正常儿童思睡期脑电图高度同步化波型  

Study of hypnagogic EEG hypersynchronous patterns in normal children

作　　者：刘向[1] 喻廉[1] 马仁飞[1] 

机构地区：[1]安徽省立医院神经电生理室,安徽合肥230001

出　　处：《癫痫与神经电生理学杂志》2011年第2期104-107,共4页Journal of Epileptology and Electroneurophysiology(China)

摘　　要：目的：研究正常儿童思睡期高度问步化脑电波型（HHP）的特征和变化特点。方法：描记177例正常儿童自然睡眠脑电图，对思睡期出现的高度同步化脑电波型进行分析，研究不同年龄组HHP的变化和特点。结果：177例中，109例出现HHP，出现率为61．6％，其中≤3岁出现率最高。HHP的频率范围以4～5Hz常见，占43．1％，少数婴幼儿的HHP可出现2～3Hz8波频率。波幅以100～200μV者常见，占61．5％，〉200gV者仅占9．2％。持续时间≤3s者占65．1％，最长可达10s。优势部位在前头部导联的占48．6％．≤3岁者变化较大。双侧对称同步的占70．6％，将近三分之一被试者的HHP双侧不对称。结论：HHP是正常儿童思睡期特征性脑电波型，应熟悉其特征和各种正常变异波形，避免误判为痫样放电。Objective： To investigate the wave features of hypnagogic hypersynchronous patterns （HHP）of EEG in normal children. Methods： The EEG of 177 normal children was recorded, the wave features of HHP in drowsiness state and the characteristics of different age groups was analyzed. Results： HHPs were found in 109 cases, and the rate of total occurrence was 61.6%. The age group of chidren of 3 or below 3 years old was of the most frenquent occurrence than other age groups. The frequency range of HHP was 4-5 Hz in 43.1% cases, which could be 2-3 Hz 3 waves in only the minority of infants. The most common amplitudes were 100--200 μV in 61.5%, only 9.2% greater than 200 μV. There were 65.1% cases of the duration shorter than 3 seconds, and the longest duration was 10 seconds. The cases with dominant position located on the anterior part of head took up 48.6%, and there was a greater disparity in the age group of 3 or below 3 years old. 70.6% cases were bilateral symmetric, compared with about one third of cases of asymmetry. Conclusions： HHP is a significant feature of normal children in the of drowsiness state, which should be mastered to avoid the pitfalls of interpretation as epileptic discharges.

关 键 词：正常儿童 睡眠脑电图 思睡期 思睡期高度同步化脑电波型(HHP) 

分 类 号：R338.63[医药卫生—人体生理学] R741.044[医药卫生—基础医学]