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J Hosp Infect. 2019 Jan;101(1):84-87. doi: 10.1016/j.jhin.2018.10.007. Epub 2018 Oct 15.

Comparison of high-flow nasal cannula versus oxygen face mask for environmental bacterial contamination in critically ill pneumonia patients: a randomized controlled crossover trial.

Author information

1
Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong.
2
Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong. Electronic address: gavinmjoynt@cuhk.edu.hk.
3
Department of Microbiology, The Chinese University of Hong Kong, Hong Kong.
4
Department of Pathology, Union Hospital, Hong Kong.

Abstract

Whereas high-flow nasal cannula use is gaining prevalence, its high gas flow raises concerns about aerosolization of infectious particles and spread of infection. This randomized controlled crossover non-inferiority trial (N = 20) evaluated the degree of environmental contamination by viable bacteria associated with the use of high-flow nasal cannula compared with conventional oxygen mask for critically ill patients with Gram-negative pneumonia. The results show that high-flow nasal cannula use was not associated with increased air or contact surface contamination by either Gram-negative bacteria or total bacteria, suggesting that additional infection control measures are not required.

KEYWORDS:

Bacterial pneumonia; Environmental contamination; Infection control; Infectious disease transmission; Oxygen therapy

PMID:
30336170
DOI:
10.1016/j.jhin.2018.10.007
[Indexed for MEDLINE]
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