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Idiopathic generalized epilepsy(IGE; EIG)

MedGen UID:
75725
Concept ID:
C0270850
Disease or Syndrome
Synonyms: EIG; Generalised epilepsy
SNOMED CT: IGE - idiopathic generalized epilepsy (36803009); Idiopathic generalized epilepsy (36803009)
 
Related genes: EFHC1, CACNA1H, GABRB3, GABRA1, CLCN2, CACNB4
 
Monarch Initiative: MONDO:0005579
OMIM®: 600669
OMIM® Phenotypic series: PS600669

Definition

Idiopathic generalized epilepsy is a broad term that encompasses several common seizure phenotypes, classically including childhood absence epilepsy (CAE, ECA; see 600131), juvenile absence epilepsy (JAE, EJA; see 607631), juvenile myoclonic epilepsy (JME, EJM; see 254770), and epilepsy with grand mal seizures on awakening (Commission on Classification and Terminology of the International League Against Epilepsy, 1989). These recurrent seizures occur in the absence of detectable brain lesions and/or metabolic abnormalities. Seizures are initially generalized with a bilateral, synchronous, generalized, symmetrical EEG discharge (Zara et al., 1995; Lu and Wang, 2009). See also childhood absence epilepsy (ECA1; 600131), which has also been mapped to 8q24. Of note, benign neonatal epilepsy 2 (EBN2; 121201) is caused by mutation in the KCNQ3 gene (602232) on 8q24. Genetic Heterogeneity of Idiopathic Generalized Epilepsy EIG1 has been mapped to chromosome 8q24. Other loci or genes associated with EIG include EIG2 (606972) on 14q23; EIG3 (608762) on 9q32; EIG4 (609750) on 10q25; EIG5 (611934) on 10p11; EIG6 (611942), caused by mutation in the CACNA1H gene (607904) on 16p; EIG7 (604827) on 15q14; EIG8 (612899), caused by mutation in the CASR gene (601199) on 3q13.3-q21; EIG9 (607682), caused by mutation in the CACNB4 gene (601949) on 2q23; EIG10 (613060), caused by mutation in the GABRD gene (137163) on 1p36; EIG11 (607628), caused by variation in the CLCN2 gene (600570) on 3q36; EIG12 (614847), caused by mutation in the SLC2A1 gene (138140) on 1p34; EIG13 (611136), caused by mutation in the GABRA1 gene (137160) on 5q34; EIG14 (616685), caused by mutation in the SLC12A5 gene (606726) on 20q12; EIG15 (618357), caused by mutation in the RORB gene (601972) on 9q22; EIG16 (618596), caused by mutation in the KCNMA1 gene (600150) on chromosome 10q22; EIG17 (602477), caused by mutation in the HCN2 gene (602781) on chromosome 19p13.3; and EIG18 (619521) caused by mutation in the HCN4 gene (605206) on chromosome 15q24. [from OMIM]

Clinical features

From HPO
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.
Generalized myoclonic seizure
MedGen UID:
892704
Concept ID:
C4021759
Disease or Syndrome
A generalized myoclonic seizure is a type of generalized motor seizure characterized by bilateral, sudden, brief (<100 ms) involuntary single or multiple contraction of muscles or muscle groups of variable topography (axial, proximal limb, distal). Myoclonus is less regularly repetitive and less sustained than is clonus.
EEG with spike-wave complexes (>3.5 Hz)
MedGen UID:
892339
Concept ID:
C4023684
Finding
The presence of complexes of spikes and waves (>3.5 Hz) in electroencephalography (EEG).
Generalized non-motor (absence) seizure
MedGen UID:
1385688
Concept ID:
C4316903
Disease or Syndrome
A generalized non-motor (absence) seizure is a type of a type of dialeptic seizure that is of electrographically generalized onset. It is a generalized seizure characterized by an interruption of activities, a blank stare, and usually the person will be unresponsive when spoken to. Any ictal motor phenomena are minor in comparison to these non-motor features.

Term Hierarchy

Professional guidelines

PubMed

Hirsch E, French J, Scheffer IE, Bogacz A, Alsaadi T, Sperling MR, Abdulla F, Zuberi SM, Trinka E, Specchio N, Somerville E, Samia P, Riney K, Nabbout R, Jain S, Wilmshurst JM, Auvin S, Wiebe S, Perucca E, Moshé SL, Tinuper P, Wirrell EC
Epilepsia 2022 Jun;63(6):1475-1499. Epub 2022 May 3 doi: 10.1111/epi.17236. PMID: 35503716
Kiiski R, Basnyat P, Raitanen J, Rainesalo S, Peltola J, Mäkinen J
Acta Neurol Scand 2022 Apr;145(4):423-433. Epub 2021 Dec 7 doi: 10.1111/ane.13567. PMID: 34877648Free PMC Article
Thakran S, Guin D, Singh P, Singh P, Kukal S, Rawat C, Yadav S, Kushwaha SS, Srivastava AK, Hasija Y, Saso L, Ramachandran S, Kukreti R
Int J Mol Sci 2020 Oct 21;21(20) doi: 10.3390/ijms21207784. PMID: 33096746Free PMC Article

Recent clinical studies

Etiology

Cerulli Irelli E, Cocchi E, Morano A, Gesche J, Caraballo RH, Lattanzi S, Strigaro G, Catania C, Ferlazzo E, Pascarella A, Casciato S, Quarato P, Pizzanelli C, Pulitano P, Giuliano L, Viola V, Mostacci B, Fortunato F, Marini C, Di Gennaro G, Gambardella A, Labate A, Operto FF, Giallonardo AT, Baykan B, Beier CP, Di Bonaventura C; Women With Epilepsy Treatment Options and Research (WETOR) Study Group
JAMA Neurol 2023 Nov 1;80(11):1174-1181. doi: 10.1001/jamaneurol.2023.3400. PMID: 37782485Free PMC Article
Jiang T, Zhang X, Zhang M, Liu M, Zhu H, Sun Y
Epilepsy Behav 2023 Sep;146:109364. Epub 2023 Jul 29 doi: 10.1016/j.yebeh.2023.109364. PMID: 37523796
Lehner J, Frueh JS, Datta AN
Sleep Med Rev 2022 Oct;65:101689. Epub 2022 Aug 17 doi: 10.1016/j.smrv.2022.101689. PMID: 36037570
Thakran S, Guin D, Singh P, Singh P, Kukal S, Rawat C, Yadav S, Kushwaha SS, Srivastava AK, Hasija Y, Saso L, Ramachandran S, Kukreti R
Int J Mol Sci 2020 Oct 21;21(20) doi: 10.3390/ijms21207784. PMID: 33096746Free PMC Article
Saka E, Saygi S, Ciğer A, Selekler K
Seizure 1996 Dec;5(4):299-302. doi: 10.1016/s1059-1311(96)80024-0. PMID: 8952016

Diagnosis

Cerulli Irelli E, Cocchi E, Morano A, Gesche J, Caraballo RH, Lattanzi S, Strigaro G, Catania C, Ferlazzo E, Pascarella A, Casciato S, Quarato P, Pizzanelli C, Pulitano P, Giuliano L, Viola V, Mostacci B, Fortunato F, Marini C, Di Gennaro G, Gambardella A, Labate A, Operto FF, Giallonardo AT, Baykan B, Beier CP, Di Bonaventura C; Women With Epilepsy Treatment Options and Research (WETOR) Study Group
JAMA Neurol 2023 Nov 1;80(11):1174-1181. doi: 10.1001/jamaneurol.2023.3400. PMID: 37782485Free PMC Article
Lehner J, Frueh JS, Datta AN
Sleep Med Rev 2022 Oct;65:101689. Epub 2022 Aug 17 doi: 10.1016/j.smrv.2022.101689. PMID: 36037570
Hirsch E, French J, Scheffer IE, Bogacz A, Alsaadi T, Sperling MR, Abdulla F, Zuberi SM, Trinka E, Specchio N, Somerville E, Samia P, Riney K, Nabbout R, Jain S, Wilmshurst JM, Auvin S, Wiebe S, Perucca E, Moshé SL, Tinuper P, Wirrell EC
Epilepsia 2022 Jun;63(6):1475-1499. Epub 2022 May 3 doi: 10.1111/epi.17236. PMID: 35503716
Wirrell EC, Nabbout R, Scheffer IE, Alsaadi T, Bogacz A, French JA, Hirsch E, Jain S, Kaneko S, Riney K, Samia P, Snead OC, Somerville E, Specchio N, Trinka E, Zuberi SM, Balestrini S, Wiebe S, Cross JH, Perucca E, Moshé SL, Tinuper P
Epilepsia 2022 Jun;63(6):1333-1348. Epub 2022 May 3 doi: 10.1111/epi.17237. PMID: 35503715
Thakran S, Guin D, Singh P, Singh P, Kukal S, Rawat C, Yadav S, Kushwaha SS, Srivastava AK, Hasija Y, Saso L, Ramachandran S, Kukreti R
Int J Mol Sci 2020 Oct 21;21(20) doi: 10.3390/ijms21207784. PMID: 33096746Free PMC Article

Therapy

Cerulli Irelli E, Cocchi E, Morano A, Gesche J, Caraballo RH, Lattanzi S, Strigaro G, Catania C, Ferlazzo E, Pascarella A, Casciato S, Quarato P, Pizzanelli C, Pulitano P, Giuliano L, Viola V, Mostacci B, Fortunato F, Marini C, Di Gennaro G, Gambardella A, Labate A, Operto FF, Giallonardo AT, Baykan B, Beier CP, Di Bonaventura C; Women With Epilepsy Treatment Options and Research (WETOR) Study Group
JAMA Neurol 2023 Nov 1;80(11):1174-1181. doi: 10.1001/jamaneurol.2023.3400. PMID: 37782485Free PMC Article
Jiang T, Zhang X, Zhang M, Liu M, Zhu H, Sun Y
Epilepsy Behav 2023 Sep;146:109364. Epub 2023 Jul 29 doi: 10.1016/j.yebeh.2023.109364. PMID: 37523796
Chu H, Zhang X, Shi J, Zhou Z, Yang X
J Neurol 2023 Oct;270(10):4713-4728. Epub 2023 Jun 28 doi: 10.1007/s00415-023-11834-8. PMID: 37378757Free PMC Article
Lehner J, Frueh JS, Datta AN
Sleep Med Rev 2022 Oct;65:101689. Epub 2022 Aug 17 doi: 10.1016/j.smrv.2022.101689. PMID: 36037570
Wirrell EC, Nabbout R, Scheffer IE, Alsaadi T, Bogacz A, French JA, Hirsch E, Jain S, Kaneko S, Riney K, Samia P, Snead OC, Somerville E, Specchio N, Trinka E, Zuberi SM, Balestrini S, Wiebe S, Cross JH, Perucca E, Moshé SL, Tinuper P
Epilepsia 2022 Jun;63(6):1333-1348. Epub 2022 May 3 doi: 10.1111/epi.17237. PMID: 35503715

Prognosis

Jiang T, Zhang X, Zhang M, Liu M, Zhu H, Sun Y
Epilepsy Behav 2023 Sep;146:109364. Epub 2023 Jul 29 doi: 10.1016/j.yebeh.2023.109364. PMID: 37523796
Hirsch E, French J, Scheffer IE, Bogacz A, Alsaadi T, Sperling MR, Abdulla F, Zuberi SM, Trinka E, Specchio N, Somerville E, Samia P, Riney K, Nabbout R, Jain S, Wilmshurst JM, Auvin S, Wiebe S, Perucca E, Moshé SL, Tinuper P, Wirrell EC
Epilepsia 2022 Jun;63(6):1475-1499. Epub 2022 May 3 doi: 10.1111/epi.17236. PMID: 35503716
Wirrell EC, Nabbout R, Scheffer IE, Alsaadi T, Bogacz A, French JA, Hirsch E, Jain S, Kaneko S, Riney K, Samia P, Snead OC, Somerville E, Specchio N, Trinka E, Zuberi SM, Balestrini S, Wiebe S, Cross JH, Perucca E, Moshé SL, Tinuper P
Epilepsia 2022 Jun;63(6):1333-1348. Epub 2022 May 3 doi: 10.1111/epi.17237. PMID: 35503715
Zawar I, Knight EP
Pediatr Neurol 2021 Aug;121:75-80. Epub 2020 Dec 1 doi: 10.1016/j.pediatrneurol.2020.11.018. PMID: 34167046
Thakran S, Guin D, Singh P, Singh P, Kukal S, Rawat C, Yadav S, Kushwaha SS, Srivastava AK, Hasija Y, Saso L, Ramachandran S, Kukreti R
Int J Mol Sci 2020 Oct 21;21(20) doi: 10.3390/ijms21207784. PMID: 33096746Free PMC Article

Clinical prediction guides

Jiang T, Zhang X, Zhang M, Liu M, Zhu H, Sun Y
Epilepsy Behav 2023 Sep;146:109364. Epub 2023 Jul 29 doi: 10.1016/j.yebeh.2023.109364. PMID: 37523796
Lehner J, Frueh JS, Datta AN
Sleep Med Rev 2022 Oct;65:101689. Epub 2022 Aug 17 doi: 10.1016/j.smrv.2022.101689. PMID: 36037570
Zawar I, Knight EP
Pediatr Neurol 2021 Aug;121:75-80. Epub 2020 Dec 1 doi: 10.1016/j.pediatrneurol.2020.11.018. PMID: 34167046
Thakran S, Guin D, Singh P, Singh P, Kukal S, Rawat C, Yadav S, Kushwaha SS, Srivastava AK, Hasija Y, Saso L, Ramachandran S, Kukreti R
Int J Mol Sci 2020 Oct 21;21(20) doi: 10.3390/ijms21207784. PMID: 33096746Free PMC Article
Potschka H, Trinka E
Epilepsia 2019 Mar;60 Suppl 1:22-36. Epub 2018 Jun 28 doi: 10.1111/epi.14456. PMID: 29953584

Recent systematic reviews

Alencar SD, Cendes F, de Morais ABCG, Ribeiro VCAF, Frota NAF, Pinto LF
Seizure 2024 May;118:53-57. Epub 2024 Mar 31 doi: 10.1016/j.seizure.2024.03.015. PMID: 38640571
Jiang T, Zhang X, Zhang M, Liu M, Zhu H, Sun Y
Epilepsy Behav 2023 Sep;146:109364. Epub 2023 Jul 29 doi: 10.1016/j.yebeh.2023.109364. PMID: 37523796
Chu H, Zhang X, Shi J, Zhou Z, Yang X
J Neurol 2023 Oct;270(10):4713-4728. Epub 2023 Jun 28 doi: 10.1007/s00415-023-11834-8. PMID: 37378757Free PMC Article
Lehner J, Frueh JS, Datta AN
Sleep Med Rev 2022 Oct;65:101689. Epub 2022 Aug 17 doi: 10.1016/j.smrv.2022.101689. PMID: 36037570
Haerian BS, Baum L
Seizure 2013 Jan;22(1):53-8. Epub 2012 Nov 7 doi: 10.1016/j.seizure.2012.10.007. PMID: 23140995

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