Advertisement

What is a thoracic endovascular aneurysm repair (TEVAR)?

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.  
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. 

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.

Continue Learning about Aneurysms

Aneurysms: Deadly but Preventable
Aneurysms: Deadly but Preventable
We rely on our arteries to carry oxygen-rich blood to all the organs, muscles and tissues of the body. Every beat of the heart sends more blood throug...
Read More
What happens before an endovascular aneurysm repair (EVAR)?
Brigham and Women's HospitalBrigham and Women's Hospital
Endovascular aneurysm repair (EVAR) is a minimally invasive (without a large abdominal incision) pro...
More Answers
How common are abdominal aortic aneurysms (AAA)?
Dr. Michael L. Schwartz, MDDr. Michael L. Schwartz, MD
Abdominal aortic aneurysms (AAA) are uncommon, occurring in approximately 5 percent of the populatio...
More Answers
How can chronic inflammation lead to aortic aneurysms?
Stephen R. Hazelrigg, MDStephen R. Hazelrigg, MD
Inflammation in the wall of the artery can ultimately weaken it, causing the artery to stretch or ex...
More Answers

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.