Improvement of pelvic floor muscle elasticity in primipara with cystocele treated by biofeedback electrical stimulation
Objective To evaluate the effect of biofeedback electrical stimulation on pelvic floor muscle elasticity and pelvic floor anatomical function by shear wave elastography(SWE)and transperineal four-dimensional pelvic floor ultrasound in primiparas with cystocele.Methods Sixty-six primiparas with full-term normal delivery,singleton pregnancy and cystocele who were included in the 40～45 days after delivery were randomly divided into two groups.Thirty-two primiparas who regularly received biofeedback electrical stimulation were in the treatment group,and 34 primiparas who did not receive biofeedback electrical stimulation in the same period were in the control group.The elastic modulus of the puborectal muscle at rest of the two groups were measured by SWE,and the size of the levator ani muscle hiatus at rest,on maximum constriction and Valsalva were measured,and the differences were compared.Results First examination before treatment:① SWE results:there was no significant difference in the elastic modulus of bilateral puborectal muscles between the treatment group and the control group(P＞0.05).② The area of levator ani hiatus by four-dimensional ultrasound:in the treatment group and the control group,the area of levator ani hiatus on maximum constriction was smaller than at rest,and the area was the largest on maximum Valsalva(P＜0.05).There was no significant difference in the area of levator ani hiatus between the treatment group and the control group(P＞0.05).Second examination after treatment:①SWE results:after 3 months of regular treatment with biofeedback electrical stimulation,the elastic modulus increased compared with that before treatment,and was the largest in the two groups(P＜0.05).There was no significant difference in the elastic modulus between the control group and the first examination(P＞0.05).② The area of levator ani hiatus by four-dimensional ultrasound:the area of levator ani hiatus in the treatment group was smaller than that before treatment in the three states,and the values were the smallest in the two groups before and after the two examinations(P＜0.05).In the control group,there was no significant difference in the area of levator ani hiatus compared with that before treatment(P＞0.05).Conclusion SWE combined with four-dimensional ultrasound dynamic examination of the pelvic floor showed that after regular biofeedback electrical stimulation,the elasticity of puborectal muscle increase,the area of levator ani hiatus decreased,and the diastolic function of pelvic floor muscle improved.
Electric stimulation therapyCystoceleBiofeedbackPrimipara
万方数据
维普
