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https://hdl.handle.net/2440/88514
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Type: | Journal article |
Title: | Induction of labour versus expectant monitoring for gestational hypertension or mild pre-eclampsia after 36 weeks' gestation (HYPITAT): a multicentre, open-label randomised controlled trial |
Author: | Koopmans, C. Bijlenga, D. Groen, H. Vijgen, S. Aarnoudse, J. Bekedam, D. van den Berg, P. de Boer, K. Burggraaff, J. Bloemenkamp, K. Drogtrop, A. Franx, A. de Groot, C. Huisjes, A. Kwee, A. van Loon, A. Lub, A. Papatsonis, D. van der Post, J. Roumen, F. et al. |
Citation: | The Lancet, 2009; 374(9694):979-988 |
Publisher: | Elsevier |
Issue Date: | 2009 |
ISSN: | 0140-6736 1474-547X |
Statement of Responsibility: | Corine M Koopmans ... Ben WJ Mol ... et al. for the HYPITAT study group |
Abstract: | BACKGROUND: Robust evidence to direct management of pregnant women with mild hypertensive disease at term is scarce. We investigated whether induction of labour in women with a singleton pregnancy complicated by gestational hypertension or mild pre-eclampsia reduces severe maternal morbidity. METHODS: We undertook a multicentre, parallel, open-label randomised controlled trial in six academic and 32 non-academic hospitals in the Netherlands between October, 2005, and March, 2008. We enrolled patients with a singleton pregnancy at 36-41 weeks' gestation, and who had gestational hypertension or mild pre-eclampsia. Participants were randomly allocated in a 1:1 ratio by block randomisation with a web-based application system to receive either induction of labour or expectant monitoring. Masking of intervention allocation was not possible. The primary outcome was a composite measure of poor maternal outcome--maternal mortality, maternal morbidity (eclampsia, HELLP syndrome, pulmonary oedema, thromboembolic disease, and placental abruption), progression to severe hypertension or proteinuria, and major post-partum haemorrhage (>1000 mL blood loss). Analysis was by intention to treat and treatment effect is presented as relative risk. This study is registered, number ISRCTN08132825. FINDINGS: 756 patients were allocated to receive induction of labour (n=377 patients) or expectant monitoring (n=379). 397 patients refused randomisation but authorised use of their medical records. Of women who were randomised, 117 (31%) allocated to induction of labour developed poor maternal outcome compared with 166 (44%) allocated to expectant monitoring (relative risk 0.71, 95% CI 0.59-0.86, p<0.0001). No cases of maternal or neonatal death or eclampsia were recorded. INTERPRETATION: Induction of labour is associated with improved maternal outcome and should be advised for women with mild hypertensive disease beyond 37 weeks' gestation. |
Keywords: | HYPITAT study group Humans Pulmonary Edema Hypertension, Pregnancy-Induced Eclampsia HELLP Syndrome Pre-Eclampsia Abruptio Placentae Postpartum Hemorrhage Thromboembolism Fetal Monitoring Pregnancy Outcome Labor, Induced Severity of Illness Index Maternal Mortality Logistic Models Statistics, Nonparametric Gestational Age Pregnancy Patient Selection Adult Netherlands Female |
Rights: | Copyright © 2009 Elsevier Ltd. All rights reserved. |
DOI: | 10.1016/S0140-6736(09)60736-4 |
Published version: | http://dx.doi.org/10.1016/s0140-6736(09)60736-4 |
Appears in Collections: | Aurora harvest 2 Paediatrics publications |
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