Developmental and epilepsy spectrum of Poirier–Bienvenu neurodevelopmental syndrome: description of a new case study and review of the available literature

Early seizure onset, clustered seizures and delayed development in both males and females were early clinical markers in most patients with CSNK2B mutations. The entity of neurodevelopmental abnormalities was related to epilepsy severity. Prospective studies are required to better assess the relationship between epilepsy and developmental outcomes in this condition.

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