Aerosol precautions and airway complications: a national prospective multicentre cohort study
Main finding · Airway complicationsResult — go to the resultOdds ratio 1.38 95% CI 1.04–1.83Authors' conclusion
Overall, the use of filtering facepiece class 2 or class 3 respirators was associated with an increased risk of airway complications, but most aerosol precautions used during the COVID-19 pandemic were not.
Study context
- Population
- Adults undergoing GA for elective or emergency procedures over a 96-hour period
- Participants
- 5,905 adults · 70 hospital sites
- Exposure
- Individual aerosol precautions vs not used
- Outcome
- Overall airway complications
Methodological detailsnational, multicentre
- National
- Multicentre
Main finding
Airway complications
Odds ratio
1.38
95% CI 1.04–1.83
Individual aerosol precautions (FFP2/FFP3 respirators, goggles, powered air-purifying respirators, long-sleeved gowns, double gloves, videolaryngoscopy) vs not used
OR 1.38 (95% CI 1.04–1.83)
As reported in the abstract
- Overall rate of airway complications
- 10.0% (95%CI 9.2-10.8%)
Observational data: associations, not effects.
Further findings
Difficult facemask ventilation
| OR (95% CI) | ||
|---|---|---|
| Filtering facepiece class 2 or class 3 respirators | 1.68 (1.09–2.61) | |
| 0.20.5125Odds ratio (log scale) |
Desaturation on pulse oximetry
| OR (95% CI) | ||
|---|---|---|
| Filtering facepiece class 2 or class 3 respirators | 2.39 (1.26–4.54) | |
| 0.20.5125Odds ratio (log scale) |
Original publication
Aerosol precautions and airway complications: a national prospective multicentre cohort study. Anaesthesia. Published 7 September 2022. doi:10.
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