Kyobu geka. The Japanese journal of thoracic surgery
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An 83-year-old woman, who had suffered from idiopathic thrombocytopenic purpura (ITP), was admitted to our hospital because of cardiac heart failure and chest pain. The platelet was 42 x 10(4) in microl. Echocardiography revealed moderate aortic stenosis and regurgitation and left ventricular dysfunction. ⋯ Postoperative echocardiography revealed no perivalvular leakage. Preoperative administration of high-dose immunoglobulin and intraoperative platelet transfusion is very effective to minimize hemorrhagic complication in patients with ITP. We herein report an extremely rare quadricuspid aortic valve complicated with ITP.