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Case report: A young man with non-rapid eye movement parasomnias in a KCNT1-related epilepsy family.

ABSTRACT: Differentiating between non-rapid eye movement (NREM) parasomnias and sleep-related hypermotor epilepsy (SHE) is challenging, as they exhibit similar episodes during sleep. A relatively high prevalence of NREM parasomnias has been detected in families with SHE. However, the common pathophysiologic mechanism is not completely clear. There have been no previous reports of KCNT1-related SHE combined with NREM parasomnias. In this report, we describe a 17 years-old male patient from a KCNT1 mutation family who exhibited complex abnormal behaviors during sleep, which have been confirmed as epileptic seizures combined with NREM parasomnias through video-electroencephalogram (vEEG) and video-polysomnography (vPSG). The present article provides a reasoning process to evaluate unusual nocturnal behaviors. Furthermore, our analysis suggests a new potential association between NREM parasomnias and KCNT1 mutations.

SUBMITTER: Sheng D

PROVIDER: S-EPMC10704451 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature

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Case report: A young man with non-rapid eye movement parasomnias in a KCNT1-related epilepsy family.

Sheng Dandan D Lv Yefan Y Li Xinru X Liu Jing J Liu Weiping W

Frontiers in neurology 20231124

Differentiating between non-rapid eye movement (NREM) parasomnias and sleep-related hypermotor epilepsy (SHE) is challenging, as they exhibit similar episodes during sleep. A relatively high prevalence of NREM parasomnias has been detected in families with SHE. However, the common pathophysiologic mechanism is not completely clear. There have been no previous reports of KCNT1-related SHE combined with NREM parasomnias. In this report, we describe a 17 years-old male patient from a KCNT ...[more]

PMID: 38073640

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Project description:Childhood onset epilepsy is associated with disrupted developmental integration of sensorimotor and cognitive functions that contribute to persistent neurobehavioural comorbidities. The role of epilepsy and its treatment on the development of functional integration of motor and cognitive domains is unclear. Oculomotor tasks can probe neurophysiological and neurocognitive mechanisms vulnerable to developmental disruptions by epilepsy-related factors. The study involved 26 patients and 48 typically developing children aged 8-18 years old who performed a prosaccade and an antisaccade task. Analyses compared medicated chronic epilepsy patients and unmedicated controlled epilepsy patients to healthy control children on saccade latency, accuracy and dynamics, errors and correction rate, and express saccades. Patients with medicated chronic epilepsy had impaired and more variable processing speed, reduced accuracy, increased peak velocity and a greater number of inhibitory errors, younger unmedicated patients also showed deficits in error monitoring. Deficits were related to reported behavioural problems in patients. Epilepsy factors were significant predictors of oculomotor functions. An earlier age at onset predicted reduced latency of prosaccades and increased express saccades, and the typical relationship between express saccades and inhibitory errors was absent in chronic patients, indicating a persistent reduction in tonic cortical inhibition and aberrant cortical connectivity. In contrast, onset in later childhood predicted altered antisaccade dynamics indicating disrupted neurotransmission in frontoparietal and oculomotor networks with greater demand on inhibitory control. The observed saccadic abnormalities are consistent with a dysmaturation of subcortical-cortical functional connectivity and aberrant neurotransmission. Eye movements could be used to monitor the impact of epilepsy on neurocognitive development and help assess the risk for poor neurobehavioural outcomes.

Dataset Information

Case report: A young man with non-rapid eye movement parasomnias in a KCNT1-related epilepsy family.

Publications

Case report: A young man with non-rapid eye movement parasomnias in a <i>KCNT1</i>-related epilepsy family.

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