Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, CA 94143, USA.
Clin Perinatol. 2011 Jun;38(2):297-309. doi: 10.1016/j.clp.2011.03.012.
Nearly 1 in 3 pregnant women in the United States undergo cesarean. This trend is contrary to the national goal of decreasing cesarean delivery in low-risk women. The decline in vaginal birth after cesarean (VBAC) contributes to the continual increase in cesarean deliveries. Prior cesarean delivery is the most common indication for cesarean and accounts for more than one-third of all cesareans. The appropriate use and safety of cesarean and VBAC are of concern not only at the individual patient and clinician level but they also have far-reaching public health and policy implications at the national level.
近三分之一的美国孕妇行剖宫产。这一趋势与降低低危孕妇剖宫产率的国家目标背道而驰。剖宫产后阴道分娩（VBAC）的下降导致剖宫产率持续上升。既往剖宫产是行剖宫产术最常见的指征，占所有剖宫产术的三分之一以上。剖宫产术和 VBAC 的合理使用和安全性不仅在个体患者和临床医生层面受到关注，而且在国家层面也具有深远的公共卫生和政策影响。
