ABSTRACT
Objective:To evaluate Castor single-branch covered-stent in the treatment of Stanford B aortic dissection(TBAD)with insufficient anchorage zone.Methods:Clinical data of 25 TBAD patients (proximal healthy landing zone ≤15 mm) treated with Castor branched stent-graft at Weifang People's Hospital from Apr 2019 to Sep 2021 were analyzed retrospectively.The stent model was selected according to preoperative CTA examination and intraoperative angiography,the operation result and follow up data were reviewed.Results:The operation success rate was 100%,the mean operative time was (137.8±35.8)min, and the mean blood loss was (52.8±24.5)ml. There were 2 cases of internal leakage (IA) and it was disappeared after balloon dilation, Branched stent stenosis occurred in 2 cases and relieved by balloon dilatation. The mean follow-up time was 14.6 months, and the patency rate of branch stent was 100% during the follow-up period. The true lumen diameter of thoracic aorta was significantly expanded and the false lumen diameter was significantly reduced 3 months after surgery compared with that before surgery ( P<0.05). Conclusion:Castor stenting in the treatment of TBAD with insufficient proximal anchoring area is simple and feasible, with satisfactory short term clinical effect.
ABSTRACT
Objective To evaluate the feasibility and efficacy of ultrasound-guided popliteal vein catheter thrombolysis for acute deep venous thrombosis of the lower extremity.Methods Clinical data were retrospectively analyzed on 120 patients of unilateral acute lower extremity deep vein thrombosis from April 2010 to April 2013.60 cases were included in systemic thrombolytic group; 60 cases into catheter directed thrombolysis group.Thrombolysis rate and limb swelling reduction rate were calculated and compared between the two groups.Results Due to limb swelling rate,in systemic thrombolysis group:Thigh swelling reduction rate was (77 ± 9) ％ ; Leg swelling reduction rate was (70 ± 11) ％,while in catheter directed thrombolys group,that was (87 ± 5) ％,and (80 ± 9) ％,respectively (P ＜ 0.05).The thrombolysis rate in systemic group was (59 ± 14)％,that was (71 ± 13)％ in catheter directed thrombolysis group (P ＜ 0.05).Conclusions Ultrasound guided precutaneous catheter popliteal vein thrombolysis significantly improves the short-term outcome of deep venous thrombosis in terms of leg swelling reduction rate and thrombolysis reduction rate.