右冠状動脈起始異常に対する治療の1例

Anomalous Aortic Origin of a Right Coronary Artery：Report of a Case

はじめに　健康な若年者の突然死においては，冠状動脈異常の割合が高いことが示唆されている1）．われわれは，心肺停止蘇生後の原因検索で判明した右冠状動脈（RCA）起始異常に対して手術を行い，良好な経過をたどった症例を経験したので報告する．

An anomalous right coronary artery originating from the left Valsalva is rare, but sometimes causes sudden cardiac death in a healthy young to middle-aged patient. We present a case of 30-year-old male who was suggested from cardiopulmonary arrest, during playing basketball. He was resuscitated using automated external defibrillator, and was brought to the emergency department. Electrocardiogram showed no ST segment elevation. Coronary angiography and computed tomography revealed anomalous right coronary artery, which originated from the left sinus of Valsalva, and ran between the aorta and the pulmonary artery trunk. Coronary artery bypass grafting was performed using the right internal thoracic arterial graft, with proximal native coronary artery ligation. He was discharged on the nineth postoperative day and had no chest symptoms for seven months.