Airborne particle dispersion around the feet of surgical staff while walking in and out of a bio-clean operating theatre.
Airborne particles
Surgery
Surgical site infection
Walk
Journal
The Journal of hospital infection
ISSN: 1532-2939
Titre abrégé: J Hosp Infect
Pays: England
ID NLM: 8007166
Informations de publication
Date de publication:
Oct 2020
Oct 2020
Historique:
received:
10
05
2020
accepted:
14
07
2020
pubmed:
24
7
2020
medline:
16
6
2021
entrez:
24
7
2020
Statut:
ppublish
Résumé
Bacterial contamination by airborne particles is one of the most important factors in the pathogenesis of surgical-site infections. This study aimed to identify the generation and behaviour of airborne particles around the feet of surgical staff while walking in and out of an operating theatre. Two physicians and two nurses walked in and out of a bio-clean theatre under laminar airflow, either individually or as a group. The generation and behaviour of airborne particles was filmed using a fine-particle visualization system, and the number of airborne particles per 2.83 m Airborne particles were generated from the floor and by the shoes and gown hems of the participants, whether walking individually or as a group. Numerous airborne particles were generated by the group, and significantly more particles, especially those measuring 0.3-0.5 μm, were carried up to the level of the operating table by the group than by individuals (P<0.01). The results of this study provide a clearer picture of the dispersion and distribution of airborne particles around the feet of staff walking in and out of an operating theatre. The findings suggest that to reduce the incidence of bacterial contamination and risk of surgical site infections, surgical staff should walk calmly and independently, if possible, near sterile areas.
Sections du résumé
BACKGROUND
BACKGROUND
Bacterial contamination by airborne particles is one of the most important factors in the pathogenesis of surgical-site infections.
AIM
OBJECTIVE
This study aimed to identify the generation and behaviour of airborne particles around the feet of surgical staff while walking in and out of an operating theatre.
METHODS
METHODS
Two physicians and two nurses walked in and out of a bio-clean theatre under laminar airflow, either individually or as a group. The generation and behaviour of airborne particles was filmed using a fine-particle visualization system, and the number of airborne particles per 2.83 m
FINDINGS
RESULTS
Airborne particles were generated from the floor and by the shoes and gown hems of the participants, whether walking individually or as a group. Numerous airborne particles were generated by the group, and significantly more particles, especially those measuring 0.3-0.5 μm, were carried up to the level of the operating table by the group than by individuals (P<0.01).
CONCLUSIONS
CONCLUSIONS
The results of this study provide a clearer picture of the dispersion and distribution of airborne particles around the feet of staff walking in and out of an operating theatre. The findings suggest that to reduce the incidence of bacterial contamination and risk of surgical site infections, surgical staff should walk calmly and independently, if possible, near sterile areas.
Identifiants
pubmed: 32702464
pii: S0195-6701(20)30347-9
doi: 10.1016/j.jhin.2020.07.016
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
318-324Informations de copyright
Copyright © 2020 The Author(s). Published by Elsevier Ltd.. All rights reserved.