Utility of the scalp-recorded ictal EEG in childhood epilepsy

被引:14
作者
Yoshinaga, H [1 ]
Hattori, J [1 ]
Ohta, H [1 ]
Asano, T [1 ]
Ogino, T [1 ]
Kobayashi, K [1 ]
Oka, E [1 ]
机构
[1] Okayama Univ, Sch Med, Dept Child Neurol, Okayama 7008558, Japan
关键词
epilepsy; ictal EEG; spasms; complex partial seizures;
D O I
10.1046/j.1528-1157.2001.37100.x
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Purpose: To evaluate the usefulness of the scalp-recorded ictal EEGs in diagnosing childhood epilepsy. Methods: We analyzed the ictal EEGs of 259 seizures in 183 patients who visited the department of child neurology, Okayama University Medical School. during the past 6 years. Results: We divided all seizures into the following four categories, according to the diagnostic usefulness of ictal EEGs in determining the seizure type: 1. (a) Ictal EEGs confirmed the diagnosis of the seizure type based on seizure symptoms (101 seizures): (b) Ictal EEGs aided in the classification of the seizure type based on the seizure symptoms (101 seizures): (c) Ictal EEGs corrected errors in the classification (37 seizures): and (d) Ictal EEGs revealed previously unreported/undocumented seizure type (20 seizures). 2. Of the 37 misdiagnosed seizures (group C), 11 were nonepileptic seizures misdiagnosed as epileptic seizures, eight were complex partial seizures (CPS) misdiagnosed as the other seizure types, and 10 were other seizure types misdiagnosed as CPSs. 3. Of the 20 previously unreported/undocumented seizures (group D), nine were myoclonic seizures, five were absence seizures, five were CPS, and one was tonic spasms. 4. Seventy-two patients had CPS. Among them, 11 patients showed no epileptic spikes in their interictal EEG recordings. Therefore, ictal recordings confirmed the diagnosis of epilepsy. Conclusions: Ictal EEG recording is a very useful diagnostic tool not only for determining seizure types, but also for uncovering the existence of the unsuspected seizure types. It supplies the physician with useful information for the classification and the treatment of epilepsy. In particular, ictal EEGs are useful in diagnosing patients with CPS.
引用
收藏
页码:772 / 777
页数:6
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