artigoa02v70n3

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295 REVISTA BRASILEIRA DE OTORRINOLARINGOLOGIA 70 (3) PARTE 1 MAIO/JUNHO 2004 http://www.sborl.org.br / e-mail: [email protected] Effect of lubricants on the integrity of the Foley catheter and their implications in nasal packing for epistaxis Resumo / Summary O tamponamento nasal para epistaxe é comumente realizado com gaze lubrificada e sonda de Foley. O balonete de Foley, de látex, pode ser dissolvido pela vaselina ou parafina; entretanto, estes são excipientes de várias po- madas e cremes. Objetivo: Avaliar o efeito de potenciais lubrificantes sobre a integridade da sonda de Foley. For- ma de estudo: Experimental. Material e Método: Balonetes de 80 sondas foram eqüitativamente distribuí- dos e mantidos sob tração em contato com um dos seguin- tes produtos: duas pomadas, três cremes, um gel, vaselina e gaze seca, e inspecionados a cada 24 horas por cinco dias. Os lubrificantes foram testados quanto a hidrossolubi- lidade. Resultados: Vinte balonetes romperam-se, dos grupos vaselina e uma pomada. Os produtos não associa- dos à degeneração da sonda mostraram-se hidrossolúveis, a despeito da presença de petrolato. Discussão : Conjectura-se que a gaze do tampão nasal anterior com lubrificante hidrofóbico contendo petrolato, justaposto ao balonete de Foley, pode lesá-lo. Conclusões: Conside- rando-se apenas a inocuidade à sonda de Foley, os cremes e a pomada Furacin ® poderiam ser indicados para lubrificar a gaze do tampão nasal anterior associado ao balonete de Foley. Nossos resultados sugerem que cremes, pomadas e géis hidrossolúveis preservam a integridade da sonda de Foley, ainda que contenham derivados do petróleo. Fernando P. Gaspar-Sobrinho 1 , Antônio C. Esperidião 2 , Hélio A. Lessa 3 Efeito de lubrificantes sobre a integridade da sonda de Foley e implicações no tamponamento nasal para epistaxe 1 Mestrando pelo Curso de Pós-graduação em Medicina e Saúde da Faculdade de Medicina da Universidade Federal da Bahia. Médico da Emergência Otorrinolaringológica do Hospital Geral do Estado. 2 Professor Adjunto-doutor do Departamento de Física Geral do Instituto de Física da Universidade Federal da Bahia. 3 Professor Adjunto-doutor do Departamento de Cirurgia da Faculdade de Medicina da Universidade Federal da Bahia e Chefe do Serviço de Otorrinolaringologia do Hospital Universitário Prof. Edgard Santos. Trabalho realizado pelo Serviço de Otorrinolaringologia do Hospital Universitário Prof. Edgard Santos da Faculdade de Medicina da Universidade Federal da Bahia e Laboratório de Projetos e Modelos do Departamento de Física Geral do Instituto de Física da Universidade Federal da Bahia. Endereço para correspondência: Fernando P. G. Sobrinho, Cd. Rec. dos Pássaros, R3, B29-A, Ap.301, CEP.: 41150-050 - Salvador-Ba. Tel(0xx71): 257-0226 E-mail: [email protected] / [email protected]. Artigo recebido em 10 de março de 2004. Artigo aceito em 26 de março de 2004. Nasal packing for epistaxis is usually carried out using lubricated gauze and a Foley catheter. Lubricants such as Vaseline or paraffin can dissolve the Foley balloon of latex; however, they are excipients of various ointments and creams. Aim: To evaluate the effect of potential lubricants on the Foley catheter. Study Design: Experimental. Material and Method: Balloons from eighty Foley catheters were distributed into groups of equal size and kept under traction in contact with one of eight different products: two ointments, three creams, one gel, Vaseline and dry gauze. The balloons were inspected once every 24 hours for five days. The lubricants were tested regarding hydrosolubility. Results: Twenty balloons ruptured, all of them in the Vaseline group or in the group of one of the ointments. The products that did not damage the latex balloon were soluble in water despite the petrolatum excipient. Discussion: It is conjectured that hydrophobic lubricant contained petrolatum used to lubricate the gauze of nasal packing may damage the Foley catheter when in close contact with it. Conclusion: The creams tested in this study, as well as the Furacin ® ointment, may be suggested as suitable for use as lubricants of the gauze used in the anterior nasal packing associated with the Foley balloon as they cause no deterioration to the nasal balloon. Our results suggest that hydro soluble creams, ointments and gels preserve to Foley catheter integrity although contained petroleum derivatives in excipient. Palavras-chave: sonda de Foley, parafina, lubrificante, epistaxe. Key words: Foley catheter, paraffin, lubricant, epistaxis. ORIGINAL ARTICLE ARTIGO ORIGINAL ««««« Rev Bras Otorrinolaringol. V.70, n.3, 295-9, mai./jun. 2004

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