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In Hyperacute Recanalization Therapy, Early Hospital Arrival Improves Outcome in Patients with Large Artery Occlusion
Background:
It is unknown whether the effect of onset---to-door (OTD) time on clinical outcomes differs between -patients with and without large artery occlusion (LAO) who undergo hyperacute recanalization therapy.
Methods:
Hyperacute recanalization therapy includes intravenous thrombolysis tissue-plasminogen activator (tPA), and endovascular therapy (EVT). Favorable clinical outcome was defined as modified Rankin Scale of ≤2 at discharge.
Results:
Among 164 patients, 117 (71%) patients received tPA, 86 (52%) received EVT, and 39 (24%) received tPA and EVT. One hundred and fifteen patients (70%) were classified into the LAO group and 49 (30%) into the non-LAO group. In the total cohort, multivariate regression analysis showed OTD time (OR 0.809 [95% CI 0.693-0.944], p = 0.007) was an independent factor related to the favorable outcome. Similarly, among patients with LAO, OTD was an independent negative factor for the favorable outcome (0.779 [0.646-0.940], p = 0.009). On the contrary, OTD was not associated with the favorable outcome (1.5 [0.7-2.5] vs. 1.7 [1.1-3.2], p = 0.155) in patients without LAO. This was confirmed with multivariate regression analysis, which did not show OTD to be an independent factor for the favorable outcome (0.900 [0.656-1.236], p = 0.516).
Conclusion:
The effect of early hospital arrival on clinical outcome differed between patients with and without LAO.
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