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Abstract To investigate the effect of bilateral perineal nerve block anesthesia on maternal perineal injury and pain, and maternal and fetal outcomes. Methods: 60 women who underwent bilateral perineal nerve block anesthesia during vaginal delivery were recruited in study group, and 60 women without anesthesia during vaginal delivery were selected in control group at the same time. The labor time, perineal cut rate, postpartum perineal injury degree, the visual analogue scale (VAS), the rate of postpartum urinary retention, the haemorrhage amount within 2 hours after delivery of women, and the incidence of neonatal asphyxia, and the neonatal Apgar score after birth were compared between the two groups. Results: The first stage of labor time, the second stage of labor time, and the total labor time, episiotomy rate, and the haemorrhage amount within 2 hours after delivery of women in the study group were 9.56±1.46 h, 1.03±0.27 h, 10.72±1.42 h, 21.7%, and 139.91 ±81.21 ml, respectively, which were significant lower than those of women in the control group (P<0.05). The postpartum perineal damage degree of women in the study group was significnat less than that of women in the control group, but the VAS scores during the first, second and third stage of labor, and at postpartum 2 h of women in the study group were significant lower than those of women in the control group (P<0.05). There were no significant difference in the rates of urinary retention and neonatal asphyxia, and Apgar score between the two groups (P>0.05). Conclusion: Bilateral perineal nerve block anesthesia can reduce maternal pain, shorten maternal labor time, and protect the perineal injury without adverse impact on maternal and infant outcomes.
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