Clinical value of percutaneous endovascular stent exclusion under DSA in treatment of Stanford type B aortic dissection

Abstract

Objective: To investigate the clinical value of the stent lumen isolation belt membrane technique (endovascular graft exclusion, EVGE) in the treatment of Stanford type B aortic dissection (AD) with the digital subtraction angiography (DSA) . Methods: From January 2015 to December 2015, 30 Stanford type B AD patients were involved in this study. Fifteen patients were treated with EVGE by DSA and blood vessel suture instrument as observation group, then other 15 patients treated with EVGE through the exposed femoral artery, respectively, were set to control group, the clinical data of two groups of patients were retrospectively recorded, such as surgery and postoperative recovery time and local vascular complications, and the vascular diameter, quality of life score and stent displacement were compared between the two groups after 3 months follow-up. Results: The surgical success rates of two groups had no statistically significant difference (93.3% vs. 100.0%, χ2=1.03, P>0.05) . In observation group, intraoperative blood loss was lower than that in the control group[ (43.57±14.30) ml vs. (69.82±25.18) ml, t=3.51, P 0.05) , and stent shifting did not happen. Conclusions: The belt membrane bracket EVGE could effectively guarantee the success rate of surgery and prognosis of patients, reduce intraoperative bleeding and postoperative local vascular complications, and accelerate the postoperative recovery for the Stanford type B aortic dissection patients. Key words: Stanford B type; Aortic dissection; Intraventricular isolation; Digital subtraction angiography