Hypsarrhythmia is very chaotic and disorganized brain electrical activity with no recognizable pattern, whereas a normal brain electrical activity shows clear separation between each signal …

Infantile spasms are a specific type of seizure that begin in the first one to two years of life. Infantile spasms can be associated with a developmental regression (a loss of developmental …

Hypsarrhythmia is defined as a chaotic and disorganized EEG background pattern characterized by high amplitude slow waves and asynchronous, nonrhythmic spikes that vary in duration and …

Sep 15, 2025 · Infantile spasms represent an age-specific epileptic disorder of infancy and early childhood. Children with infantile spasms typically exhibit epileptic spasms along with the …

In this study, we used the NISC database to evaluate a cohort of patients with infantile spasms without hypsarrhythmia and compare them to those with hypsarrhythmia in terms of …

Apr 28, 2023 · Hypsarrhythmia (“hyps” means mountainous) is a very high voltage (usually >500μV), disorganized pattern first termed by Gibbs in the 1950’s. The EEG is irregular, …

Jun 22, 2023 · This article explores what hypsarrhythmia might look like on an EEG, what types of conditions this result might signal, and what to expect when hypsarrhythmia is noted on your test.

Nov 3, 2025 · West syndrome is a seizure disorder (a form of epilepsy) that begins in infancy. It is often caused by brain damage due to trauma or illness. A specific type of seizure called …

Jul 25, 2025 · Hypsarrhythmia is a highly abnormal EEG pattern characterized by chaotic, high-amplitude brainwaves, serving as a hallmark feature of West Syndrome, a severe form of …

Hypsarrhythmia is a neurological disorder that is identified by a disordered pattern of brain waves on an electroencephalogram (EEG). This pattern is characterized by irregular and chaotic high …