Deneux-Tharaux C, Macfarlane A, Winter C, Zhang W-H, Alexander S, Bouvier-Colle M-H
INSERM, UMR S149, IFR 69, UPMC, Epidemiological Research Unit on Perinatal Health and Women's health, Hopital Tenon, Paris, France.
BJOG. 2009 Jan;116(1):119-24. doi: 10.1111/j.1471-0528.2008.01996.x.
The length of the third stage of labour is a potential modifiable risk factor for postpartum haemorrhage at vaginal delivery, but there is no definitive evidence that early intervention to remove the placenta manually will prevent postpartum haemorrhage. We report a wide variation between countries in Europe in policies about the timing of manual removal of placenta. Two groups of countries with clearly divergent policies were identified. A randomised controlled trial is needed to provide definitive evidence on the risks and benefits of manual removal of placenta at different timings after vaginal delivery.
分娩第三产程的时长是阴道分娩后产后出血的一个潜在可改变风险因素，但尚无确凿证据表明早期人工剥离胎盘能预防产后出血。我们报告了欧洲各国在人工剥离胎盘时机政策上存在很大差异。已确定两组政策明显不同的国家。需要进行一项随机对照试验，以提供关于阴道分娩后不同时机人工剥离胎盘的风险和益处的确切证据。
