Comorbidity of DCD and SLI: significance of epileptiform activity during sleep

Aldo Scabar · Raffaella Devescovi · Laura Blason · L. Bravar · Marco Carrozzi

41 citations0/0 files storedChild Care Health and Development

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Children's Physical and Motor Development Epilepsy research and treatment Developmental and Educational Neuropsychology

Abstract

BACKGROUND: In children affected by specific language impairment (SLI), many authors have investigated a link between language and epileptiform discharges during sleep resembling the focal sharp waves typical of benign epilepsy with centro-temporal spikes (BECTS), the so-called rolandic spikes. On the other hand, the same electroencephalographic trait occurs in more than 50% of children affected by learning or behavioural disabilities without seizures, supporting the hypothesis of a common genetic disposition. The biological background of Developmental Coordination Disorder (DCD) is currently unknown, but a genetic liability may be assumed. The aims of our study were first to estimate the prevalence of sleep-related epileptiform discharges in children affected by DCD and second to investigate the occurrence of DCD in a population of children affected by BECTS. METHODS: We selected a group of eight children with severe DCD. In this group, the presence of epileptiform activity was investigated. We also searched for DCD among a group of 13 children affected by BECTS. RESULTS: We found rolandic spikes in more than 70% of the children with severe DCD and severe DCD in more than 30% of the children with BECTS. CONCLUSIONS: In children with severe DCD other disabilities are frequently associated. In these children, epileptiform activity during sleep is very frequently found and in our opinion, this represents a hallmark of 'Hereditary Impairment of Brain Maturation', a term only partially resembling 'Atypical Brain Development'.

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References

2007Movement Assessment Battery for Children-2 2002Developmental coordination disorder: Associated problems in attention, learning, and psychosocial adjustment 1998DCD may not be a discrete disorder 1995GENETIC BASIS OF SPECIFIC LANGUAGE IMPAIRMENT: EVIDENCE FROM A TWIN STUDY 2003Developmental coordination disorder: a review of research on subtypes and comorbidities 1998A dyspraxic deficit in specific language impairment and developmental coordination disorder? Evidence from hand and arm movements 2003Consequences of Comorbidity of Developmental Coordination Disorders and Learning Disabilities for Severity and Pattern of Perceptual—Motor Dysfunction 2005Developmental Motor Disorders: A Neuropsychological Perspective

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