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Article ; Online: Commonly available but highly effective protection against SARS-CoV-2 during gastrointestinal endoscopies.

Keil, Radan / Hlava, Štěpán / Stanovský, Petr / Ždímal, Vladimír / Šťovíček, Jan / Trojánek, Milan / Drábek, Jiří / Frýbová, Barbora / Petráček, Vojtěch / Wasserbauer, Martin

PloS one

2021  Volume 16, Issue 7, Page(s) e0254979

Abstract: Background and aims: SARS-CoV-2 is a worldwide serious health problem. The aim of this study was to demonstrate the number of potentially infectious particles present during endoscopic procedures and find effective tools to eliminate the risks of SARS- ... ...

Abstract Background and aims: SARS-CoV-2 is a worldwide serious health problem. The aim of this study was to demonstrate the number of potentially infectious particles present during endoscopic procedures and find effective tools to eliminate the risks of SARS-CoV-2 infection while performing them.
Methods: An experimental model which focused on aerosol problematics was made in a specialized laboratory. This model simulated conditions present during endoscopic procedures and monitored the formation of potentially infectious fluid particles from the patient's body, which pass through the endoscope and are then released into the environment. For this reason, we designed and tested a prototype of a protective cover for the endoscope's control body to prevent the release and spread of these fluid particles from its working channel. We performed measurements with and without the protective cover of the endoscope's control body.
Results: It was found that liquid coming through the working channel of the endoscope with forceps or other instruments inside generates droplets with a diameter in the range of 0.1-1.1 mm and an initial velocity of up to 0.9 m/s. The average number of particles per measurement per whole measured area without a protective cover on the endoscope control body was 51.1; with this protective cover on, the measurement was 0.0, p<0.0001.
Conclusions: Our measurements proved that fluid particles are released from the working channel of an endoscope when forceps are inserted. A special protective cover for the endoscope control body, made out of breathable material (surgical cap) and designed by our team, was found to eliminate this release of potentially infectious fluid particles.
MeSH term(s) COVID-19/prevention & control ; COVID-19/transmission ; Endoscopy, Gastrointestinal ; Humans ; Infectious Disease Transmission, Patient-to-Professional/prevention & control ; Protective Clothing ; SARS-CoV-2
Language English
Publishing date 2021-07-23
Publishing country United States
Document type Journal Article ; Research Support, Non-U.S. Gov't
ISSN 1932-6203
ISSN (online) 1932-6203
DOI 10.1371/journal.pone.0254979
Database MEDical Literature Analysis and Retrieval System OnLINE

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