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호흡기 분리형 음압 챔버의 개발과 기도 삽관 시 보호 효과의 확인

Other Titles
 Simulation study: the development of a respiratory barrier enclosure with negative pressure and the analysis of its protective effect during intubation 
Authors
 정용재  ;  성기섭  ;  유지나  ;  홍주영  ;  정현수 
Citation
 Journal of the Korean Society of Emergency Medicine (대한응급의학회지), Vol.32(6) : 601-610, 2021-12 
Journal Title
Journal of the Korean Society of Emergency Medicine(대한응급의학회지)
ISSN
 1226-4334 
Issue Date
2021-12
Keywords
Aerosols ; COVID-19 ; Infectious disease transmission ; Intubation ; Negative pressure ; Patient isolation
Abstract
Objective: Within the last 2 years, coronavirus disease 2019 has spread rapidly across several continents, with 100 million confirmed infected patients. Physical barrier enclosure, also called “aerosol-box,” is a solution for the shortage of protective devices and spaces. In this study, we examined the safety of the novel barrier enclosure.
Methods: We simulated droplets by nebulizing 1% glycerol+99% ethanol solution. Two experienced physicians performed intubation under two conditions, such as the isolator condition (applying isolator without negative condition) and the negative pressure condition (applying isolator with the negative condition). We compared two conditions with two control groups, including negative control (room air) and positive control (synthetizing droplet air). During the procedure, particles were counted for 30 seconds, and this was repeated 10 times. At each condition, depending on the result of the normality test (Shapiro-Wilk test), an independent t-test was used when normality was satisfied, and a Mann-Whitney Utest was used when normality was not satisfied.
Results: The total number of particles in the positive control was 308,788 (175,936-461,124). The total number of particles for both conditions was significantly less than the positive control. Total number of particles in the isolator condition was 30,952 (27,592-33,244, P=0.001) and that in the negative pressure condition was 27,890 (27,165-29,786, P=0.001).
Conclusion: The novel barrier significantly reduces synthetizing droplets exposure during intubation. Application of negative pressure through the isolator results in an additional decrease in particle exposure. Studies involving a larger population of operators and prolonged procedures are required.
Files in This Item:
T202203676.pdf Download
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Emergency Medicine (응급의학교실) > 1. Journal Papers
Yonsei Authors
Yu, Gina(유지나)
Chung, Hyun Soo(정현수) ORCID logo https://orcid.org/0000-0001-6110-1495
Hong, Ju Young(홍주영) ORCID logo https://orcid.org/0000-0003-3416-3054
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/191146
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