Objective: The objective of this study was to compare outcomes of induced labour with intravenous oxytocin with a start in the evening versus in the morning. Design: Randomised controlled trial. Setting: Labour wards of three hospitals in Amsterdam, the Netherlands. Participants: Women with an indication for induction of labour with intravenous oxytocin. Methods: Included women were randomized to either the evening group with a start of induction of labour at 21:00 hours, or the morning group with a start at 07:00 hours. Main outcome measures: Primary outcome was duration of labour. Secondary outcomes were instrumental delivery rate, adverse neonatal outcome defined as an Apgar score below 7 after 5 minutes, number and indications of paediatric consults and neonatal admissions, duration of second stage, number of intrapartum infections and necessity of pain relief. Results: We randomised 371 women. Mean duration of labour was not significantly different (primiparae: morning 12 hours and 8 minutes versus evening 11 hours and 22 minutes, P value 0.29; multiparae: morning 7 hours and 34 minutes versus evening 7 hours and 46 minutes, P value 0.70). There were no significant differences in instrumental deliveries rates, number of infections or patient satisfaction. Unexpectedly, neonatal outcome was better in women induced in the evening. Conclusion: Induction of labour with intravenous oxytocin in the evening is equally effective as induction in the morning. © 2009 The Authors.
CITATION STYLE
Bakker, J. J., De Vos, R., Pel, M., Wisman, C., Van Lith, J. M., Mol, B. W. J., & Van Der Post, J. A. (2009). Start of induction of labour with oxytocin in the morning or in the evening. A randomised controlled trial. BJOG: An International Journal of Obstetrics and Gynaecology, 116(4), 562–568. https://doi.org/10.1111/j.1471-0528.2008.02102.x
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