Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Randomized Controlled Trial
. 2025 Nov;135(5):1477-1485.
doi: 10.1016/j.bja.2025.09.002. Epub 2025 Oct 3.

Noninvasive ventilation in postoperative critically ill patients with morbid obesity: secondary analysis of the EXTUBOBESE multicentre randomised clinical trial

Collaborators, Affiliations
Randomized Controlled Trial

Noninvasive ventilation in postoperative critically ill patients with morbid obesity: secondary analysis of the EXTUBOBESE multicentre randomised clinical trial

Audrey De Jong et al. Br J Anaesth. 2025 Nov.

Abstract

Background: The optimal method to prevent treatment failure after tracheal extubation in postoperative critically ill patients with obesity and morbid obesity remains unknown.

Methods: We conducted a secondary analysis of the EXTUBOBESE multicentre RCT comparing prophylactic noninvasive ventilation (NIV) and oxygen therapy (high-flow nasal oxygen [HFNO] and standard oxygen) in 585 postoperative critically ill patients with obesity (BMI ≥30 kg m-2) and morbid obesity (BMI ≥40 kg m-2). The primary outcome was treatment failure within 3 days after extubation, a composite of reintubation within 3 days (also analysed separately as secondary outcome), switch to the other study treatment, or premature study treatment discontinuation. The primary outcome analysis used a χ2 test. A Cox model was used for time without reintubation.

Results: Treatment failure occurred in 39/292 patients (13.4%) in the NIV group and in 70/293 patients (23.9%) in the oxygen therapy group (absolute risk difference: -10.5; 95% confidence interval: -16.8 to -4.3). Similar results were found when analysing separately HFNO from standard oxygen in the oxygen therapy group. Reintubation rate was 8.6% (25 patients) in the NIV group and 9.9% (29 patients) in the oxygen therapy group (P=0.58). Interaction test was significant for level of obesity (P=0.045). Time without reintubation according to level of obesity significantly differed between NIV group and oxygen therapy group (P=0.02) in patients with BMI ≥40 kg m-2, but not in patients with 30≤BMI<40 kg m-2 (P=0.70).

Conclusions: Among postoperative critically ill adults with obesity undergoing tracheal extubation, our results suggest that use of noninvasive ventilation is effective to reduce treatment failure in comparison with oxygen therapy alone. These effects were more pronounced in patients with morbid obesity.

Clinical trial registration: NCT04014920.

Keywords: acute respiratory failure; extubation; intensive care unit; noninvasive ventilation; obesity; postoperative care; weaning.

PubMed Disclaimer

Conflict of interest statement

Declarations of interest SJ reports receiving consulting fees from Drager, Medtronic, Mindray, Fresenius, Baxter, and Fisher & Paykel. ADJ reports receiving remuneration for presentations from Medtronic, Drager, and Fisher & Paykel. VL reported being a member of a research group that has received grants from Alexion, Baxter, MSD, Gilead, Sanofi, and Celgène. NT received fees for lecture by Fisher & Paykel outside this work and is supported by Pfizer for attending meetings, travel, or both and non-financial supports from Gilead outside this work. No conflicts of interest are reported for other authors.

Figures

Fig 1
Fig 1
Subgroup analyses of the primary outcome. The method of oxygen delivery while on oxygen therapy (high-flow nasal oxygen vs standard oxygen) did not modify the effect of the noninvasive ventilation (NIV) group on the treatment failure rate. Length of mechanical ventilation, and age did not modify the effect of NIV group on the treatment failure rate, whereas level of obesity did (P for interaction: 0.045). CI, confidence interval.
Fig 2
Fig 2
Kaplan–Meier analysis of the primary outcome. Time without treatment failure within 3 days after extubation was significantly higher in the noninvasive ventilation group than in the oxygen therapy group.
Fig 3
Fig 3
Kaplan–Meier analysis of reintubation within 3 days according to level of obesity. Time without reintubation within 3 days according to the level of obesity significantly differed between the noninvasive ventilation (NIV) group and oxygen therapy group (P=0.02) in patients with BMI ≥40 kg m−2, but not in patients with BMI between 30 and 40 kg m−2 (P=0.70).

References

    1. Hernández G., Dianti J., Paredes I., et al. Humidified noninvasive ventilation versus high-flow therapy to prevent reintubation in patients with obesity: a randomized clinical trial. Am J Respir Crit Care Med. 2025;211:222–229. - PubMed
    1. De Jong A., Wrigge H., Hedenstierna G., et al. How to ventilate obese patients in the ICU. Intensive Care Med. 2020;46:2423–2435. - PMC - PubMed
    1. De Jong A., Rollé A., Souche F.R., et al. How can I manage anaesthesia in obese patients? Anaesth Crit Care Pain Med. 2020;39:229–238. - PubMed
    1. Pickkers P. The obesity paradox in patients in need of extracorporeal membrane oxygenation. Am J Respir Crit Care Med. 2023;208:649–650. - PMC - PubMed
    1. Althoff M.D., Gaietto K., Holguin F., Forno E. Obesity-related asthma: a pathobiology-based overview of existing and emerging treatment approaches. Am J Respir Crit Care Med. 2024;210:1186–1200. - PMC - PubMed

Publication types

Associated data