acute neurologic illness
Neurology A condition defined by the Natl Childhood Encephalopathy Study–UK as 1. Acute or subacute encephalitis, encephalomyelitis, encephalopathy–eg, postinfectious encephalitis but not pyogenic infection.
2. Unexplained loss of consciousness.
3. Convulsions lasting >1⁄2 hr, or followed by coma lasting ≥ 2 hrs or by paralysis or other neurologic signs not previously present.
4. Infantile spasms.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.