CPT® Code 33767

The CPT® Code 33767 refers to a surgical procedure known as the bidirectional Glenn procedure, which involves the creation of a shunt between the superior vena cava and the pulmonary artery to facilitate blood flow to both lungs. This procedure is typically indicated for patients suffering from cyanosis due to congenital heart defects, such as tetralogy of Fallot. The bidirectional Glenn procedure is classified as a closed heart surgery, meaning it is performed without opening the heart itself, and is often utilized as a temporary solution to improve oxygenation in patients with specific cardiac anomalies. During the procedure, the surgeon gains access to the heart and major blood vessels through a median sternotomy, which involves making an incision along the sternum. Cardiopulmonary bypass is then established to maintain circulation and oxygenation while the surgical intervention is performed. The procedure entails connecting the superior vena cava to the right pulmonary artery, allowing blood from the superior vena cava to flow into both pulmonary arteries, thereby enhancing pulmonary blood flow. This is a critical step in managing patients with complex congenital heart conditions, as it helps alleviate symptoms associated with inadequate oxygenation.