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目的:评估初产妇会阴切开与Ⅱ~Ⅲ度会阴裂伤的相关性。方法:回顾性分析2006~2013年解放军第174医院产科的临床资料,涉及23 340例足月、单胎头位、阴道分娩的初产妇。结果:在研究期间,会阴切开率从83.4%下降到30.4%,Ⅱ~Ⅲ度会阴裂伤率从2.2%降到1.2%。在会阴切开组与会阴未切开组中,Ⅱ~Ⅲ度会阴裂伤率有下降的趋势,合并OR=1.11,95%CI:0.88~1.34,差异无统计学意义。结论:随着限制性会阴切开的实行,Ⅱ~Ⅲ度会阴裂伤的发生率逐年下降。会阴切开并不能降低会阴Ⅱ~Ⅲ度裂伤的发生率。
Objective: To evaluate the correlation between primipara perineal incision and perineal laceration of Ⅱ ~ Ⅲ degree. Methods: The clinical data of Obstetrics of the 174th Hospital of People’s Liberation Army from 2006 to 2013 were analyzed retrospectively. A total of 23 340 primiparae of full-term, single head and vaginal delivery were involved. RESULTS: During the study period, the rate of episiotomy decreased from 83.4% to 30.4%, and the rate of episiotomy Ⅱ to Ⅲ degrees decreased from 2.2% to 1.2%. In the group of perineal incision and the group of unopened perineal incision, the rate of perineal laceration Ⅱ ~ Ⅲ had a trend of decreasing, with OR = 1.11, 95% CI 0.88 ~ 1.34, the difference was not statistically significant. Conclusion: With the implementation of restrictive perineal incision, the incidence of Ⅱ ~ Ⅲ degree perineal laceration declines year by year. Perineal incision does not reduce the incidence of perineal Ⅱ ~ Ⅲ degree laceration.