动态脑电图在癫癇诊断中的价值

摘要

Objective To explore the clinical value of diagnos is value of the dynamic EEG monitoring (AEEG) (24-hour EEG monitoring) in epilepsy diagnosis. Methods 252 cases of clinically diagnosed as epilepsy were received AEEG monitoring, interictal awake and sleep EEG epileptiform discharge detection rates were compared. Results Of 252 cases epileptiform discharges were detected in 191 cases. appear separately in the awake period in 17 cases,sleep alone in 80 cases,both awake and sleep there were 94 cases, 111 cases were found in a sober period(accounting for 58. 1%) ,sleep period was found in 174 cases(91.1%) ,the difference was statistically significant(P ＜0. 01). Epileptiform discharges were seen mainly in NREM sleep Ⅰ -Phase Ⅱ. Conclusion Epileptiform discharges during sleep was significantly higher than those detected in the awakening period, AEEG contribute to the diagnosis of epilepsy,seizures can not be excluded on clinical and conventional EEG in patients without positive findings,can be AEEG monitoring.%目的 探讨动态脑电图监测(AEEG)即24 h脑电图监测在癫癇诊断中的应用价值.方法 对252例临床诊断为癫癇的患者行AEEG监测,对发作间期清醒与睡眠脑电图癇样放电的检出率进行比较.结果 252例患者中,共检出癇样放电191例,单独出现在清醒期者17例,单独出现在睡眠期者80例,清醒及睡眠均出现者94例,清醒期共出现111例(占58.1%),睡眠期共出现174例(占91.1%),两者比较差异有统计学意义(P＜0.01).癇样放电主要出现于NREM睡眠Ⅰ-Ⅱ期.结论 睡眠期癇样放电检出率明显高于觉醒期,AEEG有助于癫癇的诊断,这点,对临床不能排除癫癇发作而常规脑电图无阳性发现的患者更有价值.