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Hypertension and coronary artery disease: an unsolved problem

L E Ramsay1, W W Yeo

  • 1University Department of Medicine & Pharmacology, Royal Hallamshire Hospital, Sheffield, England.

Journal of Cardiovascular Pharmacology
|January 1, 1991
PubMed

Insights

Drug treatment for hypertension significantly lowers stroke risk and prevents heart and kidney failure. However, its impact on coronary artery disease prevention is less than expected, suggesting alternative strategies are needed.

Area of Science:

  • Cardiovascular Medicine
  • Pharmacology
  • Public Health

Background:

  • Hypertension is a major risk factor for cardiovascular events.
  • Antihypertensive drug therapy is widely used to manage high blood pressure.
  • Previous studies indicated significant benefits of blood pressure reduction.

Purpose of the Study:

  • To evaluate the effectiveness of antihypertensive drug treatment on coronary artery disease.
  • To compare the observed reduction in coronary events with anticipated reductions from epidemiological data.
  • To assess the potential impact of drug side effects on coronary event rates.

Main Methods:

  • Analysis of major clinical trials on drug treatment for hypertension.
  • Comparison of actual coronary event reduction with expected values.
  • Estimation of potential shortfall in coronary prevention attributable to drug effects.

Main Results:

  • Antihypertensive drugs reduced stroke incidence by 40% and prevented cardiac/renal failure.
  • Coronary events were reduced by approximately 14%, lower than the 20-25% anticipated.
  • The shortfall in coronary prevention potentially attributable to drug effects was estimated at 6-11%.

Conclusions:

  • Current antihypertensive drugs show less efficacy in preventing coronary events than expected.
  • There is no clear preference for any drug class for coronary prevention.
  • Further research into strategies beyond blood pressure reduction is necessary for coronary disease prevention in hypertensive patients.

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