[Tricuspid Valve Replacement in a Case of an Adult Patient with Corrected Transposition of the Great Arteries；Report of a Case].

The patient was a 69-year-old man with corrected transposition of the great arteries. Chest X-ray abnormality had been pointed out since his childhood. Recently he was admitted with congestive heart failure. Examination revealed severe regurgitation of the tricuspid valve (systemic atrioventricular valve) with mild systemic ventricular dysfunction. After a median sternotomy, the operation was conducted with the surgeon standing on the patient's left side. Tricuspid valve was approached through left superior atriotomy. Tricuspid valve was facing almost dorsal to the patient, and there was a big cleft between anterior and posterior leaflets. Tricuspid valve replacement with a mechanical valve was performed with leaflets preserved. The patients had a favorable postoperative course.