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Infant wellbeing at 2 years of age in the growth restriction intervention Trial (GRIT) : multicentred randomised controlled trial
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The GRIT study group (Including: Wolke, Dieter). (2004) Infant wellbeing at 2 years of age in the growth restriction intervention Trial (GRIT) : multicentred randomised controlled trial. The Lancet, Volume 364 (Number 9433). pp. 513-520. doi:10.1016/S0140-6736(04)16809-8 ISSN 0140-6736.
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Official URL: http://dx.doi.org/10.1016/S0140-6736(04)16809-8
Abstract
Background
Although delivery is widely used for preterm babies failing to thrive in utero, the effect of altering delivery timing has never been assessed in a randomised controlled trial. We aimed to compare the effect of delivering early with delaying birth for as long as possible.
Methods
548 pregnant women were recruited by 69 hospitals in 13 European countries. Participants had fetal compromise between 24 and 36 weeks, an umbilical-artery doppler waveform recorded, and clinical uncertainty about whether immediate delivery was indicated. Before birth, 588 babies were randomly assigned to immediate delivery (n=296) or delayed delivery until the obstetrician was no longer uncertain (n=292). The main outcome was death or disability at or beyond 2 years of age. Disability was defined as a Griffiths developmental quotient of 70 or less or the presence of motor or perceptual severe disability. Analysis was by intention-to-treat. This trial has been assigned the International Standard Randomised Controlled Trial Number ISRCTN41358726.
Findings
Primary outcomes were available on 290 (98%) immediate and 283 (97%) deferred deliveries. Overall rate of death or severe disability at 2 years was 55 (19%) of 290 immediate births, and 44 (16%) of 283 delayed births. With adjustment for gestational age and umbilical-artery doppler category, the odds ratio (95% CrI) was 1·1 (0·7–1·8). Most of the observed difference was in disability in babies younger than 31 weeks of gestation at randomisation: 14 (13%) immediate versus five (5%) delayed deliveries. No important differences in the median Griffiths developmental quotient in survivors was seen.
Interpretation
The lack of difference in mortality suggests that obstetricians are delivering sick preterm babies at about the correct moment to minimise mortality. However, they could be delivering too early to minimise brain damage. These results do not lend support to the idea that obstetricians can deliver before terminal hypoxaemia to improve brain development.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Psychology | ||||
Journal or Publication Title: | The Lancet | ||||
Publisher: | Lancet Publishing Group | ||||
ISSN: | 0140-6736 | ||||
Official Date: | 2004 | ||||
Dates: |
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Volume: | Volume 364 | ||||
Number: | Number 9433 | ||||
Page Range: | pp. 513-520 | ||||
DOI: | 10.1016/S0140-6736(04)16809-8 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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