CPT® Code 33681

A ventricular septal defect (VSD) is a congenital heart defect characterized by one or more abnormal openings in the septum that separates the heart's ventricles. This condition can lead to significant hemodynamic changes and requires surgical intervention for correction. The procedure associated with CPT® Code 33681 involves the closure of a single VSD, which can be performed with or without the use of a patch. To initiate the procedure, a surgical incision is made in the chest to gain access to the heart. The pericardium, which is the fibrous sac surrounding the heart, is incised, and a patch may be harvested if necessary for the repair. Once access is achieved, cardiopulmonary bypass is initiated to maintain circulation and oxygenation during the surgery. The closure of the VSD is typically performed through an incision made in the right atrium, pulmonary artery, or the outflow tract of the right ventricle, known as the infundibulum. The defect is repaired using sutures or, if a patch is indicated, a synthetic material or the previously harvested pericardial patch is sutured over the defect to ensure a secure closure. After the repair is completed, the access incision is closed, and cardiopulmonary bypass is discontinued. Following the procedure, chest tubes are placed to facilitate drainage, and the chest incision is closed. This surgical intervention is critical for preventing complications associated with VSDs, such as heart failure and pulmonary hypertension, and is a vital part of managing congenital heart defects in affected patients.