Pediatric anesthesia & critical care

Effect of Early High-Flow Nasal Oxygen vs Standard Oxygen Therapy on Length of Hospital Stay in Hospitalized Children With Acute Hypoxemic Respiratory Failure: The PARIS-2 Randomized Clinical Trial

JAMAPublished Randomised controlled trial

An erratum to this article was published (JAMA, 11 Apr 2023 ↗)

Authors' conclusion

Nasal high-flow oxygen used as the initial primary therapy in children aged 1 to 4 years with acute hypoxemic respiratory failure did not significantly reduce the length of hospital stay compared with standard oxygen therapy.

Study context

Population
Children aged 1 to 4 years requiring hospital admission for acute hypoxemic respiratory failure, 14 metropolitan and tertiary hospitals in Australia and New Zealand1,517 (97%) in primary analysis
Participants
1,567 children
Comparison
Early high-flow nasal oxygen vs standard oxygen therapy
  • High-flow oxygenn = 753
  • Standard oxygenn = 764reference
Primary endpoint
Length of hospital stay
Methodological detailsmulticentre, investigators blinded until outcome data locked
  • Multicentre
  • Investigators blinded until outcome data locked

Primary result

As reported in the abstract

Adjusted hazard ratio

0.83

95% CI 0.75–0.92

P < 0.001

By group

High-flow oxygen vs Standard oxygen
adjusted HR 0.83 (95% CI 0.75–0.92); P < 0.001

Secondary outcomes

OutcomeHigh-flow oxygenStandard oxygenEstimate
Length of oxygen therapyMedian, days1.07 (IQR 0.50–2.06)0.75 (IQR 0.35–1.61)aHR 0.78 (95% CI 0.70–0.86)
ICU admission12.5%6.9%aOR 1.93 (95% CI 1.35–2.75)

Prespecified secondary outcomes

Of the 9 prespecified secondary outcomes, 4 showed no significant difference

Death

Only 1 death, in the high-flow oxygen group

Original publication

Effect of Early High-Flow Nasal Oxygen vs Standard Oxygen Therapy on Length of Hospital Stay in Hospitalized Children With Acute Hypoxemic Respiratory Failure: The PARIS-2 Randomized Clinical Trial. JAMA. Published 17 January 2023. doi:10.1001/jama.2022.21805

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