Endovascular treatment and outcome in patients with CTP-defined extra-large infarct core stroke

Jin-Hua Ye1, Tingyu Yi2, Lan Hong3

  • 1Cerebrovascular and Neuro-Intervention Department, Zhangzhou Municipal Hospital of Fujian Province and Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, Fujian, China.

Insights

Endovascular thrombectomy (EVT) improved outcomes for stroke patients with large infarct cores, reducing mortality. However, favorable outcomes were uncommon, and symptomatic intracranial hemorrhage risk increased.

Area of Science:

  • Neurology
  • Interventional Cardiology
  • Stroke Medicine

Background:

  • Limited evidence exists for endovascular thrombectomy (EVT) in large perfusion-defined ischemic stroke cores.
  • Large vessel occlusion (LVO) stroke with significant infarct core requires effective treatment strategies.

Purpose of the Study:

  • To evaluate the effectiveness and safety of EVT in patients with large ischemic stroke cores (≥100 mL).
  • To compare functional outcomes and mortality between EVT and best medical management in this patient population.

Main Methods:

  • Retrospective multicenter cohort study of 327 adult patients with anterior circulation LVO and large ischemic cores (≥100 mL).
  • Patients presented within 24 hours and were treated with EVT or best medical management.
  • Outcomes assessed included 90-day functional outcome (mRS 0-3), mortality, and symptomatic intracranial hemorrhage, analyzed using multivariable regression and IPTW.

Main Results:

  • EVT was associated with significantly higher odds of a favorable 90-day functional outcome (aOR 4.3-5.1) and lower 90-day mortality (aOR 0.5).
  • Successful reperfusion was achieved in 89.1% of EVT patients.
  • EVT also increased the risk of symptomatic intracranial hemorrhage (aOR 4.4).

Conclusions:

  • EVT offers improved functional outcomes and reduced mortality in patients with large ischemic stroke cores (≥100 mL).
  • Despite benefits, favorable outcomes remain infrequent, and mortality is still high.
  • Increased risk of symptomatic intracranial hemorrhage necessitates careful consideration and further prospective validation.
Abstract

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