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Transient ischemic attacks: an update.

P Scheinberg1

  • 1Department of Neurology, University of Miami School of Medicine, FL.

Journal of the Neurological Sciences
|February 1, 1991
PubMed
Summary

Transient ischemic attacks (TIAs) are linked to coronary artery disease. Aspirin (ASA) effectively reduces stroke and heart attack risk in TIA patients, while carotid endarterectomy lacks proven indications.

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Area of Science:

  • Neurology
  • Cardiology
  • Vascular Surgery

Background:

  • Transient ischemic attacks (TIAs) require clear definitions and understanding of their prognostic significance.
  • Established associations exist between TIAs and coronary artery disease.
  • Pathogenesis of TIAs can be complex, with emerging mechanisms beyond traditional perfusion impairment or embolization.

Purpose of the Study:

  • To review current concepts of TIAs, including definitions, prognosis, pathogenesis, physiology, and management.
  • To evaluate the evidence for current TIA management strategies.
  • To highlight the need for controlled trials in TIA research.

Main Methods:

  • Review of extant literature on transient ischemic attacks (TIAs).
  • Analysis of definitions, prognostic significance, pathogenesis, physiology, and management.
  • Evaluation of therapeutic trial methodologies and existing data on interventions.

Main Results:

  • A strong association between TIAs and coronary artery disease is established.
  • Carotid endarterectomy lacks proven indications, despite historical overuse.
  • Aspirin (ASA) is supported by data for reducing stroke and myocardial infarction incidence in TIA patients.

Conclusions:

  • Therapeutic trials for TIAs must be controlled and randomized, not relying on historical natural history data.
  • Current evidence does not support long-term anticoagulation for TIAs.
  • Ongoing multi-center studies are expected to clarify the role of carotid endarterectomy.

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