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Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
Published on: January 18, 2018
Thrombolytic therapy for acute ischemic stroke beyond three hours
Christopher R Carpenter1, Samuel M Keim, William Kenneth Milne
1Washington University School of Medicine, St. Louis, MO, USA.
The Journal of Emergency Medicine
|June 26, 2010
Summary
Intravenous thrombolytic therapy with tissue plasminogen activator (tPA) within 4.5 hours of acute ischemic stroke onset improves functional outcomes for select patients. While increasing hemorrhage risk, it does not significantly raise mortality rates.
Area of Science:
- Neurology
- Cardiovascular Medicine
- Emergency Medicine
Background:
- Ischemic stroke is a major cause of death and disability.
- Current thrombolytic therapy has a narrow time window with inconsistent results.
- Recent trials suggest extending the treatment window may be beneficial.
Observation:
- Systematic review and meta-analysis of randomized controlled trials (RCTs) on thrombolytic therapy for acute ischemic stroke.
- Focus on trials with treatment administration within 4.5 hours of symptom onset.
- Inclusion of data from NINDS, ECASS trials, and ATLANTIS study.
Findings:
- Thrombolysis with tPA within 4.5 hours improved functional outcomes at 3 months in some trials (NINDS, ECASS III).
- Increased rates of intracranial hemorrhage were observed.
- Meta-analysis suggests overall benefit in functional outcomes despite hemorrhagic complications in some studies.
Implications:
- Expanding the therapeutic window for tPA in acute ischemic stroke may improve patient outcomes.
- Careful patient selection is crucial due to increased bleeding risk.
- Further research may refine patient selection criteria and optimize treatment protocols.
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