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Stroke, Vol 19, 397-400, Copyright © 1988 by American Heart Association

ARTICLES

Medical treatment of transient ischemic attacks: does it influence mortality?

M Ramirez-Lassepas and RJ Cipolle
Department of Neurology, St. Paul-Ramsey Medical Center, MN 55101.

All randomized studies published on the medical treatment of transient ischemic attacks in which controls received no treatment or placebo and in which mortality was reported were reviewed. Using the odds ratio method, we analyzed the results to determine if treatment had an effect on expected mortality. Studies were analyzed separately according to the treatment modality used. Chronic anticoagulation was used in four studies and platelet inhibitors in 12 (14 trials). This meta-analysis showed that neither treatment modality significantly reduces mortality. Chronic anticoagulation may have an adverse effect, and even though platelet inhibitors appeared to reduce mortality, no significance can be demonstrated, and the 95% confidence intervals did not allow us to rule out the possibility, albeit small, of an adverse effect or no effect at all.

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