Collea J V, Rabin S C, Weghorst G R, Quilligan E J
Am J Obstet Gynecol. 1978 May 15;131(2):186-95. doi: 10.1016/0002-9378(78)90663-4.
A prospective study of the management of term frank breech presentation is currently ongoing at LAC-USC Medical Center. To date, 57 patients have been randomized to an elective cesarean section group and 70 to a vaginal delivery group. Of the 70 patients selected for vaginal delivery, 35 had one or more inadequate pelvic measurements by x-ray pelvimetry and were scheduled for indicated cesarean section. Of the remaining 35 patients in this group, 30 delivered vaginally without perinatal death. Two of the infants, however sustained brachial plexus injuries. Of the 57 patients scheduled, 55 underwent elective cesarean section. There were no maternal deaths, but 20 (36.4%) patients experienced morbidity and 5(9.1 per cent) patients experienced intraoperative complications. Based on the data accumulated to date, it seems reasonable to allow vaginal delivery in carefully selected cases of term frank breech presentation.
洛杉矶县南加州大学医学中心目前正在进行一项关于足月臀先露处理的前瞻性研究。迄今为止，57例患者被随机分配至择期剖宫产组，70例被分配至阴道分娩组。在70例选择阴道分娩的患者中，35例经X线骨盆测量有一项或多项骨盆测量值不充分，因此安排行剖宫产。该组其余35例患者中，30例经阴道分娩且无围产期死亡。然而，有2例婴儿发生臂丛神经损伤。在计划进行剖宫产的57例患者中，55例行择期剖宫产。无孕产妇死亡，但20例（36.4%）患者出现并发症，5例（9.1%）患者出现术中并发症。根据迄今积累的数据，在精心挑选的足月臀先露病例中允许阴道分娩似乎是合理的。
