Noninvasive vs Invasive Respiratory Support for Patients with Acute Hypoxemic Respiratory Failure.
Noninvasive respiratory support for acute hypoxemic respiratory failure did not decrease in-hospital death but increased alive hospital discharge. Nasal high flow and noninvasive positive pressure ventilation showed varied death rates but improved alive discharge.
Area of Science:
- Critical Care Medicine
- Pulmonology
- Respiratory Therapy
Background:
- Noninvasive respiratory support (NIRS) modalities like noninvasive positive pressure ventilation (NIPPV) and nasal high flow (NHF) are alternatives to mechanical ventilation for acute hypoxemic respiratory failure (AHF).
- Limited comparative outcome data exist between NIRS and invasive mechanical ventilation (IMV).
Approach:
- A retrospective cohort study analyzed 3177 patients with AHF from January 2018 to December 2019.
- Phenotyping algorithms identified patients initially treated with NIRS versus IMV.
- Outcomes included in-hospital death and alive hospital discharge, analyzed using weighted Cox models.
Key Points:
- Initial NIRS was not associated with reduced in-hospital death (HR: 0.65, 95% CI: 0.35 - 1.2).
- Initial NIRS was associated with increased likelihood of alive hospital discharge (HR: 2.26, 95% CI: 1.92 - 2.67).
- Nasal high flow showed a higher hazard of in-hospital death (HR 3.27) compared to NIPPV (HR 0.52), but both improved alive discharge.
Conclusions:
- Observational data suggest NIRS does not reduce in-hospital death but improves alive hospital discharge in AHF.
- Potential differences in outcomes exist between NIPPV and NHF, warranting further investigation.
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