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Scientific article
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Prevention of submicron aerosolized particle dispersion: evaluation of an aerosol box using a pediatric simulation model

Published inExperimental lung research, vol. 48, no. 9-10, p. 266-274
Publication date2022-10-21
First online date2022-10-21
Abstract

Background and Aim: The SplashGuard CG (SG) is a barrier enclosure developed to protect healthcare workers from SARS-CoV-2 transmission during aerosol-generating procedures. Our objective was to evaluate the protection provided by the SG against aerosolized particles (AP), using a pediatric simulation model of spontaneous ventilation (SV) and noninvasive ventilation (NIV).

Methods: An aerosol generator was connected to the airways of a pediatric high-fidelity manikin with a breathing simulator. AP concentrations were measured both in SV and NIV in the following conditions: with and without SG, inside and outside the SG, with and without suction applied to the device.

Results: In the SV simulated setting, AP peaks were lower with SG: 0.1 × 105 particles/L compared to without: 1.6 × 105, only when the ports were closed and suction applied. In the NIV simulated setting, AP peaks outside the SG were lower than without SG (20.5 × 105 particles/L), whatever the situation, without suction (14.4 × 105particles/L), with suction and ports open or closed: 10.3 and 0.7 × 105 particles/L. In SV and NIV simulated settings, the AP peaks measured within the SG were much higher than the AP peaks measured without SG, even when suction was applied to the device.

Conclusions: The SG seems to decrease peak AP exposure in the 2 ventilation contexts, but only with closed port and suction in SV. However, high concentrations of AP remain inside even with suction and SG should be used cautiously.

eng
Keywords
  • Aerosol
  • COVID-19
  • Aerosol box
  • Children
  • Simulation
Affiliation Not a UNIGE publication
Citation (ISO format)
TABONE, Laurence et al. Prevention of submicron aerosolized particle dispersion: evaluation of an aerosol box using a pediatric simulation model. In: Experimental lung research, 2022, vol. 48, n° 9-10, p. 266–274. doi: 10.1080/01902148.2022.2135795
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ISSN of the journal0190-2148
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Creation01/10/2023 3:24:00 PM
First validation01/10/2023 3:24:00 PM
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