CPT® Code 33889

Open subclavian to carotid artery transposition performed in conjunction with endovascular repair of descending thoracic aorta, by neck incision, unilateral

The procedure described by CPT® Code 33889 involves an open surgical technique for transposing the subclavian artery to the carotid artery. This operation is performed in conjunction with an endovascular repair of the descending thoracic aorta, utilizing a unilateral neck incision. The procedure begins with an incision in the neck, which is then extended toward the arm, allowing access to the supraclavicular space. During the surgery, the carotid and subclavian arteries are carefully exposed through meticulous soft tissue dissection, ensuring that surrounding vessels and nerves are mobilized and protected throughout the process. The subclavian artery is dissected beneath the clavicle, with the goal of exposing it as close to the aorta as possible. This careful dissection is crucial for the subsequent steps of the procedure, which involve controlling the arteries and performing anastomosis. The use of anticoagulants and vascular clamps is integral to managing blood flow and preventing complications during the surgery. Ultimately, the procedure aims to facilitate proper blood flow from the common carotid artery to the subclavian artery, ensuring that the vascular system remains functional and effective following the repair of the thoracic aorta.