Stroke Cincinnati Prehospital Stroke Severity Scale Evaluation iN prEhospital

Evaluation of the Performances of the Cincinnati Prehospital Stroke Severity Scale Realized During Telephone Call With Emergency Department Physicians to Predict Large-vessel Occlusion

The effectiveness of acute ischemic stroke (AIS) management has improved considerably in recent years with thrombolysis and more recently with mechanical thrombectomy (MT). Currently, mechanical thrombectomy can only be performed in stroke unit with an interventional neuroradiology center by experienced/qualified interventional neuroradiologists. In the Rhone area, only one hospital has the authorization to perform mechanical thrombectomy. Therefore, transferring directly eligible acute ischemic stroke patients for mechanical thrombectomy to this center constitutes an important stake of the triage of suspected acute ischemic stroke patients. Some validated scores for the identification of severe strokes and large vessel occlusion, including the Cincinnati prehospital stroke severity scale (CPSSS), appear to be relevant for pre-hospital use in order to identify patients potentially eligible for mechanical thrombectomy and address them to a stoke unit with interventional radiology center.

Inclusion Criteria:

• Consecutive patients calling emergency medical services for suspected acute ischemic stroke

Exclusion Criteria:

• Symptom onset (or the last time the patient was seen without deficit ) of more than 6 hours