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Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
09:21

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Published on: January 18, 2018

Percutaneous clot removal devices in acute ischemic stroke: a systematic review and meta-analysis

Latha G Stead1, Rachel M Gilmore, M Fernanda Bellolio

  • 1Department of Emergency Medicine, Division of Research, Generose Bldg, Ste G-410, 200 First St SW, Rochester, MN 55905, USA. stead.latha@mayo.edu.

Archives of Neurology
|August 13, 2008
PubMed

Insights

Mechanical thrombectomy for ischemic stroke is feasible, offering a viable option for patients ineligible for IV thrombolysis. This intervention significantly improves outcomes, increasing the likelihood of a good modified Rankin score.

Area of Science:

  • Neurology
  • Interventional Neurology
  • Stroke Medicine

Background:

  • Ischemic stroke remains a leading cause of disability and mortality worldwide.
  • Intravenous thrombolysis has a limited time window for administration.
  • Mechanical thrombectomy offers a potential treatment for acute ischemic stroke beyond the standard thrombolysis window.

Purpose of the Study:

  • To systematically review and meta-analyze the efficacy of mechanical thrombectomy in treating ischemic stroke.
  • To identify factors associated with technical and clinical success.
  • To assess survival rates following mechanical thrombectomy.

Main Methods:

  • Systematic literature search of MEDLINE and EMBASE (2000-2006).
  • Inclusion of human studies without language or design restrictions.
  • Validity assessment using the Newcastle-Ottawa Scale.
  • Comparison with a matched historical cohort.
  • Meta-analysis of pooled data.

Main Results:

  • The middle cerebral artery and posterior circulation were most frequently occluded.
  • Clot accessibility was achieved in 85% of cases.
  • Hemorrhage occurred in 22% of patients, with no significant difference between concurrent thrombolysis and no thrombolysis groups.
  • Patients with accessible clots had better outcomes (36% good modified Rankin score) compared to those with inaccessible clots (24% good modified Rankin score).
  • Younger age and lower NIH Stroke Scale scores were associated with clinical success.
  • Mechanical intervention patients were 14.8 times more likely to achieve a good modified Rankin score compared to a matched cohort.

Conclusions:

  • Percutaneous mechanical embolectomy is a feasible treatment for acute ischemic stroke.
  • It provides a valuable therapeutic option for patients presenting after the intravenous tissue plasminogen activator (tPA) treatment window.
  • Mechanical thrombectomy significantly improves functional outcomes in selected ischemic stroke patients.

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