Embolization for persistent type IA endoleaks after chimney endovascular aneurysm repair with Onyx®

Diagnostic and Interventional Imaging
C MarcelinF Cornelis

Abstract

The purpose of this study was to determine retrospectively the safety and technical success rate of embolization using ethylene vinyl alcohol copolymer (Onyx®) for persistent type 1A endoleaks after chimney endovascular aneurysm repair (EVAR) for complex aortic aneurysms. Nine consecutive patients (6 men, 3 women) with a mean age of 78.6 years (range: 62-87 years) presenting with persistent type IA endoleaks after chimney EVAR and an increase of aneurysm size were treated using transarterial embolization with Onyx®. Technical success was obtained in all patients (100%) and no complications were observed. Mean follow-up was 16 months (range: 3-35 months). Primary clinical efficacy was obtained for 8/9 patients (89%) and primary technical efficacy for 6/9 patients (67%). Secondary clinical efficacy was 100%, and secondary technical efficacy was 78%. Our results suggest that arterial embolization using Onyx® appears as a feasible and safe endovascular procedure of type IA endoleaks after chimney EVAR, although further validation is now required.

References

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Citations

Jun 19, 2018·Journal of Endovascular Therapy : an Official Journal of the International Society of Endovascular Specialists·Sonia RoncheyNicola Mangialardi
Aug 12, 2020·Cardiovascular and Interventional Radiology·Seyed Ameli-RenaniRobert A Morgan
Jul 31, 2019·Jornal Vascular Brasileiro·Sergio Quilici BelczakBeatriz Marques Abrão

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