Abstract TP81: Healthcare Disparities For Thrombolysis In Patients Presenting With Stroke-like Symptoms At A Comprehensive Stroke Center

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Background: Stroke is a leading cause of death and disability. Early presentation allows clinicians to use tPA for acute stroke therapy to improve outcomes. However, healthcare disparities among different racial/ethnic and gender groups remain a limitation for uniform access to acute stroke therapy. We investigated if such gender and racial disparity exist in tPA administration at a large community comprehensive stroke center (CSC). Methods: Retrospective analysis of a prospective cohort of patients was conducted of patient with acute stroke symptoms who presented to a CSC between May 2018 and May 2022. Demographics, time from last known normal (LKN), rate of tPA administration and door to needle time (DTN) was calculated. Univariate analysis between groups was performed using one-way ANOVA for mean, Kruskal-Wallis test for median and p-value <0.05 was considered significant. Results: Total number of patients presenting to our CSC during the study period with stroke like symptoms was 3901. Of this index cohort, 401 (10.2%) were administered tPA - 207 (51.6%) women and 194 (48.3%) men. Women were significantly older [67.5 ± 15.1 years compared to men, 62.6 ± 13.3 years (p=0.027)]. Average time of LKN to arrival was 124 ± 3.8 min for women and 130 ± 4.9 min for men (p=0.298). Black women’s DTN was longer compared to white women ( 50.9 ± 3.15 min v. 41.5 ± 2.07 min, p=0. 0103). However, proportion of Black women receiving tPA did not differ from white women [87/770 (11.3%) v. 113/1041 (10.9%), p=0.824]. Race disparity was noted among Black men compared to white men for tPA administration [64/798 (8.0%) v 119/1226 (9.7%), p=0.018]. No gender or racial disparity was noted among tPA recipients regarding mRS at discharge [white men v. white women v. Black men v. Black women - 2 (IQR 1,4) v. 3 (IQR 1,4) v. 3 (IQR 1,4) v. 3 (IQR 1,4), p=0.211]. Conclusions: At a large volume, urban, non-academic comprehensive stroke center, overall gender, or racial factors were similar for discharge outcome. However, a delay in tPA administration among Black women and lower incidence of tPA administration in Black men compared to their respective white counterparts need to be validated in larger registries.

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