Evaluation of the aerosol generating potential of endoscopic dacryocystorhinostomy

Autor: Darren A Chen, Gary J. Lelli, Mark Lee, Ashutosh Kacker
Rok vydání: 2021
Předmět:
Zdroj: Laryngoscope Investigative Otolaryngology, Vol 6, Iss 5, Pp 948-951 (2021)
Laryngoscope Investigative Otolaryngology
ISSN: 2378-8038
DOI: 10.1002/lio2.639
Popis: Purpose The COVID‐19 pandemic gave rise to renewed concerns of the transmission risks posed by surgeries on sites of high viral colonization such as the nasopharynx. Endoscopic dacryocystorhinostomy (DCR) involves the creation of a new tear duct from the lacrimal sac to the nasal cavity. The purpose of this project is to determine if endoscopic DCR is an aerosol generating procedure (AGP). Methods An optical particle sizer (OPS) was used to intraoperatively quantify aerosol concentrations during four cases of endoscopic DCR. The OPS sampled the air once every 60 seconds throughout the operations. The time of important operative steps were documented and correlated with OPS readings. Particle concentrations during each major surgical step were compared to baseline readings by the Mann Whitney U Test. Results There were statistically significant increases in median particle concentrations during laryngeal mask airway intubations for both particles 0.3 to 5.0 μm and >5.0 μm (P
An optical particle sizer quantified aerosols during key steps of endoscopic 42 dacryocystorhinostomy, showing increases in 0.3‐5.0 μm and >5.0 μm particles during 43 intubation, but no increases in particles associated with any of the surgical steps.
Databáze: OpenAIRE