Lewis B V, Seneviratne H R
Am J Obstet Gynecol. 1979 Jul 15;134(6):615-8. doi: 10.1016/0002-9378(79)90639-2.
In 579 singleton breech deliveries the total perinatal mortality rate was 10.4% and the corrected perinatal mortality rate was 0.67%. There were 452 babies delivered vaginally (78.1%) and 127 delivered by cesarean section (21.9%). The perinatal mortality rate was very high in the premature breech delivery and in the low-birth-weight infant. Cesarean section should be used to avoid a traumatic vaginal delivery and it should be used more liberally in the mature breech, but it is unlikely that cesarean section rates in excess of 50% will significantly reduce the perinatal mortality mortality rate. More information is required as to whether extending the indications for cesarean section in the low-birth-weight infant will further reduce the perinatal mortality rate.
在579例单胎臀位分娩中，围产期总死亡率为10.4%，校正围产期死亡率为0.67%。有452例经阴道分娩（78.1%），127例剖宫产（21.9%）。早产臀位分娩和低体重儿的围产期死亡率非常高。应采用剖宫产以避免创伤性阴道分娩，对于足月臀位应更广泛地使用剖宫产，但剖宫产率超过50%不太可能显著降低围产期死亡率。关于扩大低体重儿剖宫产指征是否会进一步降低围产期死亡率，还需要更多信息。
