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Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
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Delayed Recanalization-How Late Is Not Too Late?

Ruiqing Kang1,2, Marcin Gamdzyk1, Hong Tang1

  • 1Department of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA.

Translational Stroke Research
|November 20, 2020
PubMed
Summary

Delayed recanalization therapies offer new hope for stroke patients who miss the initial treatment window. Further research is needed to understand the neuroprotective mechanisms underlying these delayed interventions for ischemic stroke.

Keywords:
EndovascularRecanalizationStrokeThrombectomy

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Area of Science:

  • Neurology
  • Vascular Medicine
  • Medical Imaging

Background:

  • Stroke is a leading cause of global mortality.
  • Current treatments for ischemic stroke have limited time windows (thrombolysis ≤4.5h, thrombectomy ≤6h).
  • Many patients, especially in developing countries, miss the optimal treatment window, lacking alternative solutions.

Purpose of the Study:

  • To review clinical studies on delayed recanalization in ischemic stroke patients.
  • To organize findings based on occlusion duration.
  • To discuss evolving treatment guidelines and potential neuroprotective mechanisms.

Main Methods:

  • Literature review of clinical studies on delayed stroke recanalization.
  • Analysis of studies categorized by occlusion duration.
  • Examination of animal research for neuroprotection mechanisms.

Main Results:

  • Delayed recanalization (24h to >1 month) has shown benefits in select ischemic stroke patients.
  • Advances in imaging and interventional devices are expanding treatment opportunities.
  • The precise mechanisms of neuroprotection in delayed recanalization remain unclear.

Conclusions:

  • Delayed recanalization strategies represent a promising avenue for treating stroke patients beyond conventional time limits.
  • Further investigation into neuroprotective mechanisms is crucial for optimizing delayed treatment protocols.
  • Evolving guidelines and ongoing research may broaden therapeutic options for a larger stroke patient population.