Fetal lactate levels align with the stage of labour

AimTo evaluate the association between lactate concentrations in fetal blood samples and different advanced labour stages.MethodsEighteen-month prospective population-based clinical study of 187 singleton pregnant women who were monitored by sampling (FBS) because non-reassuring intrapartum CTG results at Kuopio University Hospital, Finland. Peripheral concentration pH analysed stages umbilical arterial immediately after delivery.ResultsFBS (N = 350) obtained from 5.4 % all during period, 48 had spontaneous delivery, 27 vacuum-assisted vaginal 25 nonelective Caesarean delivery. FBS levels increased 4–11% with every 1–2 cm cervical dilation 18 early to fully dilated cervix. In 42 least two FBSs, significantly I stage up a Lactate values higher compared FBSs. Sensitivity highest for detection birth asphyxia considerably low varying 42.9–57.1%.ConclusionFBS related delivery attempt. Wide range complicates its use as predictor asphyxia.