Generalized Epilepsy with Febrile Seizures Plus, Type 1 (GEFS+1)

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OMIM 57 604233 MedGen 42 C1858672 MeSH 44 D003294 D004829

SNOMED-CT via HPO 69 263681008 54200006 230413002 432241000124101 50866000 79631006 41497008 189198006 42365007 more UMLS 73 C1858672

OMIM : ⁵⁷ Scheffer and Berkovic (1997) and Singh et al. (1999) described a clinical subset of febrile seizures, termed 'generalized epilepsy with febrile seizures plus' (GEFS+). Classic febrile seizures (see, e.g., FEB1, 121210) affect approximately 3% of children under 6 years of age and are by far the most common seizure disorder; classic febrile seizures typically spontaneously remit by age 6 years. GEFS+ occurs in a small proportion of children with febrile seizures who either have febrile seizures extending beyond age 6 years or develop epilepsy with afebrile seizures. Patients with GEFS+ express a highly variable phenotype combining febrile seizures, generalized seizures often precipitated by fever at age 6 years or more, absence seizures, partial seizures, myoclonic seizures, or atonic seizures, with a variable degree of severity (summary by Wallace et al., 1998). Deprez et al. (2009) reviewed the genetics of epilepsy syndromes starting in the first year of life, and included a diagnostic algorithm. (604233)

MalaCards based summary : Generalized Epilepsy with Febrile Seizures Plus, Type 1, also known as epilepsy, generalized, with febrile seizures plus, type 1, is related to febrile seizures and generalized epilepsy with febrile seizures plus, and has symptoms including absence seizures An important gene associated with Generalized Epilepsy with Febrile Seizures Plus, Type 1 is SCN1B (Sodium Voltage-Gated Channel Beta Subunit 1), and among its related pathways/superpathways are G-Beta Gamma Signaling and Cardiac conduction. Related phenotypes are generalized tonic-clonic seizures and absence seizures

UniProtKB/Swiss-Prot : ⁷⁵ Generalized epilepsy with febrile seizures plus 1: A rare autosomal dominant, familial condition with incomplete penetrance and large intrafamilial variability. Patients display febrile seizures persisting sometimes beyond the age of 6 years and/or a variety of afebrile seizure types. This disease combines febrile seizures, generalized seizures often precipitated by fever at age 6 years or more, and partial seizures, with a variable degree of severity.

Clinical features from OMIM:

604233

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