Endovascular Treatment of Complex Aneurysms with the Use of Covera Stent Grafts |
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Authors: | Caroline Caradu Anaïs Peran Dubourg Elda Chiara Colacchio Dominique Midy Xavier Bérard Eric Ducasse |
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Affiliation: | 1. Department of Vascular Surgery, Université de Bordeaux, University Hospital of Bordeaux, Bordeaux, France;2. Department of Vascular Surgery, University Hospital of Poitiers, Poitiers, France;3. Department of Vascular Surgery, University Hospital of Padova, Padova, Italy |
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Abstract: | PurposeTo characterize the short-term results of a newly available self-expanding covered stent (Covera; CR Bard Peripheral Vascular Inc., Murray Hill, New Jersey) for the reconstruction of target vessels in complex aneurysms.Materials and MethodsFrom August 2017 to November 2018, this self-expanding covered stent was used in 17 patients (mean 72.6 ± 7.6 years of age) during endovascular aneurysm repair (EVAR) with hypogastric preservation (11.8%), branched EVAR (29.4%), fenestrated (F)-EVAR (17.6%), chimney + F-EVAR (11.8%), or chimney EVAR (29.4%). In more than 48 stented arteries (2.8 ± 1.1/patient), 25 were preserved using this self-expanding covered stent.ResultsAll target vessels were successfully preserved. There was no 30-day mortality and 1 in-hospital death. Intraoperative aneurysm exclusion was successful in 14 patients (82.4%) with a perioperative technical success rate of 82.4%. The actuarial survival rate was 93.8% at 6 months and 85.9% at 12 months. Aneurysm sac regression of >5 mm was observed in 4 cases (23.5%), and the sac remained stable in the remaining patients (13 cases [76.5%]). At 12 months, the primary clinical success rate was 76.5%, and assisted primary clinical success rate was 82.4%. No type 3 endoleak was related to a disruption of the reconstruction with the self-expanding covered stent.ConclusionsThis new self-expanding covered stent provides good short-term patency in chimneys, branches, or fenestrations. Larger series with long-term follow-up are required to determine if the stent can sustain the mechanical stress to which it will be submitted in these repairs. |
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Keywords: | B-EVAR branched endovascular aneurysm repair F-EVAR fenestrated endovascular aneurysm repair IBD iliac branch devices |
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