Endovascular Management of Malperfusion in Acute Type B Aortic Dissections
2011
Purpose:To examine the feasibility, efficacy, and midterm results of endovascular stent-graft management of acute type B aortic dissection complicated by renal, visceral, or lower limb malperfusion.Methods:A retrospective review was conducted to identify all patients with acute type B dissection treated endovascularly at a single center between 1998 and 2009. Of the 85 patients identified, 23 (27%) consecutive patients (20 men; mean age 60.9±11.6 years) presented with clinical and imaging evidence of end-organ malperfusion: 7 (30%) renal, 6 (26%) lower limb, 4 (17%) renal and lower limb, 3 (13%) visceral, and single cases of renal/visceral, renal/lower limb/spinal cord, and renal/visceral/spinal cord/lower limb.Results:All patients had stent-graft coverage of the proximal entry tear; 5 (22%) patients required additional branch vessel stenting, and 2 (9%) had femorofemoral bypass graft. Successful correction of malperfusion was achieved in 21 (91%) patients. In 1 patient, ischemia in the lower limb was res...
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