Extent of EEG monitoring for detecting epileptic spasms

Epileptic spasms (ES) are a distinct seizure type, which consist of brief tonic contraction of axial muscles, usually less than 5 seconds, and may be flexor, extensor or mixed. Infantile Spasms (IS) are a subtype of ES typically seen in infants between 2 months and 2 years of age, with peak age of onset around 5-6 months. Outside this age range, the term ES is more inclusive [1]. ES usually occur in clusters, often on awakening from sleep. International league against epilepsy (ILAE) classification [2] allows ES to be classified as generalized, focal or unknown onset.

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