Thoracic Endovascular Repair For Type B Aortic Dissection:Midterm Follow-up Outcome

Aims:Retrospective analysis study to evaluate the feasibility and safety of thoracic endovascular stent-graft repair in patients with descending aortic dissection and discussion of early and med-term outcomes.Methods:between January2010and September2012,140consecutive patients with thoracic aortic dissection underwent endovascular stent-graft repair. The aortic dissection included acute and chronic type B aortic dissection, intramural hematoma and retrograde type A aortic dissection. The efficacy of the procedure was assessed at early result and in follow-up studies3,6, and12months after intervention. We use SPSS to analysis obtained data. This study doesn’t contain the thoracic/abdominal aorta aneurysm and abdominal aorta dissection.Results:The procedures were technically and clinically successful in137(97.8%) patients overall. Within30days, mortality was one (0.7%) patient died, one (0.7%) patient suffered a rupture, an endoleak was detected in3(2.14%). No paraplegia, bowel ischemia, acute renal failure, or other major complications occurred. The left subclavian artery was completely covered in24(17.14%).17(12.14%) of the patients developed aneurysms of the distal aorta or continued false lumen perfusion with aneurysmal dilatation.6(4.28%) patients required an additional endovascular and/or surgical procedure, closure of the primary entry tear and thrombosis of the false lumen at the level of stent-graft were achieved. Midterm mortality was5cases (3.57%); the mean follow-up time was80.94±40.84weeks (1～162weeks).Conclusions:Acute and chronic type B aortic dissection, selectivity retrograde type A aortic dissection with tear in descending aorta can be treated safely and effectively by means of endovascular stent-graft placement...