Intravenous thrombolysis is more effective in ischemic cardioembolic strokes than in non-cardioembolic?

Sofia Rocha1, Arnaldo Pires, Joana Gomes

  • 1Neurology Department, Braga Hospital, Portugal. sofiar@ufp.edu.pt

Insights

Intravenous thrombolysis (IT) showed no significant clinical benefit in cardioembolic (CE) stroke compared to non-cardioembolic (NCE) stroke. Outcomes were similar between groups, suggesting IT may not be specifically beneficial for CE stroke patients.

Area of Science:

  • Neurology
  • Cardiology
  • Emergency Medicine

Background:

  • Intravenous thrombolysis (IT) is a critical treatment for acute ischemic stroke.
  • Previous studies suggested potential benefits of IT in cardioembolic (CE) stroke due to larger recanalization extent.

Purpose of the Study:

  • To assess the clinical efficacy of intravenous thrombolysis (IT) in patients with cardioembolic (CE) stroke compared to non-cardioembolic (NCE) stroke.

Main Methods:

  • A cohort of 177 patients undergoing IT was retrospectively analyzed.
  • Patients were categorized into CE and NCE groups.
  • Clinical outcomes were evaluated using the National Institutes of Health Stroke Scale (NIHSS) and modified Rankin Scale (mRS).

Main Results:

  • Mean NIHSS scores at admission, 24 hours, and discharge were similar between CE and NCE groups.
  • The reduction in NIHSS from admission to 24 hours and discharge did not significantly differ between the CE and NCE subgroups.
  • Modified Rankin Scale scores at discharge and 3 months showed no significant difference between subtypes, though NCE patients trended towards greater independence at 3 months.

Conclusions:

  • The study findings do not support a specific benefit of IT in cardioembolic stroke.
  • The heterogeneity within the non-cardioembolic (NCE) group might influence outcomes.
  • Further research is needed to clarify the role of IT in different stroke etiologies.
Abstract

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