To facilitate combined aortic and mitral valve operations, a new approach was developed. It was employed in 50 patients with both aortic and mitral valve disease. The ascending aorta was transected 1.5 cm above the aortic annulus, and the roof of the left atrium was incised. The damaged valves were replaced or repaired. Both aortic and mitral valves could be exposed satisfactorily by this approach. All patients recovered smoothly after the operation. Complications comprised intraoperative bleeding from the distal end of the ascending aorta in 1 patient and hoarseness in 3 postoperatively. The approach was considered quick and easy for combined valve operations.