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Year : 2016  |  Volume : 53  |  Issue : 4  |  Page : 268-273

The subclinical epileptiform discharges among nonepileptic cerebral palsy patients

Department of Neurology, Ain Shams University, Cairo, Egypt

Correspondence Address:
Mohamed K Elewa
Department of Neurology, Ain Shams University Hospitals, 38 El-Abbasia, Cairo - 11566
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1110-1083.202379

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Background Subclinical epileptiform discharges (SEDs) are assumed to play a role in the development of cognitive dysfunction in cerebral palsy (CP) patients. Purpose The aim of this study was to estimate the prevalence of SEDs among nonepileptic CP patients and their cognitive correlates. Patients and methods Fifty-one nonepileptic CP patients were recruited. All patients were subjected to history taking, neurological examination, assessment using Gross Motor Function Classification System for CP, the Stanford–Binet scale (5th edition), encephalography, and MRI of the brain. They were divided into two groups: group 1, which included 19 CP patients without SEDs, and group 2, which included 32 CP patients with SEDs. A comparison between patients’ features studied in groups 1 and 2 was made using independent-samples t-test and the χ2-test. A correlation between SEDs and the studied features was made using Spearman’s rank correlation coefficient (ρ). Results The prevalence of SEDs among nonepileptic CP patients was 62.7%. The presence of MRI abnormality and moderate mental retardation showed a highly significant positive correlation with SEDs. Meanwhile, central nervous system malformation and severe mental retardation showed a significant positive correlation with SEDs. However, normal intelligence showed a highly significant negative correlation with SEDs. Kernicterus and dyskinetic CP showed a significant negative correlation with SEDs. Conclusion SEDs are a common finding among nonepileptic CP children. They are positively correlated to cognitive dysfunction. This finding supports the assumption that SEDs are therapeutic target in mentally subnormal children. Larger studies are needed to confirm our results and to evaluate the clinical benefit of treating SEDs.

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