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双胎分娩第一胎儿娩出后,第二胎儿处于危险状态并不少见。考虑双胎中第二胎的分娩方式很必要。Olofsson等报道1973年至1982年间的803例双胎分娩中国产期死亡率是3.6%。其中,第一胎经阴道分娩,第二胎经剖宫产分娩的围产期死亡率低于0.33%。现介绍Olofsson等对双胎第二胎的分娩方式。一、分娩方式的选择如妊娠37周以上,第一胎为头位,无论第二胎胎位如何,均应等待经阴道分娩。如妊娠36周以上,若第一胎是臀位,则应行骨盆X线照像。以产科真结合径为115mm,出口前后径、坐骨结节间
It is not uncommon for the second fetus to be in a state of danger after the first fetus has been delivered. It is necessary to consider the mode of delivery of the second child in the twins. Olofsson et al. Reported that the maternity death rate in China during the period from 1973 to 1982 was 3.6% in 803 twin births. Among them, the first child by vaginal delivery, the second child delivered by cesarean section perinatal mortality was less than 0.33%. Now introduced Olofsson and other twins second child delivery method. First, the choice of mode of delivery Such as pregnancy more than 37 weeks, the first child for the first bit, regardless of the second fetal position, should be waiting for vaginal delivery. Such as pregnancy more than 36 weeks, if the first child is breech, pelvic X-ray should be performed. To obstetric true diameter of 115mm, before and after export diameter, ischial tuberosity