Endovascular repair of type B acute aortic dissection / 中华普通外科杂志

ABSTRACT

Objective To evaluate the safety and efficacy of endovascular repair(EVR)for type B acute aortic dissection(AAD). Methods Between Feb 2002 and May 2008.39 consecutively admitted patients with the confirmed diagnosis of acute type B aortic dissection were studied.All patients were treated bv EVR.Left comnlon carotid artery were covered after bypass in 2 cases.of which fenestrated stent graft (SG)at innominate artery was used in one;1 case underwent left lower extrernity amputation13 left subclavian artery(LSA)and 1 aberrant risht subclavian artery were completely covered without bypass.5 LSA were pattially covered.All cases were followed by CTA after EVR.the porfusion status of the false lumen were monitored in the aorta at the level of the stented segment(L1)and distal to the stent graft (L2).Results The procedure Was technically successful in all cases;30-day mortality rate was 10.3%.At the 1-month follow-up,false lumen in L1 thrombosed in 100%,a complete thrombosis of the false lumen Was observed in 21 patients(77.8%).partial thrombosis in 6(22.2%).with complete reabsorption of the thrombus and remodelling of the true lumen in 5(18.5%);False lumen in L2 thrombosed only in 7 patients(28%),complete thrombosis in 2(8%)and partial thrombosis in 5(20%).Conclusions The results of endovascular repair of acute type B dissection Was satisfactory.30-day mortalitv rate was related to severe complications before EVR.