A Case Report of Completely Unroofed Coronary Sinus without Persistent Left Superior Vena Cava.

Abstract

A 47-year-old woman complained of dyspnea on exertion.Ultrasonic cardiography revealed coronary sinus type atrial septal defect. At operation, the drainage veins to the left atrium from the coronary arteries were observed but no anomalies of the vena cave or any other veins were observed.The defect was closed with a pericardial patch under cardiopulmonary bypass. The post-operative course was uneventful. Coronary arteriography performed on the 14th post operative day confirmed that the coronary veins drained individually into the corresponding atria. Unroofed coronary sinus is rare and difficult to diagnose prior to operation.Ultrasonic cardiography and coronary arteriography are considered useful for preoperative diagnosis. Jpn. J.