CPT® Code 37607

The procedure described by CPT® Code 37607 involves the ligation or banding of an arteriovenous fistula (AVF), which is a surgical intervention primarily aimed at treating a condition known as steal syndrome. Steal syndrome occurs when the blood flow intended for the hand is diverted through the AVF, leading to inadequate blood supply to the hand, resulting in ischemia and pain. This condition is particularly relevant for patients undergoing hemodialysis, as the AVF is created to facilitate the dialysis process by providing easy access to the bloodstream. During the procedure, a surgical incision is made in the lower arm to expose the AVF. The arterial component of the AVF is carefully dissected from the surrounding tissues, allowing for a segment of the AVF to be isolated. The ligation or banding technique is then employed to partially occlude the AVF, which reduces the volume of blood flowing through it. This adjustment is crucial as it aims to redirect more blood flow to the hand, thereby alleviating the symptoms associated with steal syndrome. Following the procedure, the blood flow through both the AVF and the hand is assessed using Doppler ultrasound, and the distal pulses are evaluated to confirm that adequate blood circulation to the hand has been restored.