Related Experiment Videos
Perspectives of hypertension in black patients: black vs. white differences
1Department of Medicine, University of Natal Medical School, Durban, Republic of South Africa.
Insights
Hypertension disproportionately affects Black populations in Africa and the US. Renal physiology and socioeconomic factors contribute to blood pressure differences, influencing treatment responses.
Area of Science:
- Cardiology
- Nephrology
- Public Health
Background:
- Hypertension is a significant health issue in Black populations in sub-Saharan Africa and the United States.
- Prevalence of hypertension ranges from 1-30% in adult populations.
- Documented differences exist in blood pressure (BP) between Black and White patients.
Purpose of the Study:
- To review genetic, endocrine, environmental, renal, and cardiac factors contributing to hypertension in Black populations.
- To elucidate the reasons behind racial differences in blood pressure.
- To suggest an optimized treatment approach for Black hypertensive patients.
Main Methods:
- Literature review of genetic, endocrine, environmental, renal, and cardiac factors.
- Analysis of racial differences in renal physiology and socioeconomic status.
- Examination of clinical presentations and treatment responses in Black hypertensive patients.
Main Results:
- Racial disparities in BP are linked to renal physiology and socioeconomic status.
- Black hypertensive patients often present with cerebral hemorrhage, malignant hypertension, and congestive heart failure, with less coronary artery disease.
- Suboptimal responses to beta-blockers and ACE inhibitors necessitate combination therapy with thiazide diuretics.
Conclusions:
- A tailored, profiled approach to hypertension management is recommended for Black patients.
- Diuretics, vasodilators, and calcium channel blockers are effective in treating hypertension in Black individuals.
- Understanding unique pathophysiological and socioeconomic factors is crucial for effective hypertension control in this demographic.
Abstract:
Hypertension is a major disease in the black population of sub-Saharan Africa and the U.S. The prevalence of hypertension varies from 1-30% of the adult population. Differences in blood pressure (BP) between black and white patients have been documented. In this review, genetic, endocrine, and environmental characteristics, renal physiology, and cardiac function are reviewed. Racial differences in renal physiology and socioeconomic status seem to account for BP differences. Black hypertensive patients in sub-Saharan Africa are prone to cerebral hemorrhage, malignant hypertension leading to uremia, and congestive heart failure, whereas coronary artery disease is uncommon. Responses to hypotensive agents like beta-blockers and angiotensin-converting enzyme inhibitors are poor unless these agents are combined with a thiazide diuretic. Black hypertensive patients respond best to diuretics, vasodilators, or calcium channel blockers. A profiled approach to the treatment of hypertension is suggested.