CPT® Code 33974

Removal of intra-aortic balloon assist device from the ascending aorta, including repair of the ascending aorta, with or without graft

The procedure described by CPT® Code 33974 involves the removal of an intra-aortic balloon assist device (IABP) from the ascending aorta, which may include the repair of the ascending aorta itself, with or without the use of a graft. The intra-aortic balloon pump is a mechanical device used to support the heart's function by improving coronary perfusion and decreasing the workload of the heart. This is achieved by inflating the balloon during diastole, which augments blood flow to the coronary arteries, and deflating it during systole, which assists in the ejection of blood from the left ventricle. The procedure typically begins with a median sternotomy to expose the aorta, followed by the placement of a side-biting clamp to facilitate access to the ascending aorta. The IABP is introduced using the Seldinger technique, which is a method for gaining access to the vascular system, and is positioned distal to the left subclavian artery. The device is secured in place with purse-string sutures. In some cases, a synthetic graft may be anastomosed to the aorta in an end-to-side manner to facilitate the introduction of the IABP. The removal of the IABP involves either closing the aorta with sutures or using a patch or tube graft, depending on how the device was initially placed. This procedure is critical for patients who require temporary circulatory support and is performed in a controlled surgical environment to ensure patient safety and optimal outcomes.