The Recognition of Stroke in the Emergency Room (ROSIER) scale is a clinical calculator used in the emergency department setting to identify patients who are likely to have had a stroke. It is specifically designed for patients presenting with acute neurological symptoms. The ROSIER scale includes seven items: loss of consciousness or syncope, seizure activity, facial weakness, arm weakness, leg weakness, speech disturbance, and visual field defects.
The clinical utility of the ROSIER scale is to aid in the early recognition of stroke, allowing for prompt initiation of appropriate treatment and referral to specialist care if needed. It is particularly useful in distinguishing stroke from other conditions that can mimic its symptoms, such as seizures or migraines.
There are no specific exclusion criteria for the use of the ROSIER scale, but it should be noted that it is less reliable in patients with pre-existing neurological deficits or in those with non-stroke causes of acute neurological symptoms. It is also not designed to differentiate between ischemic and hemorrhagic stroke.
Reference
Azlisham Mohd Nor, John Davis, Bas Sen et al. The Recognition of Stroke in the Emergency Room (ROSIER) scale: development and validation of a stroke recognition instrument. Lancet Neurol. 2005 Nov;4(11):727-34.
Open reference URL