Onyx versus coil embolization for the treatment of type II endoleaks

ObjectiveLittle evidence is available supporting the optimal treatment of type II endoleaks associated with aortic sac growth. Previous studies have lacked comparisons between methods and long-term follow-up. The purpose present study was to review our center's experience comparing Onyx (a liquid embolization agent consisting ethylene vinyl alcohol; Medtronic, Minneapolis, Minn) coil embolization.MethodsA retrospective prospectively collected data from a vascular surgery database performed identify all patients who had undergone endoleak for growth after endovascular aneurysm repair 2005 2018. groups were compared using univariate statistics.ResultsA total 58 77 procedures either (27 patients; 37 procedures) or coils (31 40 procedures). average size at larger in group (77.9 ± 15.1 mm) (73.4 11.9 mm). mean follow-up 57 months 74 group. Of 27 embolization, 2 (7.4%) required graft explantation 5 31 (16.1%) (P = .33). results per-patient analysis showed that significantly greater rate need further reintervention (55% vs 19%; P < .01). Clinical success observed 13 (48%) 10 (32%) .04). Two each presented secondary rupture attempted embolization.ConclusionsType treated less likely require reinterventions than those embolization. A trend found toward explant With high potential rupture, diligent regardless technique used.