Pamukkale Üniversitesi Tıp Fakültesi, Kalp ve Damar Cerrahisi AD, Denizli

A 13-year-old girl underwent surgical treatment for cor triatriatum sinister and a secundum atrial septal defect that presented with tachycardia and exercise intolerance. The diagnosis was made by echocardiography. Separation on the diaphragmatic membrane was 0.4 cm. The anomaly was accompanied by a secundum atrial septal defect and pulmonary hypertension. The fibromuscular membrane was resected via a left atriotomy and the atrial septal defect was primarily closed. The patient was discharged on the sixth postoperative day without any complications.