Abstract
The position of thoracic endovascular aortic repair (TEVAR) compared to open surgery of the thoracic aorta has changed. This study evaluates outcomes after TEVAR performed electively using our original Matsui-Kitamura stent graft (MKSG) to treat descending thoracic aortic aneurysms (dTAA) and chronic type-B aortic dissection (type-B AD), and elucidates the risk factors for postoperative spinal cord ischemia (SCI). TEVAR was performed using an MKSG in 66 patients (age: 70.8+/-9.2 years). The underlying etiology was atherosclerotic change in 39 patients, chronic type-B aortic dissection in 23 patients, and other in 4 patients. No perioperative deaths occurred. Three patients showed temporary paralysis due to postoperative SCI. Abdominal aortic aneurysm (AAA) surgery was a risk factor for postoperative SCI (P=0.04). The 5-year survival rate was 81.2%. The present study demonstrated that TEVAR of patients with dTAA and chronic type-B AD using an MKSG can be performed with high technical success rates and low rates of severe acute complications. AAA surgery was a risk factor for postoperative SCI.
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