Abstract
OBJECTIVE: The effect of intra-arterial treatment (IAT) for acute ischemic stroke is highly time-dependent. We investigated the delay of IAT and factors associated with such delay.
METHODS: MR CLEAN was a randomized trial of IAT plus usual care versus usual care alone (n=500). With multivariable linear regression, we analyzed the effect of intravenous treatment, general anesthesia, off-hours and inter-hospital transfer on time to admission to the emergency department (ED) of the intervention center and time to treatment. Furthermore, we assessed compliance with a target of 75 min for time from ED to treatment, and calculated the potential absolute increase in the number of patients with a good outcome (modified Rankin Scale score ≤2) if this target had been achieved in all treated patients.
RESULTS: Inter-hospital transfer prolonged time to ED by 140 min (95% CI 129 to 150) but reduced time from ED to treatment by 77 min (95% CI 64 to 91). Time from ED to treatment was increased by 19 min by general anesthesia (95% CI 5 to 33) and total time was increased by 23 min during off-hours (95% CI 6 to 40). The in-hospital target was achieved in 11.5% (22/192) of patients. Full compliance with the target time of 75 min from ED to treatment would have increased the proportion of patients with a good outcome by 7.6% (95% CI 6.7% to 8.5%).
CONCLUSION: Inter-hospital transfer is an important cause of delay in the delivery of IAT and every effort should be made to avoid transfers and reduce transfer-related delay. Furthermore, in-hospital workflow should be optimized to improve functional outcome after IAT.
Original language | English |
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Pages (from-to) | 424-428 |
Number of pages | 5 |
Journal | Journal of NeuroInterventional Surgery |
Volume | 10 |
Issue number | 5 |
Early online date | 2017 |
DOIs | |
Publication status | Published - May 2018 |
Keywords
- Administration, Intravenous
- Aged
- Aged, 80 and over
- Brain Ischemia/epidemiology
- Endovascular Procedures/adverse effects
- Female
- Humans
- Male
- Middle Aged
- Netherlands/epidemiology
- Prospective Studies
- Retrospective Studies
- Stroke/epidemiology
- Time-to-Treatment/standards
- Treatment Outcome
- Workflow