CPT® Code 33611

The procedure described by CPT® Code 33611 involves the surgical repair of a double outlet right ventricle (DORV) utilizing an intraventricular tunnel repair technique. DORV is a congenital heart defect characterized by both the aorta and pulmonary artery originating from the right ventricle, which can lead to significant hemodynamic complications. In this condition, a ventricular septal defect (VSD) is also present, serving as the sole outlet for blood from the left ventricle. The creation of an intraventricular tunnel is essential as it facilitates the proper flow of oxygenated blood from the left ventricle through the VSD into the aorta, thereby improving systemic circulation. The surgical approach typically involves establishing cardiopulmonary bypass to maintain blood circulation and oxygenation during the procedure. The surgeon gains access to the heart by incising the right atrium and carefully inspecting the heart's anatomy, particularly the VSD and its relationship to the aorta. This meticulous repair process may involve enlarging the VSD if necessary and constructing a tunnel that connects the left ventricle to the aorta, using materials such as pericardium or synthetic grafts. The procedure is complex and requires precise surgical techniques to ensure successful outcomes and minimize complications.