[Totally Endoscopic Surgery for the Left Atrial Myxoma and the Atrial Septal Defect:Report of a Case].

A 60-year-old woman was admitted to our institution for exertional dyspnea. Transthoracic echocardiography revealed a 1.6 cm secundum atrial septal defect( ASD) and a 4.2×3.1 cm mobile left atrial mass originating from the ASD. The tumor migrated to the mitral valve during diastole and to the atrial septal defect during systole. A totally endoscopic approach via a small right thoracotomy was adopted to resect the mass and close the ASD with a Hemashield patch. Histopathologic examination of the excised mass was consistent with myxoma. The postoperative course was uneventful. A 2-year follow-up revealed no recurrence of the myxoma and ASD.