Respiratory failure & ventilation

Potentially modifiable ventilatory factors contributing to outcome in patients with pulmonary and extrapulmonary ARDS — An individual patient data analysis

J Clin AnesthPublished Secondary pooled individual patient data analysis of six observational studies

Authors' conclusion

High ΔP and high RR were associated with 60-day mortality in patients with pulmonary and extrapulmonary ARDS receiving mechanical ventilation, with ΔP showing a stronger association in pulmonary ARDS compared with extrapulmonary ARDS.

Study context

Population
Mechanically ventilated patients with pulmonary or extrapulmonary ARDS
Participants
7,934 participants · 6 observational studies
Comparison
Pulmonary ARDS vs Extrapulmonary ARDS
Outcome
Mortality
Follow-up
Day 60 after inclusion

Pooled result

As reported in the abstract

60-day mortality · day 60
Did not survive
3402 (43%)
Interaction etiology × ΔP: stronger association in pulmonary vs extrapulmonary ARDS
p < 0.001

Further pooled results

60-day mortality, excluding COVID-19 patients (sensitivity analysis)

Respiratory rate no longer associated; ΔP remained associated

Original publication

Potentially modifiable ventilatory factors contributing to outcome in patients with pulmonary and extrapulmonary ARDS — An individual patient data analysis. J Clin Anesth. Published 17 February 2026. doi:10.1016/j.jclinane.2025.112120

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