健康人肛门括约肌肌电图参考值及影响因素  

Reference ranges and impact factors of quantitative electromyography of external anal sphincter

作　　者：赵蕾[1] 崔丽英[1,3] 杜华[1] 李本红[1] 吴双[2] Zhao Lei Cui Liying Du Hua Li Benhong Wu Shuang(Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China)

机构地区：[1]中国医学科学院北京协和医院神经科,100730 天津市环湖医院神经科 [2]天津市环湖医院神经科 [3]中国医学科学院神经科学中心

出　　处：《中华神经科杂志》2016年第12期942-946,共5页Chinese Journal of Neurology

摘　　要：目的通过分析健康志愿者肛门括约肌肌电图，建立肛门括约肌肌电图参考值范围。方法于2013年4—6月在北京协和医院内以公开招募的形式招募62名健康志愿者，包括不同生育经历的女性37名及男性25名。使用同芯圆针电极采集双侧肛门外括约肌轻度收缩状态下的运动单位电位，分别计算每位受试者的各运动单位电位参数平均值（包括时限、波幅、面积、平均转折、平均相数）及卫星电位出现率，依据生理影响因素建立适用于不同受试者特征的肛门括约肌肌电图参考值范围。结果全组受试者肛门括约肌肌电图运动单位电位时限是（9.92±1.31） ms，卫星电位出现率为7％±5％；依据生理影响因素分别计算正常值范围（均值±1.96标准差）为：男性7.91～12.19 ms，女性无经阴道分娩经历者7.43～10.47 ms、有经阴道分娩经历者7.50～13.54 ms；卫星电位出现率上限（均值＋1.65标准差）在男性及无经阴道分娩经历女性为13％，在有经阴道分娩经历女性为20％。结论依据不同生理特征建立肛门括约肌肌电图参考值范围具有临床实际意义。有经阴道分娩经历女性肛门括约肌肌电图改变较为复杂，建议临床上结合其他检查方法综合考虑。Objective To establish a practical reference range on anal sphincter electromyography of healthy volunteers with different physiological characters.Methods A group of 62 healthy volunteers were recruited from April to June 2013 in Peking Union Medical College Hospital through public recruitment for the reference value study of anal sphincter electromyography , including 37 women with various childbirth experiences and 25 men.Motor unit potentials were obtained from bilateral external anal sphincter of each subject by standard concentric electromyography needle.For each subject , the mean values of each motor unit potential parameter （including duration, amplitude, area, mean number of turns, mean number of phases） and the satellite rate were calculated.The reference ranges of each parameter were statistically calculated for various subject characteristics.Results The mean duration of the motor unit potentials of all subjects was （9.92 ±1.31） ms and the mean satellite rate was 7%±5%.The reference ranges of durations （means ±1.96 s） were 7.91 -12.19 ms for men, 7.43 -10.47 ms for women without vaginal delivery experiences and 7.50-13.54 ms for women with vaginal delivery experiences.The upper limits of satellite rates （means＋1.65 s） were 13% for men and women without vaginal delivery experiences and 20% for women with vaginal delivery experiences.Conclusions A practical reference range on anal sphincter electromyography with discriminating physiological characters was established.The changes of anal sphincter electromyography in women with vaginal delivery experiences were complicated , which should be carefully interpreted.

关 键 词：肛门外括约肌 肌电图 参考值 

分 类 号：R741.044[医药卫生—神经病学与精神病学]