CPT® Code 0460T

Deleted

The procedure described by CPT® Code 0460T involves the repositioning of a previously implanted aortic counterpulsation ventricular assist device, specifically focusing on the subcutaneous electrode. This device is utilized primarily in the management of acute cardiogenic shock or end-stage chronic heart failure, conditions that severely compromise the heart's ability to pump blood effectively. The aortic counterpulsation ventricular assist system is a sophisticated medical apparatus that includes a pneumatic pump, a console for operation, and electrocardiogram electrodes that synchronize the device's function with the patient's heartbeat. The pump is strategically placed in a subcutaneous pocket above the pectoralis muscle, allowing for a minimally invasive approach. The pneumatic drive line, which is essential for the device's operation, exits through the skin in the right upper abdomen and connects to the console, which drives the pump using pressurized air. An interposition vascular graft is surgically anastomosed to the subclavian artery, facilitating blood flow to the pump. Additionally, subcutaneous electrocardiogram electrodes are positioned on the chest wall and linked to the console, while mechano-electrical skin interface electrocardiogram leads are placed over various arteries, such as the radial artery at the wrist, the digital artery at the finger, or the posterior tibial artery at the ankle. This setup captures the heartbeat and ensures the pump operates in sync with the cardiac cycle. During the procedure, the pump fills with blood during ventricular systole, which reduces the workload of the left ventricle by decreasing afterload. Conversely, during ventricular diastole, the pump ejects blood, thereby enhancing cardiac output and improving both coronary and systemic blood flow. The repositioning process itself involves making an incision to access the pump, subclavian artery, and vascular graft, ensuring that the device is correctly placed within the existing subcutaneous pocket. The vascular graft is inspected for any signs of bleeding, and the pneumatic drive tubing is checked for kinks that could impede function. After repositioning, the subcutaneous electrodes are also adjusted and tested to confirm they adequately capture the heartbeat. Finally, the incisions are closed with sutures, completing the procedure.