| Autor: |
Ryan C. Sullivan, Howard B. Gutstein, John P. Lawrence, Luke W. Monroe, Jack S. Johnson, Coty N. Jen, Keith Lejeune |
| Rok vydání: |
2020 |
| Předmět: |
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| DOI: |
10.1101/2020.11.23.20237255 |
| Popis: |
Structured AbstractBackgroundSARS-CoV-2 (COVID-19) is a severe respiratory virus that can be transmitted through aerosol particles produced by coughing, talking, and breathing. Medical procedures used to treat severe cases such as tracheal intubation, extubation, and tracheal suctioning produce infectious aerosol particles. This presents significant risk for viral exposure of nearby healthcare workers during and following tracheal operations. This study looks at an enclosure to limit medical personnel’s exposure to these particles.MethodsA low-cost plastic enclosure was designed to reduce aerosol spread and viral transmission during intubation and extubation procedures. The enclosure consists of clear polycarbonate for maximum visibility. Large side cutouts provide health care providers with ease of access to the patient. Aerosol particle instruments measured the aerosol containment efficacy after applying various types of plastic coverings to seal the side openings. The use of negative pressure was also tested.ResultsThe enclosure with 2 layers of plastic coverings sealing the side openings reduced total escaped particle number concentrations (diameter > 0.01 μm) by over 93% at 3 inches away from all openings. Concentration decay experiments indicated that the enclosure without active suction should be left on the patient for 15-20 minutes following a tracheal manipulation to allow sufficient time for >90% of aerosol particles to settle upon interior surfaces. This decreases to 5 minutes when 30 LPM suction is applied.ConclusionsThis enclosure is an inexpensive, easily implemented additional layer of protection that can be used to reduce the risk of SARS-CoV-2 aerosol transmission between patients and healthcare workers. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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