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• W2467514510 abstract "•Bacterial concentrations during bronchoscopies are higher than during backgrounds.•Opportunistic bacteria were identified in the ambient air during bronchoscopies.•Pathogens are to be expected depending on the patient pathology.•Main problem comes from patients with unsuspected or undiagnosed infections. BackgroundHealth 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.MethodsFull-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.ResultsA 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.ConclusionsCulturable 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. 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. 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. 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. 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." @default.
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• W2467514510 date "2016-12-01" @default.
• W2467514510 modified "2023-10-18" @default.
• W2467514510 title "Bacteria emitted in ambient air during bronchoscopy—a risk to health care workers?" @default.
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• W2467514510 doi "https://doi.org/10.1016/j.ajic.2016.04.241" @default.
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