Stenting for middle aortic syndrome caused by Takayasu arteritis-immediate and long-term outcomes

Abstract

Objective: To evaluate immediate and long-term clinical outcomes of stenting for middle aortic syndrome (MAS) caused by Takayasu arteritis (TA). Background: Studies of endovascular stenting for the treatment of MAS caused by TA are scare. Methods: Data from 48 consecutive TA patients (mean 33.3 ± 12.6 years) with MAS treated by stenting in our institution between January 2010 and July 2016 were collected and retrospectively analyzed. Thirty-day and long-term follow-up clinical outcomes after aorta stenting were assessed. Results: Stenting was successful in all patients. The mean stenosis and peak systolic pressure gradient of aorta lesions were reduced from 81.3 ± 8.0% and 70.7 ± 18.4 mm Hg to 14.7 ± 8.3% and 14.0 ± 5.8 mm Hg immediately after the 54 stents were implanted. One patient developed retroperitoneal hemorrhage and one developed flow-limiting dissection that involved bilateral renal arteries perioperatively. Both patients recovered without sequela. Compared with baseline, the ankle brachial index (0.92 ± 0.19 vs. 0.75 ± 0.22), mean systolic blood pressure (149.5 ± 19.1 vs. 179.0 ± 28.4 mm Hg) and antihypertensive drugs (1.1 ± 0.7 vs. 3.1 ± 0.9) significantly improved after an average follow-up of 3.1 years (all P