Reducing visible aerosol generation during phacoemulsification in the era of Covid-19

dc.creatorDarcy, Kieren
dc.creatorElhaddad, Omar
dc.creatorAchiron, Asaf
dc.creatorKeller, Johannes
dc.creatorLeadbetter, Duncan
dc.creatorTole, Derek
dc.creatorLiyanage, Sidath
dc.date.accessioned2020-07-14T18:48:20Z
dc.date.available2020-07-14T18:48:20Z
dc.date.created2020-06-26
dc.description.abstractenglishObjective To assess potential methods of reducing visible aerosol generation during clear corneal phacoemulsification surgery in the era of Covid-19. Methods Aerosol generation during phacoemulsification was assessed using a model comprising a human cadaveric corneoscleral rim mounted on an artificial anterior chamber. Typical phacoemulsification settings were used and visible aerosol production was recorded using high-speed 4K camera. Aerosolisation was evaluated under various experimental settings: Two different phacoemulsification tip sizes (2.2, 2.75 mm), varying levels of corneal moisture, the use of suction and blowing air in the surgical field, the use of hydroxypropyl methylcellulose (HPMC) coating of the cornea with a static and moving tip. Results This model demonstrates visible aerosol generation during phacoemulsification with a 2.75-mm phacoemulsification tip. No visible aerosol was noted with a 2.2-mm tip. The presence of visible aerosol was unrelated to corneal wetting. Suction in close proximity to the aerosol plume did not impact on its dispersion. Blowing air redirected the aerosol plume toward the ocular surface. Visible aerosol production was abolished when HPMC was used to coat the cornea. This effect lasted for an average of 67 ± 8 s in the static model. Visible aerosol generation was discerned during movement of the 2.2-mm tip toward the corneal wound. Conclusions We demonstrate visible aerosol production in the setting of a model of clear corneal phacoemulsification. Visible aerosol can be reduced using a 2.2-mm phacoemulsification tip and reapplying HPMC every minute during phacoemulsification.spa
dc.format.extent6 páginasspa
dc.format.mimetypeapplication/pdfspa
dc.identifier.doihttps://doi.org/10.1038/s41433-020-1053-3spa
dc.identifier.issn1476-5454 (online)spa
dc.identifier.otherhttps://www.nature.com/articles/s41433-020-1053-3spa
dc.identifier.urihttps://hdl.handle.net/20.500.12010/10503
dc.publisherEyeeng
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.sourcereponame:Expeditio Repositorio Institucional UJTLspa
dc.sourceinstname:Universidad de Bogotá Jorge Tadeo Lozanospa
dc.subjectphacoemulsificationspa
dc.subjectaerosolspa
dc.subject.lembSíndrome respiratorio agudo gravespa
dc.subject.lembCOVID-19spa
dc.subject.lembSARS-CoV-2spa
dc.subject.lembCoronavirusspa
dc.titleReducing visible aerosol generation during phacoemulsification in the era of Covid-19spa
dc.type.hasversioninfo:eu-repo/semantics/acceptedVersionspa
dc.type.localArtículospa

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