Repair of intracardiac total anomalous pulmonary venous return.

Total anomalous pulmonary venous return is an uncommon congenital anomaly of the pulmonary venous system.  Excision of the common wall between the atrial septum and the coronary sinus and closure with a single patch is a popularly used technique to repair cardiac total anomalous pulmonary venous return. We have used the same approach in our patient: Our tutorial shows a simple method to divert pulmonary venous return into the mitral valve without causing damage to the internodal pathways.  Marking the coronary sinus is highlighted because using that landmark to locate the atrioventricular node is no longer possible after the common wall is cut.