Livnat E J, Fejgin M, Scommegna A, Bieniarz J, Burd L
Obstet Gynecol. 1978 Nov;52(5):549-51.
The acid-base balances of 63 neonates delivered either spontaneously or by the vacuum extractor or low forceps were compared. The outcome was similar in neonates delivered by vacuum extractor or forceps. However, significant differences were noted in the pH and base deficit of infants born by instrumental versus spontaneous delivery. These differences were no longer present when groups with similar duration in the second stage of labor were compared. We conclude that the use of instruments for outlet vaginal delivery carries no additional risk for the fetus.
对63例经自然分娩、真空吸引器助产或低位产钳助产的新生儿的酸碱平衡情况进行了比较。经真空吸引器或产钳助产的新生儿结局相似。然而，经器械助产与自然分娩的婴儿在pH值和碱缺失方面存在显著差异。当对第二产程时长相似的组进行比较时，这些差异不再存在。我们得出结论，使用器械进行阴道出口分娩对胎儿没有额外风险。
