The article presents review of the function of thrombocytes in the haemocoagulation system with emphasis on the thrombogenesis in acute coronary syndromms. It explains the function and importance of antiplatelet therapy together with its pathophysiological basis. Pharmacodynamic and pharmacokinetic data of the antiplatelet drugs are described. The authors explain importance of these details for every day anaesthesia

        Key words: haemocoagulation system -thrombocytes - acute coronary syndrom - antiplatelet therapy