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Updated: Aug 26, 2025

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
Published on: January 18, 2018
Reducing delay to endovascular reperfusion after relocating a thrombolysis unit
Nicolaj Grønbæk Laugesen1, Klaus Hansen1,2, Joan Højgaard1
1Department of Neurology, Stroke Center Rigshospitalet, Rigshospitalet, Copenhagen, Denmark.
Relocating intravenous thrombolysis (IVT) services to a mechanical thrombectomy (MT)-capable center significantly reduced reperfusion times for acute ischemic stroke patients. This organizational change improved patient outcomes by shortening delays without impacting prehospital transport.
Area of Science:
- Neurology
- Interventional Radiology
- Health Services Research
Background:
- Functional outcomes in acute ischemic stroke patients treated with mechanical thrombectomy (MT) are critically time-dependent.
- Delays in endovascular reperfusion negatively impact patient outcomes.
- Organizational strategies, such as relocating services, can potentially modify reperfusion times.
Purpose of the Study:
- To investigate the impact of relocating intravenous thrombolysis (IVT) services from a non-MT center to an MT-capable center on reperfusion times.
- To assess the association between reduced imaging-reperfusion times and functional outcomes in stroke patients.
Main Methods:
- Retrospective, single-center cohort study of 253 stroke patients treated with MT (2017-2019).
- Data divided into two periods: before (Period 1) and after (Period 2) IVT service relocation in 2018.
- Analysis of time intervals: ambulance-to-imaging and imaging-to-reperfusion; ordinal logistic regression used to analyze functional outcomes.
Main Results:
- No significant change in ambulance-imaging times (median 27 min vs. 30 min).
- Significant reduction in imaging-reperfusion times (median 173 min vs. 114 min, p < 0.001).
- Every 10-minute increase in imaging-reperfusion delay was associated with poorer 90-day functional outcome (aOR 0.95, 95% CI: 0.95-0.98).
Conclusions:
- Relocating IVT services to an MT-capable center effectively reduced reperfusion times without increasing prehospital delays.
- Optimizing the organization of IVT and MT services is crucial for improving patient outcomes in urban stroke care.
- Centralizing services streamlines the treatment pathway, leading to faster reperfusion and better functional recovery.
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