Objective:To study the clinical effects of endovascular stent-graft repair for thoracic aortic aneurysm (TDA).
Methods :The clinical records of 32 patients with thoracic aorta dissecting aneurysm, including 26 men and 6 women, who underwent endovascular repair were retrospectively analyzed. The characteristics,location,and anatomic condition of dissecting aneurysm were evaluated using CTA before operation. Under general or local anesthesia,32patients underwent endovascular repair under dynamic DSA. For those patient, 8 Talent,22 Yuhengjia(Beijing) and 2 Microinvasive(Shanghai) stent grafts were used.
Results: Among them 32 patients the distance between  entry tear and left subclavian artery was <1.0 cm in 7 patients, and the left subclavian artery was sealed by grafts in 3 patients after which, the anearysm disappeared and with no ischemia of brain or upper limbs in any of the patients, One of 32 patients with TDA died,and the other 31 patients were alive and well at followed up for 3 to 56 months,  but endoleak occurred in 5 patients discovered by CTA.
Conclusions:Endovascular stent graft repair for aortic anearysm is less invasive, has low complication and mortality rate, and is suitable for old high-risk patients. EVAR can replace conventional open operation for Stanford B dissecting aneurysm.