CPT® Code 33736

The procedure described by CPT® Code 33736 refers to an atrial septectomy or septostomy performed through an open heart technique with the assistance of cardiopulmonary bypass. This surgical intervention is primarily indicated for patients suffering from transposition anomalies of the great vessels, where the normal flow of oxygenated and deoxygenated blood is disrupted. The aim of the procedure is to create an opening in the atrial septum, which is the wall separating the right and left atria of the heart, thereby improving oxygen saturation levels in the bloodstream. The operation is conducted under general anesthesia and requires the use of cardiopulmonary bypass to maintain circulation and oxygenation while the heart is temporarily stopped. The surgical approach involves a median sternotomy, which provides direct access to the heart, allowing the surgeon to excise the atrial septum effectively. This procedure is particularly beneficial for patients with a thick atrial septum, as it facilitates better management of their condition and enhances overall cardiac function.