving simple oxygen and higher than 90% in those receiving noninvasive ventilation. But the probability was only about 67% higher in those receiving invasive mechanical ventilation.

Also, the researchers estimated that about 72% of future tocilizumab studies in patients on invasive mechanical ventilation would show a benefit.

The new analysis findings don’t add much to existing knowledge, said nephrologist David E. Leaf, MD, MMSc, of Harvard Medical School, Boston, who’s studied tocilizumab in COVID-19.

“The signal seems to be consistent that there is a greater benefit of tocilizumab in less ill patients than those who are more ill – e.g., those who are receiving invasive mechanical ventilation,” Dr. Leaf said in an interview. “This is interesting because in clinical practice the opposite approach is often undertaken, with tocilizumab use only being used in the sickest patients, even though the patients most likely to benefit seem to be those who are less ill.”

Clinically, he said, “hospitalized patients with COVID-19 should receive tocilizumab unless they have a clear contraindication and assuming it can be administered relatively early in their disease course. Earlier administration, before the onset of irreversible organ injury, is likely to have greater benefit.”

Dr. Leaf also noted it’s unknown whether the drug is helpful in several groups – patients presenting later in the course of COVID-19 illness, patients with additional infections, and immunocompromised patients.

It’s also not clear if tocilizumab benefits patients with lower levels of C-reactive protein, Shruti Gupta, MD, MPH, a nephrologist at Brigham and Women’s Hospital in Boston, said in an interview. The RECOVERY trial, for example, limited subjects to those with C-reactive protein of at least 75 mg/L.

Dr. Leaf and Dr. Gupta coauthored a 2021 cohort study analyzing mortality rates in patients with COVID-19 who were treated with tocilizumab versus those who were not.

No study funding was reported. Dr. Brophy, Dr. Leaf, and Dr. Gupta disclosed no relevant financial relationships. One study author reported participating in one of the randomized clinical trials included in the analysis.

A version of this article first appeared on Medscape.com.

It would be overused and trite to say that the pandemic has drastically altered all of our lives and will cause lasting impact on how we function in society and medicine for years to come. While it seems that the current trend of the latest Omicron variant is on the downslope, the path to get to this point has been fraught with challenges that have struck at the very core of our society. As a primary care physician on the front lines seeing COVID patients, I have had to deal with not only the disease but the politics around it. As critical and life saving as the vaccines have been, many physicians have not been able to get access to these vaccines and give them to their patients. I am one of those physicians. I practice in Florida, and I still cannot give COVID vaccines in my office. 

I am a firm believer in the ability for physicians to be able to give all the necessary adult vaccines and provide them for their patients. The COVID vaccine exacerbated a majorly flawed system that further increased the health care disparities in the country. The current vaccine system for the majority of adult vaccines involves the physician’s being able to directly purchase supplies from the vaccine manufacturer, administer them to the patients, and be reimbursed.
 

Third parties can purchase vaccines at lower rates than those for physicians

The Affordable Care Act mandates that all vaccines approved by the Advisory Committee on Immunization Practices (ACIP) at the Centers for Disease Control and Prevention must be covered. This allows for better access to care as physicians will be able to purchase, store, and deliver vaccines to their patients. The fallacy in this system is that third parties get involved and rebates or incentives are given to these groups to purchase vaccines at a rate lower than those for physicians.

In addition, many organizations can get access to vaccines before physicians and at a lower cost. That system was flawed to begin with and created a deterrent for access to care and physician involvement in the vaccination process. This was worsened by different states being given the ability to decide how vaccines would be distributed for COVID.

Many pharmacies were able to give out COVID vaccines while many physician offices still have not received access to any of the vaccines. One of the major safety issues with this is that no physicians were involved in the administration of the vaccine, and it is unclear what training was given to the individuals injecting that vaccine. Finally, different places were interpreting the recommendations from ACIP on their own and not necessarily following the appropriate guidelines. All of these factors have further widened the health care disparity gap and made it difficult to provide the COVID vaccines in doctors’ offices.
 

Recommended next steps, solutions to problem

The question is what to do about this. The most important thing is to get the vaccines in arms so they can save lives. In addition, doctors need to be able to get the vaccines in their offices.

Many patients trust their physicians to advise them on what to do regarding health care. The majority of patients want to know if they should get the vaccine and ask for counseling. Physicians answering patients’ questions about vaccines is an important step in overcoming vaccine hesitancy.

Also, doctors need to be informed and supportive of the vaccine process.

The next step is the governmental aspect with those in power making sure that vaccines are accessible to all. Even if the vaccine cannot be given in the office, doctors should still be recommending that patients receive them. Plus, doctors should take every opportunity to ask about what vaccines their patients have received and encourage their patients to get vaccinated.

The COVID-19 vaccines are safe and effective and have been monitored for safety more than any other vaccine. There are multiple systems in place to look for any signals that could indicate an issue was caused by a COVID-19 vaccine. These vaccines can be administered with other vaccines, and there is a great opportunity for physicians to encourage patients to receive these life-saving vaccines.

While it may seem that the COVID-19 case counts are on the downslope, the importance of continuing to vaccinate is predicated on the very real concern that the disease is still circulating and the unvaccinated are still at risk for severe infection.

Dr. Goldman is immediate past governor of the Florida chapter of the American College of Physicians, a regent for the American College of Physicians, vice-president of the Florida Medical Association, and president of the Florida Medical Association Political Action Committee. You can reach Dr. Goldman at [email protected].

It would be overused and trite to say that the pandemic has drastically altered all of our lives and will cause lasting impact on how we function in society and medicine for years to come. While it seems that the current trend of the latest Omicron variant is on the downslope, the path to get to this point has been fraught with challenges that have struck at the very core of our society. As a primary care physician on the front lines seeing COVID patients, I have had to deal with not only the disease but the politics around it. As critical and life saving as the vaccines have been, many physicians have not been able to get access to these vaccines and give them to their patients. I am one of those physicians. I practice in Florida, and I still cannot give COVID vaccines in my office. 

I am a firm believer in the ability for physicians to be able to give all the necessary adult vaccines and provide them for their patients. The COVID vaccine exacerbated a majorly flawed system that further increased the health care disparities in the country. The current vaccine system for the majority of adult vaccines involves the physician’s being able to directly purchase supplies from the vaccine manufacturer, administer them to the patients, and be reimbursed.
 

Third parties can purchase vaccines at lower rates than those for physicians

The Affordable Care Act mandates that all vaccines approved by the Advisory Committee on Immunization Practices (ACIP) at the Centers for Disease Control and Prevention must be covered. This allows for better access to care as physicians will be able to purchase, store, and deliver vaccines to their patients. The fallacy in this system is that third parties get involved and rebates or incentives are given to these groups to purchase vaccines at a rate lower than those for physicians.

In addition, many organizations can get access to vaccines before physicians and at a lower cost. That system was flawed to begin with and created a deterrent for access to care and physician involvement in the vaccination process. This was worsened by different states being given the ability to decide how vaccines would be distributed for COVID.

Many pharmacies were able to give out COVID vaccines while many physician offices still have not received access to any of the vaccines. One of the major safety issues with this is that no physicians were involved in the administration of the vaccine, and it is unclear what training was given to the individuals injecting that vaccine. Finally, different places were interpreting the recommendations from ACIP on their own and not necessarily following the appropriate guidelines. All of these factors have further widened the health care disparity gap and made it difficult to provide the COVID vaccines in doctors’ offices.
 

Recommended next steps, solutions to problem

The question is what to do about this. The most important thing is to get the vaccines in arms so they can save lives. In addition, doctors need to be able to get the vaccines in their offices.

Many patients trust their physicians to advise them on what to do regarding health care. The majority of patients want to know if they should get the vaccine and ask for counseling. Physicians answering patients’ questions about vaccines is an important step in overcoming vaccine hesitancy.

Also, doctors need to be informed and supportive of the vaccine process.

The next step is the governmental aspect with those in power making sure that vaccines are accessible to all. Even if the vaccine cannot be given in the office, doctors should still be recommending that patients receive them. Plus, doctors should take every opportunity to ask about what vaccines their patients have received and encourage their patients to get vaccinated.

The COVID-19 vaccines are safe and effective and have been monitored for safety more than any other vaccine. There are multiple systems in place to look for any signals that could indicate an issue was caused by a COVID-19 vaccine. These vaccines can be administered with other vaccines, and there is a great opportunity for physicians to encourage patients to receive these life-saving vaccines.

While it may seem that the COVID-19 case counts are on the downslope, the importance of continuing to vaccinate is predicated on the very real concern that the disease is still circulating and the unvaccinated are still at risk for severe infection.

Dr. Goldman is immediate past governor of the Florida chapter of the American College of Physicians, a regent for the American College of Physicians, vice-president of the Florida Medical Association, and president of the Florida Medical Association Political Action Committee. You can reach Dr. Goldman at [email protected].

It would be overused and trite to say that the pandemic has drastically altered all of our lives and will cause lasting impact on how we function in society and medicine for years to come. While it seems that the current trend of the latest Omicron variant is on the downslope, the path to get to this point has been fraught with challenges that have struck at the very core of our society. As a primary care physician on the front lines seeing COVID patients, I have had to deal with not only the disease but the politics around it. As critical and life saving as the vaccines have been, many physicians have not been able to get access to these vaccines and give them to their patients. I am one of those physicians. I practice in Florida, and I still cannot give COVID vaccines in my office. 

I am a firm believer in the ability for physicians to be able to give all the necessary adult vaccines and provide them for their patients. The COVID vaccine exacerbated a majorly flawed system that further increased the health care disparities in the country. The current vaccine system for the majority of adult vaccines involves the physician’s being able to directly purchase supplies from the vaccine manufacturer, administer them to the patients, and be reimbursed.
 

Third parties can purchase vaccines at lower rates than those for physicians

The Affordable Care Act mandates that all vaccines approved by the Advisory Committee on Immunization Practices (ACIP) at the Centers for Disease Control and Prevention must be covered. This allows for better access to care as physicians will be able to purchase, store, and deliver vaccines to their patients. The fallacy in this system is that third parties get involved and rebates or incentives are given to these groups to purchase vaccines at a rate lower than those for physicians.

In addition, many organizations can get access to vaccines before physicians and at a lower cost. That system was flawed to begin with and created a deterrent for access to care and physician involvement in the vaccination process. This was worsened by different states being given the ability to decide how vaccines would be distributed for COVID.

Many pharmacies were able to give out COVID vaccines while many physician offices still have not received access to any of the vaccines. One of the major safety issues with this is that no physicians were involved in the administration of the vaccine, and it is unclear what training was given to the individuals injecting that vaccine. Finally, different places were interpreting the recommendations from ACIP on their own and not necessarily following the appropriate guidelines. All of these factors have further widened the health care disparity gap and made it difficult to provide the COVID vaccines in doctors’ offices.
 

Recommended next steps, solutions to problem

The question is what to do about this. The most important thing is to get the vaccines in arms so they can save lives. In addition, doctors need to be able to get the vaccines in their offices.

Many patients trust their physicians to advise them on what to do regarding health care. The majority of patients want to know if they should get the vaccine and ask for counseling. Physicians answering patients’ questions about vaccines is an important step in overcoming vaccine hesitancy.

Also, doctors need to be informed and supportive of the vaccine process.

The next step is the governmental aspect with those in power making sure that vaccines are accessible to all. Even if the vaccine cannot be given in the office, doctors should still be recommending that patients receive them. Plus, doctors should take every opportunity to ask about what vaccines their patients have received and encourage their patients to get vaccinated.

The COVID-19 vaccines are safe and effective and have been monitored for safety more than any other vaccine. There are multiple systems in place to look for any signals that could indicate an issue was caused by a COVID-19 vaccine. These vaccines can be administered with other vaccines, and there is a great opportunity for physicians to encourage patients to receive these life-saving vaccines.

While it may seem that the COVID-19 case counts are on the downslope, the importance of continuing to vaccinate is predicated on the very real concern that the disease is still circulating and the unvaccinated are still at risk for severe infection.

Dr. Goldman is immediate past governor of the Florida chapter of the American College of Physicians, a regent for the American College of Physicians, vice-president of the Florida Medical Association, and president of the Florida Medical Association Political Action Committee. You can reach Dr. Goldman at [email protected].

A study of the nasal microbiome helped researchers predict recurrent polyps in chronic rhinosinusitis patients with more than 90% accuracy, based on data from 85 individuals.

Chronic rhinosinusitis with nasal polyps (CRSwNP) has a significant impact on patient quality of life, but the underlying mechanism of the disease has not been well studied, and treatment options remain limited, wrote Yan Zhao, MD, of Capital Medical University, Beijing, and study coauthors.

Previous research has shown that nasal microbiome composition differs in patients with and without asthma, and some studies suggest that changes in microbiota could contribute to CRSwNP, the authors wrote. The researchers wondered if features of the nasal microbiome can predict the recurrence of nasal polyps after endoscopic sinus surgery and serve as a potential treatment target.

In a study in Allergy, the researchers examined nasal swab samples from 85 adults with CRSwNP who underwent endoscopic sinus surgery between August 2014 and March 2016 at a single center in China. The researchers performed bacterial analysis and gene sequencing on all samples.

The patients ranged in age from 18-73 years, with a mean age of 46 years, and included 64 men and 21 women. The primary outcome was recurrence of polyps. Of the total, 39 individuals had recurrence, and 46 did not.

When the researchers compared microbiota from swab samples of recurrent and nonrecurrent patients, they found differences in composition based on bacterial genus abundance. “Campylobacter, Bdellovibrio, and Aggregatibacter, among others, were more abundant in swabs from CRSwNP recurrence samples, whereas Actinobacillus, Gemella, and Moraxella were more abundant in non-recurrence samples,” they wrote.

The researchers then tested their theory that distinct nasal microbiota could be a predictive marker of risk for future nasal polyp recurrence. They used a training set of 48 samples and constructed models from nasal microbiota alone, clinical features alone, and both together.

The regression model identified Porphyromonas, Bacteroides, Moryella, Aggregatibacter, Butyrivibrio, Shewanella, Pseudoxanthomonas, Friedmanniella, Limnobacter, and Curvibacter as the most important taxa that distinguished recurrence from nonrecurrence in the specimens. When the model was validated, the area under the curve was 0.914, yielding a predictor of nasal polyp recurrence with 91.4% accuracy.

“It is highly likely that proteins, nucleic acids, and other small molecules produced by nasal microbiota are associated with the progression of CRSwNP,” the researchers noted in their discussion of the findings. “Further, the nasal microbiota could maintain a stable community environment through the secretion of various chemical compounds and/or inflammatory factors, thus playing a central role in the development of CRSwNP.”

The study findings were limited by several factors, including the analysis of nasal flora only at the genus level in the screening phase, the use only of bioinformatic analysis for recurrence prediction, and the inclusion only of subjects from a single center, the researchers noted. Future studies should combine predictors to increase accuracy and include deeper sequencing, they said. However, the results support data from previous studies and suggest a strategy to meet the need for predictors of recurrence in CRSwNP, they concluded.

“There is a critical need to understand the role of the upper airway microbiome in different phenotypes of CRS,” said Emily K. Cope, PhD, assistant director at the Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, in an interview. “This was one of the first studies to evaluate the predictive power of the microbiome in recurrence of a common CRS phenotype – CRS with nasal polyps,” she said. “Importantly, the researchers were able to predict recurrence of polyps prior to the disease manifestation,” she noted.  

“Given the nascent state of current upper airway microbiome research, I was surprised that they were able to predict polyp recurrence prior to disease manifestation,” Dr. Cope said. “This is exciting, and I can imagine a future where we use microbiome data to understand risk for disease.”

What is the take-home message for clinicians? Although the immediate clinical implications are limited, Dr. Cope expressed enthusiasm for additional research. “At this point, there’s not a lot we can do without validation studies, but this study is promising. I hope we can understand the mechanism that an altered microbiome might drive (or be a result of) polyposis,” she said.

The study was supported by the National Natural Science Foundation of China, the program for the Changjiang scholars and innovative research team, the Beijing Bai-Qian-Wan talent project, the Public Welfare Development and Reform Pilot Project, the National Science and Technology Major Project, and the CAMS Innovation Fund for Medical Sciences. The researchers and Dr. Cope disclosed no financial conflicts.

A version of this article first appeared on Medscape.com.

A study of the nasal microbiome helped researchers predict recurrent polyps in chronic rhinosinusitis patients with more than 90% accuracy, based on data from 85 individuals.

Chronic rhinosinusitis with nasal polyps (CRSwNP) has a significant impact on patient quality of life, but the underlying mechanism of the disease has not been well studied, and treatment options remain limited, wrote Yan Zhao, MD, of Capital Medical University, Beijing, and study coauthors.

Previous research has shown that nasal microbiome composition differs in patients with and without asthma, and some studies suggest that changes in microbiota could contribute to CRSwNP, the authors wrote. The researchers wondered if features of the nasal microbiome can predict the recurrence of nasal polyps after endoscopic sinus surgery and serve as a potential treatment target.

In a study in Allergy, the researchers examined nasal swab samples from 85 adults with CRSwNP who underwent endoscopic sinus surgery between August 2014 and March 2016 at a single center in China. The researchers performed bacterial analysis and gene sequencing on all samples.

The patients ranged in age from 18-73 years, with a mean age of 46 years, and included 64 men and 21 women. The primary outcome was recurrence of polyps. Of the total, 39 individuals had recurrence, and 46 did not.

When the researchers compared microbiota from swab samples of recurrent and nonrecurrent patients, they found differences in composition based on bacterial genus abundance. “Campylobacter, Bdellovibrio, and Aggregatibacter, among others, were more abundant in swabs from CRSwNP recurrence samples, whereas Actinobacillus, Gemella, and Moraxella were more abundant in non-recurrence samples,” they wrote.

The researchers then tested their theory that distinct nasal microbiota could be a predictive marker of risk for future nasal polyp recurrence. They used a training set of 48 samples and constructed models from nasal microbiota alone, clinical features alone, and both together.

The regression model identified Porphyromonas, Bacteroides, Moryella, Aggregatibacter, Butyrivibrio, Shewanella, Pseudoxanthomonas, Friedmanniella, Limnobacter, and Curvibacter as the most important taxa that distinguished recurrence from nonrecurrence in the specimens. When the model was validated, the area under the curve was 0.914, yielding a predictor of nasal polyp recurrence with 91.4% accuracy.

“It is highly likely that proteins, nucleic acids, and other small molecules produced by nasal microbiota are associated with the progression of CRSwNP,” the researchers noted in their discussion of the findings. “Further, the nasal microbiota could maintain a stable community environment through the secretion of various chemical compounds and/or inflammatory factors, thus playing a central role in the development of CRSwNP.”

The study findings were limited by several factors, including the analysis of nasal flora only at the genus level in the screening phase, the use only of bioinformatic analysis for recurrence prediction, and the inclusion only of subjects from a single center, the researchers noted. Future studies should combine predictors to increase accuracy and include deeper sequencing, they said. However, the results support data from previous studies and suggest a strategy to meet the need for predictors of recurrence in CRSwNP, they concluded.

“There is a critical need to understand the role of the upper airway microbiome in different phenotypes of CRS,” said Emily K. Cope, PhD, assistant director at the Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, in an interview. “This was one of the first studies to evaluate the predictive power of the microbiome in recurrence of a common CRS phenotype – CRS with nasal polyps,” she said. “Importantly, the researchers were able to predict recurrence of polyps prior to the disease manifestation,” she noted.  

“Given the nascent state of current upper airway microbiome research, I was surprised that they were able to predict polyp recurrence prior to disease manifestation,” Dr. Cope said. “This is exciting, and I can imagine a future where we use microbiome data to understand risk for disease.”

What is the take-home message for clinicians? Although the immediate clinical implications are limited, Dr. Cope expressed enthusiasm for additional research. “At this point, there’s not a lot we can do without validation studies, but this study is promising. I hope we can understand the mechanism that an altered microbiome might drive (or be a result of) polyposis,” she said.

The study was supported by the National Natural Science Foundation of China, the program for the Changjiang scholars and innovative research team, the Beijing Bai-Qian-Wan talent project, the Public Welfare Development and Reform Pilot Project, the National Science and Technology Major Project, and the CAMS Innovation Fund for Medical Sciences. The researchers and Dr. Cope disclosed no financial conflicts.

A version of this article first appeared on Medscape.com.

A study of the nasal microbiome helped researchers predict recurrent polyps in chronic rhinosinusitis patients with more than 90% accuracy, based on data from 85 individuals.

Chronic rhinosinusitis with nasal polyps (CRSwNP) has a significant impact on patient quality of life, but the underlying mechanism of the disease has not been well studied, and treatment options remain limited, wrote Yan Zhao, MD, of Capital Medical University, Beijing, and study coauthors.

Previous research has shown that nasal microbiome composition differs in patients with and without asthma, and some studies suggest that changes in microbiota could contribute to CRSwNP, the authors wrote. The researchers wondered if features of the nasal microbiome can predict the recurrence of nasal polyps after endoscopic sinus surgery and serve as a potential treatment target.

In a study in Allergy, the researchers examined nasal swab samples from 85 adults with CRSwNP who underwent endoscopic sinus surgery between August 2014 and March 2016 at a single center in China. The researchers performed bacterial analysis and gene sequencing on all samples.

The patients ranged in age from 18-73 years, with a mean age of 46 years, and included 64 men and 21 women. The primary outcome was recurrence of polyps. Of the total, 39 individuals had recurrence, and 46 did not.

When the researchers compared microbiota from swab samples of recurrent and nonrecurrent patients, they found differences in composition based on bacterial genus abundance. “Campylobacter, Bdellovibrio, and Aggregatibacter, among others, were more abundant in swabs from CRSwNP recurrence samples, whereas Actinobacillus, Gemella, and Moraxella were more abundant in non-recurrence samples,” they wrote.

The researchers then tested their theory that distinct nasal microbiota could be a predictive marker of risk for future nasal polyp recurrence. They used a training set of 48 samples and constructed models from nasal microbiota alone, clinical features alone, and both together.

The regression model identified Porphyromonas, Bacteroides, Moryella, Aggregatibacter, Butyrivibrio, Shewanella, Pseudoxanthomonas, Friedmanniella, Limnobacter, and Curvibacter as the most important taxa that distinguished recurrence from nonrecurrence in the specimens. When the model was validated, the area under the curve was 0.914, yielding a predictor of nasal polyp recurrence with 91.4% accuracy.

“It is highly likely that proteins, nucleic acids, and other small molecules produced by nasal microbiota are associated with the progression of CRSwNP,” the researchers noted in their discussion of the findings. “Further, the nasal microbiota could maintain a stable community environment through the secretion of various chemical compounds and/or inflammatory factors, thus playing a central role in the development of CRSwNP.”

The study findings were limited by several factors, including the analysis of nasal flora only at the genus level in the screening phase, the use only of bioinformatic analysis for recurrence prediction, and the inclusion only of subjects from a single center, the researchers noted. Future studies should combine predictors to increase accuracy and include deeper sequencing, they said. However, the results support data from previous studies and suggest a strategy to meet the need for predictors of recurrence in CRSwNP, they concluded.

“There is a critical need to understand the role of the upper airway microbiome in different phenotypes of CRS,” said Emily K. Cope, PhD, assistant director at the Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, in an interview. “This was one of the first studies to evaluate the predictive power of the microbiome in recurrence of a common CRS phenotype – CRS with nasal polyps,” she said. “Importantly, the researchers were able to predict recurrence of polyps prior to the disease manifestation,” she noted.  

“Given the nascent state of current upper airway microbiome research, I was surprised that they were able to predict polyp recurrence prior to disease manifestation,” Dr. Cope said. “This is exciting, and I can imagine a future where we use microbiome data to understand risk for disease.”

What is the take-home message for clinicians? Although the immediate clinical implications are limited, Dr. Cope expressed enthusiasm for additional research. “At this point, there’s not a lot we can do without validation studies, but this study is promising. I hope we can understand the mechanism that an altered microbiome might drive (or be a result of) polyposis,” she said.

The study was supported by the National Natural Science Foundation of China, the program for the Changjiang scholars and innovative research team, the Beijing Bai-Qian-Wan talent project, the Public Welfare Development and Reform Pilot Project, the National Science and Technology Major Project, and the CAMS Innovation Fund for Medical Sciences. The researchers and Dr. Cope disclosed no financial conflicts.

A version of this article first appeared on Medscape.com.

Legionnaires’ disease (LD) in the United States appears to be on an upswing that started in 2003, according to a study from the Centers for Disease Control and Prevention.

The reasons for this increased incidence are unclear, the researchers write in Emerging Infectious Diseases.

“The findings revealed a rising national trend in cases, widening racial disparities between Black or African American persons and White persons, and an increasing geographic focus in the Middle Atlantic, the East North Central, and New England,” lead author Albert E. Barskey, MPH, an epidemiologist in CDC’s Division of Bacterial Diseases, Atlanta, said in an email.

“Legionnaires’ disease cannot be diagnosed based on clinical features alone, and studies estimate that it is underdiagnosed, perhaps by 50%,” he added. “Our findings may serve to heighten clinicians’ awareness of this severe pneumonia’s etiology, so with an earlier correct diagnosis, appropriate treatment can be rendered sooner.”

Mr. Barskey and his coauthors at CDC – mathematical statistician Gordana Derado, PhD, and epidemiologist Chris Edens, PhD – used surveillance data to investigate the incidence of LD in the U.S. over time. They compared LD incidence in 2018 with average incidence between 1992 and 2002. The incidence data, from over 80,000 LD cases, were age-standardized using the 2005 U.S. standard population as the reference.

The researchers analyzed LD data reported to CDC by the 50 states, New York City, and Washington, D.C., through the National Notifiable Diseases Surveillance System. They performed regression analysis to identify the optimal year when population parameters changed, and for most analyses, they compared 1992-2002 data with 2003-2018 data.
 

Legionnaires’ disease up in various groups

• The overall age-standardized average incidence grew from 0.48 per 100,000 people during 1992-2002 to 2.71 per 100,000 in 2018 (incidence risk ratio, 5.67; 95% confidence interval, 5.52-5.83).
• LD incidence more than quintupled for people over 34 years of age, with the largest relative increase in those over 85 (RR, 6.50; 95% CI, 5.82-7.27).
• Incidence in men increased slightly more (RR, 5.86; 95% CI, 5.67-6.05) than in women (RR, 5.29; 95% CI, 5.06-5.53).
• Over the years, the racial disparity in incidence grew markedly. Incidence in Black persons increased from 0.47 to 5.21 per 100,000 (RR, 11.04; 95% CI, 10.39-11.73), compared with an increase from 0.37 to 1.99 per 100,000 in White persons (RR, 5.30; 95% CI, 5.12-5.49).
• The relative increase in incidence was highest in the Northeast (RR, 7.04; 95% CI, 6.70-7.40), followed by the Midwest (RR, 6.13; 95% CI, 5.85-6.42), the South (RR, 5.97; 95% CI, 5.67-6.29), and the West (RR, 3.39; 95% CI, 3.11-3.68).

Most LD cases occurred in summer or fall, and the seasonal pattern became more pronounced over time. The average of 57.8% of cases between June and November during 1992-2002 grew to 68.9% in 2003-2018.

Although the study “was hindered by incomplete race and ethnicity data,” Mr. Barskey said, “its breadth was a strength.”
 

Consider legionella in your diagnosis

In an interview, Paul G. Auwaerter, MD, a professor of medicine and the clinical director of the Division of Infectious Diseases at Johns Hopkins University School of Medicine, Baltimore, said he was not surprised by the results. “CDC has been reporting increased incidence of Legionnaires’ disease from water source outbreaks over the years. As a clinician, I very much depend on epidemiologic trends to help me understand the patient in front of me.

“The key point is that there’s more of it around, so consider it in your diagnosis,” he advised.

“Physicians are increasingly beginning to consider Legionella. Because LD is difficult to diagnose by traditional methods such as culture, they may use a PCR test,” said Dr. Auwaerter, who was not involved in the study. “Legionella needs antibiotics that differ a bit from traditional antibiotics used to treat bacterial pneumonia, so a correct diagnosis can inform a more directed therapy.”

“Why the incidence is increasing is the big question, and the authors nicely outline a litany of things,” he said.

The authors and Dr. Auwaerter proposed a number of possible contributing factors to the increased incidence:

• an aging population
• aging municipal and residential water sources that may harbor more organisms
• racial disparities and poverty
• underlying conditions, including diabetes, end-stage renal disease, and some cancers
• occupations in transportation, repair, cleaning services, and construction
• weather patterns
• improved surveillance and reporting

“Why Legionella appears in some locations more than others has not been explained,” Dr. Auwaerter added. “For example, Pittsburgh always seemed to have much more Legionella than Baltimore.”

Mr. Barskey and his team are planning further research into racial disparities and links between weather and climate and Legionnaires’ disease.

The authors are employees of CDC. Dr. Auwaerter has disclosed no relevant financial realtionships.

A version of this article first appeared on Medscape.com.

Legionnaires’ disease (LD) in the United States appears to be on an upswing that started in 2003, according to a study from the Centers for Disease Control and Prevention.

The reasons for this increased incidence are unclear, the researchers write in Emerging Infectious Diseases.

“The findings revealed a rising national trend in cases, widening racial disparities between Black or African American persons and White persons, and an increasing geographic focus in the Middle Atlantic, the East North Central, and New England,” lead author Albert E. Barskey, MPH, an epidemiologist in CDC’s Division of Bacterial Diseases, Atlanta, said in an email.

“Legionnaires’ disease cannot be diagnosed based on clinical features alone, and studies estimate that it is underdiagnosed, perhaps by 50%,” he added. “Our findings may serve to heighten clinicians’ awareness of this severe pneumonia’s etiology, so with an earlier correct diagnosis, appropriate treatment can be rendered sooner.”

Mr. Barskey and his coauthors at CDC – mathematical statistician Gordana Derado, PhD, and epidemiologist Chris Edens, PhD – used surveillance data to investigate the incidence of LD in the U.S. over time. They compared LD incidence in 2018 with average incidence between 1992 and 2002. The incidence data, from over 80,000 LD cases, were age-standardized using the 2005 U.S. standard population as the reference.

The researchers analyzed LD data reported to CDC by the 50 states, New York City, and Washington, D.C., through the National Notifiable Diseases Surveillance System. They performed regression analysis to identify the optimal year when population parameters changed, and for most analyses, they compared 1992-2002 data with 2003-2018 data.
 

Legionnaires’ disease up in various groups

• The overall age-standardized average incidence grew from 0.48 per 100,000 people during 1992-2002 to 2.71 per 100,000 in 2018 (incidence risk ratio, 5.67; 95% confidence interval, 5.52-5.83).
• LD incidence more than quintupled for people over 34 years of age, with the largest relative increase in those over 85 (RR, 6.50; 95% CI, 5.82-7.27).
• Incidence in men increased slightly more (RR, 5.86; 95% CI, 5.67-6.05) than in women (RR, 5.29; 95% CI, 5.06-5.53).
• Over the years, the racial disparity in incidence grew markedly. Incidence in Black persons increased from 0.47 to 5.21 per 100,000 (RR, 11.04; 95% CI, 10.39-11.73), compared with an increase from 0.37 to 1.99 per 100,000 in White persons (RR, 5.30; 95% CI, 5.12-5.49).
• The relative increase in incidence was highest in the Northeast (RR, 7.04; 95% CI, 6.70-7.40), followed by the Midwest (RR, 6.13; 95% CI, 5.85-6.42), the South (RR, 5.97; 95% CI, 5.67-6.29), and the West (RR, 3.39; 95% CI, 3.11-3.68).

Most LD cases occurred in summer or fall, and the seasonal pattern became more pronounced over time. The average of 57.8% of cases between June and November during 1992-2002 grew to 68.9% in 2003-2018.

Although the study “was hindered by incomplete race and ethnicity data,” Mr. Barskey said, “its breadth was a strength.”
 

Consider legionella in your diagnosis

In an interview, Paul G. Auwaerter, MD, a professor of medicine and the clinical director of the Division of Infectious Diseases at Johns Hopkins University School of Medicine, Baltimore, said he was not surprised by the results. “CDC has been reporting increased incidence of Legionnaires’ disease from water source outbreaks over the years. As a clinician, I very much depend on epidemiologic trends to help me understand the patient in front of me.

“The key point is that there’s more of it around, so consider it in your diagnosis,” he advised.

“Physicians are increasingly beginning to consider Legionella. Because LD is difficult to diagnose by traditional methods such as culture, they may use a PCR test,” said Dr. Auwaerter, who was not involved in the study. “Legionella needs antibiotics that differ a bit from traditional antibiotics used to treat bacterial pneumonia, so a correct diagnosis can inform a more directed therapy.”

“Why the incidence is increasing is the big question, and the authors nicely outline a litany of things,” he said.

The authors and Dr. Auwaerter proposed a number of possible contributing factors to the increased incidence:

• an aging population
• aging municipal and residential water sources that may harbor more organisms
• racial disparities and poverty
• underlying conditions, including diabetes, end-stage renal disease, and some cancers
• occupations in transportation, repair, cleaning services, and construction
• weather patterns
• improved surveillance and reporting

“Why Legionella appears in some locations more than others has not been explained,” Dr. Auwaerter added. “For example, Pittsburgh always seemed to have much more Legionella than Baltimore.”

Mr. Barskey and his team are planning further research into racial disparities and links between weather and climate and Legionnaires’ disease.

The authors are employees of CDC. Dr. Auwaerter has disclosed no relevant financial realtionships.

A version of this article first appeared on Medscape.com.

Legionnaires’ disease (LD) in the United States appears to be on an upswing that started in 2003, according to a study from the Centers for Disease Control and Prevention.

The reasons for this increased incidence are unclear, the researchers write in Emerging Infectious Diseases.

“The findings revealed a rising national trend in cases, widening racial disparities between Black or African American persons and White persons, and an increasing geographic focus in the Middle Atlantic, the East North Central, and New England,” lead author Albert E. Barskey, MPH, an epidemiologist in CDC’s Division of Bacterial Diseases, Atlanta, said in an email.

“Legionnaires’ disease cannot be diagnosed based on clinical features alone, and studies estimate that it is underdiagnosed, perhaps by 50%,” he added. “Our findings may serve to heighten clinicians’ awareness of this severe pneumonia’s etiology, so with an earlier correct diagnosis, appropriate treatment can be rendered sooner.”

Mr. Barskey and his coauthors at CDC – mathematical statistician Gordana Derado, PhD, and epidemiologist Chris Edens, PhD – used surveillance data to investigate the incidence of LD in the U.S. over time. They compared LD incidence in 2018 with average incidence between 1992 and 2002. The incidence data, from over 80,000 LD cases, were age-standardized using the 2005 U.S. standard population as the reference.

The researchers analyzed LD data reported to CDC by the 50 states, New York City, and Washington, D.C., through the National Notifiable Diseases Surveillance System. They performed regression analysis to identify the optimal year when population parameters changed, and for most analyses, they compared 1992-2002 data with 2003-2018 data.
 

Legionnaires’ disease up in various groups

• The overall age-standardized average incidence grew from 0.48 per 100,000 people during 1992-2002 to 2.71 per 100,000 in 2018 (incidence risk ratio, 5.67; 95% confidence interval, 5.52-5.83).
• LD incidence more than quintupled for people over 34 years of age, with the largest relative increase in those over 85 (RR, 6.50; 95% CI, 5.82-7.27).
• Incidence in men increased slightly more (RR, 5.86; 95% CI, 5.67-6.05) than in women (RR, 5.29; 95% CI, 5.06-5.53).
• Over the years, the racial disparity in incidence grew markedly. Incidence in Black persons increased from 0.47 to 5.21 per 100,000 (RR, 11.04; 95% CI, 10.39-11.73), compared with an increase from 0.37 to 1.99 per 100,000 in White persons (RR, 5.30; 95% CI, 5.12-5.49).
• The relative increase in incidence was highest in the Northeast (RR, 7.04; 95% CI, 6.70-7.40), followed by the Midwest (RR, 6.13; 95% CI, 5.85-6.42), the South (RR, 5.97; 95% CI, 5.67-6.29), and the West (RR, 3.39; 95% CI, 3.11-3.68).

Most LD cases occurred in summer or fall, and the seasonal pattern became more pronounced over time. The average of 57.8% of cases between June and November during 1992-2002 grew to 68.9% in 2003-2018.

Although the study “was hindered by incomplete race and ethnicity data,” Mr. Barskey said, “its breadth was a strength.”
 

Consider legionella in your diagnosis

In an interview, Paul G. Auwaerter, MD, a professor of medicine and the clinical director of the Division of Infectious Diseases at Johns Hopkins University School of Medicine, Baltimore, said he was not surprised by the results. “CDC has been reporting increased incidence of Legionnaires’ disease from water source outbreaks over the years. As a clinician, I very much depend on epidemiologic trends to help me understand the patient in front of me.

“The key point is that there’s more of it around, so consider it in your diagnosis,” he advised.

“Physicians are increasingly beginning to consider Legionella. Because LD is difficult to diagnose by traditional methods such as culture, they may use a PCR test,” said Dr. Auwaerter, who was not involved in the study. “Legionella needs antibiotics that differ a bit from traditional antibiotics used to treat bacterial pneumonia, so a correct diagnosis can inform a more directed therapy.”

“Why the incidence is increasing is the big question, and the authors nicely outline a litany of things,” he said.

The authors and Dr. Auwaerter proposed a number of possible contributing factors to the increased incidence:

• an aging population
• aging municipal and residential water sources that may harbor more organisms
• racial disparities and poverty
• underlying conditions, including diabetes, end-stage renal disease, and some cancers
• occupations in transportation, repair, cleaning services, and construction
• weather patterns
• improved surveillance and reporting

“Why Legionella appears in some locations more than others has not been explained,” Dr. Auwaerter added. “For example, Pittsburgh always seemed to have much more Legionella than Baltimore.”

Mr. Barskey and his team are planning further research into racial disparities and links between weather and climate and Legionnaires’ disease.

The authors are employees of CDC. Dr. Auwaerter has disclosed no relevant financial realtionships.

A version of this article first appeared on Medscape.com.

About 5% of people who are eligible to receive lung cancer screening do not live close to a facility and have limited or no access to screening,a recent analysis shows.

That percentage, although quite small, still translates to more than 750,000 individuals who are eligible to receive lung cancer screening but live at least 40 miles from a facility.

Overall, a larger proportion of eligible individuals in rural areas had no access to a facility, but a greater number of people in urban areas had no access, especially at shorter distances.

Understanding access issues is important given that “lung cancer screening with low-dose computed tomography scanning (LDCT) reduces mortality among high-risk adults, ... [but] annual screening rates remain low,” write study authors Liora Sahar, PhD, of the American Cancer Society in Atlanta, and colleagues.

The study was published online Feb. 15 in the journal Cancer.

It expands on a previous report, which found that “less than 6% of those 55 to 79 years of age do not have access to registry screening facilities”.

The new analysis incorporates the most recent guidelines from the U.S. Preventive Services Task Force, which lowered the screening age to 50 years and compares access across urban and rural areas.

Dr. Sahar and colleagues calculated the distances from population centers to screening facilities and estimated the number of individuals living within different distances of those facilities – 10, 20, 40, 50, and 100 miles. Geographical subdivisions, or census tracts, were also classified along a spectrum of rural to urban.

The authors found that, overall, about 14.8 million people aged 50-80 years are eligible for lung cancer screening, and 5.1% of that population – or 753,038 individuals – do not live within 40 miles of a facility and have no access to screening.

The proportion of people affected by access issues varies by geographic location. For eligible people living 40 miles or more from a facility, almost 25% (n = 287,803) in rural counties had no access, compared with 1.6% (n = 195,120) in metropolitan areas.

At greater distances to facilities (50 and 100 miles), these proportions diminish. In rural counties, for instance, 16% of eligible individuals (n = 186,401) living 50 or more miles away and 2.8% (n = 33,504) living 100 or more miles away had no access to a facility.

Not surprisingly, across all distances, “there is a significantly higher percentage of rural residents who do not have access to facilities in comparison with those in urban settings,” the authors write. “There are fewer facilities in rural areas, so residents need to travel longer distances to reach a facility.”

Notably, however, distance to a facility was not necessarily the greatest barrier to screening. The authors found a greater number of eligible individuals living in or close to urban areas were not getting screening when facilities were 10 miles away – more than 2.8 million in metropolitan areas versus just over 1 million in rural areas.

“The total number of individuals with no access in urban areas exceeds that of rural individuals, particularly at shorter distances ... [which] reveals an additional underserved population.”

Identifying geographic areas with greater access issues can help researchers address barriers to screening and improve uptake. 

“Areas and local pockets with persistently low or no access across short and long distances should be considered for tailored interventions, such as implementing mobile units, repurposing existing imaging or health facilities, and adding appropriate navigation, radiology, and screening program staff to better support the communities,” the authors conclude.

The study was supported in part by the National Lung Cancer Roundtable. Coauthor Debra S. Dyer, MD, serves on the clinical advisory board for computer software company Imidex and on the GO2 Foundation scientific advisory board; she also serves as a consultant for Lung Ambition Alliance. Coauthor Ella A. Kazerooni, MD, reports past participation on the Bristol Myers Squibb Foundation advisory board. The other authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

About 5% of people who are eligible to receive lung cancer screening do not live close to a facility and have limited or no access to screening,a recent analysis shows.

That percentage, although quite small, still translates to more than 750,000 individuals who are eligible to receive lung cancer screening but live at least 40 miles from a facility.

Overall, a larger proportion of eligible individuals in rural areas had no access to a facility, but a greater number of people in urban areas had no access, especially at shorter distances.

Understanding access issues is important given that “lung cancer screening with low-dose computed tomography scanning (LDCT) reduces mortality among high-risk adults, ... [but] annual screening rates remain low,” write study authors Liora Sahar, PhD, of the American Cancer Society in Atlanta, and colleagues.

The study was published online Feb. 15 in the journal Cancer.

It expands on a previous report, which found that “less than 6% of those 55 to 79 years of age do not have access to registry screening facilities”.

The new analysis incorporates the most recent guidelines from the U.S. Preventive Services Task Force, which lowered the screening age to 50 years and compares access across urban and rural areas.

Dr. Sahar and colleagues calculated the distances from population centers to screening facilities and estimated the number of individuals living within different distances of those facilities – 10, 20, 40, 50, and 100 miles. Geographical subdivisions, or census tracts, were also classified along a spectrum of rural to urban.

The authors found that, overall, about 14.8 million people aged 50-80 years are eligible for lung cancer screening, and 5.1% of that population – or 753,038 individuals – do not live within 40 miles of a facility and have no access to screening.

The proportion of people affected by access issues varies by geographic location. For eligible people living 40 miles or more from a facility, almost 25% (n = 287,803) in rural counties had no access, compared with 1.6% (n = 195,120) in metropolitan areas.

At greater distances to facilities (50 and 100 miles), these proportions diminish. In rural counties, for instance, 16% of eligible individuals (n = 186,401) living 50 or more miles away and 2.8% (n = 33,504) living 100 or more miles away had no access to a facility.

Not surprisingly, across all distances, “there is a significantly higher percentage of rural residents who do not have access to facilities in comparison with those in urban settings,” the authors write. “There are fewer facilities in rural areas, so residents need to travel longer distances to reach a facility.”

Notably, however, distance to a facility was not necessarily the greatest barrier to screening. The authors found a greater number of eligible individuals living in or close to urban areas were not getting screening when facilities were 10 miles away – more than 2.8 million in metropolitan areas versus just over 1 million in rural areas.

“The total number of individuals with no access in urban areas exceeds that of rural individuals, particularly at shorter distances ... [which] reveals an additional underserved population.”

Identifying geographic areas with greater access issues can help researchers address barriers to screening and improve uptake. 

“Areas and local pockets with persistently low or no access across short and long distances should be considered for tailored interventions, such as implementing mobile units, repurposing existing imaging or health facilities, and adding appropriate navigation, radiology, and screening program staff to better support the communities,” the authors conclude.

The study was supported in part by the National Lung Cancer Roundtable. Coauthor Debra S. Dyer, MD, serves on the clinical advisory board for computer software company Imidex and on the GO2 Foundation scientific advisory board; she also serves as a consultant for Lung Ambition Alliance. Coauthor Ella A. Kazerooni, MD, reports past participation on the Bristol Myers Squibb Foundation advisory board. The other authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

About 5% of people who are eligible to receive lung cancer screening do not live close to a facility and have limited or no access to screening,a recent analysis shows.

That percentage, although quite small, still translates to more than 750,000 individuals who are eligible to receive lung cancer screening but live at least 40 miles from a facility.

Overall, a larger proportion of eligible individuals in rural areas had no access to a facility, but a greater number of people in urban areas had no access, especially at shorter distances.

Understanding access issues is important given that “lung cancer screening with low-dose computed tomography scanning (LDCT) reduces mortality among high-risk adults, ... [but] annual screening rates remain low,” write study authors Liora Sahar, PhD, of the American Cancer Society in Atlanta, and colleagues.

The study was published online Feb. 15 in the journal Cancer.

It expands on a previous report, which found that “less than 6% of those 55 to 79 years of age do not have access to registry screening facilities”.

The new analysis incorporates the most recent guidelines from the U.S. Preventive Services Task Force, which lowered the screening age to 50 years and compares access across urban and rural areas.

Dr. Sahar and colleagues calculated the distances from population centers to screening facilities and estimated the number of individuals living within different distances of those facilities – 10, 20, 40, 50, and 100 miles. Geographical subdivisions, or census tracts, were also classified along a spectrum of rural to urban.

The authors found that, overall, about 14.8 million people aged 50-80 years are eligible for lung cancer screening, and 5.1% of that population – or 753,038 individuals – do not live within 40 miles of a facility and have no access to screening.

The proportion of people affected by access issues varies by geographic location. For eligible people living 40 miles or more from a facility, almost 25% (n = 287,803) in rural counties had no access, compared with 1.6% (n = 195,120) in metropolitan areas.

At greater distances to facilities (50 and 100 miles), these proportions diminish. In rural counties, for instance, 16% of eligible individuals (n = 186,401) living 50 or more miles away and 2.8% (n = 33,504) living 100 or more miles away had no access to a facility.

Not surprisingly, across all distances, “there is a significantly higher percentage of rural residents who do not have access to facilities in comparison with those in urban settings,” the authors write. “There are fewer facilities in rural areas, so residents need to travel longer distances to reach a facility.”

Notably, however, distance to a facility was not necessarily the greatest barrier to screening. The authors found a greater number of eligible individuals living in or close to urban areas were not getting screening when facilities were 10 miles away – more than 2.8 million in metropolitan areas versus just over 1 million in rural areas.

“The total number of individuals with no access in urban areas exceeds that of rural individuals, particularly at shorter distances ... [which] reveals an additional underserved population.”

Identifying geographic areas with greater access issues can help researchers address barriers to screening and improve uptake. 

“Areas and local pockets with persistently low or no access across short and long distances should be considered for tailored interventions, such as implementing mobile units, repurposing existing imaging or health facilities, and adding appropriate navigation, radiology, and screening program staff to better support the communities,” the authors conclude.

The study was supported in part by the National Lung Cancer Roundtable. Coauthor Debra S. Dyer, MD, serves on the clinical advisory board for computer software company Imidex and on the GO2 Foundation scientific advisory board; she also serves as a consultant for Lung Ambition Alliance. Coauthor Ella A. Kazerooni, MD, reports past participation on the Bristol Myers Squibb Foundation advisory board. The other authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

This study was published on Medrxiv.org as a preprint and has not yet been peer reviewed.

Key takeaways

• in analyses of more than 100,000 women that used Mendelian randomization (MR) as a tool to reduce residual confounding.
• The MR analyses showed no significant association between ANM and breast cancer, endometrial cancer, ovarian cancer, coronary heart disease, ischemic stroke, and Alzheimer’s disease.
• The clear lack of a causal effect of ANM on the outcomes of coronary heart disease and ischemic stroke in the MR analyses despite a strong inverse association seen in the observational data of this study (without MR) suggests residual confounding plays a substantial role in driving the observed outcomes.

Why this matters

• The authors said that, to their knowledge, this is the first study that has shown a causal association between older ANM and higher risk of postmenopausal lung cancer.
• This finding was directionally opposite to the significant protective effect of increased ANM documented in an observational analysis of roughly the same data as well as prior reports that did not use MR. This “notable inconsistency” suggests very substantial residual confounding without MR that could be driven by factors such as smoking, diet, and exercise.
• If these results are replicated in additional datasets, it would highlight a need for randomized, controlled trials of antiestrogen therapies in postmenopausal women for the prevention or treatment of lung cancer.

Study design

• The study included data from 106,853 postmenopausal women enrolled in the Women’s Health Initiative (WHI) and 95,464 women who were 37-73 years old included in the UK Biobank (UKB). Analyses for each outcome also included data from smaller numbers of women obtained from several additional datasets.
• The MR analysis used up to 55 single-nucleotide polymorphisms previously discovered through a genome-wide association study of about 70,000 women of European ancestry and independent of all datasets analyzed in the current study. The authors included all single-nucleotide polymorphisms with a consistent direction of effect on ANM.
• The MR analysis for lung cancer included 113,371 women from the two primary datasets and an additional 3012 women from six additional datasets.
• The MR analysis for bone fracture involved 113,239 women from the WHI and UKB only. The MR analysis for osteoporosis involved 137,080 women from the WHI, UKB, and one additional external dataset.

Key results

• Results from a meta-analysis of the MR results using data from the WHI, UKB, and the additional datasets showed ANM was causally associated with an increased risk of lung cancer by an odds ratio of 1.35 for each 5-year increase in ANM. In contrast, the adjusted observational analysis of data just from the WHI and UKB showed a significant 11% relative risk reduction in the incidence of lung cancer for each 5-year increase in ANM.
• The MR results also showed causally protective effects for fracture, with a 24% relative risk reduction, and for osteoporosis, with a 19% relative risk reduction for each 5-year increase in ANM.
• The MR analyses showed no significant association between AMN and outcome for breast cancer, endometrial cancer, ovarian cancer, coronary heart disease, ischemic stroke, and Alzheimer’s disease.

Limitations

The main limitation of the MR study was the potential for inadequate power for assessing some outcomes despite the large overall size of the study cohort. Lack of adequate power may be responsible for some of the nonsignificant associations seen in the study, such as for breast and endometrial cancers, where substantial prior evidence has implicated increased risk through the effects of prolonged exposure to endogenous or exogenous estrogens.

The healthy cohort effect in the UKB is a known weakness of this dataset that may have limited the number of cases and generalizability of findings.

Osteoporosis and Alzheimer’s disease were self-reported.

The study only included participants of European ancestry because most subjects in most of the cohorts examined were White women and the applied MR instruments were found by genome-wide association studies run predominantly in White women. The authors said the causal effects of ANM need study in more diverse populations.
 

Disclosures

• The study received no commercial funding.
• None of the authors had disclosures.

This is a summary of a preprint research study, “Genetic evidence for causal relationships between age at natural menopause and the risk of aging-associated adverse health outcomes,” written by authors primarily based at Stanford University School of Medicine i

A version of this article first appeared on Medscape.com.

This study was published on Medrxiv.org as a preprint and has not yet been peer reviewed.

Key takeaways

• in analyses of more than 100,000 women that used Mendelian randomization (MR) as a tool to reduce residual confounding.
• The MR analyses showed no significant association between ANM and breast cancer, endometrial cancer, ovarian cancer, coronary heart disease, ischemic stroke, and Alzheimer’s disease.
• The clear lack of a causal effect of ANM on the outcomes of coronary heart disease and ischemic stroke in the MR analyses despite a strong inverse association seen in the observational data of this study (without MR) suggests residual confounding plays a substantial role in driving the observed outcomes.

Why this matters

• The authors said that, to their knowledge, this is the first study that has shown a causal association between older ANM and higher risk of postmenopausal lung cancer.
• This finding was directionally opposite to the significant protective effect of increased ANM documented in an observational analysis of roughly the same data as well as prior reports that did not use MR. This “notable inconsistency” suggests very substantial residual confounding without MR that could be driven by factors such as smoking, diet, and exercise.
• If these results are replicated in additional datasets, it would highlight a need for randomized, controlled trials of antiestrogen therapies in postmenopausal women for the prevention or treatment of lung cancer.

Study design

• The study included data from 106,853 postmenopausal women enrolled in the Women’s Health Initiative (WHI) and 95,464 women who were 37-73 years old included in the UK Biobank (UKB). Analyses for each outcome also included data from smaller numbers of women obtained from several additional datasets.
• The MR analysis used up to 55 single-nucleotide polymorphisms previously discovered through a genome-wide association study of about 70,000 women of European ancestry and independent of all datasets analyzed in the current study. The authors included all single-nucleotide polymorphisms with a consistent direction of effect on ANM.
• The MR analysis for lung cancer included 113,371 women from the two primary datasets and an additional 3012 women from six additional datasets.
• The MR analysis for bone fracture involved 113,239 women from the WHI and UKB only. The MR analysis for osteoporosis involved 137,080 women from the WHI, UKB, and one additional external dataset.

Key results

• Results from a meta-analysis of the MR results using data from the WHI, UKB, and the additional datasets showed ANM was causally associated with an increased risk of lung cancer by an odds ratio of 1.35 for each 5-year increase in ANM. In contrast, the adjusted observational analysis of data just from the WHI and UKB showed a significant 11% relative risk reduction in the incidence of lung cancer for each 5-year increase in ANM.
• The MR results also showed causally protective effects for fracture, with a 24% relative risk reduction, and for osteoporosis, with a 19% relative risk reduction for each 5-year increase in ANM.
• The MR analyses showed no significant association between AMN and outcome for breast cancer, endometrial cancer, ovarian cancer, coronary heart disease, ischemic stroke, and Alzheimer’s disease.

Limitations

The main limitation of the MR study was the potential for inadequate power for assessing some outcomes despite the large overall size of the study cohort. Lack of adequate power may be responsible for some of the nonsignificant associations seen in the study, such as for breast and endometrial cancers, where substantial prior evidence has implicated increased risk through the effects of prolonged exposure to endogenous or exogenous estrogens.

The healthy cohort effect in the UKB is a known weakness of this dataset that may have limited the number of cases and generalizability of findings.

Osteoporosis and Alzheimer’s disease were self-reported.

The study only included participants of European ancestry because most subjects in most of the cohorts examined were White women and the applied MR instruments were found by genome-wide association studies run predominantly in White women. The authors said the causal effects of ANM need study in more diverse populations.
 

Disclosures

• The study received no commercial funding.
• None of the authors had disclosures.

This is a summary of a preprint research study, “Genetic evidence for causal relationships between age at natural menopause and the risk of aging-associated adverse health outcomes,” written by authors primarily based at Stanford University School of Medicine i

A version of this article first appeared on Medscape.com.

This study was published on Medrxiv.org as a preprint and has not yet been peer reviewed.

Key takeaways

• in analyses of more than 100,000 women that used Mendelian randomization (MR) as a tool to reduce residual confounding.
• The MR analyses showed no significant association between ANM and breast cancer, endometrial cancer, ovarian cancer, coronary heart disease, ischemic stroke, and Alzheimer’s disease.
• The clear lack of a causal effect of ANM on the outcomes of coronary heart disease and ischemic stroke in the MR analyses despite a strong inverse association seen in the observational data of this study (without MR) suggests residual confounding plays a substantial role in driving the observed outcomes.

Why this matters

• The authors said that, to their knowledge, this is the first study that has shown a causal association between older ANM and higher risk of postmenopausal lung cancer.
• This finding was directionally opposite to the significant protective effect of increased ANM documented in an observational analysis of roughly the same data as well as prior reports that did not use MR. This “notable inconsistency” suggests very substantial residual confounding without MR that could be driven by factors such as smoking, diet, and exercise.
• If these results are replicated in additional datasets, it would highlight a need for randomized, controlled trials of antiestrogen therapies in postmenopausal women for the prevention or treatment of lung cancer.

Study design

• The study included data from 106,853 postmenopausal women enrolled in the Women’s Health Initiative (WHI) and 95,464 women who were 37-73 years old included in the UK Biobank (UKB). Analyses for each outcome also included data from smaller numbers of women obtained from several additional datasets.
• The MR analysis used up to 55 single-nucleotide polymorphisms previously discovered through a genome-wide association study of about 70,000 women of European ancestry and independent of all datasets analyzed in the current study. The authors included all single-nucleotide polymorphisms with a consistent direction of effect on ANM.
• The MR analysis for lung cancer included 113,371 women from the two primary datasets and an additional 3012 women from six additional datasets.
• The MR analysis for bone fracture involved 113,239 women from the WHI and UKB only. The MR analysis for osteoporosis involved 137,080 women from the WHI, UKB, and one additional external dataset.

Key results

• Results from a meta-analysis of the MR results using data from the WHI, UKB, and the additional datasets showed ANM was causally associated with an increased risk of lung cancer by an odds ratio of 1.35 for each 5-year increase in ANM. In contrast, the adjusted observational analysis of data just from the WHI and UKB showed a significant 11% relative risk reduction in the incidence of lung cancer for each 5-year increase in ANM.
• The MR results also showed causally protective effects for fracture, with a 24% relative risk reduction, and for osteoporosis, with a 19% relative risk reduction for each 5-year increase in ANM.
• The MR analyses showed no significant association between AMN and outcome for breast cancer, endometrial cancer, ovarian cancer, coronary heart disease, ischemic stroke, and Alzheimer’s disease.

Limitations

The main limitation of the MR study was the potential for inadequate power for assessing some outcomes despite the large overall size of the study cohort. Lack of adequate power may be responsible for some of the nonsignificant associations seen in the study, such as for breast and endometrial cancers, where substantial prior evidence has implicated increased risk through the effects of prolonged exposure to endogenous or exogenous estrogens.

The healthy cohort effect in the UKB is a known weakness of this dataset that may have limited the number of cases and generalizability of findings.

Osteoporosis and Alzheimer’s disease were self-reported.

The study only included participants of European ancestry because most subjects in most of the cohorts examined were White women and the applied MR instruments were found by genome-wide association studies run predominantly in White women. The authors said the causal effects of ANM need study in more diverse populations.
 

Disclosures

• The study received no commercial funding.
• None of the authors had disclosures.

This is a summary of a preprint research study, “Genetic evidence for causal relationships between age at natural menopause and the risk of aging-associated adverse health outcomes,” written by authors primarily based at Stanford University School of Medicine i

A version of this article first appeared on Medscape.com.

Early initiation of the antiviral oseltamivir (Tamiflu) reduces the risk for death in patients hospitalized with community-acquired pneumonia (CAP) but patients have to be tested for influenza first and that is not happening often enough, a large observational cohort of adult patients indicates.

“Early testing allows for early treatment, and we found that early treatment was associated with reduced mortality so testing patients during the flu season is crucial,” senior author Michael Rothberg, MD, MPH, of the Cleveland Clinic said in an interview.

“Even during the flu season, most patients with CAP in our study went untested for influenza [even though] those who received early oseltamivir exhibited lower 14-day in-hospital case fatality ... suggesting more widespread testing might improve patient outcomes,” the authors added.

The study was published online Feb. 5, 2022, in the journal CHEST.
 

Premier database

Data from the Premier Database – a hospital discharge database with information from over 600 hospitals in the United States – were analyzed between July 2010 and June 2015. Microbiological laboratory data was provided by 179 hospitals. “For each year, we evaluated the total percentage of patients tested for influenza A/B within 3 days of hospitalization,” lead author Abhishek Deshpande, MD, PhD, Cleveland Clinic, and colleagues explained.

A total of 166,268 patients with CAP were included in the study, among which only about one-quarter were tested for influenza. Some 11.5% tested positive for the flu, the authors noted. Testing did increase from 15.4% in 2010 to 35.6% in 2015 and it was higher at close to 29% during the influenza season, compared with only about 8% during the summer months.

Patients who were tested for influenza were younger at age 66.6 years, compared with untested patients, who were 70 years of age (P < .001). Tested patients were also less likely to have been admitted from a nursing facility (P < .001), were less likely to have been hospitalized in the preceding 6 months (P < .001) and have fewer comorbidities than those who were not tested (P < .001).

“Both groups had similar illness severities on admission,” the authors observed, “but patients who were tested were less likely to die in the hospital within 14 days,” the authors reported – at 6.7% versus 10.9% for untested patients (P < .001).

More than 80% of patients who tested positive for influenza received an antibacterial on day 1 of their admission, compared with virtually all those who were either not tested or who tested negative, the investigators added (P < .001). The mean duration of antibacterial therapy among patients with a bacterial coinfection was not influenced by influenza test results.

However, among those who tested positive for influenza, almost 60% received oseltamivir on day 1 whereas roughly 30% received treatment on day 2 or later. In fact, almost all patients who received early oseltamivir were tested for influenza on day 1, the investigators pointed out. Patients who received early oseltamivir had a 25% lower risk of death within the first 14 days in hospital at an adjusted odds ratio of 0.75 (95% confidence interval, 0.59-0.96).

Early initiation of the antiviral also reduced the risk of requiring subsequent ICU care by 36% at an aOR of 0.64; invasive mechanical ventilation by 46% at an aOR of 0.54, and the need for vasopressor therapy by 47% at an aOR of 0.53. All results were within the 95% confidence levels.

Early use of antiviral therapy also reduced both the length of hospital stay and the cost of that stay by 12%.
 

ATS-IDSA guidelines

As Dr. Deshpande noted, the American Thoracic Society and the Infectious Diseases Society of America guidelines recommend testing and empiric treatment of influenza in patients hospitalized with CAP. “Testing more inpatients especially during the flu season can reduce other diagnostic testing and improve antimicrobial stewardship,” Deshpande noted.

Thus, while the rate of testing for influenza did increase over the 5-year study interval, “there is substantial room for improvement,” he added, as a positive test clearly does trigger the need for intervention. As Dr. Deshpande also noted, the past two influenza seasons have been mild, but influenza activity has again picked up lately again in many parts of the United States.

With the COVID-19 pandemic overwhelming influenza over the past few years, “differentiating between the two based on symptoms alone can be challenging,” he acknowledged, “and clinicians will need to test and treat accordingly.” This is particularly important given that this study clearly indicates that early treatment with an antiviral can lower the risk of short-term mortality in hospitalized CAP patients.

One limitation of the study was the lack of data on time of symptom onset, which may be an important confounder of the effect of oseltamivir on outcomes, the authors point out. Asked to comment on the findings, Barbara Jones, MD, University of Utah Health, Salt Lake City, noted that timely antivirals for patients with influenza are highly effective at mitigating severe disease and are thus strongly recommended by practice guidelines.

“However, it is hard for clinicians to keep influenza on the radar and change testing and treatment approaches according to the season and prevalence [of influenza infections],” she said in an interview. “This is an important study that highlights this challenge.

“We need a better understanding of the solutions that have been effective at improving influenza recognition and treatment, possibly by studying facilities that perform well at this process,” she said.

Dr. Deshpande reported receiving research funding to his institution from the Clorox Company and consultant fees from Merck.

A version of this article first appeared on Medscape.com.

Early initiation of the antiviral oseltamivir (Tamiflu) reduces the risk for death in patients hospitalized with community-acquired pneumonia (CAP) but patients have to be tested for influenza first and that is not happening often enough, a large observational cohort of adult patients indicates.

“Early testing allows for early treatment, and we found that early treatment was associated with reduced mortality so testing patients during the flu season is crucial,” senior author Michael Rothberg, MD, MPH, of the Cleveland Clinic said in an interview.

“Even during the flu season, most patients with CAP in our study went untested for influenza [even though] those who received early oseltamivir exhibited lower 14-day in-hospital case fatality ... suggesting more widespread testing might improve patient outcomes,” the authors added.

The study was published online Feb. 5, 2022, in the journal CHEST.
 

Premier database

Data from the Premier Database – a hospital discharge database with information from over 600 hospitals in the United States – were analyzed between July 2010 and June 2015. Microbiological laboratory data was provided by 179 hospitals. “For each year, we evaluated the total percentage of patients tested for influenza A/B within 3 days of hospitalization,” lead author Abhishek Deshpande, MD, PhD, Cleveland Clinic, and colleagues explained.

A total of 166,268 patients with CAP were included in the study, among which only about one-quarter were tested for influenza. Some 11.5% tested positive for the flu, the authors noted. Testing did increase from 15.4% in 2010 to 35.6% in 2015 and it was higher at close to 29% during the influenza season, compared with only about 8% during the summer months.

Patients who were tested for influenza were younger at age 66.6 years, compared with untested patients, who were 70 years of age (P < .001). Tested patients were also less likely to have been admitted from a nursing facility (P < .001), were less likely to have been hospitalized in the preceding 6 months (P < .001) and have fewer comorbidities than those who were not tested (P < .001).

“Both groups had similar illness severities on admission,” the authors observed, “but patients who were tested were less likely to die in the hospital within 14 days,” the authors reported – at 6.7% versus 10.9% for untested patients (P < .001).

More than 80% of patients who tested positive for influenza received an antibacterial on day 1 of their admission, compared with virtually all those who were either not tested or who tested negative, the investigators added (P < .001). The mean duration of antibacterial therapy among patients with a bacterial coinfection was not influenced by influenza test results.

However, among those who tested positive for influenza, almost 60% received oseltamivir on day 1 whereas roughly 30% received treatment on day 2 or later. In fact, almost all patients who received early oseltamivir were tested for influenza on day 1, the investigators pointed out. Patients who received early oseltamivir had a 25% lower risk of death within the first 14 days in hospital at an adjusted odds ratio of 0.75 (95% confidence interval, 0.59-0.96).

Early initiation of the antiviral also reduced the risk of requiring subsequent ICU care by 36% at an aOR of 0.64; invasive mechanical ventilation by 46% at an aOR of 0.54, and the need for vasopressor therapy by 47% at an aOR of 0.53. All results were within the 95% confidence levels.

Early use of antiviral therapy also reduced both the length of hospital stay and the cost of that stay by 12%.
 

ATS-IDSA guidelines

As Dr. Deshpande noted, the American Thoracic Society and the Infectious Diseases Society of America guidelines recommend testing and empiric treatment of influenza in patients hospitalized with CAP. “Testing more inpatients especially during the flu season can reduce other diagnostic testing and improve antimicrobial stewardship,” Deshpande noted.

Thus, while the rate of testing for influenza did increase over the 5-year study interval, “there is substantial room for improvement,” he added, as a positive test clearly does trigger the need for intervention. As Dr. Deshpande also noted, the past two influenza seasons have been mild, but influenza activity has again picked up lately again in many parts of the United States.

With the COVID-19 pandemic overwhelming influenza over the past few years, “differentiating between the two based on symptoms alone can be challenging,” he acknowledged, “and clinicians will need to test and treat accordingly.” This is particularly important given that this study clearly indicates that early treatment with an antiviral can lower the risk of short-term mortality in hospitalized CAP patients.

One limitation of the study was the lack of data on time of symptom onset, which may be an important confounder of the effect of oseltamivir on outcomes, the authors point out. Asked to comment on the findings, Barbara Jones, MD, University of Utah Health, Salt Lake City, noted that timely antivirals for patients with influenza are highly effective at mitigating severe disease and are thus strongly recommended by practice guidelines.

“However, it is hard for clinicians to keep influenza on the radar and change testing and treatment approaches according to the season and prevalence [of influenza infections],” she said in an interview. “This is an important study that highlights this challenge.

“We need a better understanding of the solutions that have been effective at improving influenza recognition and treatment, possibly by studying facilities that perform well at this process,” she said.

Dr. Deshpande reported receiving research funding to his institution from the Clorox Company and consultant fees from Merck.

A version of this article first appeared on Medscape.com.

Early initiation of the antiviral oseltamivir (Tamiflu) reduces the risk for death in patients hospitalized with community-acquired pneumonia (CAP) but patients have to be tested for influenza first and that is not happening often enough, a large observational cohort of adult patients indicates.

“Early testing allows for early treatment, and we found that early treatment was associated with reduced mortality so testing patients during the flu season is crucial,” senior author Michael Rothberg, MD, MPH, of the Cleveland Clinic said in an interview.

“Even during the flu season, most patients with CAP in our study went untested for influenza [even though] those who received early oseltamivir exhibited lower 14-day in-hospital case fatality ... suggesting more widespread testing might improve patient outcomes,” the authors added.

The study was published online Feb. 5, 2022, in the journal CHEST.
 

Premier database

Data from the Premier Database – a hospital discharge database with information from over 600 hospitals in the United States – were analyzed between July 2010 and June 2015. Microbiological laboratory data was provided by 179 hospitals. “For each year, we evaluated the total percentage of patients tested for influenza A/B within 3 days of hospitalization,” lead author Abhishek Deshpande, MD, PhD, Cleveland Clinic, and colleagues explained.

A total of 166,268 patients with CAP were included in the study, among which only about one-quarter were tested for influenza. Some 11.5% tested positive for the flu, the authors noted. Testing did increase from 15.4% in 2010 to 35.6% in 2015 and it was higher at close to 29% during the influenza season, compared with only about 8% during the summer months.

Patients who were tested for influenza were younger at age 66.6 years, compared with untested patients, who were 70 years of age (P < .001). Tested patients were also less likely to have been admitted from a nursing facility (P < .001), were less likely to have been hospitalized in the preceding 6 months (P < .001) and have fewer comorbidities than those who were not tested (P < .001).

“Both groups had similar illness severities on admission,” the authors observed, “but patients who were tested were less likely to die in the hospital within 14 days,” the authors reported – at 6.7% versus 10.9% for untested patients (P < .001).

More than 80% of patients who tested positive for influenza received an antibacterial on day 1 of their admission, compared with virtually all those who were either not tested or who tested negative, the investigators added (P < .001). The mean duration of antibacterial therapy among patients with a bacterial coinfection was not influenced by influenza test results.

However, among those who tested positive for influenza, almost 60% received oseltamivir on day 1 whereas roughly 30% received treatment on day 2 or later. In fact, almost all patients who received early oseltamivir were tested for influenza on day 1, the investigators pointed out. Patients who received early oseltamivir had a 25% lower risk of death within the first 14 days in hospital at an adjusted odds ratio of 0.75 (95% confidence interval, 0.59-0.96).

Early initiation of the antiviral also reduced the risk of requiring subsequent ICU care by 36% at an aOR of 0.64; invasive mechanical ventilation by 46% at an aOR of 0.54, and the need for vasopressor therapy by 47% at an aOR of 0.53. All results were within the 95% confidence levels.

Early use of antiviral therapy also reduced both the length of hospital stay and the cost of that stay by 12%.
 

ATS-IDSA guidelines

As Dr. Deshpande noted, the American Thoracic Society and the Infectious Diseases Society of America guidelines recommend testing and empiric treatment of influenza in patients hospitalized with CAP. “Testing more inpatients especially during the flu season can reduce other diagnostic testing and improve antimicrobial stewardship,” Deshpande noted.

Thus, while the rate of testing for influenza did increase over the 5-year study interval, “there is substantial room for improvement,” he added, as a positive test clearly does trigger the need for intervention. As Dr. Deshpande also noted, the past two influenza seasons have been mild, but influenza activity has again picked up lately again in many parts of the United States.

With the COVID-19 pandemic overwhelming influenza over the past few years, “differentiating between the two based on symptoms alone can be challenging,” he acknowledged, “and clinicians will need to test and treat accordingly.” This is particularly important given that this study clearly indicates that early treatment with an antiviral can lower the risk of short-term mortality in hospitalized CAP patients.

One limitation of the study was the lack of data on time of symptom onset, which may be an important confounder of the effect of oseltamivir on outcomes, the authors point out. Asked to comment on the findings, Barbara Jones, MD, University of Utah Health, Salt Lake City, noted that timely antivirals for patients with influenza are highly effective at mitigating severe disease and are thus strongly recommended by practice guidelines.

“However, it is hard for clinicians to keep influenza on the radar and change testing and treatment approaches according to the season and prevalence [of influenza infections],” she said in an interview. “This is an important study that highlights this challenge.

“We need a better understanding of the solutions that have been effective at improving influenza recognition and treatment, possibly by studying facilities that perform well at this process,” she said.

Dr. Deshpande reported receiving research funding to his institution from the Clorox Company and consultant fees from Merck.

A version of this article first appeared on Medscape.com.