Abstract W P212: The Effect Of Pre-hospital Notification On Time To Head Ct, Stroke Specialist Arrival, And Tpa Administration For Hispanic Patients With Acute Stroke

Abstract

Background: Hispanics have an increased incidence of ischemic stroke but may be less likely to use Emergency Medical Services (EMS) for stroke care. Objective: To examine disparities in pre-hospital triage and emergent evaluation of Hispanic stroke patients. We hypothesized that Hispanic stroke patients with pre-hospital notification experience less delay in emergent evaluation but the reduction may not be as pronounced as general stroke patients. Methods: Retrospective cohort study of all emergency department patients alerted as Brain Attack (BAT) between January 1, 2009 and August 31, 2012, at an urban comprehensive stroke center. We collected demographics, co-morbidities, and stroke severity from a quality assurance database. Outcome variables included EMS utilization, pre-hospital BAT activation, head CT timing & tissue plasminogen activator (TPA) timing. Effects of ethnicity and pre-hospital notification on evaluation and treatment times were measured using multivariate logistic regression models. The study was IRB approved. Results: During the study period, 832(64 Hispanic) patients were alerted as Brain Attacks. Hispanic patients were younger 56±17 vs. 68±16 years (p<0.0001), had trends for less EMS utilization (walk-in 35% vs. 22%) and lower NIHSS 9.3±4.3 vs. 12.8±8.3 (p=0.06), but did not differ in comorbidities. Patients with pre-hospital notification had significantly shorter times to stroke specialist arrival, door to head CT, and door to TPA irrespective of ethnicity. However, ethnicity did have independent effect on time to TPA administration. Please see Table 1. Conclusion: Pre-hospital notification is associated with faster stroke evaluation and treatment, including among Hispanic patients with acute stroke. Further study is needed to examine if outreach to increase EMS utilization will decrease disparities in this population.