The summary from this paper in BMJ:
"What is already known on this topic The admission cardiotocogram is a short recording of the fetal heart rate immediately after admission to the labour ward.
Opinion varies about its value in identifying a potentially compromised fetus In low risk women, the incidence of intrapartum fetal compromise is low
What this study adds Compared with Doppler auscultation of the fetal heart, admission cardiotocography has no benefit on neonatal outcome in low risk women
Admission cardiotocography results in increased obstetric intervention, including operative delivery "