CPT® Code 35341

Thromboendarterectomy is a surgical procedure aimed at removing a thrombus, which can be a blood clot or atherosclerotic plaque, from the walls of an occluded artery. This procedure is specifically performed on the abdominal aorta or the mesenteric, celiac, or renal arteries. The process begins with an incision in the abdomen to expose the affected blood vessel. Once the thrombosed section is identified, it is carefully isolated and dissected from surrounding structures. To maintain blood flow during the procedure, a temporary shunt may be placed. Vascular clamps are then applied both proximal and distal to the obstructed area to control blood flow. The artery is incised, allowing for the removal of the thrombus and any associated plaque. The intima, which is the inner lining of the artery, is also removed to enhance the diameter of the vessel. After the thrombus and intima are excised, the remaining healthy intima is sutured back to the artery walls. The artery is then repaired either through primary suturing or by using a patch graft, which can be either venous or synthetic, to further enlarge the vessel's diameter. If a shunt was utilized, it is removed before the clamps are taken off, allowing blood flow to resume. Finally, the surgical site is closed in layers, ensuring proper healing and recovery.