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  • Title: First/Preliminary Experience of Gore Viabahn Balloon-Expandable Endoprosthesis as Bridging Stent in Fenestrated and Branched Endovascular Aortic Repair.
    Author: Gallitto E, Faggioli G, Pini R, Mascoli C, Sonetto A, Abualhin M, Logiacco A, Ricco JB, Gargiulo M.
    Journal: Ann Vasc Surg; 2019 Nov; 61():299-309. PubMed ID: 31376538.
    Abstract:
    BACKGROUND: The aim of this study is to evaluate the preliminary outcomes of the Gore® Viabahn® balloon-expandable endoprosthesis (VBX) as bridging stent for fenestrated/branched aortic endograft. METHODS: Between April and June 2018, patients undergoing fenestrated and branched-endovascular aortic repair were prospectively collected. Anatomical, procedural, and postoperative data of patients treated with VBX as bridging stents to connect fenestrations/branches to target visceral vessels (TVVs) were analyzed. Technical success and any TVV-related adverse event were assessed before discharge, at 30 days, and after 6 months of follow-up. RESULTS: Fifteen patients undergoing fenestrated and branched-endovascular aortic repair for juxta/pararenal aneurysms (11), proximal type I endoleak after endovascular aortic repair (1), and thoracoabdominal aneurysms (3) were included in the study. Overall, 60 TVVs-celiac trunk (n = 14), superior mesenteric artery (n = 13), renal arteries (n = 30), hypogastric artery (n = 3)-were accommodated by fenestrations (n = 51), branches (n = 7), and scallops (n = 2). The bridging stent graft was a VBX in 40 (67%) TVVs. A renal artery dissection was successfully managed by a self-expandable bare metal stent. Overall, relining of a bridging stent graft was required in 2 TVVs revascularized by fenestrations (superior mesenteric artery: n = 1, renal artery: n = 1). One intraoperative type III endoleak from renal fenestration was detected and successfully sealed by an adjunctive flaring maneuver. Technical success was achieved in all cases. At 5-day, 1 VBX (1/40: 2.5%) lost its sealing in a renal artery revascularized by a branch (type II thoracoabdominal aortic aneurysm) and required reintervention and relining with a self-expandable stent graft. No TVV occlusion or reintervention occurred <30 days or after 6 months of follow-up. CONCLUSIONS: According to these preliminary results, the Gore Viabahn VBX balloon-expandable endoprosthesis can be safely used as bridging stent graft for fenestrated or branched endografts. A longer follow-up with a larger case load is necessary in order to validate this preliminary experience.
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