Abstract 175: Faster Prehospital Workflow in the Melbourne Mobile Stroke Unit Halves Onset to Reperfusion Therapy

Background: The Melbourne Mobile Stroke Unit (MSU) utilises a specialised ambulance with on-board CT scanner and multidisciplinary team to provide on-scene imaging, treatment and triage for central Melbourne, Australia. We describe the operational impact of the MSU on stroke onset to treatment time for acute reperfusion therapy. Methods: Data from the first 6 months of operation were collected for all patients receiving reperfusion therapy from November 2017. Workflow times were compared to contemporary published Australian data and ambulance travel times were derived using a validated Google Maps algorithm. Results: In the first 6 months of operation, the Melbourne MSU provided prehospital thrombolysis (tPA) to n=28 patients (39% of ischemic stroke<4.5h) and directed n=17 patients (24% of infarcts <6hrs) for endovascular…