Gupta, R and Pandey, K and Thomas, R and Basu, S and Shetty, B and Shetty, R and Roy, AS (2021) Propensity of aerosol and droplet creation during oculoplastic procedures: A risk assessment with high-speed imaging amidst COVID-19 pandemic. In: Indian Journal of Ophthalmology, 69 (3). pp. 734-738.
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Abstract
Purpose: The study uses principles of liquid and gas mechanics to verify and quantify the generation of aerosols in oculoplastic procedures, namely surgery using a scalpel, electrosurgical device, and a mechanized drill. Methods: Surgical techniques were performed ex vivo using the electrosurgical device, scalpel, and mechanized drill on the muscle and bone of commercially available chicken. The liquid and gas dynamics were observed using a high-speed high-resolution Photron SA5 camera (0.125 to 8 ms temporal resolution, 0.016 to 0.054 mm/pixel spatial resolution) and stroboscopic lighting (Veritas 120 E LED Constellation). The analysis was performed using in-house algorithms and ImageJ software. Results: The use of a mechanized drill at 35000 rpm and a 3 mm fluted burr generated aerosol with particle size 50 to 550 microns with a spread of 1.8 m radius. Surgical smoke was generated by an electrosurgical device in both cutting and coagulation modes. Dispersion of the smoke could be controlled significantly by the use of suction, mean smoke spread ratio being 0.065 without suction and 0.002 with use of suction within 2 cm. Conclusion: The quantification of the aerosol generation will help surgeons take practical decisions in their surgical techniques in the pandemic era.
| Item Type: | Journal Article |
|---|---|
| Publication: | Indian Journal of Ophthalmology |
| Publisher: | Wolters Kluwer Medknow Publications |
| Additional Information: | The copyright for this article belongs to the Authors. |
| Keywords: | adverse event; aerosol; comorbidity; diagnostic imaging; disease transmission; eye disease; eye surgery; human; India; pandemic; prevention and control; procedures; protective equipment; reconstructive surgery; risk assessment, Aerosols; Comorbidity; COVID-19; Diagnostic Imaging; Eye Diseases; Humans; India; Infectious Disease Transmission, Patient-to-Professional; Ophthalmologic Surgical Procedures; Pandemics; Personal Protective Equipment; Reconstructive Surgical Procedures; Risk Assessment; SARS-CoV-2 |
| Department/Centre: | Division of Mechanical Sciences > Mechanical Engineering |
| Date Deposited: | 06 Jun 2023 09:32 |
| Last Modified: | 06 Jun 2023 09:32 |
| URI: | https://eprints.iisc.ac.in/id/eprint/81801 |
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