Investigation of the optimal method of oxygen administration with simultaneous use of a surgical mask: a randomized control study

Investigation of the optimal method of oxygen administration with simultaneous use of a surgical mask: a randomized control study

Purpose From the perspective of infection prevention during the Coronavirus disease 2019 (COVID-19) pandemic, a recommendation was made to use surgical masks after extubation in patients in the operating room. For compliance with this recommendation, anesthesiologists need to administer oxygen to th...

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Bibliographic Details
Published in:Journal of anesthesia 2022-02, Vol.36 (1), p.26-31
Main Authors: Matsui, Yusuke, Takazawa, Tomonori, Takemae, Akihito, Murooka, Yukie, Kanamoto, Masafumi, Saito, Shigeru
Format: Article
Language:eng
Subjects:
Analysis
Anesthesiology
Cannula
Coronaviruses
COVID-19
Critical Care Medicine
Emergency Medicine
Epidemics
Health aspects
Humans
Infection
Intensive
Japan
Masks
Medical research
Medicine
Medicine & Public Health
Medicine, Experimental
Methods
Original
Original Article
Oxygen
Oxygen Inhalation Therapy
Pain Medicine
SARS-CoV-2
Surgery
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Summary:Purpose From the perspective of infection prevention during the Coronavirus disease 2019 (COVID-19) pandemic, a recommendation was made to use surgical masks after extubation in patients in the operating room. For compliance with this recommendation, anesthesiologists need to administer oxygen to the patient with an oxygen mask over the surgical mask. However, no studies have investigated whether this method allows good maintenance of oxygenation in patients. This study aimed to investigate which method of oxygen administration lends itself best to use with a surgical mask in terms of oxygenation. Method We administered oxygen to the study subjects using all the following three methods in random order: an oxygen mask over or under a surgical mask and a nasal cannula under the surgical mask. Oxygenation was assessed using the oxygen reserve index (ORi) and end-tidal oxygen concentration (EtO 2 ). Result This study included 24 healthy volunteers. ORi values with administration of oxygen were higher in the order of a nasal cannula under the surgical mask, an oxygen mask under the surgical mask, and an oxygen mask over the surgical mask, with median values of 0.50, 0.48, and 0.43, respectively, and statistically significant differences between all groups ( P  
ISSN:0913-8668
1438-8359