A Review of Hypertension Management in Black Male Patients

Predictive Models for Sustained, Uncontrolled Hypertension and Hypertensive Crisis Based on Electronic Health Record Data: Algorithm Development and Validation

Background

Assessing disease progression among patients with uncontrolled hypertension is important for identifying opportunities for intervention.

Objective

We aim to develop and validate 2 models, one to predict sustained, uncontrolled hypertension (≥2 blood pressure [BP] readings ≥140/90 mm Hg or ≥1 BP reading ≥180/120 mm Hg) and one to predict hypertensive crisis (≥1 BP reading ≥180/120 mm Hg) within 1 year of an index visit (outpatient or ambulatory encounter in which an uncontrolled BP reading was recorded).

Methods

Data from 142,897 patients with uncontrolled hypertension within Atrium Health Greater Charlotte in 2018 were used. Electronic health record-based predictors were based on the 1-year period before a patient's index visit. The dataset was randomly split (80:20) into a training set and a validation set. In total, 4 machine learning frameworks were considered: L2-regularized logistic regression, multilayer perceptron, gradient boosting machines, and random forest. Model selection was performed with 10-fold cross-validation. The final models were assessed on discrimination (C-statistic), calibration (eg, integrated calibration index), and net benefit (with decision curve analysis). Additionally, internal-external cross-validation was performed at the county level to assess performance with new populations and summarized using random-effect meta-analyses.

Results

In internal validation, the C-statistic and integrated calibration index were 0.72 (95% CI 0.71-0.72) and 0.015 (95% CI 0.012-0.020) for the sustained, uncontrolled hypertension model, and 0.81 (95% CI 0.79-0.82) and 0.009 (95% CI 0.007-0.011) for the hypertensive crisis model. The models had higher net benefit than the default policies (ie, treat-all and treat-none) across different decision thresholds. In internal-external cross-validation, the pooled performance was consistent with internal validation results; in particular, the pooled C-statistics were 0.70 (95% CI 0.69-0.71) and 0.79 (95% CI 0.78-0.81) for the sustained, uncontrolled hypertension model and hypertensive crisis model, respectively.

Conclusions

An electronic health record-based model predicted hypertensive crisis reasonably well in internal and internal-external validations. The model can potentially be used to support population health surveillance and hypertension management. Further studies are needed to improve the ability to predict sustained, uncontrolled hypertension.

Black men's awareness of peripheral artery disease and acceptability of screening in barbershops: a qualitative analysis

INTRODUCTION

Peripheral artery disease (PAD) disproportionately burdens Black Americans, particularly Black men. Despite the significant prevalence and high rate of associated morbidity and mortality, awareness of and treatment initiation for PAD remains low in this demographic group. Given the well-established social cohesion among barbershops frequently attended by Black men, barbershops may be ideal settings for health screening and education to improve awareness, early detection, and treatment initiation of PAD among Black men.

METHODS

A qualitative study involving 1:1 participant interviews in Cleveland, Ohio assessed perspectives of Black men about barbershop-based screening and education about PAD. Inductive thematic analysis was performed to derive themes directly from the data to reflect perceived PAD awareness and acceptability of screening in a barbershop setting.

RESULTS

Twenty-eight African American/Black, non-Hispanic men completed a qualitative interview for this analysis. Mean age was 59.3 ± 11.2 years and 93% of participants resided in socioeconomically disadvantaged zip codes. Several themes emerged indicating increased awareness of PAD and acceptability of barbershop-based screenings for PAD, advocacy for systemic changes to improve the health of the community, and a desire among participants to increase knowledge about cardiovascular disease.

CONCLUSIONS

Participants were overwhelmingly accepting of PAD screenings and reported increased awareness of PAD and propensity to seek healthcare due to engagement in the study. Participants provided insight into barriers and facilitators of health and healthcare-seeking behavior, as well as into the community and the barbershop as an institution. Additional research is needed to explore the perspectives of additional stakeholders and to translate community-based screenings into treatment initiation.

Vulnerability to Hypertension Is a Major Determinant of Racial Disparities in Alzheimer's Disease Risk

BACKGROUND

Higher incidence levels of Alzheimer's disease (AD) in Black Americans are well documented. However, quantitative explanations of this disparity in terms of risk-factor diseases acting through well-defined pathways are lacking.

METHODS

We applied a Blinder-Oaxaca-based algorithm modified for censored data to a 5% random sample of Medicare beneficiaries age 65+ to explain Black/White disparities in AD risk in terms of differences in exposure and vulnerability to morbidity profiles based on 10 major AD-risk-related diseases.

RESULTS

The primary contribution to racial disparities in AD risk comes from morbidity profiles that included hypertension with about 1/5th of their contribution due to differences in prevalence (exposure effect) and 4/5ths to differences in the effects of the morbidity profile on AD risk (vulnerability effect). In total, disease-related effects explained a higher proportion of AD incidence in Black Americans than in their White counterparts.

CONCLUSIONS

Disease-related causes may represent some of the most straightforward targets for targeted interventions aimed at the reduction of racial disparities in health among US older adults. Hypertension is a manageable and potentially preventable condition responsible for the majority of the Black/White differences in AD risk, making mitigation of the role of this disease in engendering higher AD incidence in Black Americans a prominent concern.

County-Level Trends in Hypertension-Related Cardiovascular Disease Mortality-United States, 2000 to 2019

Background

Amid stagnating declines in national cardiovascular disease (CVD) mortality, documenting trends in county‐level hypertension‐related CVD death rates can help activate local efforts prioritizing hypertension prevention, detection, and control.

Methods and Results

Using death certificate data from the National Vital Statistics System, Bayesian spatiotemporal models were used to estimate county‐level hypertension‐related CVD death rates and corresponding trends during 2000 to 2010 and 2010 to 2019 for adults aged ≥35 years overall and by age group, race or ethnicity, and sex. Among adults aged 35 to 64 years, county‐level hypertension‐related CVD death rates increased from a median of 23.2 per 100 000 in 2000 to 43.4 per 100 000 in 2019. Among adults aged ≥65 years, county‐level hypertension‐related CVD death rates increased from a median of 362.1 per 100 000 in 2000 to 430.1 per 100 000 in 2019. Increases were larger and more prevalent among adults aged 35 to 64 years than those aged ≥65 years. More than 75% of counties experienced increasing hypertension‐related CVD death rates among patients aged 35 to 64 years during 2000 to 2010 and 2010 to 2019 (76.2% [95% credible interval, 74.7–78.4] and 86.2% [95% credible interval, 84.6–87.6], respectively), compared with 48.2% (95% credible interval, 47.0–49.7) during 2000 to 2010 and 66.1% (95% credible interval, 64.9–67.1) for patients aged ≥65 years. The highest rates for both age groups were among men and Black populations. All racial and ethnic categories in both age groups experienced widespread county‐level increases.

Conclusions

Large, widespread county‐level increases in hypertension‐related CVD mortality sound an alarm for intensified clinical and public health actions to improve hypertension prevention, detection, and control and prevent subsequent CVD deaths in counties across the nation.

Treating hypertension in Black patients

ABSTRACT

For the first time in its history, the Eighth Joint National Committee (JNC-8) published hypertension guidelines that varied depending on patient race, with different treatment recommendation for Black and non-Black patients. Although initial therapy in non-Black patients is to be carried out with one of four agents-thiazide diuretics, calcium channel blockers, angiotensin-converting enzyme (ACE) inhibitors, or angiotensin receptor blockers (ARBs)-the recommendation for Black patients removed ACE inhibitors and ARBs from the algorithm. This article reviews some of the physiologic theories for the difference in recommendations and discusses potential complications with race-based treatment algorithms.

Racial Disparities in Presentation and Short-Term Outcomes in Patients with Acute Type B Aortic Dissection

OBJECTIVE

Racial disparities in cardiovascular risk factors and disease outcomes are well documented. A knowledge gap exists on the role health maintenance plays in the development and outcomes of type B aortic dissection (TBAD). This study aims to evaluate the comparative presentation and short-term outcomes of patients with TBAD across race.

METHODS

In this single center retrospective study, TBAD patients admitted to the intensive care unit (ICU) were identified from 2015 to 2020. Patients self-identified as Black (N= 57) and White (N=123) were included. Groups were compared on variables including demographics, socioeconomic, pre-event health maintenance. Socioeconomic disadvantage was quantified based on The Area Deprivation Index (ADI). Management strategies included nonoperative and surgical repair. Outcomes were 30-day mortality, length of stay (LOS), and Acute Physiology and Chronic Health Evaluation (APACHE II) score.

RESULTS

The study included 180 consecutive patients with TBAD. TBAD included complicated (n= 42) and uncomplicated (n=138), of which (n=79) had high risk features. Blacks were younger than Whites (58.9 vs 67.6; p< 0.01), more likely to have end stage renal disease (ESRD) (8.8% vs 0.8%; p= 0.01) and to present with anemia (10.5% vs 2.4%; p=0.03). TBAD anatomic features and management were similar in both groups. Surgical intervention during hospitalization was 40% and 46% in Blacks and Whites, respectively (p= 0.4). Black patients were more likely to be on 3 or more hypertension agents, (42.2% vs 16.4%; p= 0.005) and less likely to be adherent to prescribed agents (27.1% vs 6.7%; p<0.001). Black patients had fewer primary care physician (PCP) visits prior to TBAD event (p= 0.03) and more Emergency Department (ED) utilization prior to TBAD, (57.9% vs 26.9% ;p < 0.001). Black patients had higher ADI scores, 86.0 ± 14.6 vs 64.4 ± 21.3 (p < 0.001). Median [IQR] APACHE II score was the same in both Blacks and Whites, 9[6, 12] and 9[7, 13] respectively (p=0.7). Hospital median LOS (days) was identical in both groups 7 [5, 13]. Readmission was 24.5% in Blacks vs 15.5% in Whites (p=0.16) with a 30-day mortality similar in Blacks 7.0% vs 5.7% Whites (p= 0.7).

CONCLUSION

Black patients present younger with similar dissection morphology, rate of anatomic high risk features and APACHE II scores. Fewer PCP visits, greater ED utilization, and higher ADI suggest lower health maintenance in Black patients. White patients with TBAD were also highly deprived of health maintenance compared to the national percentile, indicating that TBAD is a disease that affects vulnerable populations regardless of race.

Patient expectations and preferences for community-based hypertension classes with implications for action

BACKGROUND

Uncontrolled hypertension disproportionately affects Black men. Patient engagement with health promotion and health behavior programs for hypertension control is low. We held evidence-based hypertension classes at a Federally Qualified Health Center.

AIMS

The aim of this project was to elicit patient preferences and expectations for community-based hypertension classes.

METHODS

Group hypertension classes were held at a Federally Qualified Health Center. The priority population was Black men with hypertension. Semi-structured interviews were conducted with the group class attendees. Two independent coders performed content analysis using field notes from the interviews.

RESULTS

Seven group class attendees were interviewed. Six interviewees were Black males, one was a Black female, and the mean age was 65.7 years. Content analysis of the interview field notes revealed five content areas: (1) Recommendation of Group Classes to a Friend, (2) Expectations for the Group Classes, (3) Reasons for Continued Attendance, (4) Lifestyle Changes and Adopting the Group Class Lessons, and (5) Feedback and Recommendations to Improve Group Classes. Findings suggest that creating a cultural context in which open, transparent discussion of blood pressure occur can be achieved. Thus, regarding acceptability, classes fulfilled and often exceeded the attendees' expectations and needs.

LINKING EVIDENCE TO ACTION

Our findings suggest that community-based group classes are a viable intervention to contribute toward addressing the disparity of hypertension control among Black men. When designing peer-group interventions, taking patient preferences and expectations into account increases the effectiveness of these interventions. The qualitative narrative provided in this paper contributes to the development of similar community-based group classes for the management of severe hypertension.

Racial and Ethnic Disparities in the Research and Care of Hereditary Angioedema Patients in the United States

BACKGROUND

Hereditary angioedema (HAE) affects all races and both sexes equally. Minority patients are underrepresented in clinical trials and may be at risk for additional disease burden.

OBJECTIVES

To examine racial and ethnic disparities in the research and care of patients with HAE.

METHODS

We conducted a retrospective population-based study using TriNetX Diamond Network. International Classification of Diseases, 10th Revision, Current Procedural Terminology, and RxNorm codes identified patients with HAE. The proportions of White, Black, and Hispanic patients with HAE were contrasted with racial and ethnic distributions of patients with HAE in clinical trials. Lifetime prevalence of mental health disorders and HAE treatments was contrasted among different racial and ethnic groups.

RESULTS

A population-based search identified 2122 patients with HAE. The prevalence of HAE among Black patients (1.64/100,000 patients) mirrored that of White patients (1.47/100,000 patients), whereas there was a lower HAE prevalence among Hispanic patients (0.80/100,000 patients). The demographics of the 1274 patients with HAE included in phase 2/3 clinical trials differed significantly from population-based data with overrepresentation of White patients (89.9% vs 77.9%) and underrepresentation of Black patients (3.8% vs 13.6%) and Hispanic patients (1.3% vs 8.1%). Across the different racial and ethnic groups of patients with HAE, the prevalence of mental health disorders was comparatively higher than among patients without HAE. Whereas depression was equally prevalent across the different HAE racial and ethnic groups, anxiety was more prevalent among White patients.

CONCLUSIONS

Clinical trials for Food and Drug Administration-approved HAE medications underrepresent minority patients. Hereditary angioedema remains underdiagnosed in Hispanic patients. Other than a lower prevalence of anxiety disorders among Black patients relative to White patients, the mental health impact of HAE is equally distributed across the different racial and ethnic groups.

Arterial hypertension

Arterial hypertension is the most important contributor to the global burden of disease; however, disease control remains poor. Although the diagnosis of hypertension is still based on office blood pressure, confirmation with out-of-office blood pressure measurements (ie, ambulatory or home monitoring) is strongly recommended. The definition of hypertension differs throughout various guidelines, but the indications for antihypertensive therapy are relatively similar. Lifestyle adaptation is absolutely key in non-pharmacological treatment. Pharmacologically, angiotensin-converting enzyme inhibitors or angiotensin receptor blockers, calcium channel blockers, and diuretics are the first-line agents, with advice for the use of single-pill combination therapy by most guidelines. As a fourth-line agent, spironolactone should be considered. The rapidly evolving field of device-based therapy, especially renal denervation, will further broaden therapeutic options. Despite being a largely controllable condition, the actual rates of awareness, treatment, and control of hypertension are disappointingly low. Further improvements throughout the process of patient screening, diagnosis, treatment, and follow-up need to be urgently addressed.

Screening for regenerative therapy responders in heart failure

Risk of outcome variability challenges therapeutic innovation. Selection of the most suitable candidates is predicated on reliable response indicators. Especially for emergent regenerative biotherapies, determinants separating success from failure in achieving disease rescue remain largely unknown. Accordingly, (pre)clinical development programs have placed increased emphasis on the multi-dimensional decoding of repair capacity and disease resolution, attributes defining responsiveness. To attain regenerative goals for each individual, phenotype-based patient selection is poised for an upgrade guided by new insights into disease biology, translated into refined surveillance of response regulators and deep learning-amplified clinical decision support.

Reconsidering the Polypill for Management of Cardiovascular Risk Factors in Underserved Patients

PURPOSE OF REVIEW

The recent publication of "Polypill for Cardiovascular Disease Prevention in an Underserved Population" study prompts a thoughtful review of known care disparities in cardiovascular disease management in underserved patients. A polypill approach as a population health solution to this complex problem should also be reviewed.

RECENT FINDINGS

Muñoz and colleagues open-label, randomized controlled trial of polypill vs. usual care was undertaken in minority patients at a federally qualified health center. The polypill, containing atorvastatin, amlodipine, losartan, and hydrochlorothiazide resulted in statistically significant improvements in systolic blood pressure and low-density lipoprotein levels (p = 0.003 and p < 0.001, respectively). The significant results of this study demonstrate the ability of a polypill approach to safely lower blood pressure, lipids, and thus estimated 10-year risk of CVD and are consistent with findings observed in previous literature. Uniquely, findings in a largely non-Hispanic Black patient population, offer an opportunity to examine this approach to combat important disparities in care in an underserved U.S. community. Further outcomes-based studies are warranted to explore the validity of these results and long-term safety of polypill treatment and are likely necessary prior to FDA approval and availability of a polypill product.

Black patients have a higher burden of comorbidities but a lower risk of 30-day and 1-year mortality after thoracic endovascular aortic repair

BACKGROUND

Racial disparities in open thoracic aortic aneurysm repair have been well-documented, with Black patients reported to suffer from poor outcomes compared with their White counterparts. It is unclear whether these disparities extend to the less invasive thoracic endovascular aortic repair (TEVAR). This study aims to examine the clinical characteristics, perioperative outcomes, and 1-year survival of Black vs White patients undergoing TEVAR in a national vascular surgery database.

METHODS

The Vascular Quality Initiative database was retrospectively queried to identify all patients who underwent TEVAR between January 2011 and December 2019. The primary outcomes were 30-day mortality and 1-year survival after TEVAR. Secondary outcomes included various types of major postoperative complications. Multivariable logistic regression analyses were performed to identify predictors of 30-day mortality and perioperative complications. Multivariable Cox regression analysis was used to determine the predictors of 1-year survival.

RESULTS

A total of 2669 patients with TEVAR were identified in the Vascular Quality Initiative, of whom 648 were Black patients (24.3%). Compared with White patients, Black patients were younger and had a higher burden of comorbidities, including hypertension, diabetes, congestive heart failure, dialysis dependence, and anemia. Black patients were more likely to be symptomatic, present with aortic dissection, and undergo urgent or emergent repair. There was no statistically significant difference in 30-day mortality between Black and White patients (3.4% vs 4.9%; P = .1). After adjustment for demographics, comorbidities, and operative factors, Black patients were independently associated with a 56% decrease in 30-day mortality risk compared with their White counterparts (odds ratio, 0.44; 95% confidence interval [CI], 0.22-0.85; P = .01) and not associated with an increased risk of perioperative complications (odds ratio, 0.90; 95% CI, 0.68-1.17; P = .42). Black patients also had a significantly better 1-year overall survival (log-rank, P = .024) and were associated with a significantly decreased 1-year mortality (hazard ratio, 0.65; 95% CI, 0.47-0.91; P = .01) after adjusting for multiple clinical factors.

CONCLUSIONS

Although Black patients carried a higher burden of comorbidities, the racial disparities in perioperative outcomes and 1-year survival do not persist in TEVAR.