Onyx embolization with the Apollo detachable tip microcatheter: A single-center experience

Interventional Neuroradiology : Journal of Peritherapeutic Neuroradiology, Surgical Procedures and Related Neurosciences
Timothy R MillerD Gandhi

Abstract

Purpose The Apollo Onyx Delivery Microcatheter (Ev3, Irvine, CA) is a detachable-tip microcatheter that was developed to reduce the risk of microcatheter entrapment during ethylene-vinyl alcohol copolymer (Onyx) embolizations. We report our experience with the microcatheter in a variety of neurointerventional procedures. Methods We retrospectively reviewed all Onyx embolizations performed in the head, neck, and spine using the Apollo Onyx Delivery Microcatheter from its introduction at our institution in July 2014 to August 2016. Information regarding patient diagnoses, procedural details, as well as clinical outcomes were obtained from the electronic medical record, procedure reports, and relevant angiographic imaging. Results A total of 58 arterial pedicle Onyx embolizations were performed in 37 patients. There were no cases of microcatheter entrapment, early/inadvertent tip detachment, or vessel injury upon removal of the device. There were two instances (3.5%) of leakage of Onyx from the microcatheter detachment site during embolization, which did not result in adverse sequelae. Clinical outcomes were excellent, with nearly all embolizations achieving the intended goal. In multivariate analysis, length of Onyx reflux along ...Continue Reading

References

Feb 20, 2003·Neuroradiology·D R WarakaulleP Teddy
Oct 13, 2011·Journal of Neurointerventional Surgery·C Benjamin NewmanR Sean Pakbaz
Oct 13, 2011·Journal of Neurointerventional Surgery·Brian P WalcottChristopher S Ogilvy
Dec 3, 2013·Current Problems in Diagnostic Radiology·Joe J LeyonArul Ganeshan
Mar 29, 2014·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·David AltschulAlejandro Berenstein
May 28, 2014·Journal of Neurointerventional Surgery·Seth B HayesMohammad Ali Aziz-Sultan

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Methods Mentioned

BETA
surgical resection

Software Mentioned

Apollo
Stata
R

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