FROM NOCTURNAL FRONTAL LOBE EPILEPSY TO SLEEP-RELATED HYPERMOTOR SEIZURES: A 35-YEAR DIAGNOSTIC CHALLENGE

Nocturnal frontal lobe epilepsy (NFLE) is a focal epilepsy with seizures arising mainly during sleep and characterized by complex, often bizarre, motor behavior or sustained dystonic posturing. First described in 1981, it was initially considered a motor disorder of sleep and was named Nocturnal Paroxysmal Dystonia (NPD). The unusual seizure semiology, onset during sleep, and often uninformative scalp EEG and brain MRI make it difficult to distinguish NPD attacks from other non-epileptic nocturnal paroxysmal events, namely parasomnias.

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