Abstract：Objective To explore the effect of lateral episiotomy on postpartum pelvic floor function of vaginal delivery.Methods The clinical data of 86 full-term pregnant women who underwent vaginal delivery in Chunliu District of Dalian Women and Children Medical Center(Group)from February 2019 to February 2021 were retrospectively analyzed.According to the midwifery technology,they were divided into lateral episiotomy group and non lateral episiotomy group,43 cases in each group.The patients in the lateral episiotomy group underwent lateral episiotomy during vaginal natural delivery,and the patients in the non lateral episiotomy group did not undergo lateral episiotomy during vaginal natural delivery.The stress urinary incontinence(SUI),perineal pain,pelvic floor muscle electromyography,pelvic organ prolapse(POP),POP stage and pelvic floor muscle strength were compared between the two groups.Results The incidence of SUI at 42 d after delivery in the lateral episiotomy group was higher than that in the non lateral episiotomy group,the visual analogue scale (VAS)score at 42 d after delivery was higher than that in the non lateral episiotomy group,and the pelvic floor muscle electromyography at 42 d after delivery was lower than that in the non lateral episiotomy group,the differences were statistically significant(P<0.05).There were no significant differences between the two groups in the incidence of POP,POP stage,shallow class Ⅰ and class Ⅱ muscle fiber strength,deep class Ⅰ and class Ⅱ muscle fiber strength at 42 d after delivery (P>0.05).Conclusion The use of lateral episiotomy in vaginal delivery can increase the incidence of SUI and perineal pain,and aggravate the damage to pelvic floor muscle function.Therefore,it is necessary to limit the use of lateral episiotomy and strictly grasp the indications of lateral episiotomy.
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