Respiratory failure & ventilation

Safety and Outcome of High-Flow Nasal Oxygen Therapy Outside ICU Setting in Hypoxemic Patients With COVID-19*

Crit Care MedPublished Prospective observational cohort study

Authors' conclusion

In this large cohort of hypoxemic patients with COVID-19, initiation of HFNO outside the ICU was safe, and clinical outcomes were similar to initiation in the ICU.

Study context

Population
Adults treated with high-flow nasal oxygen (HFNO) for COVID-19-associated hypoxemia, respiratory wards and ICUs of 10 hospitals in The Netherlands, December 2020–July 2021; patients with treatment limitations excludedmatched cohort n = 214
Participants
608 adults
Exposure
HFNO initiated on the ward vs in the ICU
  • Ward startersn = 379
  • ICU startersn = 229reference
Outcome
Intubation rate
Methodological detailsmulticentre, pragmatic, propensity-matched analysis
  • Multicentre
  • Pragmatic
  • Propensity-matched analysis

Main finding

As reported in the abstract

P = 0.41

Observational data: associations, not effects.

Further findings

Mortality (matched cohort) · 28 d — 28-d mortality comparable between groups, ward vs ICU starters · matched cohort
8% vs 13% · P = 0.28
ICU-free days (matched cohort) — ICU-free days significantly higher in ward starters, ward vs ICU starters (d) · matched cohort
21 vs 17 · P < 0.001

Intubated ward vs ICU starters (subgroup): severity of respiratory failure and outcomes

Respiratory rate-oxygenation index, ward vs ICU starters
3.20 vs 3.38
PaO2:FiO2 ratio (mm Hg), ward vs ICU starters
65 vs 64
Prone positioning after intubation, ward vs ICU starters
81 vs 78%
Mortality rate, ward vs ICU starters
17 vs 25%
Ventilator-free days at 28 d, ward vs ICU starters
15 vs 13 d
No patient died before endotracheal intubation
  • Did not differ; all p values > 0.05

Original publication

Safety and Outcome of High-Flow Nasal Oxygen Therapy Outside ICU Setting in Hypoxemic Patients With COVID-19*. Crit Care Med. Published 19 October 2023. doi:10.1097/ccm.0000000000006068

Composed by AI from the published abstract and checked against it. How Briefs are made →

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