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Seizures, benign familial infantile, 5(BFIS5)

MedGen UID:
934695
•Concept ID:
C4310728
•
Disease or Syndrome
Synonyms: BFIS5; CONVULSIONS, BENIGN FAMILIAL INFANTILE, 5
 
Gene (location): SCN8A (12q13.13)
 
Monarch Initiative: MONDO:0014903
OMIM®: 617080

Definition

Benign familial infantile seizures-5 (BFIS5) is an autosomal dominant neurologic disorder characterized by onset of afebrile seizures during infancy. In most cases, the seizures remit by age 2 years, although some patients may have single or a few seizures later in childhood. The seizures respond well to treatment with sodium channel blockers, and patients have normal subsequent psychomotor development. Some patients may develop paroxysmal kinesigenic dyskinesia around puberty (summary by Gardella et al., 2016 and Anand et al., 2016). For a general phenotypic description and a discussion of genetic heterogeneity of benign familial infantile seizures, see BFIS1 (601764). [from OMIM]

Clinical features

From HPO
Focal impaired awareness seizure
MedGen UID:
543022
•Concept ID:
C0270834
•
Disease or Syndrome
Focal impaired awareness seizure (or focal seizure with impaired or lost awareness) is a type of focal-onset seizure characterized by some degree (which may be partial) of impairment of the person's awareness of themselves or their surroundings at any point during the seizure.
See: Feature record | Search on this feature
Bilateral tonic-clonic seizure
MedGen UID:
141670
•Concept ID:
C0494475
•
Sign or Symptom
A bilateral tonic-clonic seizure is a seizure defined by a tonic (bilateral increased tone, lasting seconds to minutes) and then a clonic (bilateral sustained rhythmic jerking) phase.
See: Feature record | Search on this feature
Paroxysmal dyskinesia
MedGen UID:
156242
•Concept ID:
C0752210
•
Disease or Syndrome
Episodic bouts of involuntary movements with dystonic, choreic, ballistic movements, or a combination thereof. There is no loss of consciousness during the attacks.
See: Feature record | Search on this feature

Term Hierarchy

CClinical test,  RResearch test,  OOMIM,  GGeneReviews,  VClinVar  

Professional guidelines

PubMed

Expanding the genotype-phenotype spectrum in SCN8A-related disorders.
Hebbar M, Al-Taweel N, Gill I, Boelman C, Dean RA, Goodchild SJ, Mezeyova J, Shuart NG, Johnson JP Jr, Lee J, Michoulas A, Huh LL, Armstrong L, Connolly MB, Demos MK
BMC Neurol 2024 Jan 17;24(1):31. doi: 10.1186/s12883-023-03478-y. PMID: 38233770Free PMC Article

Recent clinical studies

Etiology

Expanding the genotype-phenotype spectrum in SCN8A-related disorders.
Hebbar M, Al-Taweel N, Gill I, Boelman C, Dean RA, Goodchild SJ, Mezeyova J, Shuart NG, Johnson JP Jr, Lee J, Michoulas A, Huh LL, Armstrong L, Connolly MB, Demos MK
BMC Neurol 2024 Jan 17;24(1):31. doi: 10.1186/s12883-023-03478-y. PMID: 38233770Free PMC Article
WWOX developmental and epileptic encephalopathy: Understanding the epileptology and the mortality risk.
Oliver KL, Trivisano M, Mandelstam SA, De Dominicis A, Francis DI, Green TE, Muir AM, Chowdhary A, Hertzberg C, Goldhahn K, Metreau J, Prager C, Pinner J, Cardamone M, Myers KA, Leventer RJ, Lesca G, Bahlo M, Hildebrand MS, Mefford HC, Kaindl AM, Specchio N, Scheffer IE
Epilepsia 2023 May;64(5):1351-1367. Epub 2023 Mar 11 doi: 10.1111/epi.17542. PMID: 36779245Free PMC Article
Epidemiology of Developmental and Epileptic Encephalopathy and of Intellectual Disability and Epilepsy in Children.
Poke G, Stanley J, Scheffer IE, Sadleir LG
Neurology 2023 Mar 28;100(13):e1363-e1375. Epub 2022 Dec 29 doi: 10.1212/WNL.0000000000206758. PMID: 36581463Free PMC Article
Efficacy and Safety of Fenfluramine for the Treatment of Seizures Associated With Lennox-Gastaut Syndrome: A Randomized Clinical Trial.
Knupp KG, Scheffer IE, Ceulemans B, Sullivan JE, Nickels KC, Lagae L, Guerrini R, Zuberi SM, Nabbout R, Riney K, Shore S, Agarwal A, Lock M, Farfel GM, Galer BS, Gammaitoni AR, Davis R, Gil-Nagel A
JAMA Neurol 2022 Jun 1;79(6):554-564. doi: 10.1001/jamaneurol.2022.0829. PMID: 35499850Free PMC Article
Genotype-phenotype correlations in SCN8A-related disorders reveal prognostic and therapeutic implications.
Johannesen KM, Liu Y, Koko M, Gjerulfsen CE, Sonnenberg L, Schubert J, Fenger CD, Eltokhi A, Rannap M, Koch NA, Lauxmann S, Krüger J, Kegele J, Canafoglia L, Franceschetti S, Mayer T, Rebstock J, Zacher P, Ruf S, Alber M, Sterbova K, Lassuthová P, Vlckova M, Lemke JR, Platzer K, Krey I, Heine C, Wieczorek D, Kroell-Seger J, Lund C, Klein KM, Au PYB, Rho JM, Ho AW, Masnada S, Veggiotti P, Giordano L, Accorsi P, Hoei-Hansen CE, Striano P, Zara F, Verhelst H, Verhoeven JS, Braakman HMH, van der Zwaag B, Harder AVE, Brilstra E, Pendziwiat M, Lebon S, Vaccarezza M, Le NM, Christensen J, Grønborg S, Scherer SW, Howe J, Fazeli W, Howell KB, Leventer R, Stutterd C, Walsh S, Gerard M, Gerard B, Matricardi S, Bonardi CM, Sartori S, Berger A, Hoffman-Zacharska D, Mastrangelo M, Darra F, Vøllo A, Motazacker MM, Lakeman P, Nizon M, Betzler C, Altuzarra C, Caume R, Roubertie A, Gélisse P, Marini C, Guerrini R, Bilan F, Tibussek D, Koch-Hogrebe M, Perry MS, Ichikawa S, Dadali E, Sharkov A, Mishina I, Abramov M, Kanivets I, Korostelev S, Kutsev S, Wain KE, Eisenhauer N, Wagner M, Savatt JM, Müller-Schlüter K, Bassan H, Borovikov A, Nassogne MC, Destrée A, Schoonjans AS, Meuwissen M, Buzatu M, Jansen A, Scalais E, Srivastava S, Tan WH, Olson HE, Loddenkemper T, Poduri A, Helbig KL, Helbig I, Fitzgerald MP, Goldberg EM, Roser T, Borggraefe I, Brünger T, May P, Lal D, Lederer D, Rubboli G, Heyne HO, Lesca G, Hedrich UBS, Benda J, Gardella E, Lerche H, Møller RS
Brain 2022 Sep 14;145(9):2991-3009. doi: 10.1093/brain/awab321. PMID: 34431999Free PMC Article

Diagnosis

Epidemiology of Developmental and Epileptic Encephalopathy and of Intellectual Disability and Epilepsy in Children.
Poke G, Stanley J, Scheffer IE, Sadleir LG
Neurology 2023 Mar 28;100(13):e1363-e1375. Epub 2022 Dec 29 doi: 10.1212/WNL.0000000000206758. PMID: 36581463Free PMC Article
Efficacy and Safety of Fenfluramine for the Treatment of Seizures Associated With Lennox-Gastaut Syndrome: A Randomized Clinical Trial.
Knupp KG, Scheffer IE, Ceulemans B, Sullivan JE, Nickels KC, Lagae L, Guerrini R, Zuberi SM, Nabbout R, Riney K, Shore S, Agarwal A, Lock M, Farfel GM, Galer BS, Gammaitoni AR, Davis R, Gil-Nagel A
JAMA Neurol 2022 Jun 1;79(6):554-564. doi: 10.1001/jamaneurol.2022.0829. PMID: 35499850Free PMC Article
Neonatal seizures.
Plouin P, Kaminska A
Handb Clin Neurol 2013;111:467-76. doi: 10.1016/B978-0-444-52891-9.00051-8. PMID: 23622196
Neonatal seizures and syndromes.
Tharp BR
Epilepsia 2002;43 Suppl 3:2-10. doi: 10.1046/j.1528-1157.43.s.3.11.x. PMID: 12060001
Epilepsy in children.
Arnold ST, Dodson WE
Baillieres Clin Neurol 1996 Dec;5(4):783-802. PMID: 9068881

Therapy

Efficacy and Safety of Fenfluramine for the Treatment of Seizures Associated With Lennox-Gastaut Syndrome: A Randomized Clinical Trial.
Knupp KG, Scheffer IE, Ceulemans B, Sullivan JE, Nickels KC, Lagae L, Guerrini R, Zuberi SM, Nabbout R, Riney K, Shore S, Agarwal A, Lock M, Farfel GM, Galer BS, Gammaitoni AR, Davis R, Gil-Nagel A
JAMA Neurol 2022 Jun 1;79(6):554-564. doi: 10.1001/jamaneurol.2022.0829. PMID: 35499850Free PMC Article
Genotype-phenotype correlations in SCN8A-related disorders reveal prognostic and therapeutic implications.
Johannesen KM, Liu Y, Koko M, Gjerulfsen CE, Sonnenberg L, Schubert J, Fenger CD, Eltokhi A, Rannap M, Koch NA, Lauxmann S, Krüger J, Kegele J, Canafoglia L, Franceschetti S, Mayer T, Rebstock J, Zacher P, Ruf S, Alber M, Sterbova K, Lassuthová P, Vlckova M, Lemke JR, Platzer K, Krey I, Heine C, Wieczorek D, Kroell-Seger J, Lund C, Klein KM, Au PYB, Rho JM, Ho AW, Masnada S, Veggiotti P, Giordano L, Accorsi P, Hoei-Hansen CE, Striano P, Zara F, Verhelst H, Verhoeven JS, Braakman HMH, van der Zwaag B, Harder AVE, Brilstra E, Pendziwiat M, Lebon S, Vaccarezza M, Le NM, Christensen J, Grønborg S, Scherer SW, Howe J, Fazeli W, Howell KB, Leventer R, Stutterd C, Walsh S, Gerard M, Gerard B, Matricardi S, Bonardi CM, Sartori S, Berger A, Hoffman-Zacharska D, Mastrangelo M, Darra F, Vøllo A, Motazacker MM, Lakeman P, Nizon M, Betzler C, Altuzarra C, Caume R, Roubertie A, Gélisse P, Marini C, Guerrini R, Bilan F, Tibussek D, Koch-Hogrebe M, Perry MS, Ichikawa S, Dadali E, Sharkov A, Mishina I, Abramov M, Kanivets I, Korostelev S, Kutsev S, Wain KE, Eisenhauer N, Wagner M, Savatt JM, Müller-Schlüter K, Bassan H, Borovikov A, Nassogne MC, Destrée A, Schoonjans AS, Meuwissen M, Buzatu M, Jansen A, Scalais E, Srivastava S, Tan WH, Olson HE, Loddenkemper T, Poduri A, Helbig KL, Helbig I, Fitzgerald MP, Goldberg EM, Roser T, Borggraefe I, Brünger T, May P, Lal D, Lederer D, Rubboli G, Heyne HO, Lesca G, Hedrich UBS, Benda J, Gardella E, Lerche H, Møller RS
Brain 2022 Sep 14;145(9):2991-3009. doi: 10.1093/brain/awab321. PMID: 34431999Free PMC Article
The spectrum of intermediate SCN8A-related epilepsy.
Johannesen KM, Gardella E, Encinas AC, Lehesjoki AE, Linnankivi T, Petersen MB, Lund ICB, Blichfeldt S, Miranda MJ, Pal DK, Lascelles K, Procopis P, Orsini A, Bonuccelli A, Giacomini T, Helbig I, Fenger CD, Sisodiya SM, Hernandez-Hernandez L, Krithika S, Rumple M, Masnada S, Valente M, Cereda C, Giordano L, Accorsi P, Bürki SE, Mancardi M, Korff C, Guerrini R, von Spiczak S, Hoffman-Zacharska D, Mazurczak T, Coppola A, Buono S, Vecchi M, Hammer MF, Varesio C, Veggiotti P, Lal D, Brünger T, Zara F, Striano P, Rubboli G, Møller RS
Epilepsia 2019 May;60(5):830-844. Epub 2019 Apr 10 doi: 10.1111/epi.14705. PMID: 30968951
Epilepsy in children.
Arnold ST, Dodson WE
Baillieres Clin Neurol 1996 Dec;5(4):783-802. PMID: 9068881
'Benign' familial neonatal convulsions.
Webb R, Bobele G
J Child Neurol 1990 Oct;5(4):295-8. doi: 10.1177/088307389000500404. PMID: 2246482

Prognosis

Genotype-phenotype correlations in SCN8A-related disorders reveal prognostic and therapeutic implications.
Johannesen KM, Liu Y, Koko M, Gjerulfsen CE, Sonnenberg L, Schubert J, Fenger CD, Eltokhi A, Rannap M, Koch NA, Lauxmann S, Krüger J, Kegele J, Canafoglia L, Franceschetti S, Mayer T, Rebstock J, Zacher P, Ruf S, Alber M, Sterbova K, Lassuthová P, Vlckova M, Lemke JR, Platzer K, Krey I, Heine C, Wieczorek D, Kroell-Seger J, Lund C, Klein KM, Au PYB, Rho JM, Ho AW, Masnada S, Veggiotti P, Giordano L, Accorsi P, Hoei-Hansen CE, Striano P, Zara F, Verhelst H, Verhoeven JS, Braakman HMH, van der Zwaag B, Harder AVE, Brilstra E, Pendziwiat M, Lebon S, Vaccarezza M, Le NM, Christensen J, Grønborg S, Scherer SW, Howe J, Fazeli W, Howell KB, Leventer R, Stutterd C, Walsh S, Gerard M, Gerard B, Matricardi S, Bonardi CM, Sartori S, Berger A, Hoffman-Zacharska D, Mastrangelo M, Darra F, Vøllo A, Motazacker MM, Lakeman P, Nizon M, Betzler C, Altuzarra C, Caume R, Roubertie A, Gélisse P, Marini C, Guerrini R, Bilan F, Tibussek D, Koch-Hogrebe M, Perry MS, Ichikawa S, Dadali E, Sharkov A, Mishina I, Abramov M, Kanivets I, Korostelev S, Kutsev S, Wain KE, Eisenhauer N, Wagner M, Savatt JM, Müller-Schlüter K, Bassan H, Borovikov A, Nassogne MC, Destrée A, Schoonjans AS, Meuwissen M, Buzatu M, Jansen A, Scalais E, Srivastava S, Tan WH, Olson HE, Loddenkemper T, Poduri A, Helbig KL, Helbig I, Fitzgerald MP, Goldberg EM, Roser T, Borggraefe I, Brünger T, May P, Lal D, Lederer D, Rubboli G, Heyne HO, Lesca G, Hedrich UBS, Benda J, Gardella E, Lerche H, Møller RS
Brain 2022 Sep 14;145(9):2991-3009. doi: 10.1093/brain/awab321. PMID: 34431999Free PMC Article
Neonatal seizures.
Plouin P, Kaminska A
Handb Clin Neurol 2013;111:467-76. doi: 10.1016/B978-0-444-52891-9.00051-8. PMID: 23622196
Epilepsy in children.
Arnold ST, Dodson WE
Baillieres Clin Neurol 1996 Dec;5(4):783-802. PMID: 9068881
'Benign' familial neonatal convulsions.
Webb R, Bobele G
J Child Neurol 1990 Oct;5(4):295-8. doi: 10.1177/088307389000500404. PMID: 2246482
Benign neonatal seizures.
Miles DK, Holmes GL
J Clin Neurophysiol 1990 Jul;7(3):369-79. doi: 10.1097/00004691-199007000-00004. PMID: 2211994

Clinical prediction guides

Expanding the genotype-phenotype spectrum in SCN8A-related disorders.
Hebbar M, Al-Taweel N, Gill I, Boelman C, Dean RA, Goodchild SJ, Mezeyova J, Shuart NG, Johnson JP Jr, Lee J, Michoulas A, Huh LL, Armstrong L, Connolly MB, Demos MK
BMC Neurol 2024 Jan 17;24(1):31. doi: 10.1186/s12883-023-03478-y. PMID: 38233770Free PMC Article
Neurodevelopmental outcomes in a cohort of Australian families with self-limited familial epilepsy of neonatal/infantile onset.
Innes EA, Marne FAL, Macintosh R, Nevin SM, Briggs NE, Vivekanandarajah S, Webster RI, Sachdev RK, Bye AME
Seizure 2024 Feb;115:1-13. Epub 2023 Dec 26 doi: 10.1016/j.seizure.2023.12.013. PMID: 38160512
Efficacy and Safety of Fenfluramine for the Treatment of Seizures Associated With Lennox-Gastaut Syndrome: A Randomized Clinical Trial.
Knupp KG, Scheffer IE, Ceulemans B, Sullivan JE, Nickels KC, Lagae L, Guerrini R, Zuberi SM, Nabbout R, Riney K, Shore S, Agarwal A, Lock M, Farfel GM, Galer BS, Gammaitoni AR, Davis R, Gil-Nagel A
JAMA Neurol 2022 Jun 1;79(6):554-564. doi: 10.1001/jamaneurol.2022.0829. PMID: 35499850Free PMC Article
PRRT2 mutations in Japanese patients with benign infantile epilepsy and paroxysmal kinesigenic dyskinesia.
Okumura A, Shimojima K, Kurahashi H, Numoto S, Shimada S, Ishii A, Ohmori I, Takahashi S, Awaya T, Kubota T, Sakakibara T, Ishihara N, Hattori A, Torisu H, Tohyama J, Inoue T, Haibara A, Nishida T, Yuhara Y, Miya K, Tanaka R, Hirose S, Yamamoto T
Seizure 2019 Oct;71:1-5. Epub 2019 May 20 doi: 10.1016/j.seizure.2019.05.017. PMID: 31154286
The spectrum of intermediate SCN8A-related epilepsy.
Johannesen KM, Gardella E, Encinas AC, Lehesjoki AE, Linnankivi T, Petersen MB, Lund ICB, Blichfeldt S, Miranda MJ, Pal DK, Lascelles K, Procopis P, Orsini A, Bonuccelli A, Giacomini T, Helbig I, Fenger CD, Sisodiya SM, Hernandez-Hernandez L, Krithika S, Rumple M, Masnada S, Valente M, Cereda C, Giordano L, Accorsi P, Bürki SE, Mancardi M, Korff C, Guerrini R, von Spiczak S, Hoffman-Zacharska D, Mazurczak T, Coppola A, Buono S, Vecchi M, Hammer MF, Varesio C, Veggiotti P, Lal D, Brünger T, Zara F, Striano P, Rubboli G, Møller RS
Epilepsia 2019 May;60(5):830-844. Epub 2019 Apr 10 doi: 10.1111/epi.14705. PMID: 30968951

Recent systematic reviews

Guidelines on the diagnosis, clinical assessments, treatment and management for CLN2 disease patients.
Mole SE, Schulz A, Badoe E, Berkovic SF, de Los Reyes EC, Dulz S, Gissen P, Guelbert N, Lourenco CM, Mason HL, Mink JW, Murphy N, Nickel M, Olaya JE, Scarpa M, Scheffer IE, Simonati A, Specchio N, Von Löbbecke I, Wang RY, Williams RE
Orphanet J Rare Dis 2021 Apr 21;16(1):185. doi: 10.1186/s13023-021-01813-5. PMID: 33882967Free PMC Article

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