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

Area of Science:

• Neurosurgery
• Interventional Radiology
• Medical Device Technology

Background:

• Microcatheter entrapment is a risk during ethylene-vinyl alcohol copolymer (Onyx) embolizations.
• The Apollo Onyx Delivery Microcatheter was designed to mitigate this risk.

Purpose of the Study:

• To evaluate the safety and efficacy of the Apollo Onyx Delivery Microcatheter.
• To assess its performance in various neurointerventional procedures.

Main Methods:

• Retrospective review of 58 Onyx embolizations using the Apollo Microcatheter (July 2014 - August 2016).
• Data collected included patient diagnoses, procedural details, and clinical outcomes.

Main Results:

• No instances of microcatheter entrapment, inadvertent detachment, or vessel injury were reported.
• Two cases (3.5%) of Onyx leakage from the detachment site occurred without adverse events.
• Nearly all embolizations achieved their intended goals.

Conclusions:

• The Apollo Microcatheter is safe and effective for neurointerventional embolizations with Onyx.
• Onyx leakage is an infrequent technical complication.