RT Journal Article T1 Sleep-related hypermotor epilepsy with genetic diagnosis: description of a case series in a tertiary referral hospital. A1 Arenas-Cabrera, Carmen A1 Baena-Palomino, Pablo A1 Sánchez-García, Javier A1 Oliver-Romero, María A1 Chocrón-González, Yamin A1 Caballero-Martínez, Manuel K1 genetics K1 nocturnal frontal lobe epilepsy K1 sleep-related hypermotor epilepsy AB Sleep-related hypermotor epilepsy (SHE) is characterized by asymmetric tonic/dystonic posturing and/or complex hyperkinetic seizures occurring mostly during sleep. Experts agree that SHE should be considered a unique syndrome. We present 8 cases of SHE for which a genetic diagnosis was carried out using a multigene epilepsy panel. We retrospectively screened familial and isolated cases of SHE in current follow-ups in our center. We included 8 (5F/3M) patients, 5 of whom had a positive familial history of epilepsy. We identified a pathogenic mutation in CHRNA4, CHRNB2, and 3 different pathogenic changes in DEPDC5. Awareness of SHE needs to be raised, given its implications for finding an appropriate treatment, its relationship to cognitive and psychiatric comorbidities, and the opportunity to prevent the disorder in the descendants. We present our series with their clinical, radiological, electroencephalographic, and genetic characteristics, in which we found 3 pathogenic mutations in the DEPDC5 gene but not previously reported in the literature. Identifying new pathogenic mutations or new genes responsible for SHE will facilitate a better understanding of the disease and a correct genetic counseling. SN 1179-5735 YR 2022 FD 2022-02-11 LK http://hdl.handle.net/10668/20222 UL http://hdl.handle.net/10668/20222 LA en DS RISalud RD Apr 10, 2025