Direct admission to stroke centers reduces treatment delay and improves clinical outcome after intravenous thrombolysis

Abstract

We aimed to examine whether direct access to hospitals offering intravenous thrombolysis is associated with functional outcomes in patients with acute ischemic stroke treated with intravenous thrombolysis. We enrolled patients who received intravenous thrombolysis within 4.5hours of symptom onset using a prospective multicenter registry database. Patients referred directly from the field to organized stroke centers were compared with those who were transferred from non-thrombolysis-capable hospitals in terms of clinical outcomes at 90days after intravenous recombinant tissue plasminogen activator treatment. We also investigated onset-to-door time and onset-to-needle time according to admission mode. A total of 820 patients (mean age of 67.3years and median National Institutes of Health Stroke Scale score of 9) were enrolled. Seventeen percent of patients with AIS who received intravenous thrombolytic therapy at 12 hospitals (n=142) were transferred from other hospitals. The direct admission group had a shorter median onset-to-admission time (63 versus 121minutes, P<0.001) and onset-to-needle time (110 versus 161minutes, P<0.001) as compared with the indirect admission group. Direct admission was associated with a good outcome with an odds ratio of 1.57 (95% confidence interval: 1.02–2.39, P=0.036) after adjustment for baseline variables. Direct admission to a hospital with intravenous thrombolysis facilities available at all times was associated with shorter onset-to-needle time and better outcome in patients with AIS undergoing thrombolytic therapy. Our findings support the implementation of regional stroke care programs transporting patients directly to stroke centers to promote faster treatment and to achieve better outcomes.