An unusual case resulted from a motor vehicle accident presented with hemo-mediastinum and left pneumohemo～throrax and delayed anterior myocardial infarction. Further examination revealed a traumatic transection of left anterior descending coronary artery and a thoracic ortic rupture. Percutaneous revascularization of the left anterior descending artery was unsuccessful because the gidewire failed to pass through the stenosis, but aortic disruption was successfully stented with a stent graft. The patient recovered well, but aneurysm of cardiac anterior wall and decreased heart function remained.