Bacteria emitted in ambient air during bronchoscopy: A risk to health care workers?
Type de document
Études primaires
Année de publication
2016
Langue
Anglais
Titre de la revue
American Journal of Infection Control
Première page
1634
Dernière page
1638
Résumé
Background
Health care workers are at risk of occupational infections, and some procedures are known to increase this risk. The aim of this study was to qualify and quantify bioaerosol concentrations during bronchoscopy to estimate the occupational risk.
Methods
Full-day sampling was conducted in 2 rooms while bronchoscopies were performed on patients. Two microbial air samplers were used, a wet wall cyclonic sampler and an impactor, on culture media. Identification of the culturable bacterial flora was performed with chromatographic analysis of cellular fatty acid of the isolated strain and additional biochemical tests if needed. Specific polymerase chain reaction analysis was completed on wet wall cyclonic samples for the detection of influenza A and B and Mycobacterium spp.
Results
A wide variety of bacteria were collected from the ambient air. All samples yielded at least 1 Staphylococcus species. Although most of the culturable bacteria identified were normal nonpathogenic flora, such as Streptococcus spp, Neisseria spp, and Corynebacterium spp, some opportunistic pathogens, such as Streptococcus pneumoniae, were found. Neither Mycobacterium spp nor influenza virus was detected with the polymerase chain reaction method during this study.
Conclusions
Culturable bacteria from oral, nasal, and pulmonary flora are aerosolized during bronchoscopy and could be inhaled by medical staff. The potential presence of pathogens in those aerosols could represent an occupational infection risk.
Mots-clés
Aérosol, Aerosol, Évaluation de l'exposition, Exposure evaluation, Bronchoscopie, Bronchoscopy, Dynamique des particules en suspension, Particle dynamics, Dosage en milieu biologique, Determination in biological matter
Numéro de projet IRSST
0099-8980
Citation recommandée
Marchand, G., Duchaine, C., Lavoie, J., Veillette, M. et Cloutier, Y. (2016). Bacteria emitted in ambient air during bronchoscopy: A risk to health care workers? American Journal of Infection Control, 44(12), 1634-1638. https://doi.org/10.1016/j.ajic.2016.04.241