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The purpose of this Winthrop-University Hospital, NY study was to evaluate whether computerized analysis of fetal heart rate variation may improve fetal surveillance in post term pregnancy. The study concluded that a computerized numeric analysis of fetal heart rate variation may improve fetal surveillance in post term pregnancy.

2010 Ongoing study being conducted by NICHD - STAN Fetal Heart Monitor trial at clinicaltrials.gov - Research to test a new instrument, called a fetal STAN monitor, that may be used during labor to monitor the electrical activity of the baby's heart. This new instrument is designed to help the doctor determine how well the baby is doing during labor. It will be used along with the existing electronic fetal monitor used to measure the baby's heart rate and the mother's contractions during birth. The specific purpose of this research study is to see if this new instrument (fetal STAN monitor) will have an impact on newborn health.

Sweden study to compare the efficacy in detecting signs of fetal hypoxia in labour of intermittent (I-group) versus continuous (C-group) electronic fetal monitoring in women with low or moderate risk factors for fetal distress. Study concluded that Intermittent use of electronic fetal monitoring at regular intervals (with stethoscopic auscultation in between) appears to be as safe as continuous electronic fetal monitoring in low risk labours. prospective, randomised study."

FDA.gov - Device Approvals and Clearances - STAN S31 Fetal Heart Monitor. STAN® S31 Fetal Heart Monitor is new type of fetal monitor that uses the fetal electrocardiogram (ECG) obtained through a fetal scalp electrode during labor to help the doctor or midwife decide whether to allow the mother to continue to labor or to intervene and deliver the baby.

University of Weatern Ontario, Canada study to estimate to what extent computerized fetal heart rate (FHR) parameters are affected by labor and to estimate the relationship between FHR parameters and the degree of fetal metabolic acidosis in laboring patients at term. Study concluded that in term pregnant women with reassuring FHR tracing, labor causes an increase in both short- and long-term FHR variation, which was abolished in the presence of nonreassuring FHR tracing. Computer-derived FHR parameters studied during the last hour of labor were not correlated with the degree of metabolic acidosis as measured in the umbilical artery at birth.

Canadian study to examine the roles of clinical risk scoring, electronic fetal heart monitoring and fetal blood gas and acid-base assessement in the prediction of intrapartum fetal asphyxia in term pregnancies. The study concluded that although fetal heart rate patterns will not discriminate all asphyxial exposures, continuous fetal heart rate monitoring supplemented by fetal blood gas and acid-base assessment can be a useful fetal assessment paradigm for intrapartum fetal asphyxia

American Family Physician - Interpretation of the Electronic Fetal Heart Rate During Labor

WebMd - Electronic Fetal Heart Monitoring

NIH Medline Plus encyclopedia article: Fetal heart monitoring

University of California, UCSF Medical Center - Medical Tests - Fetal Heart Monitoring - Definition - Types - Information

Intrapartum Fetal Heart Rate Monitoring at perinatology.com