Mueller-Wille, Rene and Wohlgemuth, Walter A. and Heiss, Peter and Wiggermann, Philipp and Guentner, Oliver and Schreyer, Andreas G. and Hoffstetter, Patrick and Stroszczynski, Christian and Zorger, Niels (2013) Transarterial Embolization of Type II Endoleaks after EVAR: The Role of Ethylene Vinyl Alcohol Copolymer (Onyx). CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY, 36 (5). pp. 1288-1295. ISSN 0174-1551, 1432-086X
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To determine the feasibility and efficacy of transarterial endoleak embolization using the liquid embolic agent ethylene vinyl alcohol copolymer (Onyx). Over a 7-year period eleven patients (6 women, 5 men; mean age 68 years, range 37-83 years) underwent transarterial embolization of a type II endoleak after endovascular aortic aneurysm repair using the liquid embolic agent Onyx. Two patients (18 %) had a simple type II endoleak with only one artery in communication with the aneurysm sac, whereas 9 patients (82 %) had a complex type II endoleak with multiple communicating vessels. We retrospectively analyzed the technical and clinical success of transarterial type II endoleak embolization with Onyx. Complete embolization of the nidus was defined as technical success. Embolization was considered clinically successful when volume of the aneurysm sac was stable or decreased on follow-up CT scans. Mean follow-up time was 26.0 (range 6-50) months. Clinical success was achieved in 8 of 11 patients (73 %). Transarterial nidus embolization with Onyx was technically successful in 6 of 11 patients (55 %). In three cases the nidus was embolized without direct catheterization from a more distal access through the network of collateral vessels. Onyx is a favorable embolic agent for transarterial endoleak embolization. To achieve the best clinical results, complete occlusion of the nidus is mandatory.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ABDOMINAL AORTIC-ANEURYSMS; ENDOVASCULAR REPAIR; RUPTURE; FAILURE; Endoleak; Endovascular aortic aneurysm repair (EVAR); Onyx |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Röntgendiagnostik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 31 Mar 2020 11:06 |
| Last Modified: | 31 Mar 2020 11:06 |
| URI: | https://pred.uni-regensburg.de/id/eprint/15997 |
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