Symptoms of acute hemiplegia may be hemianesthesia, hemianopsia and aphasia. The onset of symptoms is sudden and peaks within a few hours. The onset of hemiplegia may be preceded or followed by generalized seizures and may be accompanied by disturbances in consciousness, vomiting, and headache.
In epileptic forms as well as in diabetes, infections, and trauma, a thorough history investigation is essential to identify the causes that led to the onset of hemiplegia. Cerebrovascular problems are more difficult to diagnose and have a semeiological pattern similar to a hemiplegic migraine.
There is no emergency treatment available, but there are general norms that serve clinical control of the patient: hydration, monitoring, correction of hypoxia, and correction of hemoconcentration.
Source: Medical Emergencies in Pediatrics by Mediserve edited by Maurizio Vanelli