Between January 1989 and August 1994, 6 patients with true transverse aortic arch aneurysm combined with coronary artery disease (CAD) were operated in our institute. They had the simultaneous revascularization for both lesions. There were no cardiac deaths at early and late result. The present data suggested that the patient who underwent successful coronary artery bypass grafting have the same risk for transverse aortic arch aneurysm operations as the patients without CAD.