Repair of complete atrioventricular septal defect Sept. 21, 2020 Overview Show transcript Overview Elizabeth H. Stephens, M.D., Ph.D., a pediatric and congenital cardiac surgeon at Mayo Clinic in Rochester, Minnesota, discusses the anatomy, physiology and surgical management of atrioventricular septal defects, also called canal defects. Each of the various canal defects — including complete, intermediate, transitional and partial — is characterized by different degrees of mitral and tricuspid valve involvement and holes in the atrial and ventricular septum of the heart. Share Doximity Facebook LinkedIn Twitter Print details Receive Mayo Clinic news in your inbox. Sign up VID-20507825 Medical Professionals Repair of complete atrioventricular septal defect