Abstract:
CONTEXT:The optimal oxygen saturation target for extremely preterm infants remains unclear. OBJECTIVE:To systematically review evidence evaluating the effect of lower (85%-89%) versus higher (91%-95%) pulse oxygen saturation (Spo2) target on mortality and neurodevelopmental impairment (NDI) at 18 to 24 months. DATA SOURCES:Electronic databases and all published randomized trials evaluating lower versus higher Spo2 target in preterm infants. STUDY SELECTION:A total of 2896 relevant citations were identified; 5 trials were included in the final analysis. DATA EXTRACTION:Data from 5 trials were analyzed for quality of evidence and risk of bias. LIMITATIONS:Limitations include heterogeneity in age at enrollment and comorbidities between trials and change in oximeter algorithm midway through 3 trials. RESULTS:There was no difference in the incidence of primary outcome (death/NDI at 18-24 months) in the 2 groups; risk ratio,1.05, 95% confidence interval 0.98-1.12, P = .18. Mortality before 18 to 24 months was higher in the lower-target group (risk ratio,1.16, 95% confidence interval 1.03-1.31, P = .02). Rates of NDI and severe visual loss did not differ between the 2 groups. Proportion of time infants spent outside the target range while on supplemental oxygen ranged from 8.2% to 27.4% <85% and 8.1% to 22.4% >95% with significant overlap between the 2 groups. CONCLUSIONS:There was no difference in primary outcome between the 2 Spo2 target groups. The collective data suggest that risks associated with restricting the upper Spo2 target limit to 89% outweigh the benefits. The quality of evidence was moderate. We speculate that a wider target range (lower alarm limit, 89% and upper, 96%) may increase time spent within range, but the safety profile of this approach remains to be determined.
journal_name
Pediatricsjournal_title
Pediatricsauthors
Manja V,Saugstad OD,Lakshminrusimha Sdoi
10.1542/peds.2016-1609subject
Has Abstractpub_date
2017-01-01 00:00:00issue
1eissn
0031-4005issn
1098-4275pii
peds.2016-1609journal_volume
139pub_type
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