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  • Title: Outcome after celiac artery coverage during endovascular thoracic aortic aneurysm repair: preliminary results.
    Author: Vaddineni SK, Taylor SM, Patterson MA, Jordan WD.
    Journal: J Vasc Surg; 2007 Mar; 45(3):467-71. PubMed ID: 17254741.
    Abstract:
    BACKGROUND: Endovascular repair of descending thoracic aortic aneurysms has emerged as an alternative to open repair. Coverage of the left subclavian origin has been reported to expand the proximal sealing zone. We report the planned coverage of the celiac artery origin with a thoracic stent graft to achieve an adequate distal sealing zone. METHODS: All patients undergoing endovascular aneurysm repair are prospectively entered into a computerized database. All patients who underwent thoracic endovascular aneurysm repair with coverage of the celiac artery origin were identified and retrospectively analyzed. End points for evaluation included indications for covering the celiac artery, anatomic features of the distal landing zone, demonstration of collateral circulation between the celiac artery and the superior mesenteric artery, technical success of the procedure, and presence of clinical ischemic symptoms after the procedure. RESULTS: Between March 2005 and May 2006, 46 patients underwent endovascular repair of descending thoracic aortic aneurysms. Seven patients had planned celiac artery coverage with a thoracic stent graft to secure an adequate distal sealing zone. Six patients demonstrated collateral circulation through the gastroduodenal artery between the celiac and superior mesenteric arteries before deployment of the stent graft. One patient had a distal type I endoleak at the conclusion of the procedure related to inadequate sealing at the superior mesenteric artery origin. No type II endoleaks were evident at the final intraoperative angiogram or 30-day computed tomography scan. There were no postoperative deaths, no ischemic abdominal complications, and no clinical spinal cord ischemia. Short-term follow-up (1 to 10 months) has demonstrated no additional endoleaks (type I not fully assessed), no aneurysm growth, and no aneurysm ruptures. CONCLUSION: This limited series supports the suitability, in selected patients, of covering the celiac artery origin for a distal landing zone when the distal sealing zone proximal to the celiac artery is inadequate. We recommend the angiographic evaluation of the collateral circulation between the celiac and superior mesenteric arteries when covering the celiac artery origin is being considered.
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