Bacterial Dispersion Associated With Various Patient Face Mask Designs During Simulated Intravitreal Injections

PURPOSE: We sought to investigate bacterial dispersion with patient face mask use during simulated intravitreal injections. DESIGN: Prospective cross-sectional study. METHODS: Fifteen healthy subjects were recruited for this single-center study. Each participant was instructed not to speak for 2 min...

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Detalles Bibliográficos
Autores principales: Patel, Samir N., Mahmoudzadeh, Raziyeh, Salabati, Mirataollah, Soares, Rebecca R., Hinkle, John, Hsu, Jason, Garg, Sunir J., Regillo, Carl D., Ho, Allen C., Cohen, Michael N., Khan, M. Ali, Yonekawa, Yoshihiro, Chiang, Allen, Gupta, Omesh P., Kuriyan, Ajay E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier Inc. 2021
Materias:
Original Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7598764/
https://www.ncbi.nlm.nih.gov/pubmed/33129809
http://dx.doi.org/10.1016/j.ajo.2020.10.017
Descripción
Sumario:PURPOSE: We sought to investigate bacterial dispersion with patient face mask use during simulated intravitreal injections. DESIGN: Prospective cross-sectional study. METHODS: Fifteen healthy subjects were recruited for this single-center study. Each participant was instructed not to speak for 2 minutes, simulating a “no-talking” policy, while in an ophthalmic examination chair with an blood agar plate secured to the forehead and wearing various face masks (no mask, loose fitting surgical mask, tight-fitting surgical mask without tape, tight-fitting surgical mask with adhesive tape securing the superior portion of the mask, N95 mask, and cloth mask). Each scenario was then repeated while reading a 2-minute script, simulating a talking patient. The primary outcome measures were the number of colony-forming units (CFUs) and microbial species. RESULTS: During the “no-talking” scenario, subjects wearing a tight-fitting surgical mask with tape developed fewer CFUs compared with subjects wearing the same mask without tape (difference 0.93 CFUs [95% confidence interval 0.32-1.55]; P = .003). During the speech scenarios, subjects wearing a tight-fitting surgical mask with tape had significantly fewer CFUs compared with subjects without a face mask (difference 1.07 CFUs; P = .001), subjects with a loose face mask (difference 0.67 CFUs; P = .034), and subjects with a tight face mask without tape (difference 1.13 CFUs; P < .001). There was no difference between those with a tight-fitting surgical mask with tape and an N95 mask in the “no-talking” (P > .99) and “speech” (P = .831) scenarios. No oral flora were isolated in “no-talking” scenarios but were isolated in 8 of 75 (11%) cultures in speech scenarios (P = .02). CONCLUSION: The addition of tape to the superior portion of a patient's face mask reduced bacterial dispersion during simulated intravitreal injections and had no difference in bacterial dispersion compared with wearing N95 masks.

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