盆底失弛缓综合征患者盆底表面肌电的改变及临床意义

Clinical significance of pelvic floor surface electromyographic changes in patients with pelvic floor dyssynergia

目的:探讨盆底失弛缓患者盆底表面肌电的特征.方法:盆底失弛缓综合征患者73例,其中男31例,女42例,年龄18-40岁,平均28.04岁±5.83岁;正常志愿者80例,其中男31例,女49例,年龄21-40岁,平均27.20岁±4.28岁.采用Glazer盆底表面肌电评估方案采集2组表面肌电值,分析比较静息状态的肌电波幅、变异系数和不同收缩状态下的肌电波幅、变异系数、收缩反应时间及中值频率.结果:与正常人群相比,盆底失弛缓患者前基线阶段静息波幅明显升高(4.93±3.01vs3.80±1.97,P<0.05);快速收缩阶段最大收缩波幅低(59.15±28.14vs69.95±31.05,P<0.05);持续收缩阶段变异系数升高(0.38±0.13vs0.31±0.11,P<0.05);耐久收缩阶段变异系数也明显升高(0.35±0.14vs0.28±0.10,P<0.05);不同性别盆底失弛缓患者各指标间无差异.同时,持续及耐久收缩阶段的变异系数与患者年龄呈正相关(P<0.05).结论:初步获得了盆底失弛缓患者盆底表面肌电值的特征,有利于指导临床诊断和治疗.

AIM：To evaluate the clinical significance of changes in pelvic floor surface electromyographic parameters in patients with pelvic floor dyssynergia.were enrolled.Electromyographic parameters including amplitude,coefficient of variance（CV）,onset time and median frequency（MF）in resting and contraction states were acquired by using the Glazer＇s protocol for pelvic floor surface electromyography.RESULTS：Compared to the control group,the pelvic floor dyssynergia group had a higher amplitude during pre-baseline step（4.93±3.01 vs 3.80±1.97,P0.05）,CV during tonic step（0.38 ±0.13 vs 0.31±0.11,P0.05）,and CV during endurance step（0.35±0.14 vs 0.28±0.10,P0.05）,as well as a lower contraction amplitude during flick step（59.15±28.14 vs 69.95±31.05,P0.05）.A positive correlation was found between CV during tonic and endurance steps and age of patients（both P0.05）.CONCLUSION：Monitoring changes in pelvic floor surface electromyographic parameters may provide some clues to the diagnosis and treatment of pelvic floor dyssynergia.