Beckmann Lea, Barger Mary, Dorin Lena, Metzing Sabine, Hellmers Claudia
Witten/Herdecke University, Germany; University of Applied Sciences Osnabrück, Germany.
Birth. 2014 Dec;41(4):309-15. doi: 10.1111/birt.12130. Epub 2014 Sep 2.
To offer vaginal birth after cesarean (VBAC) in a hospital setting is recommended in international guidelines, but offering VBAC in out-of-hospital settings is considered controversial. This study describes neonatal and maternal outcomes in mothers who started labor in German out-of-hospital settings.
In a retrospective analysis of German out-of-hospital data from 2005 to 2011, included were 24,545 parae II with a singleton pregnancy in a cephalic presentation at term (1,927 with a prior cesarean and 22,618 with a prior vaginal birth).
The overall VBAC rate was 77.8 percent. The intrapartum transfer rate to hospital was 38.3 percent (prior cesarean) versus 4.6 percent (prior vaginal) (p < 0.05), and the 10-minute Apgar < 7 rate was 0.6 versus 0.2 percent (p < 0.05), and the nonemergency intrapartum transfer rate was 91.5 versus 85.0 percent (p < 0.05). Prolonged first stage of labor was the most common reason for intrapartum transfer in both groups. The leading reason for postpartum transfer was retained placenta.
There was a high rate of successful VBAC in this study. The high nonemergency transfer rate for women with VBAC might mean that midwives are more cautious when attending women with a prior cesarean in out-of-hospital settings. Further studies are necessary to evaluate which women are suitable for VBAC in out-of-hospital settings.
国际指南推荐在医院环境中提供剖宫产术后阴道分娩(VBAC),但在院外环境中提供VBAC存在争议。本研究描述了在德国院外环境中开始分娩的母亲的新生儿和产妇结局。
对2005年至2011年德国院外数据进行回顾性分析,纳入24,545例足月单胎头位妊娠的经产妇II(1,927例有剖宫产史,22,618例有阴道分娩史)。
总体VBAC率为77.8%。剖宫产史产妇的产时转院率为38.3%,阴道分娩史产妇为4.6%(p<0.05);10分钟阿氏评分<7分的比例分别为0.6%和0.2%(p<0.05);非紧急产时转院率分别为91.5%和85.0%(p<0.05)。两组中产时转院最常见的原因均为第一产程延长。产后转院的主要原因是胎盘残留。
本研究中VBAC成功率较高。VBAC产妇的非紧急转院率较高,这可能意味着助产士在院外环境中照顾有剖宫产史的产妇时更为谨慎。有必要进一步研究评估哪些产妇适合在院外环境中进行VBAC。