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Prehospital Stroke Scales as Screening Tools for Early Identification of Stroke and Transient Ischemic Attack.

Rapid and accurate detection of stroke by paramedics or other emergency clinicians at the time of first contact is crucial for timely initiation of appropriate treatment and with the rise of endovascular therapy, for delivery of patients to a stroke center. Several stroke recognition scales have been developed to support the initial triage. However, their accuracy remains uncertain, and there is no agreement which of the scales perform better.