{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,21]],"date-time":"2026-08-21T19:59:55Z","timestamp":1787342395379,"version":"build-2736575974"},"reference-count":27,"publisher":"Hogrefe Publishing Group","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Vasa"],"published-print":{"date-parts":[[2020,10]]},"abstract":"<jats:p> Summary: Background: Type II endoleak (T2EL) after endovascular aortic repair is associated with AAA sac enlargements in up to 25%, reduction of attachment zones and rarely with aortic rupture. Indications for therapy and efficacy of interventions of T2EL are not clearly established. Transarterial embolization with application of ethylene-vinyl alcohol copolymer has been described with varying outcomes. Aim of this study is to evaluate durability of Onyx<jats:sup>TM<\/jats:sup> embolization (OE) in T2EL in a consecutive series at a single tertiary vascular center. Patients and methods: Demographic data, technical success, pre- and postoperative aneurysm growth, morbidity, mortality and reintervention rates during hospital stay as well as in follow up were recorded in patients treated with OE for T2EL between 01\/2015 and 12\/2017. The primary endpoint was defined as persistence or reoccurrence of T2EL (durability of OE). Results: In total 15 patients (78\u00a0\u00b1\u00a06\u00a0years, 13 men) were treated with OE because of sac enlargement (average growth of 12\u00a0\u00b1\u00a08%, n\u00a0=\u00a012), persistent bleeding after AAA rupture (n\u00a0=\u00a02) or persistent T2EL with stable but large aneurysm diameter (n\u00a0=\u00a01). Mean length of stay was 8\u00a0\u00b1\u00a011 days. Technical success was 93.3% (n\u00a0=\u00a014). Inhospital-morbidity was 26.7%, in-hospital- and 1-year-mortality rate were 6.6% (n\u00a0=\u00a01) and 20.0% (n\u00a0=\u00a03). T2EL persisted in 20.0% (n\u00a0=\u00a03) despite of OE. Re-EL-II occurred after 40 (30\u2013114) days in 33.3% (n\u00a0=\u00a05). Reintervention rate was 13.3% (n\u00a0=\u00a02, at\u00a0day 48 and 319). Altogether clinical success with stable aneurysm diameter was achieved in 80.0% (n\u00a0=\u00a012), but durable elimination of EL was only achieved in 46.7% of patients (n\u00a0=\u00a07). Conclusions: OE is technically possible in more than 90% of patients but might be associated with severe complications. Durability of this treatment is low, since T2EL persist or reoccur in more than 50% of all patients. OE of T2EL should be reserved for few selected cases. <\/jats:p>","DOI":"10.1024\/0301-1526\/a000905","type":"journal-article","created":{"date-parts":[[2020,10,26]],"date-time":"2020-10-26T06:37:31Z","timestamp":1603694251000},"page":"483-491","source":"Crossref","is-referenced-by-count":12,"title":["Lack of durability after transarterial ethylene-vinyl alcohol copolymer-embolization of type II endoleak following endovascular abdominal aortic aneurysm repair"],"prefix":"10.1024","volume":"49","author":[{"given":"Anna-Leonie","family":"Menges","sequence":"first","affiliation":[{"name":"Department for Vascular and Endovascular Surgery and Munich Aortic Center (MAC), University Hospital rechts der Isar, Technical University of Munich, Munich, Germany"},{"name":"Department of Vascular Surgery, University Hospital Zurich, Zurich, 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