CPT® Code 35616

A bypass graft, specifically a subclavian-axillary bypass graft, is a surgical procedure designed to create an alternative pathway for blood flow around a diseased or obstructed segment of the artery. This procedure utilizes a synthetic graft rather than a vein, which is significant in cases where the patient's veins may not be suitable for grafting. The subclavian artery, located beneath the collarbone, is often involved in this type of surgery, particularly when there is an obstruction in the axillary artery, which is located in the upper arm. The procedure begins with an incision made at the base of the neck, allowing access to the subclavian artery. A second incision is made in the arm to access the axillary artery. A tunnel is then created to connect these two sites, facilitating the placement of the synthetic graft. This graft is carefully sutured to both the subclavian and axillary arteries, ensuring that blood can flow freely around the obstruction. The use of Doppler ultrasound during the procedure allows the surgeon to confirm that blood flow through the graft is adequate, and the evaluation of distal pulses ensures that the bypass is functioning properly. This procedure is critical for restoring adequate blood circulation to the arm and preventing complications associated with arterial obstruction.