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Haemorrhagic stroke during anti-platelet therapy

Published online by Cambridge University Press:  01 February 2008

M. Cattaneo*
Affiliation:
Unità di Ematologia e Trombosi, Dipartimento di Medicina, Chirurgia e Odontoiatria, Ospedale San PaoloUniversità di Milano, Milano, Italy
*
Correspondence to: Marco Cattaneo, Unit of Hematology and Thrombosis, Ospedale San Paolo, DMCO, University of Milano, Via di Rudinì, 8. 20142 Milano, Italy. E-mail: marco.cattaneo@unimi.it; Tel/Fax: +39 02 89121827
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Summary

Drugs that inhibit platelet function are widely used to decrease the risk of occlusive arterial events in patients with atherosclerosis. There are three families of anti-platelet agents with proven clinical efficacy: (1) cyclo-oxygenase inhibitors, such as aspirin; (2) adenosine diphosphate receptor antagonists, such as the thienopyridine compounds ticlopidine and clopidogrel; and (3) glycoprotein IIb/IIIa antagonists. All these drugs are used during coronary interventions and in the medical management of acute coronary syndromes, while only aspirin and thienopyridine compounds are used in the long-term prevention of cardiovascular and cerebrovascular events in patients at risk. Despite the good risk-to-benefit ratio of anti-platelet agents, the risk of severe bleeding complications, including cerebral haemorrhage, is slightly increased, albeit to a much lesser extent than that associated with the use of other antithrombotic drugs, such as anticoagulants or thromobolytic agents. In addition, it must be noted that the increased incidence of haemorrhagic stroke is usually outweighed by a significant decrease in the incidence of ischaemic strokes. The combination of aspirin and vitamin K antagonists may be associated with the heightened risk of cerebral haemorrhage, compared to treatment with either drug alone.

Type
Original Article
Copyright
Copyright © European Society of Anaesthesiology 2008

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