Section 1: Dispatch and EMS Screening

Eligible patients are those who present with potentially disabling, acute neurological symptoms suggestive of an acute stroke within 6.0 hours of symptom onset. EVT may be considered for select patients for whom treatment can be initiated within an extended 6 to 12-hour window from stroke symptom onset who meet clinical and imaging criteria.

The Ontario Paramedic Prompt Card for Acute Stroke Protocol has been provisionally approved by the Ontario Base Hospital Medical Advisory Committee to extend the time of onset for stroke symptoms to arrival at a Stroke Centre from 3.5 hours to 6 hours (pending final approval).