Electrical status epilepticus during sleep in Mowat-Wilson syndrome

Brain & Development
Paolo BonanniFranco Fabbro

Abstract

Mowat-Wilson Syndrome (MWS) is a genetic rare disease. Epilepsy is present in 70-75% of Patients and an age-dependent electroclinical pattern has been described. Up to date, there are studies with overnight sleep EEGs, probably because of the severe intellectual disability (ID) and hyperactivity of these Patients. Our purpose was to verify the hypothesis that MWS Patients might have electrical status epilepticus in slow wave sleep (ESES pattern). A retrospective analysis of anamnestic and electrographic data was performed on 7 consecutive MWS Patients followed between 2007 and 2016. Only Patients with at least one overnight sleep EEG were included in the study. Five out of 7 Patients had overnight sleep EEG studies and were included in this study. All of them had an anterior ESES pattern with spike-and-wave index>85%. The architecture of sleep was abnormal. An ESES related regression of cognitive and motor functions with impact on daily activities (ESES-related syndrome) was demonstrated in 3 out of 5 (60%) Patients. In two Patients marked improvement of cognitive and motor performances was observed when the epileptiform activity during sleep was successfully controlled or it was spontaneously reduced. The clinical significance...Continue Reading

Citations

Jul 3, 2021·Genes·Duccio Maria CordelliEmilia Ricci

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