What is a thoracic endovascular aneurysm repair (TEVAR)?

Vascular specialists can repair aneurysms in the portion of the aorta above the bowel arteries, the thoracic aorta, with a procedure called thoracic endovascular aneurysm repair or TEVAR. This procedure is very similar to that used to repair the upper portions of the aorta (EVAR). During the procedure they insert a catheter into an artery in the groin and, using x-ray guidance, thread the catheter to the damaged area of the aorta. Within the catheter is a stent graft, a tube made of a special synthetic material and a self expanding metal scapholding. At the aneurysm (or dissection) the stent graft is deployed so that it bridges and excludes the thoracic aneurysm. The stent graft provides a reinforced channel for the blood to flow through, reducing the pressure on the damaged area of the artery and helping to prevent a rupture. Patients generally go home within several days.

Mark J. Russo, MD
Thoracic Surgery (Cardiothoracic Vascular)

A thoracic endovascular (TEVAR) stent graft repair is a treatment for aneurysms of the descending thoracic aorta. It is similar to the approach used for a cardiac catheterization of the coronary arteries. This procedure requires only small incisions in the groin. Then the surgeon inserts a catheter through the femoral artery in the groin and with the use of x-ray guidance and specially-designed instruments, the aneurysm can be repaired from inside the aorta by inserting a tube, called a stent-graft. This is possible because the tube, or stent graft, is delivered through the catheter in a collapsed state and then expanded at the site of the aneurysm. 
The tube replaces and reinforces the diseased aortic wall, ensuring continuity of blood flow while preventing further expansion of the aorta, aortic rupture, and/or aortic dissection.

The potential benefits of the procedure include greatly reduced risk, a shorter hospital stay, and a more rapid recovery. 

Isaac George, MD
Thoracic Surgery (Cardiothoracic Vascular)
A thoracic endovascular aneurysm repair (TEVAR) is an innovative procedure that can fix aneurysms without requiring open surgery. A graft made of tightly woven cloth material is loaded on a catheter stent and placed over the aneurysm using wires and catheters. The graft is opened up and blood is excluded from the aneurysm by flowing through the graft instead of the diseased aorta.  

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