West syndrome is characterized by cognitive deterioration along with infantile spasms and hypsarrhythmia
or modified hypsarrhythmia
on EEG.11 Children with IS require extensive evaluation to identify the etiology and an EEG is essential to confirm the diagnosis of infantile spasm.
Video electroencephalogram revealed hypsarrhythmia
consisting of bilateral high-amplitude irregular slow waves mixed with multifocal spikes or polyspikes in the interictal period, and clusters of spasms and transient tonic attacks were recorded.
However, burst-suppression patterns and hypsarrhythmia
on EEG predicted more severe disease and suggest that epilepsy might complicate cases of congenital Zika infection, they said.
Generalized epileptic activity and hypsarrhythmia
were found in 4 and 6 patients in Group II respectively.
The late forms of chronic seizures can appear as tonic seizures, myoclonic jerks, infantile spasms, multifocal epileptiform activity, or hypsarrhythmia
The initial electroencephalogram demonstrated a disorganized, high-amplitude background and multifocal, interictal epileptiform discharges consistent with hypsarrhythmia
. She was treated with vigabatrin with excellent clinical and electrophysiologic response.
 It is an epileptic encephalopathy characterised by epileptic spasms, electroencephalographic (EEG) evidence of hypsarrhythmia
and developmental delay or regression.
3) * Epilepsy, particularly infantile spasms (infantile spasms do not have to be accompanied by hypsarrhythmia
) * Cortical dysplasias such as cortical tubers, SENs or white-matter migration lines on MRl scan (these are unlikely to be visible on CT scan) (Fig.
Electroencephalography showed no epileptic discharge including hypsarrhythmia
Five infants initially had hypsarrhythmia
, indicating highly disorganized brain activity, and had spasms and neuromotor delays.
EEG was evaluated for abnormalities of background, spikes, polyspikes, slowing, hypsarrhythmia
and EEG pattern specific for any specific syndrome were looked.
pattern was observed on electroencephalogram (EEG) and synthetic adrenocorticotropic hormone (ACTH) treatment was initiated (Figure 1).