Transradial coronary stent placement in a patient with severe idiopathic autoimmune thrombocytopenic purpura.

A 62-year-old man with refractory, idiopathic, autoimmune thrombocytopenic purpura developed unstable angina. Despite a platelet count of 3,000, transradial cardiac catheterization and coronary stent placement in the left anterior descending coronary artery were successfully performed. The patient was treated with clopidogrel for two weeks and aspirin for four weeks without adverse event.