Abstract WMP85: Target Stroke Implementation Best Practice Strategies Cut Thrombolysis Time to <30 minutes in a 1,550 Bed Academic Urban County Hospital

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Introduction: Thrombolytic window for acute ischemic stroke is brief and crucial. The AHA/ASA Target: Stroke Best Practice Strategies (TSBPS) aim to help hospitals improve thrombolysis door-to-needle (DTN) time. We assessed long-term efficacy of TSBPS to reduce DTN in a tertiary care hospital.Methods: We initiated a quality improvement program across one regional academic medical center (1,550 beds, 900 annual stroke admissions) that serves a multi-ethnic population by establishing a multidisciplinary DTN committee to assess causes of delayed DTN and implement focused TSBPS. Strategies included stroke team pre-admission notification, direct transfer to CT scanner, storing and administering IV rt-PA at CT scanner, and immediate stakeholder feedback. Door-to-CT, DTN, CT to IV rt-PA and door-to-groin (DTG) times were analyzed prospectively in consecutive IV rt-PA treated patients over 27 months pre-implementation and 13 months post-implementation.Results: A total of 148 patients were included in the pre-implementation and 126 patients in the post-implementation group. The two groups had similar demographics, comorbidities, anticoagulation status, pre-thrombolysis hypertension treatment, stroke severity (median NIHSS 11 (6-18) vs. 11 (5-17), p= 0.483), arrival by EMS (96% vs. 97%, p=0.708), and arrival after hours. Post implementation, reductions in treatment times were observed for median DTN (IQR) 59 (52-80) to 28.5 (20-41) min (p<0.001), door-to-CT time 17 (14-21) to 16 (12-19) min (p=0.016), CT-to-IV rt-PA time 43 (31-59) to 13 (6-23) min (p<0.001), and DTG time 164 (136-188) min (n=37) to 86 (63-103) min (n=51) (p<0.001). Overall monthly IV r-tPA administration increased post-implementation (5.5 vs. 9.8, p<0.001). Rate of symptomatic intracranial hemorrhage (2.7% vs. 3.2%, p=0.817) and treatment of stroke mimics (9% vs. 13%, p=0.311) were similar pre- and post-implementation.Conclusions: In this study, delay in IV rt-PA administration was predominantly related to prolonged CT to IVrt-PA time. DTN committee implementation is a simple, low-cost intervention, that significantly reduced DTN and DTG with persistent effect and no increase in symptomatic intracranial hemorrhage or stroke mimic treatment rate.

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