CPT® Code 33910

The procedure described by CPT® Code 33910 refers to a pulmonary artery embolectomy performed with the assistance of cardiopulmonary bypass. This surgical intervention is aimed at removing an embolus, which is a blockage in the pulmonary arteries that can impede blood flow to the lungs. The procedure typically involves accessing the pulmonary arteries through a median sternotomy or thoracotomy, which are surgical approaches that allow the surgeon to reach the heart and lungs effectively. During the operation, the main pulmonary artery and its branches are carefully dissected from the surrounding tissues to provide clear access for the removal of the embolus. If cardiopulmonary bypass is utilized, it involves cannulating the aorta and the superior and inferior vena cava to divert blood flow, allowing the heart and lungs to be temporarily bypassed while the surgery is performed. The pericardium, which is the protective sac surrounding the heart, is incised to facilitate access to the main pulmonary artery, which is then opened to locate and remove the embolus. This procedure is critical in restoring normal blood flow and preventing further complications associated with pulmonary embolism.