Interictal epileptiform discharges in children with epilepsy.
- Author:
Yu-Han XIAO
1
;
Jian-Xiang LIAO
;
Juan HUANG
;
Jian-Ning MAI
Author Information
- Publication Type:Journal Article
- MeSH: Child; Child, Preschool; Electroencephalography; Epilepsy; physiopathology; Humans; Polysomnography; Sleep; physiology; Wakefulness; physiology
- From: Chinese Journal of Contemporary Pediatrics 2008;10(3):322-324
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study the features of interictal epileptiform discharges (IED) during sleep and wakefulness in children with epilepsy.
METHODSThe polysomnography, active EEG and video EEG were performed on 48 children with epilepsy during the whole night, and wakefulness of pre- and post-sleep. The epileptiform sharp/spike discharge indexes during sleep and wakefulness were recorded. The positive rate of IED in focal and generalized epilepsy was compared.
RESULTSOf the 48 patients, 25 showed IED, including 9 cases (36.0%) in the generalized seizure group and 16 cases (64.0%) in the focal seizure group (P<0.05). The epileptiform sharp/spike discharge indexes in the whole non-rapid eye movement (NREM) sleep stage (stages S1-S4: 21.13+/-19.96, 19.59+/-17.76, 22.85+/-18.99, and 20.37+/-16.63) were significantly higher than that in the wakefulness stage (8.20+/-6.21) (P<0.05). The discharge index in the S3 stage during NREM sleep was higher than that during the rapid eye movement (REM) sleep (22.85+/-18.99 vs 12.91+/-10.95; P<0.05).
CONCLUSIONSThe positive rate of IED in the focal seizure group was higher than that in the generalized seizure group. Sleep, especially NREM sleep, facilitates IED in children with epilepsy.
