Hypsarrhythmia is an abnormal pattern that appears on an EEG test. This pattern shows up as a specific and recognizable pattern of tall, wide waves on top of the background. Share on Pinterest Getty ...

Progressive encephalopathy with edema, hypsarrhythmia, and optic nerve atrophy (PEHO) syndrome is a rare, apparently autosomal recessive condition in which characteristic dysmorphic features are ...

Infantile spasms represent a severe epileptic encephalopathy predominantly affecting early childhood, with West syndrome constituting a well‐defined clinical subset marked by a triad of spasms, ...

The patient, 2 1/3 years old, first came to our attention at age 16 months. He is the only child of young, healthy, nonconsanguineous parents and was born at term after a normal pregnancy. The ...