Investigation of pelvic floor muscle injury and rehabilitation in vaginal delivery

Abstract

Objective To investigate the influence factors of female pelvic floor muscle injury in vaginal delivery and the curative effect of early pelvic floor muscle rehabilitation. Methods From October 2016 to August 2017, 324 cases of vaginal delivery women of postpartum routine review after 6 weeks postpartum were selected as the subjects. And the 324 cases were divided into pelvic floor muscle injury group and normal pelvic floor muscle group according to the pelvic floor muscle injury or not. The clinical features of the two groups were compared and the factors affecting the damage of pelvic floor muscle strength were understood. Meanwhile, the pelvic floor muscle injury group was treated with pelvic floor muscle early rehabilitation, and the pelvic floor muscle tension was compared before and 3 months after treatment. Results Pelvic floor muscle injury occurred in 283 cases of parturients, the incidence was 87.3%. There were no significant differences in age, BMI, gestational weeks, delivery mode, side cut, the first stage labor time between the two group, and there were significant differences in the delivery time, the second stage labor time, neonatal body weight between the two groups. Multivariate Logistic regression analysis showed that the delivery time, the second stage labor time and neonatal body weight were the risk factors causing maternal pelvic floor muscle injury. Compared with those before treatment, the electromyographic value and fatigue degree of the class Ⅰ and Ⅱ muscle fibers 3 months after treatment increased significantly, and the difference was significant (P<0.05). Conclusions Vaginal delivery can lead to pelvic muscle injury, among them, delivery times, the second stage labor time, neonatal body mass are the risk factors for pelvic floor muscle injury, the early rehabilitation therapy of pelvic floor muscle can effectively improve the muscle strength of pelvic floor muscle and promote the function recovery of pelvic floor muscle. Key words: Vaginal delivery; Pelvic floor muscle strength; Influencing factors; Rehabilitation training; Curative effect