A Case of Tricuspid Valve Repair with Artificial Chordae after Resection of Tricuspid Valve Myxoma / 日本心臓血管外科学会雑誌

ABSTRACT

Tricuspid valve myxoma is extremely rare. A 33-year-old woman who had undergone clipping of a cerebral aneurysm, had a cardiac tumor pointed out incidentally while undergoing echocardiography. Echocardiography showed a mobile and solid round mass (14×12 mm) attached by a short stalk. We suspected a right ventricular tumor. Once the diagnosis of cardiac tumor has been established, prompt excision is essential to prevent complications, as well as syncope or collapse due to the transient occlusion of the tricuspid or pulmonary valves with embolization by the thrombus or fragments of the tumor tissue. Surgery was performed under cardiopulmonary bypass. The tumor was attached to the anterior papillary muscle and chordae of the tricuspid valve. The tumor was extirpated along with a piece of the papillary muscle and chordae. We performed tricuspid chordoplasty with artificial chordae. The histopathologic diagnosis was myxoma. The postoperative course was uneventful and the patient was discharged on the 15th day after the operation. While the patient has done well with no recurrence of the tumor during the five years that have passed since her operation, we will continue to observe her closely in the future because there have been some reports of recurrence after complete excision of cardiac myxoma and there are no long-term follow-up results of artificial chordae in the tricuspid position.