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Developmental and epileptic encephalopathy 102(DEE102)

MedGen UID:
1812769
Concept ID:
C5676991
Disease or Syndrome
Synonyms: DEE102; DEVELOPMENTAL AND EPILEPTIC ENCEPHALOPATHY 102
 
Gene (location): SLC38A3 (3p21.31)
 
Monarch Initiative: MONDO:0030881
OMIM®: 619881

Definition

Developmental and epileptic encephalopathy-102 (DEE102) is an autosomal recessive neurodevelopmental disorder characterized by global developmental delay and severe to profoundly impaired intellectual development with inability to walk or speak. Most patients have onset of variable types of seizures within the first year of life, and the seizures tend to be refractory. Additional features include progressive microcephaly, visual impairment, axial hypotonia, peripheral hypertonia, and nonspecific brain imaging abnormalities (Marafi et al., 2022). For a general phenotypic description and a discussion of genetic heterogeneity of DEE, see 308350. [from OMIM]

Clinical features

From HPO
Atrial septal defect
MedGen UID:
6753
Concept ID:
C0018817
Congenital Abnormality
Atrial septal defect (ASD) is a congenital abnormality of the interatrial septum that enables blood flow between the left and right atria via the interatrial septum.
Situs inversus
MedGen UID:
1642262
Concept ID:
C4551493
Congenital Abnormality
A left-right reversal (or "mirror reflection") of the anatomical location of the major thoracic and abdominal organs.
Hepatomegaly
MedGen UID:
42428
Concept ID:
C0019209
Finding
Abnormally increased size of the liver.
Chronic constipation
MedGen UID:
98325
Concept ID:
C0401149
Sign or Symptom
Constipation for longer than three months with fewer than 3 bowel movements per week, straining, lumpy or hard stools, and a sensation of anorectal obstruction or incomplete defecation.
Gastroesophageal reflux
MedGen UID:
1368658
Concept ID:
C4317146
Finding
A condition in which the stomach contents leak backwards from the stomach into the esophagus through the lower esophageal sphincter.
Hyperreflexia
MedGen UID:
57738
Concept ID:
C0151889
Finding
Hyperreflexia is the presence of hyperactive stretch reflexes of the muscles.
Atypical behavior
MedGen UID:
535345
Concept ID:
C0233514
Mental or Behavioral Dysfunction
Atypical behavior is an abnormality in a person's actions, which can be controlled or modulated by the will of the individual. While abnormal behaviors can be difficult to control, they are distinct from other abnormal actions that cannot be affected by the individual's will.
Focal emotional seizure with laughing
MedGen UID:
78734
Concept ID:
C0270820
Disease or Syndrome
Focal emotional seizure with laughing (gelastic) is characterized by bursts of laughter or giggling, usually without appropriate related emotion of happiness, and described as 'mirthless'.
Tonic seizure
MedGen UID:
82855
Concept ID:
C0270844
Disease or Syndrome
A tonic seizure is a type of motor seizure characterized by unilateral or bilateral limb stiffening or elevation, often with neck stiffening.
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.
Epileptic encephalopathy
MedGen UID:
452596
Concept ID:
C0543888
Disease or Syndrome
A condition in which epileptiform abnormalities are believed to contribute to the progressive disturbance in cerebral function. Epileptic encephalaopathy is characterized by (1) electrographic EEG paroxysmal activity that is often aggressive, (2) seizures that are usually multiform and intractable, (3) cognitive, behavioral and neurological deficits that may be relentless, and (4) sometimes early death.
Global developmental delay
MedGen UID:
107838
Concept ID:
C0557874
Finding
A delay in the achievement of motor or mental milestones in the domains of development of a child, including motor skills, speech and language, cognitive skills, and social and emotional skills. This term should only be used to describe children younger than five years of age.
Inability to walk
MedGen UID:
107860
Concept ID:
C0560046
Finding
Incapability to ambulate.
Bilateral tonic-clonic seizure with focal onset
MedGen UID:
164077
Concept ID:
C0877017
Disease or Syndrome
A bilateral tonic-clonic seizure with focal onset is a focal-onset seizure which progresses into a bilateral tonic-clonic phase.
Focal motor status epilepticus
MedGen UID:
1716066
Concept ID:
C1396824
Disease or Syndrome
Status epilepticus with focal motor signs originating within networks limited to one hemisphere. Involves musculature in any form. The motor event could consist of an increase (positive) or decrease (negative) in muscle contraction to produce a movement.
Absent speech
MedGen UID:
340737
Concept ID:
C1854882
Finding
Complete lack of development of speech and language abilities.
Intellectual disability
MedGen UID:
811461
Concept ID:
C3714756
Mental or Behavioral Dysfunction
Intellectual disability, previously referred to as mental retardation, is characterized by subnormal intellectual functioning that occurs during the developmental period. It is defined by an IQ score below 70.
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.
Axial hypotonia
MedGen UID:
342959
Concept ID:
C1853743
Finding
Muscular hypotonia (abnormally low muscle tone) affecting the musculature of the trunk.
Microcephaly
MedGen UID:
1644158
Concept ID:
C4551563
Finding
Head circumference below 2 standard deviations below the mean for age and gender.
Visual impairment
MedGen UID:
777085
Concept ID:
C3665347
Finding
Visual impairment (or vision impairment) is vision loss (of a person) to such a degree as to qualify as an additional support need through a significant limitation of visual capability resulting from either disease, trauma, or congenital or degenerative conditions that cannot be corrected by conventional means, such as refractive correction, medication, or surgery.

Professional guidelines

PubMed

Bayat A, Fenger CD, Techlo TR, Højte AF, Nørgaard I, Hansen TF, Rubboli G, Møller RS, Group DCCRS
Neurotherapeutics 2022 Jul;19(4):1353-1367. Epub 2022 Jun 20 doi: 10.1007/s13311-022-01264-1. PMID: 35723786Free PMC Article

Recent clinical studies

Etiology

Gokce-Samar Z, Vetro A, De Bellescize J, Pisano T, Monteiro L, Penaud N, Korff CM, Fluss J, Marini C, Cesaroni E, Alvarez BM, Sanlaville D, Chatron N, Arzimanoglou AA, Labalme A, Cuddapah VA, Ruggiero SM, Lecoquierre F, Nicolas G, Marie GA, Lebas A, Testard HO, Helbig KL, Ruiz A, Ngoh A, Kurian MA, Reid K, Spaull R, Joset P, Ramantani G, Steindl K, Krenn M, Gerstl L, Vieker S, Craiu D, Pendziwiat M, Haldeman-Englert C, Kanivets I, Romanova I, Rajan DS, Rosenfeld JA, Au M, Grand K, Graham M Jr, Isapof A, Villeneuve N, Smol T, Caumes R, Zacher P, Neuser S, Tinschert S, Platzer K, Bartolomaeus T, Mohnke I, Radtke M, Jamra RA, Helbig I, Jansen FE, Koop K, Rudolf G, Küry S, Courchet J, Guerrini R, Lesca G
Neurology 2024 Jan 23;102(2):e207945. Epub 2023 Dec 22 doi: 10.1212/WNL.0000000000207945. PMID: 38165337
Hatoum R, Nathoo-Khedri N, Shlobin NA, Wang A, Weil AG, Fallah A
Seizure 2022 Nov;102:83-95. Epub 2022 Aug 31 doi: 10.1016/j.seizure.2022.08.013. PMID: 36209677
Cloppenborg T, van Schooneveld M, Hagemann A, Hopf JL, Kalbhenn T, Otte WM, Polster T, Bien CG, Braun KPJ
Neurology 2022 Jan 18;98(3):e225-e235. Epub 2021 Nov 18 doi: 10.1212/WNL.0000000000013065. PMID: 34795046
Datta AN
J Clin Neurophysiol 2021 Nov 1;38(6):536-541. doi: 10.1097/WNP.0000000000000722. PMID: 32496344
O'Callaghan FJ, Edwards SW, Alber FD, Hancock E, Johnson AL, Kennedy CR, Likeman M, Lux AL, Mackay M, Mallick AA, Newton RW, Nolan M, Pressler R, Rating D, Schmitt B, Verity CM, Osborne JP; participating investigators
Lancet Neurol 2017 Jan;16(1):33-42. Epub 2016 Nov 10 doi: 10.1016/S1474-4422(16)30294-0. PMID: 27838190

Diagnosis

Kahlon S, Barton CR, Abu Libdeh A, O'Malley JA, Pearson T, Waugh JL, Wu SW, Zea Vera AG, Kruer MC
Neurology 2024 Jan 23;102(2):e208050. Epub 2023 Dec 22 doi: 10.1212/WNL.0000000000208050. PMID: 38165345
Datta AN
J Clin Neurophysiol 2021 Nov 1;38(6):536-541. doi: 10.1097/WNP.0000000000000722. PMID: 32496344
Olson HE, Jean-Marçais N, Yang E, Heron D, Tatton-Brown K, van der Zwaag PA, Bijlsma EK, Krock BL, Backer E, Kamsteeg EJ, Sinnema M, Reijnders MRF, Bearden D, Begtrup A, Telegrafi A, Lunsing RJ, Burglen L, Lesca G, Cho MT, Smith LA, Sheidley BR, Moufawad El Achkar C, Pearl PL, Poduri A, Skraban CM, Tarpinian J, Nesbitt AI, Fransen van de Putte DE, Ruivenkamp CAL, Rump P, Chatron N, Sabatier I, De Bellescize J, Guibaud L, Sweetser DA, Waxler JL, Wierenga KJ; DDD Study, Donadieu J, Narayanan V, Ramsey KM; C4RCD Research Group, Nava C, Rivière JB, Vitobello A, Tran Mau-Them F, Philippe C, Bruel AL, Duffourd Y, Thomas L, Lelieveld SH, Schuurs-Hoeijmakers J, Brunner HG, Keren B, Thevenon J, Faivre L, Thomas G, Thauvin-Robinet C
Am J Hum Genet 2018 May 3;102(5):995-1007. Epub 2018 Apr 12 doi: 10.1016/j.ajhg.2018.03.005. PMID: 29656858Free PMC Article
O'Callaghan FJ, Edwards SW, Alber FD, Hancock E, Johnson AL, Kennedy CR, Likeman M, Lux AL, Mackay M, Mallick AA, Newton RW, Nolan M, Pressler R, Rating D, Schmitt B, Verity CM, Osborne JP; participating investigators
Lancet Neurol 2017 Jan;16(1):33-42. Epub 2016 Nov 10 doi: 10.1016/S1474-4422(16)30294-0. PMID: 27838190
Caplan R, Siddarth P, Vona P, Stahl L, Bailey C, Gurbani S, Sankar R, Donald Shields W
Epilepsia 2009 Nov;50(11):2397-407. Epub 2009 Jul 14 doi: 10.1111/j.1528-1167.2009.02199.x. PMID: 19624713

Therapy

Berg AT, Ludwig NN, Wojnaroski M, Chapman CAT, Hommer R, Conecker G, Hecker JZ, Downs J
Neurology 2024 Jan 9;102(1):e207958. Epub 2023 Dec 15 doi: 10.1212/WNL.0000000000207958. PMID: 38165374Free PMC Article
Katyayan A, Takacs DS, Vanderslice K, Riviello JJ
Seizure 2022 Apr;97:102-105. Epub 2022 Mar 24 doi: 10.1016/j.seizure.2022.03.016. PMID: 35390640
Verducci C, Friedman D, Donner E, Devinsky O
Neurology 2020 Apr 21;94(16):e1757-e1763. Epub 2020 Mar 26 doi: 10.1212/WNL.0000000000009295. PMID: 32217773Free PMC Article
O'Callaghan FJ, Edwards SW, Alber FD, Hancock E, Johnson AL, Kennedy CR, Likeman M, Lux AL, Mackay M, Mallick AA, Newton RW, Nolan M, Pressler R, Rating D, Schmitt B, Verity CM, Osborne JP; participating investigators
Lancet Neurol 2017 Jan;16(1):33-42. Epub 2016 Nov 10 doi: 10.1016/S1474-4422(16)30294-0. PMID: 27838190
Inoue H, Matsushige T, Hasegawa S, Abe A, Iida Y, Inoue T, Ichiyama T
Epilepsy Res 2012 Nov;102(1-2):8-12. Epub 2012 Jul 24 doi: 10.1016/j.eplepsyres.2012.07.002. PMID: 22831649

Prognosis

Cloppenborg T, van Schooneveld M, Hagemann A, Hopf JL, Kalbhenn T, Otte WM, Polster T, Bien CG, Braun KPJ
Neurology 2022 Jan 18;98(3):e225-e235. Epub 2021 Nov 18 doi: 10.1212/WNL.0000000000013065. PMID: 34795046
Olson HE, Jean-Marçais N, Yang E, Heron D, Tatton-Brown K, van der Zwaag PA, Bijlsma EK, Krock BL, Backer E, Kamsteeg EJ, Sinnema M, Reijnders MRF, Bearden D, Begtrup A, Telegrafi A, Lunsing RJ, Burglen L, Lesca G, Cho MT, Smith LA, Sheidley BR, Moufawad El Achkar C, Pearl PL, Poduri A, Skraban CM, Tarpinian J, Nesbitt AI, Fransen van de Putte DE, Ruivenkamp CAL, Rump P, Chatron N, Sabatier I, De Bellescize J, Guibaud L, Sweetser DA, Waxler JL, Wierenga KJ; DDD Study, Donadieu J, Narayanan V, Ramsey KM; C4RCD Research Group, Nava C, Rivière JB, Vitobello A, Tran Mau-Them F, Philippe C, Bruel AL, Duffourd Y, Thomas L, Lelieveld SH, Schuurs-Hoeijmakers J, Brunner HG, Keren B, Thevenon J, Faivre L, Thomas G, Thauvin-Robinet C
Am J Hum Genet 2018 May 3;102(5):995-1007. Epub 2018 Apr 12 doi: 10.1016/j.ajhg.2018.03.005. PMID: 29656858Free PMC Article
O'Callaghan FJ, Edwards SW, Alber FD, Hancock E, Johnson AL, Kennedy CR, Likeman M, Lux AL, Mackay M, Mallick AA, Newton RW, Nolan M, Pressler R, Rating D, Schmitt B, Verity CM, Osborne JP; participating investigators
Lancet Neurol 2017 Jan;16(1):33-42. Epub 2016 Nov 10 doi: 10.1016/S1474-4422(16)30294-0. PMID: 27838190
D'Angelo D, Lebon S, Chen Q, Martin-Brevet S, Snyder LG, Hippolyte L, Hanson E, Maillard AM, Faucett WA, Macé A, Pain A, Bernier R, Chawner SJ, David A, Andrieux J, Aylward E, Baujat G, Caldeira I, Conus P, Ferrari C, Forzano F, Gérard M, Goin-Kochel RP, Grant E, Hunter JV, Isidor B, Jacquette A, Jønch AE, Keren B, Lacombe D, Le Caignec C, Martin CL, Männik K, Metspalu A, Mignot C, Mukherjee P, Owen MJ, Passeggeri M, Rooryck-Thambo C, Rosenfeld JA, Spence SJ, Steinman KJ, Tjernagel J, Van Haelst M, Shen Y, Draganski B, Sherr EH, Ledbetter DH, van den Bree MB, Beckmann JS, Spiro JE, Reymond A, Jacquemont S, Chung WK; Cardiff University Experiences of Children With Copy Number Variants (ECHO) Study; 16p11.2 European Consortium; Simons Variation in Individuals Project (VIP) Consortium
JAMA Psychiatry 2016 Jan;73(1):20-30. doi: 10.1001/jamapsychiatry.2015.2123. PMID: 26629640Free PMC Article
Caplan R, Siddarth P, Vona P, Stahl L, Bailey C, Gurbani S, Sankar R, Donald Shields W
Epilepsia 2009 Nov;50(11):2397-407. Epub 2009 Jul 14 doi: 10.1111/j.1528-1167.2009.02199.x. PMID: 19624713

Clinical prediction guides

Kahlon S, Barton CR, Abu Libdeh A, O'Malley JA, Pearson T, Waugh JL, Wu SW, Zea Vera AG, Kruer MC
Neurology 2024 Jan 23;102(2):e208050. Epub 2023 Dec 22 doi: 10.1212/WNL.0000000000208050. PMID: 38165345
Gokce-Samar Z, Vetro A, De Bellescize J, Pisano T, Monteiro L, Penaud N, Korff CM, Fluss J, Marini C, Cesaroni E, Alvarez BM, Sanlaville D, Chatron N, Arzimanoglou AA, Labalme A, Cuddapah VA, Ruggiero SM, Lecoquierre F, Nicolas G, Marie GA, Lebas A, Testard HO, Helbig KL, Ruiz A, Ngoh A, Kurian MA, Reid K, Spaull R, Joset P, Ramantani G, Steindl K, Krenn M, Gerstl L, Vieker S, Craiu D, Pendziwiat M, Haldeman-Englert C, Kanivets I, Romanova I, Rajan DS, Rosenfeld JA, Au M, Grand K, Graham M Jr, Isapof A, Villeneuve N, Smol T, Caumes R, Zacher P, Neuser S, Tinschert S, Platzer K, Bartolomaeus T, Mohnke I, Radtke M, Jamra RA, Helbig I, Jansen FE, Koop K, Rudolf G, Küry S, Courchet J, Guerrini R, Lesca G
Neurology 2024 Jan 23;102(2):e207945. Epub 2023 Dec 22 doi: 10.1212/WNL.0000000000207945. PMID: 38165337
Cloppenborg T, van Schooneveld M, Hagemann A, Hopf JL, Kalbhenn T, Otte WM, Polster T, Bien CG, Braun KPJ
Neurology 2022 Jan 18;98(3):e225-e235. Epub 2021 Nov 18 doi: 10.1212/WNL.0000000000013065. PMID: 34795046
Olson HE, Jean-Marçais N, Yang E, Heron D, Tatton-Brown K, van der Zwaag PA, Bijlsma EK, Krock BL, Backer E, Kamsteeg EJ, Sinnema M, Reijnders MRF, Bearden D, Begtrup A, Telegrafi A, Lunsing RJ, Burglen L, Lesca G, Cho MT, Smith LA, Sheidley BR, Moufawad El Achkar C, Pearl PL, Poduri A, Skraban CM, Tarpinian J, Nesbitt AI, Fransen van de Putte DE, Ruivenkamp CAL, Rump P, Chatron N, Sabatier I, De Bellescize J, Guibaud L, Sweetser DA, Waxler JL, Wierenga KJ; DDD Study, Donadieu J, Narayanan V, Ramsey KM; C4RCD Research Group, Nava C, Rivière JB, Vitobello A, Tran Mau-Them F, Philippe C, Bruel AL, Duffourd Y, Thomas L, Lelieveld SH, Schuurs-Hoeijmakers J, Brunner HG, Keren B, Thevenon J, Faivre L, Thomas G, Thauvin-Robinet C
Am J Hum Genet 2018 May 3;102(5):995-1007. Epub 2018 Apr 12 doi: 10.1016/j.ajhg.2018.03.005. PMID: 29656858Free PMC Article
Caplan R, Siddarth P, Vona P, Stahl L, Bailey C, Gurbani S, Sankar R, Donald Shields W
Epilepsia 2009 Nov;50(11):2397-407. Epub 2009 Jul 14 doi: 10.1111/j.1528-1167.2009.02199.x. PMID: 19624713

Recent systematic reviews

Fallah A, Guyatt GH, Snead OC 3rd, Ebrahim S, Ibrahim GM, Mansouri A, Reddy D, Walter SD, Kulkarni AV, Bhandari M, Banfield L, Bhatnagar N, Liang S, Teutonico F, Liao J, Rutka JT
PLoS One 2013;8(2):e53565. Epub 2013 Feb 6 doi: 10.1371/journal.pone.0053565. PMID: 23405072Free PMC Article
Banach R, Boskovic R, Einarson T, Koren G
Drug Saf 2010 Jan 1;33(1):73-9. doi: 10.2165/11317640-000000000-00000. PMID: 20000869

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