Endoscopic skull base and transoral surgery during <scp>COVID</scp>‐19 pandemic: Minimizing droplet spread with <scp>negative‐pressure</scp> otolaryngology viral isolation drape
Abel P. David, Nicole T. Jiam, Joshua M. Reither, José Gurrola, Manish K. Aghi, Ivan H. El‐Sayed
Abstract
BACKGROUND: The coronavirus disease (COVID-19) pandemic has raised concern of transmission of infectious organisms through aerosols formation in endonasal and transoral surgery. METHODS: Retrospective review. We introduce the negative-pressure otolaryngology viral isolation drape (NOVID) system to reduce the risk of aerosol. NOVID consists of a plastic drape suspended above the patient's head and surgical field with a smoke evacuator suction placed inside the chamber. RESULTS: Four patients underwent endonasal (4) and endo-oral surgery (1). Fluorescein was applied to the surgical field. Black light examination of fluorescein-treated operative fields revealed minimal contamination distant to the surgical field. In two prolonged cases with high-speed drilling, droplets were identified under the barrier and on the tip of the smoke evacuator. Instruments and cottonoids appeared to be a greater contributor to field contamination. CONCLUSIONS: Negative-pressure aspiration of air under a chamber barrier, which appears to successfully keep aerosol and droplet contamination to a minimum.