ST analysis for intrapartum fetal monitoring

Key content ST analysis (STAN) involves a combination of fetal heart rate interpretation and analysis of the fetal electrocardiogram. STAN has been available for over 5 years in the UK and is used in some, but not all, maternity units. STAN aims to reduce the incidence of fetal acidaemia and hypoxia by identifying these earlier and with greater sensitivity than cardiotocography (CTG) alone. Learning objectives To be familiar with the background theory and evidence for the use of STAN. To learn the principles for interpretation of the STAN trace. To review practical tips for STAN application and use of STAN monitors. Ethical issues STAN interpretation is currently not part of the RCOG curriculum for obstetrics and gynaecology trainees. Trainees may rotate to a unit that uses STAN routinely and be expected to participate in its use with minimal training.