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Management of hypertension in diabetes
1Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas.
Insights
Early detection and treatment of hypertension in diabetic patients are crucial. Antihypertensive therapy can slow diabetic nephropathy, but more research is needed on cardiovascular outcomes and metabolic effects.
Area of Science:
- Cardiology
- Nephrology
- Endocrinology
Background:
- Hypertension significantly increases morbidity and mortality in diabetic individuals.
- Hypertension contributes to both atherosclerosis and microvascular complications in diabetes.
- Diabetic nephropathy progression can be slowed by antihypertensive treatment.
Purpose of the Study:
- To review the impact of antihypertensive treatment on diabetic patients.
- To highlight the need for studies on cardiovascular outcomes in diabetic patients undergoing antihypertensive therapy.
- To discuss the metabolic effects of antihypertensive drugs in diabetes.
Main Methods:
- Review of existing literature on hypertension in diabetes.
- Analysis of the role of antihypertensive regimens in diabetic nephropathy.
- Discussion of the metabolic implications of antihypertensive drug classes.
Main Results:
- Antihypertensive treatment is vital for managing diabetic complications.
- Prospective studies are lacking on major cardiovascular events (heart failure, stroke, coronary artery disease) in diabetic patients on antihypertensives.
- Certain antihypertensive agents (ACE inhibitors, calcium channel blockers, alpha-blockers) may have a more favorable metabolic profile than others (diuretics, beta-blockers).
Conclusions:
- Early hypertension management is essential for diabetic patients.
- Further research is required to understand the long-term cardiovascular and metabolic effects of antihypertensive drugs in diabetes.
- ACE inhibitors, calcium channel blockers, and alpha-adrenergic blockers are recommended as initial antihypertensive choices for most diabetic patients.
Abstract:
Hypertension should be detected and treated early in diabetic patients. It markedly affects the morbidity and mortality of diabetic individuals as a result of both atherosclerosis and microvascular disease. Antihypertensive treatment is an effective tool in slowing the progression of early and advanced diabetic nephropathy. No prospective studies have addressed the effects of antihypertensive regimens on the incidence of congestive heart failure, stroke, and coronary artery disease in large groups of diabetic patients. Such studies are urgently needed. Special consideration should be given to the effects of antihypertensive drugs on glycemic control and the lipid profile of the diabetic patient. Because hyperinsulinemia (and insulin resistance) have been advocated as hypertensive and atherosclerotic risk factors, the effects of antihypertensive drugs on insulin action and plasma insulin levels may become an important element in the selection an antihypertensive agent. More information, however, is needed in these areas. ACE inhibitors, calcium channel blockers, and alpha-adrenergic blockers probably offer a more favorable metabolic profile as compared with diuretics and beta-blockers. The former agents should be used as initial drugs in most clinical settings.