High-Flow Nasal Oxygen Versus Conventional Oxygen Therapy and Non-Invasive Ventilation for Acute Respiratory Failure in the Emergency Department: A Systematic Review and Meta-Analysis.
Rupert Phillips, Adrianna Klejnotowska, Harry Claxton et al.
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In 30 seconds
This systematic review and meta-analysis evaluated high-flow nasal oxygen (HFNO) versus conventional oxygen therapy (COT) and non-invasive ventilation (NIV) for acute respiratory failure in adults in the emergency department. The analysis of 17 randomized controlled trials involving 1955 patients found a significant reduction in the need for intubation and mechanical ventilation (IMV) with HFNO compared to COT and NIV (RR 0.64, 95% CI 0.47-0.88).
Key findings
- HFNO significantly reduced the need for IMV compared to COT and NIV (RR 0.64, 95% CI 0.47-0.88).
- Subgroup analysis showed reduced IMV rates with HFNO compared to COT (RR 0.61, 95% CI 0.41-0.91).
- HFNO improved respiratory rate, SpO2, PaO2, and dyspnoea scores compared to COT and NIV.
- Ten of the 17 studies had concerns regarding risk of bias.
Why it matters
The findings suggest that HFNO may be a more effective initial treatment for acute respiratory failure in the emergency department, potentially reducing the need for invasive interventions and improving patient outcomes.
What to keep in mind
Ten of the 17 studies had at least some concern for risk of bias, and several analyses exhibited notable heterogeneity.