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Background Hypertension affects nearly half of adults in the U.S., with African American and Black (AA/B) adults experiencing some of the highest rates domestically and globally. Despite improvements in blood pressure control in the general population, rates of control among AA/B adults have stagnated, contributing to significant health disparities in the prevalence of hypertension and its long-term health impacts. Systemic barriers, including poverty and historically earned distrust in healthcare, hinder patient and clinician adherence to best practices for hypertension management. Community-based interventions, particularly those involving faith-based organizations, show promise in improving blood pressure control among AA/B adults. Methods The CIRCL-Chicago Implementation Research Center will test the effectiveness of a community-adapted hypertension control program, a “bundled” intervention developed by and tested in the Kaiser Permanente system, in South Side Chicago community health centers. A key partner for this trial, the Total Resource Community Development Organization, isa faith-based community outreach hub networked with faith-based organizations throughout Chicago’s South Side community. The study employs a type 3 hybrid effectiveness-implementation approach with a parallel cluster-randomized trial. Sixteen clinics will be randomized to implement a community-adapted Kaiser bundle with or without practice facilitation. We will recruit adults who live, work, or practice their faith in Chicago’s South Side community to populate a community-based hypertension registry (target n = 5,760 participants). The primary implementation outcome is the reach of the intervention, measured by the proportion of eligible patients in the registry who receive the adapted Kaiser bundle. Secondary outcomes include blood pressure control rates, assessed at 12 months post-enrollment. The study will use community-engaged adaptation, practice facilitation, and education and training strategies to support implementation. Discussion The CIRCL-Chicago study aims to address cardiovascular health disparities by integrating clinical and community-based approaches to hypertension management. By leveraging trusted community settings and engaging local partners, the study seeks to enhance the reach and effectiveness of evidence-based hypertension interventions. The findings could inform scalable models for hypertension control in diverse urban communities, potentially reducing health disparities for AA/B adults. Trial registration Clinicaltrials.gov NCT04755153 on 24 August 2023, https://www.centerwatch.com/clinical-trials/listings/NCT04755153/community-intervention-to-reduce-cardiovascular-disease-in-chicago

Although the effect of a pass/fail USMLE Step 1 exam on trainees from underrepresented groups remains uncertain, the change may help diversify the medical profession, opening a world of possibilities for physicians and patients alike.

BackgroundAtrial fibrillation (AF) is a leading cause of cardiovascular morbidity and mortality. While neighborhood-level factors, such as poverty, have been related to prevalence of AF risk factors, the association between neighborhood poverty and incident AF has been limited.ObjectiveUsing a large cohort from a health system serving the greater Chicago area, we sought to determine the association between neighborhood-level poverty and incident AF.DesignRetrospective cohort study.ParticipantsAdults, aged 30 to 80 years, without baseline cardiovascular disease from January 1, 2005, to December 31, 2018.Main MeasuresWe geocoded and matched residential addresses of all eligible patients to census-level poverty estimates from the American Community Survey. Neighborhood-level poverty (low, intermediate, and high) was defined as the proportion of residents in the census tract living below the federal poverty threshold. We used generalized linear mixed effects models with a logit link function to examine the association between neighborhood poverty and incident AF, adjusting for patient demographic and clinical AF risk factors.Key ResultsAmong 28,858 in the cohort, patients in the high poverty group were more often non-Hispanic Black or Hispanic and had higher rates of AF risk factors. Over 5 years of follow-up, 971 (3.4%) patients developed incident AF. Of these, 502 (51.7%) were in the low poverty, 327 (33.7%) in the intermediate poverty, and 142 (14.6%) in the high poverty group. The adjusted odds ratio (aOR) of AF was higher for the intermediate poverty compared with that for the low poverty group (aOR 1.23 [95% CI 1.01–1.48]). The point estimate for the aOR of AF incidence was similar, but not statistically significant, for the high poverty compared with the low poverty group (aOR 1.25 [95% CI 0.98–1.59]).ConclusionIn adults without baseline cardiovascular disease managed in a large, integrated health system, intermediate neighborhood poverty was significantly associated with incident AF. Understanding neighborhood-level drivers of AF disparities will help achieve equitable care.

Amyloid cardiomyopathy (ACM) is a progressive and life-threatening disease caused by abnormal protein deposits within cardiac tissue. The most common forms of ACM are caused by immunoglobulin derived light chains (AL) and transthyretin (TTR). Orthotopic heart transplantation (OHT) remains the definitive treatment for patients with end stage heart failure. In this study, we perform a contemporary multicenter analysis evaluating post OHT survival in patients with ACM. We conducted a multicenter analysis of 40,044 adult OHT recipients captured in the United Network for Organ Sharing (UNOS) registry from 1987-2018. Patients were characterized as ACM or non-ACM. Baseline characteristics were obtained, and summary characteristics were calculated. Outcomes of interest included post-transplant survival, infection, treated rejection, and the ability to return to work. Racial differences in OHT survival were also analyzed. Unadjusted associations between ACM and non-ACM survival were determined using the Kaplan-Meier estimations and confounding was addressed using multivariable Cox proportional hazards models. Three hundred ninety-eight patients with a diagnosis of ACM were identified of which 313 underwent heart only OHT. ACM patients were older (61 vs 53; P < .0001) and had a higher proportion of African Americans (30.7% vs 17.6%; P < .0001). Median survival for ACM was 10.2 years vs 12.5 years in non-ACM (P = .01). After adjusting for confounding, ACM patients had a higher likelihood of death post-OHT (HR 1.39 CI: 1.14, 1.70; P = .001). African American ACM patients had a higher likelihood of survival compared to White ACM patients (HR 0.51 CI 0.31-0.85; P = .01). No difference was observed in episodes of treated rejection (OR 0.63 CI 0.23, 1.78; P = .39), hospitalizations for infections (OR 1.24 CI: 0.85, 1.81; P = .26), or likelihood of returning to work for income (OR 1.23 CI: 0.84, 1.80; P = .30). In this analysis of OHT in ACM, ACM was associated with a higher likelihood of post-OHT mortality. Racial differences in post-OHT were observed with African American patients with ACM having higher likelihood of survival compared to White patients with ACM. No differences were observed in episodes of treated rejection, hospitalization for infection, or likelihood to return to work for income.

Background: Low rates of heart failure (HF) hospitalizations were observed during the 2020 peak of the COVID-19 pandemic. Additionally, posthospitalization follow-up transitioned to a predominantly telemedicine model. It is unknown whether the shift to telemedicine impacted disparities in posthospitalization follow-up or HF readmissions. Objective: The aim of this paper is to determine whether the shift to telemedicine impacted racial and ethnic as well as socioeconomic disparities in acute decompensated heart failure (ADHF) follow-up and HF readmissions. We additionally sought to investigate the impact of the COVID-19 pandemic on the severity of ADHF hospitalizations. Methods: This was a retrospective cohort study of HF admissions across 8 participating hospitals during the initial peak of the COVID-19 pandemic (March 15 to June 1, 2020), compared to the same time frame in 2019. Patients were stratified by race, ethnicity, and median neighborhood income. Hospital and intensive care unit (ICU) admission rates, inpatient mortality, 7-day follow-up, and 30-day readmissions were assessed. Results: From March 15, 2019, to June 1, 2020, there were 1162 hospitalizations for ADHF included in the study. There were significantly fewer admissions for ADHF in 2020, compared with 2019 (442 vs 720; P<.001). Patients in 2020 had higher rates of ICU admission, compared with 2019 (15.8% vs 11.1%; P=.02). This trend was seen across all subgroups and was significant for patients from the highest income quartile (17.89% vs 10.99%; P=.02). While there was a trend toward higher inpatient mortality in 2020 versus 2019 (4.3% vs 2.8%; P=.17), no difference was seen among different racial and socioeconomic groups. Telemedicine comprised 81.6% of 7-day follow-up in 2020, with improvement in 7-day follow-up rates (40.5% vs 29.6%; P<.001). Inequities in 7-day follow-up for patients from non-Hispanic Black racial backgrounds compared to those from non-Hispanic White backgrounds decreased during the pandemic. Additionally, those with telemedicine follow-up were less likely to be readmitted in 30 days when compared to no follow-up (13.8% vs 22.4%; P=.03). Conclusions: There were no major differences in HF ICU admissions or inpatient mortality for different racial and socioeconomic groups during the COVID-19 pandemic. Inequalities in 7-day follow-up were reduced with the advent of telemedicine and decreased 30-day readmission rates for those who had telemedicine follow-up.

Vaccinated and unvaccinated white mice were infected intravenously with virulent tubercle bacilli and treated with varying dosages of crystalline egg-white lysozyme. Unvaccinated mice were infected intravenously with virulent tubercle bacilli and given combined treatment with lysozyme and Triton A20. No convincing proof was obtained to indicate that crystalline egg-white lysozyme can exert beneficial effects on the course of experimental tuberculosis of mice.