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The FEES box: A novel barrier to contain particles during aerosol-generating procedures #MMPMID33460980
Ganann MG; Kitila M; Patel R; Brook CD; Pisegna JM
Am J Otolaryngol 2021[May]; 42 (3): 102888 PMID33460980show ga
PURPOSE: Due to the COVID-19 pandemic, aerosol-generating procedures (AGPs) such as flexible endoscopic evaluation of swallowing (FEES) have been deemed high-risk and in some cases restricted, indicating the need for additional personal protective equipment. The aim of this study was to erect and study a protective barrier for FEES. MATERIALS AND METHODS: A PVC cube was constructed to fit over a patient while allowing for upright endoscopy. A plastic drape was fitted over the cube, and the protective barrier was subsequently named the "FEES Box." Three different particulate-generating tasks were carried out: sneezing, coughing, and spraying water from an atomizer bottle. Each task was completed within and without the FEES Box, and particulate was measured with a particle counter. The average particles/L detected during the three tasks, and baseline measurements, were statistically compared. RESULTS: Without the FEES Box in place, the sneezing and spraying tasks resulted in a statistically significant increase in particles above baseline (p < 0.001 and p = 0.004, respectively); coughing particulate never reached levels significantly higher than baseline (p = 0.230). With use of the FEES Box, there was no statistically significant increase in particles above baseline in any of the three tasks. CONCLUSION: The FEES Box effectively contained particles generated during sneezes and an atomizer spray. It would also likely mitigate coughing particulate, but coughing did not generate a significant increase in particles above baseline. Further research is warranted to test the efficacy of the FEES Box in containing particulate matter during a complete FEES procedure.
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Am+J+Otolaryngol 2021 ; 42 (3): 102888
