Respiratory failure & ventilation

Postoperative prophylactic intermittent noninvasive ventilation versus usual postoperative care for patients at high risk of pulmonary complications: a multicentre randomised trial

Br J AnaesthPublished Randomised controlled trial

Primary resultResult — go to the resultOdds ratio 0.97 95% CI 0.90–1.04

Authors' conclusion

Prophylactic NIV did not prevent acute respiratory failure.

Study context

Population
Patients at high risk of postoperative pulmonary complications (ARISCAT score ≥45) after elective or semi-urgent surgery253 analysed
Participants
266 patients
Comparison
Intermittent prophylactic face-mask noninvasive ventilation (NIV) vs usual postoperative care
  • NIVn = 125
  • Usual caren = 128reference
Primary endpoint
In-hospital acute respiratory failure
Follow-up
Within 7 days after surgery
Methodological detailsopen, multicentre, November 2017 to October 2019
  • Open
  • Multicentre
  • November 2017 to October 2019

Primary result

As reported in the abstract

Odds ratio

0.97

95% CI 0.90–1.04

P = 0.54

Events by treatment group

NIV vs Usual care
OR 0.97 (95% CI 0.90–1.04); P = 0.54

Further findings

Unplanned treatment termination (NIV)
58 · events
  • Unplanned treatment termination (NIV): linked to NIV discomfort in 36

Safety

NIV discomfort leading to treatment termination
36 · events

Original publication

Postoperative prophylactic intermittent noninvasive ventilation versus usual postoperative care for patients at high risk of pulmonary complications: a multicentre randomised trial. Br J Anaesth. Published 5 January 2022. doi:10.1016/j.bja.2021.11.033

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