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Zoom71 navigation: Does tip orientation matter?

Miguel S Litao1, Brent Flusty1, Mohamad Ezzeldin2

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Clinical Neurology and Neurosurgery
|November 12, 2024
PubMed
Summary
This summary is machine-generated.

The Zoom 71 aspiration catheter

Keywords:
Strokeaspiration catheterthrombectomy

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Area of Science:

  • Neurointerventional surgery
  • Vascular access techniques
  • Stroke treatment devices

Background:

  • Aspiration thrombectomy is a primary treatment for stroke.
  • The Zoom 71 (Z71) aspiration catheter features a unique angled tip.
  • This study investigates the Z71's tip orientation during carotid siphon navigation.

Purpose of the Study:

  • To evaluate the Z71 aspiration catheter's tip orientation during carotid siphon navigation.
  • To assess the relationship between tip orientation and trackability in stroke interventions.
  • To identify factors influencing the Z71's performance in complex cerebrovascular anatomy.

Main Methods:

  • Retrospective analysis of 71 Z71 passes in 50 patients with large vessel occlusions.
  • Categorization of tip orientation as "Toward" or "Away" relative to anatomical turns.
  • Analysis of tip "catching" events in defined carotid siphon segments.

Main Results:

  • No preferential tip orientation was observed for the Z71 in any of the three analyzed turns.
  • Tip "catching" occurred in 15.5% of passes at Turn 2 and 4.7% at Turn 3.
  • Using the Zoom 88 (Z88) as a guide catheter was associated with reduced Z71 catching in Turns 2 and 3.

Conclusions:

  • Z71 tip orientation does not significantly impact navigation through the carotid siphon.
  • The Z71 catheter demonstrates consistent performance regardless of tip angulation.
  • Employing the Z88 guide catheter improves Z71 trackability around the carotid siphon.