These seizures are accompanied by high-amplitude electroencephalogram (EEG) waveforms, known as hypsarrhythmia. IESS has adverse prognostic implications for intellectual development.

These seizures are accompanied by high-amplitude electroencephalogram (EEG) waveforms, known as hypsarrhythmia. IESS has adverse prognostic implications for intellectual development.

Hypsarrhythmia is a brain wave pattern seen when seizures are not occurring and are indicated by chaotic, high-voltage spikes on an EEG. This pattern is present in wakefulness but is enhanced ...

EEG at 5 months showed hypsarrhythmia, as well as electroclinical spasms in the three siblings (Supplementary Figures S1 and S2). Epilepsy onset was associated with psychomotor arrest and poor ...

The main EEG patterns detected in the patients are listed in Table 1.The presence of a classic or modified hypsarrhythmia or a burst-suppression pattern was associated with drug-resistant epilepsy.

The EEG recorded 2 weeks later showed resolution of the hypsarrhythmia. The only remaining EEG abnormalities were intermittent, multifocal spikes with posterior dominance (Figures 1f and g).

Infantile spasms Results found that infants with an unknown epilepsy etiology, a normal MRI, an EEG displaying hypsarrhythmia, or those already receiving an AED were more likely to be administered ...

Progressive encephalopathy with edema, hypsarrhythmia, and optic nerve atrophy (PEHO) syndrome was first described in 1991 by Salonen et al in the Finnish population. [] It is an apparently ...

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 ...

Symptoms of IS include spasms of the limbs and trunk (extending or stiffening of the arms, legs, neck or trunk) that occur in clusters, an electroencephalography (EEG) pattern of hypsarrhythmia ...

Symptoms of IS include spasms of the limbs and trunk (extending or stiffening of the arms, legs, neck or trunk) that occur in clusters, an electroencephalography (EEG) pattern of hypsarrhythmia ...