Free access to the latest research


Welcome to the Obstetrics Resource Centre, with free access to the latest research in the field. 
All content is independently selected by the Editors, Professor James O. Drife from Leeds, UK, and Professor Jim Thornton from Nottingham. The Obstetrics Resource Centre provides you with original articles, reviews, selected must-reads, lectures and a congress planner.


Selected EJOG Papers

  • Editor’s comment: Prof. James Drife: How risky is repetitive fetal scalp blood sampling?
    Fetal scalp blood sampling (FBS) is performed when concerns are raised by fetal heart rate monitoring. NICE guidance in the UK recommends a obtaining a consultant opinion if FBS is done more than twice. In this Swedish study of 2134 FBSs in 1070 labours, there were no differences in fetal outcome between labours with 1-2 and those with >3 FBSs, though the risk of caesarean section was doubled in the latter group. The authors emphasise that >50% of women with repetitive FBS will be delivered vaginally, and 1/3 of these spontaneously.  

    Neonatal outcome and delivery mode in labors with repetitive fetal scalp blood sampling

    Malin Holzmann, Stina Wretler, Sven Cnattingius, Lennart Nordström

    European Journal of Obstetrics & Gynecology and Reproductive Biology, pages 97 - 102

  • Editor’s comment: Prof. James Drife: Predicting de novo postpartum pre-eclampsia
    There have been surprisingly few studies of normal blood pressure (BP) during labour. In this French study, automated BP measurements were made on 1435 women who entered labour with no history of previous hypertensive disorder. Labour increased the mean systolic BP from 119 to 135 mmHg and the mean diastolic from 74 to 81 mmHg. Just under 1% of the women developed de novo early postpartum preeclampsia, which was mild in all cases, and was associated with a systolic BP >150 mmHg or a diastolic >91 mmHg. 

    Blood pressure changes during the first stage of labor and for the prediction of early postpartum preeclampsia: a prospective study

    Jonathan Cohen, Daniel Vaiman, Baha M. Sibai, Bassam Haddad

    European Journal of Obstetrics & Gynecology and Reproductive Biology, pages 103 - 107

  • Editor’s comment: Prof. James Drife: The significance of the isolated single umbilical artery
    Single umbilical artery (SUA) is found in 0.2-2.0% of all pregnancies. It is associated with fetal abnormalities and with growth restriction and perinatal mortality. This study from Vienna, having excluded chromosomal and structural abnormalities, compared 136 singleton pregnancies with SUA with 500 pregnancies with a normal 3-vessel cord. Fetuses with SUA had a lower birthweight and were delivered at an earlier gestational age. SUA was associated with an 11-fold increased risk of IUGR and a 5-fold increase in very preterm delivery.  

    Isolated single umbilical artery: evaluating the risk of adverse pregnancy outcome

    Mariella Mailath-Pokorny, Katharina Worda, Maximilian Schmid, Stephan Polterauer, Dieter Bettelheim

    European Journal of Obstetrics & Gynecology and Reproductive Biology, pages 80 - 83


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Obstetrics Resource Centre introduction


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The present and future of induction of labour

About the Editors

  • James O. Drife

    James Drife is Emeritus Professor of Obstetrics and Gynaecology at the University of Leeds, UK. He has written widely on...
  • Jim Thornton

    Jim Thornton is Professor of Obstetrics and Gynaecology, at Nottingham University, and deputy director of the Nottingham Clinical Trials Unit...