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April2012 Vol.49 Issue:        2        Table of Contents
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Electroencephalographic Abnormalities in Children with Developmental Speech-Language Disorders

Karam Selim1, Khaled A.M.El-Sharkawy1, Wael Mahmoud1, Soha Mekki2

Departments of Neurology1, Audiology Unit2; Zagazig University; Egypt


Background: Slow acquisition of language without regression is called developmental dysphasia. Earlier research has suggested a link between epileptiform activity in the electroencephalogram (EEG) and developmental speech-language disorder (DSLD). Objectives: To determine the possible relation between developmental speech-language disorders, epilepsy, epileptiform Electroencephalogram (EEG) discharges and intellectual deficits in children. Methods: This study was conducted in department of neurology Zagazig University Hospital, Health Insurance Hospital and El-Asher El-Khairy Hospital. 58 pediatric patients with developmental speech-language disorders and similar number of age and sex matched normal controls were studied. The age range for both groups was 2-8 years. Children with intelligence quotient less than 70, hearing impairment and radiological evidence of structural cerebral disease were excluded from the study. Sleep and a wake EEG was recorded. Results: Within the DSLD group of children, 12.07% had epilepsy. This is significantly different (p<0.001) from the control group in which none of the children had epilepsy. In DSLD group 13 patients (22.41%) had epileptiform discharges in their Electroencephalogram. However, in control group only one child (1.72%) had epileptiform discharges. The delayed language development patients had a significantly higher percentage of abnormal EEGs, (p<0.001) compared to the control group. Furthermore, out of the 51 DSLD patients, who had no seizure, 6 (11.76%), had epileptiform discharges in their EEG. Conclusion: It is concluded that the children with delayed language development are associated with higher prevalence of epileptiform EEG discharges, epilepsy and intellectual deficits compared to their control. [Egypt J Neurol Psychiat Neurosurg.  2012; 49(2): 165-170]


KEY WORDS: Electroencephalogram, Delayed Language Development, epilepsy and intellectual deficit


Correspondence to Karam Selim, Neurology Department, Zagazig University; Egypt. Tel.:+201224041851. Email:

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