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Intraoperative aerosol box use: does an educational visual aid reduce contamination?

대한마취과학회지 2021년 74권 2호 p.158 ~ 164
Burnett Garrett W., Zhou George, Fried Eric A., Shah Ronak S., Park Chang, Katz Daniel,
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 ( Burnett Garrett W. ) - Icahn School of Medicine at Mount Sinai Department of Anesthesiology, Perioperative and Pain Medicine
 ( Zhou George ) - Icahn School of Medicine at Mount Sinai Department of Anesthesiology, Perioperative and Pain Medicine
 ( Fried Eric A. ) - Icahn School of Medicine at Mount Sinai Department of Anesthesiology, Perioperative and Pain Medicine
 ( Shah Ronak S. ) - Icahn School of Medicine at Mount Sinai Department of Anesthesiology, Perioperative and Pain Medicine
 ( Park Chang ) - Icahn School of Medicine at Mount Sinai Department of Anesthesiology, Perioperative and Pain Medicine
 ( Katz Daniel ) - Icahn School of Medicine at Mount Sinai Department of Anesthesiology, Perioperative and Pain Medicine

Abstract


Background: The aerosol box was rapidly developed and disseminated to minimize viral exposure during aerosolizing procedures during the COVID-19 pandemic, yet users may not understand how to use and clean the device. This could potentially lead to increased viral exposure to subsequent patients and practitioners. We evaluated intraoperative contamination and aerosol box decontamination and the impact of a preoperative educational visual aid.

Methods: Using a double-blinded randomized design, forty-four anesthesiology trainees and faculty completed a simulated anesthetic case using an aerosol box contaminated with a fluorescent marker; half of the subjects received a visual aid prior to the simulation. Intraoperative contamination was evaluated at 10 standardized locations using an ultraviolet (UV) light. Next, subjects were instructed to clean the aerosol box for use on the next patient. Following cleaning, the box was evaluated for decontamination using an UV light.

Results: Median total contamination score was significantly reduced in the experimental group (5.0 vs. 10.0, P < 0.001). The aerosol box was completely cleaned by 36.4% of subjects in the experimental group compared to 4.5% in the control group (P = 0.009).

Conclusions: The use of a visual aid significantly decreased intraoperative contamination and improved box cleaning. Despite these findings, a potentially clinically significant amount of viral exposure may exist. Thorough evaluation of the risks and benefits of the aerosol box should be completed prior to use. If an aerosol box is used, a visual aid should be considered to remind practitioners how to best use and clean the box.

키워드

Airway management; Anesthesiology; Audiovisual aids; Equipment and supplies; High fidelity simulation training; Infection control

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