RESUMO
Objective:To investigate the application effects of unprotected perineum delivery technique for normal vaginal delivery in primiparas.Methods:A total of 260 primiparas who underwent natural childbirth in Tengzhou Central People's Hospital between January 2019 and September 2020 were included in this study. They were randomly assigned to undergo childbirth either with an unprotected perineum delivery technique (study group, n = 130) or the conventional delivery technique (control group, n = 130). Delivery-related indicators were compared between the two groups. Results:The rate of first-degree perineal tear in the study and control groups was 71.52% and 29.23%, respectively, the rate of second-degree perineal tear were 7.16% and 3.16%, respectively, and the episiotomy rate in the two groups were 21.32% and 67.51%, respectively. There were significant differences in rate of first-degree perineal tear, rate of second-degree perineal tear and episiotomy rate between the two groups ( χ2 = 7.19, 7.03, 8.35, all P < 0.05). The length of hospital stay in the study and control group was 3.27 ± 5.79 days and 5.18 ± 7.26 days, respectively. The numerical rating scale score of postpartum perineal pain in the two groups was 1.23 ± 2.51 points and 3.24 ± 2.79 points, respectively. The incidence of postpartum complications was 3.33% and 11.67%, respectively. There were significant differences in length of hospital stay, numerical rating scale score of postpartum perineal pain and incidence of postpartum complications between the two groups ( t = 2.23, 2.06, χ2 = 2.52, all P < 0.05). There were no significant differences in length of second stage of labor and Apgar score in new born infants between the study and control groups (all P > 0.05). Conclusion:Unprotected perineum delivery technique can greatly decrease episiotomy rate, alleviate perineal tear, reduce pain, reduce complications, shorten length of hospital stay, and improve quality of obstetric care.