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Long-term clinical trials in hypertension

R W Gifford1

  • 1Department of Hypertension and Nephrology, Cleveland Clinic Foundation, Ohio 44195-5042.

Journal of Hypertension. Supplement : Official Journal of the International Society of Hypertension
|June 1, 1990
PubMed

Insights

Diuretic-based antihypertensive therapy effectively reduces cerebrovascular events and improves cardiovascular health across diverse populations. This approach is recommended for hypertension management, especially in elderly patients.

Area of Science:

  • Cardiology
  • Pharmacology
  • Clinical Trials

Background:

  • Long-term clinical trials provide evidence for antihypertensive therapies.
  • Diuretic-based therapy has a history of reducing cardiovascular events.

Purpose of the Study:

  • To summarize the established benefits of diuretic-based antihypertensive therapy.
  • To discuss the initiation threshold for antihypertensive treatment.
  • To evaluate the role of diuretics in elderly patients with hypertension.

Main Methods:

  • Review of long-term clinical trial data on antihypertensive therapies.
  • Analysis of outcomes related to cerebrovascular events, left ventricular hypertrophy, retinopathy, and hypertension progression.
  • Consideration of patient demographics including age, race, and gender.

Main Results:

  • Diuretic-based therapy consistently reduced fatal and non-fatal cerebrovascular events across all demographics.
  • ECG left ventricular hypertrophy, retinopathy, and hypertension progression were reduced.
  • Cardiomegaly and ECG left ventricular hypertrophy were reversed.
  • Elderly patients (up to age 80) with diastolic hypertension benefit from diuretics.

Conclusions:

  • Initiating antihypertensive therapy is recommended when diastolic blood pressure is ≥ 90 mmHg after non-pharmacologic treatment.
  • Diuretic-based therapy is a proven effective strategy for managing hypertension and preventing cardiovascular complications.
  • Further long-term trials are needed to compare diuretics with ACE inhibitors and calcium channel blockers as initial therapies.

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