The Annals of Thoracic Surgery, Vol 50, 767-770, Copyright © 1990 by The Society of Thoracic Surgeons
Unusual opening of coronary sinus in atrioventricular septal defects
BR Wilcox, RH Anderson, GW Henry and SS Mattos
Division of Cardiothoracic Surgery, University of North Carolina School of Medicine, Chapel Hill.
The coronary sinus is an important landmark for the position of the atrial
component of the atrioventricular conduction axis and, thus, assumes
special relevance to the surgeon in the operating room. We describe here 2
patients with atrioventricular septal defect characterized by an unusual
termination of the coronary sinus within the left atrium. We discuss the
potential importance of this finding to the disposition and surgical
avoidance of the conduction tissues.