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Immediate versus deferred delivery of the preterm baby with suspected fetal compromise for improving outcomes.

Abstract：

BACKGROUND:Immediate delivery of the preterm fetus with suspected compromise may decrease the risk of damage due to intrauterine hypoxia. However, it may also increase the risks of prematurity. OBJECTIVES:To assess the effects of immediate versus deferred delivery of preterm babies with suspected fetal compromise on neonatal, maternal and long-term outcomes. SEARCH METHODS:We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (27 February 2012). SELECTION CRITERIA:Randomised trials comparing a policy of immediate delivery with deferred delivery or expectant management in preterm fetuses with suspected in utero compromise. Quasi-randomised trials and trials employing a cluster-randomised design were eligible for inclusion but none were identified. DATA COLLECTION AND ANALYSIS:Two review authors independently evaluated trials for inclusion into the review. Two review authors assessed trial quality and extracted data. Data were checked for accuracy. MAIN RESULTS:We included one trial of 548 women (588 babies) in the review. There was no difference in the primary outcomes of extended perinatal mortality (risk ratio (RR) 1.17, 95% confidence interval (CI) 0.67 to 2.04) or the composite outcome of death or disability at or after two years (RR 1.22, 95% CI 0.85 to 1.75) with immediate delivery compared to deferred delivery. More babies in the immediate delivery group were ventilated for more than 24 hours (RR 1.54, 95% CI 1.20 to 1.97). There were no differences between the immediate delivery and deferred delivery groups in any other individual neonatal morbidity or markers of neonatal morbidity (cord pH less than 7.00, Apgar less than seven at five minutes, convulsions, interventricular haemorrhage or germinal matrix haemorrhage, necrotising enterocolitis and periventricular leucomalacia or ventriculomegaly).More children in the immediate delivery group had cerebral palsy at or after two years of age (RR 5.88, 95% CI 1.33 to 26.02). There were, however, no differences in neurodevelopment impairment at or after two years (RR 1.72, 95% CI 0.86 to 3.41) or death or disability in childhood (six to 13 years of age) (RR 0.82, 95% CI 0.48 to 1.40). More women in the immediate delivery group had caesarean delivery than in the deferred delivery group (RR 1.15, 95% CI 1.07 to 1.24). Data were not available on any other maternal outcomes. AUTHORS' CONCLUSIONS:Currently there is insufficient evidence on the benefits and harms of immediate delivery compared with deferred delivery in cases of suspected fetal compromise at preterm gestations to make firm recommendations to guide clinical practice. Where there is uncertainty whether or not to deliver a preterm fetus with suspected fetal compromise, there seems to be no benefit to immediate delivery. Deferring delivery until test results worsen or increasing gestation favours delivery may improve the outcomes for mother and baby. More research is needed to guide clinical practice.

journal_name

Cochrane Database Syst Rev

journal_title

The Cochrane database of systematic reviews

authors

Stock SJ,Bricker L,Norman JE

doi

10.1002/14651858.CD008968.pub2

subject

Has Abstract

pub_date

2012-07-11 00:00:00

pages

CD008968

issue

issn

1469-493X

pub_type

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Immediate versus deferred delivery of the preterm baby with suspected fetal compromise for improving outcomes.