Characterization of seizures and EEG findings in creatine transporter deficiency due to SLC6A8 mutation

被引：1

作者：

Abdennadher, Myriam ^{[1
]}

Inati, Sara K. ^{[2
]}

Rahhal, Samar ^{[3
]}

Khan, Omar ^{[4
]}

Bartolini, Luca ^{[5
]}

Thurm, Audrey ^{[6
]}

Theodore, William ^{[7
]}

Miller, Judith S. ^{[8
,9
]}

Porter, Forbes D. ^{[3
]}

Bianconi, Simona ^{[10
,11
]}

机构：

[1] Boston Univ, Chobanian & Avedisian Sch Med, Boston Med Ctr, Boston, MA USA

[2] NINDS, Neurophysiol Epilepsy Unit, NIH, Bethesda, MD USA

[3] Eunice Kennedy Shriver Natl Inst Child Hlth & Dev, Sect Mol Dysmorphol, NIH, Rockville, MD USA

[4] Vet Adm, Washington, DC USA

[5] Brown Univ, Hasbro Childrens Hosp, Providence, RI USA

[6] NIMH, Neurodev & Behav Phenotyping Serv, NIH, Bethesda, MD USA

[7] NINDS, Clin Epilepsy Sect, NIH, Bethesda, MD USA

[8] Univ Penn, Perelman Sch Med, Dept Psychiat, Philadelphia, PA USA

[9] Univ Penn, Perelman Sch Med, Dept Pediat, Philadelphia, PA USA

[10] Eunice Kennedy Shriver Natl Inst Child Hlth & Dev, NIH, Rockville, MD 20892 USA

[11] Kaiser Permanente Med Grp Southern Calif, Clin Genet, La Palma, CA USA

来源：

AMERICAN JOURNAL OF MEDICAL GENETICS PART A | 2024年 / 194卷 / 02期

关键词：

creatine; creatine transporter deficiency; EEG; epilepsy; seizure; SLC6A8; MENTAL-RETARDATION; KINASE ISOENZYMES; DEFECT; BRAIN; BOYS;

D O I：

10.1002/ajmg.a.63418

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Seizures occur in up to 59% of boys with creatine transporter deficiency (CTD). While seizure phenotypes have been previously described, electroencephalogram (EEG) findings have only been reported in several case reports. In this prospective observational study, we report seizure characteristics and EEG findings in combination with neurobehavioral and SLC6A8 pathogenic variants in twenty males with CTD. Eighteen study participants (SP) underwent video-EEG, and seven had follow-up EEG recordings. Seizures typically occurred by age of 2 years. Thirteen (65%) had non-febrile seizures, requiring anti-seizure medications in nine. Four had febrile seizures. Seizures were bilateral tonic-clonic in 7 SP and focal impaired awareness in 5 SP; often responding to 1 to 2 antiseizure medications. EEG showed slowing in 5 SP, beta activity in 6 SP, and focal/multifocal, and/or generalized epileptiform activity in 9 SP. Follow-up EEGs in 7 SP showed emergence of epileptiform activity in 1 SP, and increased activity in 2 SP. In conclusion, seizures were frequent in our cohort but tended to respond to antiseizure medications. Longitudinal follow up provided further insight into emergence of seizures and EEG abnormalities soliciting future studies with long term follow up. Biomarkers of epileptogenicity in CTD are needed to predict seizures in this population.

引用

页码：337 / 345

页数：9

共 33 条

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