The use of a special ringclamp for the approach of large atria.
D054087:Atrial Septum; D006348:Cardiac Surgical Procedures; D006325:Heart Atria; D006330:Heart Defects, Congenital; D006346:Heart Septum; D013903:Thoracic Surgery
HEART DEFECTS, CONGENITAL; HEART SEPTUM ATRIAL; HEART SURGERY