动态脑电图与常规脑电图在成人癫痫检查中的诊断价值

Diagnostic Value of Ambulatory Electroencephalogram and Conventional Electroencephalogram in Adult Epilepsy Examination

目的比较动态脑电图与常规脑电图在成人癫痫检查中的诊断效果。方法选取2019年1月-2020年12月在我院经临床诊断或疑似为癫痫的208例患者作为研究对象,分别给予动态脑电图与常规脑电图检查,比较两种检查方式癫样放电、非特异性异常检出率及癫样放电不同部位、不同时间检出率;并以临床病理诊断结果为金标准,分析两种检查方式的评估效能。结果动态脑电图癫样放电及非特异性异常中各指标检出率高于常规脑电图,差异有统计学意义(P<0.05)。动态脑电图癫样放电各部位检出率与常规脑电图比较,差异无统计学意义(P>0.05)。动态脑电图清醒期、思睡期、睡眠Ⅰ~Ⅱ期癫样放电检出率与常规脑电图比较,差异有统计学意义(P<0.05),而两种检查方式睡眠Ⅲ~Ⅳ期检出率比较,差异无统计学意义(P>0.05)。以临床病理诊断结果为参照,动态脑电图检查的符合率、特异度、灵敏度、阳性预测值、阴性预测值高于常规脑电图,差异有统计学意义(P<0.05)。结论与常规脑电图相比,动态脑电图对成人癫痫的诊断符合率更高,可准确反应患者在不同时段的脑电波。

Objective To compare the diagnostic effect of ambulatory EEG and conventional EEG in the examination of adult epilepsy.Methods 208 patients who were clinically diagnosed or suspected of epilepsy in our hospital from January 2019 to December 2020 were selected as the research objects,and were given ambulatory EEG and conventional EEG examinations.To compare the detection rate of epileptic discharge,non-specific abnormality,and the detection rate of epileptic discharge at different locations and different times during the diagnosis of the two inspection methods,the clinical diagnosis results were used as the gold standard to analyze the evaluation performance of the two inspection methods.Results The detection rate of each index in epileptic discharge and non-specific abnormalities in dynamic electroencephalogram was higher than that of conventional electroencephalogram,the difference was statistically significant(P<0.05).There was no statistically significant difference in the detection rate of epileptic discharges in different parts of the ambulatory EEG and conventional EEG(P>0.05).Compared with conventional EEG,the detection rate of epileptic discharges in the awake,sleepy,and sleep phases I to II of ambulatory EEG was statistically significant(P<0.05).There was no significant difference in the detection rate of sleep stageⅢ-Ⅳbetween the two inspection methods(P>0.05).Based on clinical diagnosis results,the coincidence rate,specificity,sensitivity,positive predictive value,and negative predictive value of ambulatory EEG examination were higher than those of conventional EEG,the difference was statistically significant(P<0.05).Conclusion Compared with conventional electroencephalogram,ambulatory electroencephalogram has a higher coincidence rate for the diagnosis of adult epilepsy,and it can accurately reflect the brain waves of patients in different periods.