Determination of pH or lactate in fetal scalp blood in management of intrapartum fetal distress: randomised controlled multicentre trial.

摘要: Objective To examine the effectiveness of pH analysis fetal scalp blood compared with lactate in identifying hypoxia labour to prevent acidaemia at birth. Design Randomised controlled multicentre trial. Setting Labour wards. Participants Women a singleton pregnancy, cephalic presentation, gestational age ≥34 weeks, and clinical indication for sampling. Interventions Standard (n=1496) or an electrochemical microvolume (5 μl) test strip device. The cut-off levels intervention were 4.8 mmol/l, respectively. Main outcome measure Metabolic (pH 12 mmol/l) Results occurred 3.2% group 3.6% (relative risk 0.91, 95% confidence interval 0.61 1.36). Conclusion There no significant differences rate birth after use samples determine during labour. Trial registration ISRCT No 1606064.