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Updated: May 17, 2026

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A Structured Approach to Extubation in Mechanically Ventilated Rats
Published on: July 18, 2025
Ventilator Settings and Monitoring Variables Associated with Extubation Failure in Critically Ill Patients: A
Emilio Steinberg1, Luis Ignacio Garegnani1, Damián Steinberg2
1Hospital Italiano - Buenos Aires, Argentina.
Critical Care Science
|May 15, 2026
Summary
Extubation success in mechanically ventilated patients is linked to ventilator settings. Better oxygenation is protective, while higher PEEP and FiO2 increase extubation failure risk.
Area of Science:
- Critical Care Medicine
- Respiratory Physiology
Background:
- Mechanical ventilation is crucial for acute respiratory failure.
- Extubation is a critical event with potential for failure, even after a spontaneous breathing trial.
Purpose of the Study:
- To identify ventilator settings and monitoring variables associated with extubation failure.
- To evaluate factors influencing successful extubation in critically ill patients.
Main Methods:
- Retrospective, multicenter cohort study (July 2021 - December 2022) in Argentina.
- Included adult patients (≥18 years) with ≥48 hours of mechanical ventilation.
- Multivariable logistic regression analyzed extubation failure (reintubation/death within 7 days), adjusting for APACHE II score, SBT type, post-extubation support, and COVID-19.
Main Results:
- Extubation failure rate was 35.8% in 516 analyzed patients.
- Improved oxygenation (SpO2/FiO2 ratio) showed a protective effect (OR 0.99).
- Higher positive end-expiratory pressure (PEEP), fraction of inspired oxygen (FiO2), and peak pressure were associated with increased failure risk (ORs 1.26, 1.04, 1.04 respectively).
- Delirium and greater use of neuromuscular blocking agents were noted in patients who failed.
Conclusions:
- Ventilator settings, monitoring parameters, and oxygenation influence extubation success in critically ill patients.
- Good oxygenation is protective against extubation failure.
- Elevated PEEP and FiO2 may signal increased vulnerability to extubation failure.
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