PEHO syndrome
Background
PEHO syndrome is a rare neurodegenerative condition which usually begins within the first few weeks of life. The condition takes its name from the following features: Progressive encephalopathy with (O)Edema, Hypsarrhythmia and Optic atrophy (PEHO).
Progressive encephalopathy is the term used to describe degenerative changes which take place in brain tissue; in PEHO syndrome, these changes characteristically occur in the cerebellum. The cerebellum is important for maintaining posture, co-ordinating head and eye movements and fine-tuning of muscles.