产科因素对产后盆底功能影响的初步分析

Preliminary analysis of the influence of obstetric factors on postpartum pelvic floor muscle function

目的探讨产后阴道最大压力和盆底肌电值与产科因素的关系。方法选取2018年2月至2018年12月在北京积水潭医院经阴道分娩且产后12周盆底肌力为零的产妇341例,采用多重线性回归分析阴道最大压力和盆底肌电值与产科因素的关系。结果 341例产妇阴道最大压力中位数为11.06 cm H2O(6.26 cmH2O,17.42 cm H2O),盆底肌电值中位数为6.00 mV(3.76 mV,9.40 mV)。多因素分析结果显示,分娩方式(P阴道最大压力=0.025;P盆底肌电值=0.026)和新生儿体质量(P阴道最大压力=0.003;P盆底肌电值=0.002)与阴道最大压力和盆底肌电值的相关性有统计学意义(P <0.05)。结论新生儿体质量和会阴切开术可能会影响产妇盆底肌功能。

Objective The present study aims to measure maximum vaginal pressure and pelvic floor electromyography, and analyze their association with obstetric factors. Methods A total of 341 cases who experienced vaginal delivery in Beijing Jishuitan Hospital from February 2018 to December 2018 and whose pelvic floor muscle strength was zero at 12 weeks after delivery were selected. Multiple linear regression was used to analyze the association of maximum vaginal pressure and pelvic floor electromyography with obstetric factors respectively. Result The median maximum vaginal pressure and pelvic floor electromyography were 11.06(6.26,17.42) cm H2 O and 6.00(3.76,9.40) mV respectively. The results of multivariate analysis showed that the delivery mode(Pmaximum vaginal pressure = 0.025;Ppelvic floor electromyography = 0.026), neonatal body weight(Pmaximum vaginal pressure = 0.003;Ppelvic floor electromyography = 0.002) were statistically significant with vaginal maximum pressure, and pelvic floor electromyography(P < 0.05). Conclusions Neonatal bodyweight and episiotomy may affect maternal pelvic floor muscle function.