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[Indications for antiplatelet medications]

A Castaigne1, S Benacerraf, A Le Roux

  • 1Fédération des services de médecine cardiologique, Hôpital Henri-Mondor, Créteil.

La Revue Du Praticien
|December 3, 1999
PubMed

Insights

Platelet-active drugs, including aspirin and newer agents, are effective antithrombotics. Optimal dosing and specific patient populations determine their clinical benefit in preventing cardiovascular events.

Area of Science:

  • Pharmacology
  • Cardiovascular Medicine
  • Neurology

Context:

  • Platelet-active drugs are crucial antithrombotics.
  • Current clinical practice does not routinely assess their biological effects.
  • Randomized controlled trials (RCTs) have established their clinical efficacy.

Purpose:

  • To review the established clinical efficacy of various platelet-active drugs.
  • To highlight optimal dosing strategies and specific indications for antithrombotic therapy.
  • To compare the effectiveness of aspirin, ticlopidine, clopidogrel, dipyridamole combinations, and glycoprotein IIb/IIIa antagonists.

Summary:

  • Aspirin is effective in coronary artery disease and secondary stroke prevention, reducing myocardial infarction, stroke, and cardiac death. Doses between 75-300 mg are recommended, emphasizing the lowest effective dose.
  • Ticlopidine and clopidogrel show superiority over aspirin in reducing myocardial infarction in patients with lower limb atherosclerosis and post-stroke.
  • Dipyridamole and aspirin combination therapy is superior to aspirin alone for secondary stroke prevention. Glycoprotein IIb/IIIa antagonists reduce myocardial infarction in acute coronary syndromes and angioplasty but do not impact 6-month mortality.

Impact:

  • Provides evidence-based guidance on selecting and dosing antithrombotic agents.
  • Informs clinical practice for secondary prevention of cardiovascular and cerebrovascular events.
  • Identifies specific patient subgroups that benefit most from different antiplatelet therapies.

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