Department of Neurology - FCM - University of Campinas, Brazil.
Clin Neurophysiol. 2010 Oct;121(10):1740-3. doi: 10.1016/j.clinph.2010.03.050. Epub 2010 Jul 31.
The aim of this study was to analyze neurophysiologic aspects of rolandic discharges.
We reviewed 45 electroencephalograms of patients divided into two groups: those with benign childhood epilepsy with centrotemporal spikes (BCECTS) and symptomatic partial epilepsy (SPE), following ILAE criteria (1989). The EEG data analyzed were: horizontal dipole discharges, double spike phenomenon, the extension of epileptiform discharges and background activity.
There was a predominance of horizontal dipole between patients with BCECTS compared with patients with SPE; however, this difference was not statistically significant. There was also no statistically significant difference between the two groups when the double spike phenomenon and the extension of discharges beyond the rolandic area were considered. The slower background activity in the SPE group was the only variable with statistical significance.
This study revealed similarities between rolandic discharges of two different epilepsy groups. The only reliable parameter to differentiate the groups was the background activity.
Our findings suggest that most EEG rolandic features are not pathognomonic of BCECTS, as they are related to the area of the discharges and not to the epileptic syndrome itself.
本研究旨在分析 Rolandic 放电的神经生理方面。
我们回顾了 45 例根据 ILAE 标准（1989 年）分为良性儿童期癫痫伴中央颞区棘波（BCECTS）和症状性部分性癫痫（SPE）两组的患者的脑电图。分析的脑电图数据包括：水平偶极子放电、双棘波现象、癫痫样放电的延伸和背景活动。
与 SPE 患者相比，BCECTS 患者中存在更多的水平偶极子放电；然而，这种差异无统计学意义。当考虑双棘波现象和放电超出 Rolandic 区的延伸时，两组之间也没有统计学上的显著差异。仅 SPE 组的背景活动较慢是具有统计学意义的唯一变量。
本研究揭示了两种不同癫痫组 Rolandic 放电之间的相似性。唯一可靠的区分两组的参数是背景活动。
我们的发现表明，大多数 EEG Rolandic 特征并非 BCECTS 的特有表现，因为它们与放电区域有关，而与癫痫综合征本身无关。
