CPT® Code 33688

Closure of single ventricular septal defect, with or without patch; with removal of pulmonary artery band, with or without gusset

The procedure described by CPT® Code 33688 involves the surgical closure of a single ventricular septal defect (VSD), which is a congenital heart defect characterized by an abnormal opening in the septum that separates the heart's ventricles. This defect can lead to significant complications, including increased blood flow to the lungs and potential heart failure if not addressed. The surgical approach requires a thoracotomy, where an incision is made in the chest to gain access to the heart. The pericardium, the protective sac surrounding the heart, is incised to facilitate the procedure. Cardiopulmonary bypass is initiated to maintain circulation and oxygenation while the heart is being operated on. During the closure of the VSD, the surgeon may utilize sutures or a patch to effectively seal the defect. If a patch is necessary, it can be made from synthetic materials or harvested from the patient's own pericardium. The procedure may also involve the removal of a previously placed pulmonary artery band, which is a temporary measure used to control excessive blood flow to the lungs and prevent complications such as pulmonary hypertension. The surgical team evaluates the pulmonary artery pressures during the procedure, and if necessary, a gusset may be placed to enlarge the diameter of the pulmonary artery, ensuring proper blood flow post-repair. This comprehensive approach aims to correct the defect while addressing any associated complications, ultimately improving the patient's cardiac function and quality of life.