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Clot removal therapy by aspiration and extraction for acute embolic carotid occlusion

K Imai1, T Mori, H Izumoto

  • 1Department of Stroke Treatment, Shonan Kamakura General Hospital, 1201-1 Yamazaki Kamakura, Kanagawa 247-8533, Japan.

AJNR. American Journal of Neuroradiology
|August 16, 2006
PubMed

Insights

Clot removal therapy using a balloon guide catheter effectively restored blood flow in acute stroke patients with internal carotid artery occlusion. This technique showed promising results for favorable neurologic and functional outcomes.

Area of Science:

  • Neurology
  • Interventional Neuroradiology
  • Vascular Surgery

Background:

  • Acute ischemic stroke due to internal carotid artery (ICA) occlusion presents a significant clinical challenge.
  • Effective clot removal is crucial for improving patient outcomes.

Purpose of the Study:

  • To evaluate the feasibility, safety, and efficacy of aspiration and extraction clot removal therapy.
  • Specifically focused on patients with embolic ICA occlusion.

Main Methods:

  • Retrospective analysis of 14 patients with acute ischemic stroke and ICA occlusion.
  • Inclusion criteria: within 6 hours of onset, NIHSS score ≥11, perfusion/diffusion mismatch, and total ICA occlusion.
  • Clot removal performed using aspiration and extraction with a microsnare via guiding or balloon guide catheters.

Main Results:

  • Balloon guide catheter use resulted in recanalization in 7 of 10 patients, while guiding catheters showed no recanalization.
  • Six of 7 patients with recanalization achieved favorable 7-day neurologic and 3-month functional outcomes.
  • One complication of distal embolization occurred.

Conclusions:

  • Balloon guide catheter-assisted clot removal is a feasible and effective treatment for embolic ICA occlusion.
  • This therapy offers high recanalization rates and good clinical outcomes, particularly in patients with adequate collateral circulation.
Abstract

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