Abstract：
Evidence-based guidelines regarding vaginal birth after cesarean from 3 countries (United States, Canada, and United Kingdom) were reviewed. The similarities in the 3 national guidelines (trial of labor after 1 previous cesarean, informed consent, delivery facility and available resources, epidural analgesia, continuous fetal monitoring, and induction and augmentation of labor) are understandable. Differences in recommendations (uterine rupture risk, success rate, intrauterine pressure catheter, and mechanical cervical ripening) are not explained. The likelihood of recommendations being categorized as level A differed: United States, 27% (3/11); Canada, 32% (6/19); and United Kingdom, 0% (0/17). Only 6 publications were cited by all 3 guidelines.
摘要：
来自3个国家的关于剖宫产后阴道分娩的循证指南(美国，加拿大,和英国)进行了审查。3个国家指南的相似性（1次剖宫产后的分娩试验，知情同意,交付设施和可用资源，硬膜外镇痛，连续胎儿监护,以及诱导和增加劳动力)是可以理解的。建议的差异（子宫破裂风险，成功率,宫内压导管,和机械宫颈成熟）没有解释。建议被归类为A级的可能性不同：美国，27%（3/11）；加拿大，32%(6/19)；和英国，0%(0/17)。所有3个指南仅引用了6个出版物。
