COMPARISON of 20-, 23-, and 25-GAUGE AIR INFUSION FORCES

Página do item simplificado
dc.contributor.authorMachado, Leonardo Martins [UNIFESP]
dc.contributor.authorMagalhaes, Octaviano [UNIFESP]
dc.contributor.authorMaia, Mauricio [UNIFESP]
dc.contributor.authorRodrigues, Eduardo B. [UNIFESP]
dc.contributor.authorFarah, Michel Eid [UNIFESP]
dc.contributor.authorIsmail, Kamal A. R.
dc.contributor.authorMolon, Leandro
dc.contributor.authorOliveira, Danilo A.
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2016-01-24T14:17:25Z
dc.date.available2016-01-24T14:17:25Z
dc.date.issued2011-11-01
dc.description.abstractPurpose: To determine and compare 20-, 23-, and 25-gauge retinal infusion air jet impact pressure (force per unit area) in an experimental setting.Methods: Experimental laboratory investigation. Infusion cannulas were connected to a compressed air system. A controlled valve mechanism was used to obtain increasing levels of infusion pressure. Each infusion tube was positioned in front of a manual transducer to measure force. Impact pressure was calculated using known formulas in fluid dynamics.Results: the 20-gauge infusion jet showed similar impact pressure values compared with the 23-gauge infusion jet. Both showed higher levels than the 25-gauge infusion jet. This was because of the smaller jet force for the 25-gauge system.Conclusion: in this experimental study, both the 23- and the 20-gauge air infusion jet showed higher impact pressure values compared with the 25-gauge air infusion jet. This could be of concern regarding air infusion during 23-gauge vitrectomy since retinal damage has been shown in standard-gauge surgeries. RETINA 31:2002-2006, 2011en
dc.description.affiliationUniversidade Federal de São Paulo, Dept Ophthalmol, São Paulo, Brazil
dc.description.affiliationUniv Estadual Campinas, Fac Mech Engn, Dept Ophthalmol, São Paulo, Brazil
dc.description.affiliationUniv Estadual Campinas, Fac Mech Engn, Dept Therm & Fluid Engn, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Ophthalmol, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent2002-2006
dc.identifierhttp://dx.doi.org/10.1097/IAE.0b013e318211164d
dc.identifier.citationRetina-the Journal of Retinal and Vitreous Diseases. Philadelphia: Lippincott Williams & Wilkins, v. 31, n. 10, p. 2002-2006, 2011.
dc.identifier.doi10.1097/IAE.0b013e318211164d
dc.identifier.issn0275-004X
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/34208
dc.identifier.wosWOS:000296558500005
dc.language.isoeng
dc.publisherLippincott Williams & Wilkins
dc.relation.ispartofRetina-the Journal of Retinal and Vitreous Diseases
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectvitrectomyen
dc.subject23 gaugeen
dc.subject25 gaugeen
dc.subjectinfusionen
dc.subjectfluid-air exchangeen
dc.subjectmacular holeen
dc.titleCOMPARISON of 20-, 23-, and 25-GAUGE AIR INFUSION FORCESen
dc.typeinfo:eu-repo/semantics/article
Arquivos
Coleções
EPM - Artigos