Respiratory failure & ventilation

High Airway Occlusion Pressure Is Associated with Dyspnea and Increased Mortality in Critically Ill Mechanically Ventilated Patients

Am J Respir Crit Care MedPublished Secondary analysis of a prospective cohort study

Primary result · 90-day mortalityResult — go to the resultHazard ratio 1.19 95% CI 1.04–1.37

Authors' conclusion

In patients receiving invasive MV, abnormally high P0.1 values may suggest dyspnea and are associated with higher mortality and prolonged duration of MV.

Study context

Population
Communicative patients intubated >24 hours in 10 French ICUs
Participants
260 patients
Comparison
P0.1 >3.5 vs 1.5–3.5 vs <1.5 cm H2O
Methodological detailsmulticentre
  • Multicentre

Primary result

90-day mortality · 90 days

Hazard ratio

1.19

95% CI 1.04–1.37

P = 0.011

By group

P0.1 (per 1 cm H2O)
HR 1.19 (95% CI 1.04–1.37); P = 0.011

Per 1 cm H2O, as printed

As reported in the abstract

Further findings

OutcomeHR (95% CI)P value
Duration of MVIndependently associated with longer duration1.10 (1.02–1.19)P = 0.016

P0.1 at enrollment and distribution

P0.1 at enrollment, cm H2O
1.9 (1-3.5)
P0.1 >3.5 cm H2O
24%
P0.1 1.5–3.5 cm H2O
37%
P0.1 <1.5 cm H2O
39%
  • Median time of ventilation 4 days

Independent factors associated with P0.1 (multivariable linear regression)

Dyspnea
P = 0.037
Respiratory rate
P < 0.001
PaO2
P = 0.008

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

High Airway Occlusion Pressure Is Associated with Dyspnea and Increased Mortality in Critically Ill Mechanically Ventilated Patients. Am J Respir Crit Care Med. Published 15 July 2024. doi:10.1164/rccm.202308-1358oc

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