Abstract
To report outcomes of coverage of the left subclavian artery (LSCA) during thoracic endovascular aortic repair (TEVAR). A retrospective review was performed of 285 patients (160 male) with a mean age of 62 years (range, 13-91 y) who underwent TEVAR at a single institution between March 2005 and May 2013. The LSCA was covered to obtain an adequate proximal landing zone, and a selective LSCA revascularization and embolization strategy was employed. All patient outcomes were recorded including neurologic complications, left arm claudication, endoleak rates, and repeat procedures. The origin of the LSCA was covered in 98/285 (34%) patients. Median follow-up was 533 days (range, 2-2,895 d). Cerebrovascular accident (CVA) rates for covered LSCA and noncovered groups were 11/98 (11%) and 5/188 (3%), respectively (P = .005). LSCA was revascularized at time of initial TEVAR in 44/98 (45%) patients. Of the remaining 54 patients, 10 (19%) required subsequent revascularization for claudication. LSCA embolization was done to prevent or treat endoleak in 41/98 (42%) patients, with 33/98 (34%) patients undergoing LSCA embolization at the time of LSCA coverage and 8 of the remaining 65 (12%) patients requiring subsequent embolization for persi...Continue Reading
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