Acute profound thrombocytopenia after abciximab therapy during coronary angioplasty

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Abstract
Since the extensive use of abciximab, a potent antiplatelet agent directed against GP IIb/IIIa platelet receptors, to prevent ischemic complications of percutaneous transluminal coronary angioplasty, few cases of thrombocytopenia have been observed. This paper reports a case of acute profound thrombocytopenia (platelet count: 800/mm3) occurring 16 h after abciximab therapy during coronary angioplasty. As thrombocytopenia occurrence is not predictable, platelet count should be evaluated periodically after drug administration. Mechanisms of this adverse effect remain unknown. Platelet transfusion results in a rapid and sustained improvement of platelet count, avoiding the occurrence of major hemorrhagic complications.