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Endovascular repair of acute type B aortic dissection: early and mid-term results.

Abstract：

OBJECTIVE:To evaluate early and mid-term results of endovascular repair of acute type B aortic dissection by stent graft. METHODS:From June 2001 to May 2005, 63 patients with acute type B aortic dissection underwent stent graft implantation. The study included 59 men and 4 women with an average age of 50.4 +/- 11.4 years (range, 31-80 years). Four patients underwent stent-graft implantation in the acute phase. Fifty-nine patients with acute type B dissection underwent stent-graft implantation 2 weeks after the onset of dissection. All patients were followed up from 1 to 47 months (average, 11.7 +/- 10.6 months). The clinical data of the patients were analyzed. RESULTS:The primary tear was incompletely sealed in three cases. The incidence of incomplete seal was 4.8%. Ascending aortic dissection occurred in three cases. One occurred during operation. The other two occurred at 1 day and 10 months after stent-graft implantation. Two patients died within 30 days after operation. One died of rupture of the ascending aortic dissection. The other one died of acute renal failure. The 1-month mortality was 3.2%. Four patients underwent a second stent-graft implantation before discharge. One year after stent-graft implantation, complete thrombosis of the false lumen in the thoracic aorta was achieved in 98.4% of patients, and the maximum diameter of the descending aorta decreased 11.2% +/- 7.3%. Three patients died within the follow-up time. Mortality during the follow-up period was 4.8%. One patient died of peptic ulcer hemorrhage. Another one died of rupture of the ascending aortic dissection. The third one died of unknown reasons. The actuarial survival curve by the Kaplan-Meier method showed a 4-year survival rate of 89.4%. CONCLUSIONS:Early and mid-term results showed that endovascular repair was effective in treatment of acute type B aortic dissection. With the enrichment of doctors' experience and refinement of the device, better results are expected in the future.

journal_name

J Vasc Surg

journal_title

Journal of vascular surgery

authors

Xu SD,Huang FJ,Yang JF,Li ZZ,Wang XY,Zhang ZG,Du JH

doi

10.1016/j.jvs.2005.12.070

subject

Has Abstract

pub_date

2006-06-01 00:00:00

pages

1090-5

issue

eissn

0741-5214

issn

1097-6809

pii

S0741-5214(06)00274-6

journal_volume

pub_type

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Endovascular repair of acute type B aortic dissection: early and mid-term results.