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Quinapril in chronic heart failure.

D B Northridge1, H J Dargie

  • 1Department of Cardiology, Western Infirmary, Glasgow, Scotland.

American Journal of Hypertension
|November 1, 1990
PubMed
Summary

Angiotensin converting enzyme inhibitors effectively treat chronic heart failure, improving symptoms and exercise capacity. Quinapril, a new ACE inhibitor, showed promising results in a study for mild to moderate heart failure patients.

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Area of Science:

  • Cardiology
  • Pharmacology

Background:

  • Angiotensin converting enzyme (ACE) inhibitors are standard therapy for chronic heart failure (CHF).
  • These drugs offer hemodynamic benefits without reflex tachycardia or tolerance.
  • ACE inhibitors improve symptoms, exercise capacity, and prognosis in heart failure patients.

Purpose of the Study:

  • To evaluate the efficacy and safety of quinapril, a novel ACE inhibitor, in patients with chronic heart failure.
  • To assess the dose-response relationship of quinapril in improving clinical status and exercise capacity.

Main Methods:

  • A large, multicenter, randomized, placebo-controlled study.
  • 225 patients with mild to moderate CHF were enrolled.
  • Treatment involved daily doses of quinapril ranging from 10 to 40 mg.

Main Results:

  • Quinapril significantly improved clinical status and exercise capacity in a dose-dependent manner.
  • No significant difference in side effect incidence was observed compared to placebo.
  • The hemodynamic effects of quinapril were consistent with other ACE inhibitors.

Conclusions:

  • Quinapril is a promising ACE inhibitor for treating chronic heart failure.
  • Further clinical investigation is warranted to confirm its long-term efficacy and safety.
  • Its intermediate half-life makes it suitable for CHF management.

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