Perineal surface electromyography does not typically demonstrate expected relaxation during normal voiding.
Perineal surface electromyography does not typically demonstrate expected relaxation during normal voiding.
复制标题
会阴表面肌电图通常不会在正常空隙过程中表现出预期的松弛。
DOI：
10.1002/nau.21080
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发表时间：
2011-11
影响因子：
2
通讯作者：
Urinary Incontinence Treatment Network
中科院分区：
文献类型：
--
作者：
Kirby AC;Nager CW;Litman HJ;Fitzgerald MP;Kraus S;Norton P;Sirls L;Rickey L;Wilson T;Dandreo KJ;Shepherd J;Zimmern P;Urinary Incontinence Treatment Network
目的：描述尿动力学（UDS）期间会阴表面贴片肌电图（EMG）的活动，比较充盈期和排尿期的活动，并评估术前EMG活动与术后排尿症状之间的关系。655名妇女在接受压力性尿失禁手术前接受了标准化的术前UDS，包括会阴表面肌电图。压力-流动研究评估腹部紧张和流动中断。在预定的10个时间点提取定量肌电图，比较填充和空白。定性肌电活动评估了充脑和空脑期间肌电活动的时间百分比，以及充脑和空脑期间肌电的平均振幅。术后排尿功能障碍定义为术后6周以上的手术翻修或导尿。采用双侧显著性水平为5%的Fisher精确检验来评估肌电图活动和术后排尿功能障碍的差异。321个UDS有可解释的肌电图研究，其中131个（41%）在所有10个预定和注释的时间点有肌电图值。流动时的定量和定性肌电信号通常大于充填时。术后排尿功能障碍的发生率在术前排尿时肌电图活动较高的受试者中没有显著差异。42名受试者的结果相似，他们在排空期间既没有腹部紧张，也没有流动中断。会阴表面贴片肌电图未测量排尿过程中预期的盆底和尿道括约肌松弛。术前肌电图不能预测患者术后排尿功能障碍的风险。
To describe perineal surface patch electromyography (EMG) activity during urodynamics (UDS) and compare activity between filling and voiding phases and to assess for a relationship between preoperative EMG activity and postoperative voiding symptoms. 655 women underwent standardized preoperative UDS that included perineal surface EMG prior to undergoing surgery for stress urinary incontinence. Pressure-flow studies were evaluated for abdominal straining and interrupted flow. Quantitative EMG values were extracted from 10 predetermined time-points and compared between fill and void. Qualitative EMG activity was assessed for the percent of time EMG was active during fill and void and for the average amplitude of EMG during fill compared to void. Postoperative voiding dysfunction was defined as surgical revision or catheterization more than 6 weeks after surgery. Fisher’s exact test with a 5% two-sided significance level was used to assess differences in EMG activity and postoperative voiding dysfunction. 321 UDS had interpretable EMG studies, of which 131 (41%) had EMG values at all 10 predetermined and annotated time-points. Quantitative and qualitative EMG signals during flow were usually greater than during fill. The prevalence of postoperative voiding dysfunction in subjects with higher preoperative EMG activity during void was not significantly different. Results were similar in the 42 subjects who had neither abdominal straining during void nor interrupted flow. Perineal surface patch EMG did not measure expected pelvic floor and urethral sphincter relaxation during voiding. Preoperative EMG did not predict patients at risk for postoperative voiding dysfunction.