Aspirin in coronary heart disease. Comparison of six clinical trials

Israel Journal of Medical Sciences
|May 1, 1983
PubMed

Insights

Daily aspirin use in post-myocardial infarction (MI) patients showed a 10% reduction in total mortality, particularly in the first year. However, aspirin also increased risks of gastrointestinal side effects and elevated blood pressure.

Area of Science:

  • Cardiology
  • Clinical Pharmacology

Background:

  • Post-myocardial infarction (MI) management aims to reduce mortality and reinfarction.
  • Aspirin is a widely used antiplatelet agent with known benefits and risks.

Purpose of the Study:

  • To meta-analyze randomized, placebo-controlled trials of aspirin in post-MI patients.
  • To quantify the overall effect of aspirin on mortality and morbidity after MI.

Main Methods:

  • Combined data from six randomized, placebo-controlled clinical trials.
  • Included 10,703 patients who had experienced a myocardial infarction.
  • Adjusted for prognostically important baseline factors.

Main Results:

  • Aspirin demonstrated a 10% reduction in total mortality (P = 0.044).
  • Beneficial effects were most pronounced in the first year post-MI.
  • Significant reductions in nonfatal MI and MI-related hospitalizations were observed.
  • Adverse effects included gastrointestinal issues (stomach pain, heartburn, vomiting), elevated systolic blood pressure (>160 mm Hg), and increased serum urea nitrogen and uric acid levels.

Conclusions:

  • Daily aspirin therapy offers a significant survival benefit for post-MI patients.
  • The benefits of aspirin in reducing mortality and reinfarction must be weighed against its potential adverse effects.
  • Further research may explore optimal duration and patient selection for aspirin therapy.

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