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Individualised selection of antihypertensive therapy
1Medical Research Council Ischaemic Heart Disease Research Unit, University of Cape Town Medical School, South Africa.
Insights
Choosing the right hypertension medication is key. Diuretics and calcium antagonists are good initial choices for elderly and Black patients, while beta-blockers suit those with heart issues. Angiotensin converting enzyme inhibitors are also considered.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Individualized treatment for hypertension is possible with numerous available drugs.
- Sequential stepped-care therapy is outdated; initial monotherapy is recommended.
Purpose of the Study:
- To guide the selection of first-line antihypertensive agents based on patient characteristics and drug properties.
- To review the evidence supporting initial monotherapy choices for hypertension management.
Main Methods:
- Review of available antihypertensive drug classes and their pharmacological/clinical properties.
- Analysis of outcome trials, particularly in the elderly population.
- Consideration of specific patient populations and comorbidities for drug selection.
Main Results:
- Diuretics and calcium antagonists are first-line options for elderly and Black patients.
- Beta-blockers are preferred for ischemic heart disease or high adrenergic drive.
- Alpha-blockers suit patients with lipid abnormalities or prostate issues.
- Calcium antagonists or ACE inhibitors are favored for quality of life and metabolic neutrality.
- Calcium antagonists are more effective than ACE inhibitors in high salt intake, Raynaud's, angina, and Black patients.
- ACE inhibitors are preferred for combination with diuretics, heart failure, or low salt intake.
- Both calcium antagonists and ACE inhibitors show potential in preventing ischemic ventricular fibrillation and atheroma.
Conclusions:
- Initial antihypertensive therapy selection should be tailored to individual patient needs and specific drug profiles.
- Combination therapy with calcium antagonists and ACE inhibitors is increasingly accepted due to theoretical benefits.
Abstract:
Theoretically, it should be possible to match the requirements of individual patients with the pharmacological and clinical properties of the large number of antihypertensive drugs now available. The concept of automatic sequential stepped-care therapy is now largely outdated, but therapy of clinically important hypertension must be initiated with one agent. Diuretics remain a first-line option in the elderly and in Black patients, as do calcium antagonists. Outcome trials are available only for the elderly, and in these the benefits of initial diuretic therapy are well documented. Nonetheless, diuretics may often need to be co-prescribed with a beta-blocker or an adrenergic modifier such as methyldopa. beta-Blockers are preferred in patients with ischaemic heart disease or enhanced adrenergic drive, while alpha-blockers are preferred in patients with blood lipid abnormalities or prostatic problems. Calcium antagonists or angiotensin converting enzyme (ACE) inhibitors are being increasingly used as initial therapy when quality of life is important and metabolic neutrality is required. Calcium antagonists are more likely to be effective first-line therapy than ACE inhibitors in patients with a high salt intake, in patients with Raynaud's disease, when angina pectoris is present, and in Black patients. ACE inhibitors are preferred for combination with diuretic agents, and in the presence of congestive heart failure or low salt intake. Experimentally, both calcium antagonists and ACE inhibitors can prevent ischaemic ventricular fibrillation and atheroma. Combination therapy between these 2 drug classes is gaining increasing acceptance because of these theoretical advantages.(ABSTRACT TRUNCATED AT 250 WORDS)