Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Case Reports
. 2019 Oct 25;12(10):e231178.
doi: 10.1136/bcr-2019-231178.

Infantile refractory seizures due to de novo KCNT 1 mutation

Affiliations
Case Reports

Infantile refractory seizures due to de novo KCNT 1 mutation

Mahdi Alsaleem et al. BMJ Case Rep. .

Abstract

We describe a term female infant who presented with multiple seizures early in infancy. The clinical and electrical seizures were refractory to traditional antiepileptic medications. After extensive workup, seizure panel testing revealed KCNT1 gene mutation, which is associated with nocturnal frontal lobe epilepsy and epilepsy of infancy with migrating focal seizures. The infant's condition improved with the combination of traditional as well non-traditional antiepileptic therapy.

Keywords: epilepsy and seizures; neuro genetics; neurology (drugs and medicines).

PubMed Disclaimer

Conflict of interest statement

Competing interests: None declared.

Figures

Figure 1
Figure 1
(A) Neonatal bipolar montage revealing an ictal pattern of left more than the right hemisphere. The EEG seizure lasted 3 min on EEG. Neonatal bipolar montage revealing an ictal pattern of left more than the right hemisphere. The EEG seizure lasted 3 min on EEG. (B) MRI brain coronal section T2 image: normal MRI exam. C, cerebral cortex; CC, corpus callosum; CE, cerebellum; LV, lateral ventricle; M, medulla; P, parietal lobe; T, temporal lobe; TL, thalamus; TV, third ventricle; WM, white matter.
Figure 2
Figure 2
Pathophysiology of KCNT1 mutation in neonatal epileptic disorder, and speculative treatment approach. CBD, cannabidiol; GABA, gamma-aminobutyric acid.

References

    1. Lim CX, Ricos MG, Dibbens LM, et al. . KCNT1 mutations in seizure disorders: the phenotypic spectrum and functional effects. J Med Genet 2016;53:217–25. 10.1136/jmedgenet-2015-103508 - DOI - PubMed
    1. Flor-Hirsch H, Heyman E, Livneh A, et al. . Lacosamide for SCN2A-related intractable neonatal and infantile seizures. Epileptic Disord 2018;20:440–6. 10.1684/epd.2018.1001 - DOI - PubMed
    1. Volpe JJ. Neonatal Seizures : Volpe JJ, Neurology of the newborn. Philadelphia: WB Saunders, 2008: 203–44.
    1. Silverstein FS, Jensen FE. Neonatal seizures. Ann Neurol 2007;62:112–20. 10.1002/ana.21167 - DOI - PubMed
    1. Heron SE, Smith KR, Bahlo M, et al. . Missense mutations in the sodium-gated potassium channel gene KCNT1 cause severe autosomal dominant nocturnal frontal lobe epilepsy. Nat Genet 2012;44:1188–90. 10.1038/ng.2440 - DOI - PubMed

Publication types