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Biol Neonate. 2005;87(1):27-34. Epub 2004 Sep 20.

Resuscitation of depressed newborn infants with ambient air or pure oxygen: a meta-analysis.

Author information

1
Department of Pediatric Research, Rikshospitalet, University of Oslo, Norway. o.d.saugstad@medisin.uio.no

Abstract

BACKGROUND:

It is discussed whether depressed newborn infants should be resuscitated with room air or 100% O2.

OBJECTIVE:

To perform a systematic review and meta-analysis including studies that report resuscitation of depressed newly born infants with 21 or 100% O2.

METHODS:

Inclusion criterion was randomized or pseudo-randomized, blinded or not, studies of depressed newborn infants resuscitated with either 21 or 100% O2. The literature was searched in Medline/Pubmed/EMBASE and The Cochrane library databases. All identified studies were included.

RESULTS:

Five studies fulfilled the inclusion criterion in which 881 infants were resuscitated with 21% O2 and 856 with 100% O2. Neonatal mortality was 8.0 vs. 13.0% in the 21 and 100% O2 groups respectively, OR 0.57, 95% CI 0.42-0.78. In term infants neonatal mortality was 5.9% in the 21% O2 group and 9.8% in the 100% O2 group, OR 0.59, 95% CI 0.40-0.87. The figures for the premature infants were very similar. In infants with 1-min Apgar score <4, OR for neonatal mortality was 0.81 (95% CI 0.54-1.21). Apgar score at 5 min and heart rate at 90 s were significantly higher, and time to first breath significantly earlier in infants given 21% O2 compared with 100% O2.

CONCLUSIONS:

A systematic review and meta-analysis demonstrated that neonatal mortality is significantly reduced when depressed newly born infants are resuscitated with ambient air instead of pure oxygen. For infants with low 1-min Apgar score (<4), no significant difference in neonatal mortality was found. Recovery was faster in infants resuscitated with 21% O2 than 100% O2.

PMID:
15452400
DOI:
10.1159/000080950
[Indexed for MEDLINE]
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