Potencial Irritativo do Lipiodoluf e Hexabrix 320 utilizados em Sialografia

As alterações vasculares do tecido conjuntivo subcutâneo de ratos, induzidas por substâncias de contraste radiográfico iodadas,, foram comparadas com as induzidas por soro fisiológico (controlo negativo) e Furacin (controlo positivo), durante a fase exsudativa do processo inflamatório. Com esse prop...

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Published in:Revista portuguesa de estomatologia, medicina dentária e cirurgia maxilofacial Vol. 48; no. 2; pp. 95 - 101
Main Authors: Filho, Halim Nagem, Nagem, Haline Drumond, Coutinho, Kennedy Queiroz, Silveira Francisconi, Paulo Afonso, Cardoso Diláscio, Mauro Lúcio
Format: Journal Article
Language:Portuguese
Published: Elsevier España 01-04-2007
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Abstract As alterações vasculares do tecido conjuntivo subcutâneo de ratos, induzidas por substâncias de contraste radiográfico iodadas,, foram comparadas com as induzidas por soro fisiológico (controlo negativo) e Furacin (controlo positivo), durante a fase exsudativa do processo inflamatório. Com esse propósito, injectaram-se, intravenosamente, na veia dorsal do pénis de ratos, 20mg/kg de peso corporal de azul de Evans e em seguida inocularam- se no tecido subcutâneo 0,1ml de cada substância a ser analisada. Após intervalo de 3 horas os animais foram sacrificados e suas peles excisadas e recortadas. As peças foram imersas imediatamente em 8ml de formamida e levadas ao banho-maria a 37°C, durante 72 horas, para remoção do corante. O líquido contendo o corante extravasado foi filtrado, analisado no espectrofotómetro (620nm). O potencial irritativo dos produtos, após análise estatística, se apresentou, em ordem decrescente da seguinte forma: Furacin (severo), Lipiodol UF e Hexabrix 320 (discreto)., Soro fisiológico (não significativo)…Baseados nas experiências realizadas, concluimos que os contrastes usados podem ser recomendados, dependendo das suas propriedades físicas a escolha para cada caso particular. Não é recomendável injectar Lipiodol UF ou Hexabrix 320 no tecido conjuntivo pelo facto de terem uma reabsorção muito lenta. The vascular changes induced in the subcutaneous connective tissue of rats, by iodinated substances for radiographic contrast, were compared with physiological serum (negative control) and Furacin (positive control), during the exudative phase of the inflammatory process. Twenty mg/kg of Evan's blue were injected intravenously in the dorsal vein of the rat penis, after which 0,1ml of each substance tested were inoculated sbcutaneously. Three hours later the animals were sacrificed and their skins were excised, cut and punched out. The pieces were immediately immersed in 8ml of formamide and taken to a double boiler for 72 hours at 37°C, to remove the dye. The liquid containing the overflowed dye was filtered, analyzed in spectrophotometer T (620nm). The ranking of the irritating potential of the products, by decreasing order was as follows: Furacin (severe) Lipiodol UF and Hexabrix 320 (moderate), Physiological Serum (nonsignificant). Based on these results, both contrasts can be recommended, their choice depending on each particular clinical case. It is not recommended to inject Lipiodol UF or Hexabrix 320 in the connective because of their very slow reabsorption.
AbstractList As alterações vasculares do tecido conjuntivo subcutâneo de ratos, induzidas por substâncias de contraste radiográfico iodadas,, foram comparadas com as induzidas por soro fisiológico (controlo negativo) e Furacin (controlo positivo), durante a fase exsudativa do processo inflamatório. Com esse propósito, injectaram-se, intravenosamente, na veia dorsal do pénis de ratos, 20mg/kg de peso corporal de azul de Evans e em seguida inocularam- se no tecido subcutâneo 0,1ml de cada substância a ser analisada. Após intervalo de 3 horas os animais foram sacrificados e suas peles excisadas e recortadas. As peças foram imersas imediatamente em 8ml de formamida e levadas ao banho-maria a 37°C, durante 72 horas, para remoção do corante. O líquido contendo o corante extravasado foi filtrado, analisado no espectrofotómetro (620nm). O potencial irritativo dos produtos, após análise estatística, se apresentou, em ordem decrescente da seguinte forma: Furacin (severo), Lipiodol UF e Hexabrix 320 (discreto)., Soro fisiológico (não significativo)…Baseados nas experiências realizadas, concluimos que os contrastes usados podem ser recomendados, dependendo das suas propriedades físicas a escolha para cada caso particular. Não é recomendável injectar Lipiodol UF ou Hexabrix 320 no tecido conjuntivo pelo facto de terem uma reabsorção muito lenta. The vascular changes induced in the subcutaneous connective tissue of rats, by iodinated substances for radiographic contrast, were compared with physiological serum (negative control) and Furacin (positive control), during the exudative phase of the inflammatory process. Twenty mg/kg of Evan's blue were injected intravenously in the dorsal vein of the rat penis, after which 0,1ml of each substance tested were inoculated sbcutaneously. Three hours later the animals were sacrificed and their skins were excised, cut and punched out. The pieces were immediately immersed in 8ml of formamide and taken to a double boiler for 72 hours at 37°C, to remove the dye. The liquid containing the overflowed dye was filtered, analyzed in spectrophotometer T (620nm). The ranking of the irritating potential of the products, by decreasing order was as follows: Furacin (severe) Lipiodol UF and Hexabrix 320 (moderate), Physiological Serum (nonsignificant). Based on these results, both contrasts can be recommended, their choice depending on each particular clinical case. It is not recommended to inject Lipiodol UF or Hexabrix 320 in the connective because of their very slow reabsorption.
Author Silveira Francisconi, Paulo Afonso
Cardoso Diláscio, Mauro Lúcio
Filho, Halim Nagem
Nagem, Haline Drumond
Coutinho, Kennedy Queiroz
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Cites_doi 10.1590/S0103-06631997000200011
10.1016/S0009-9260(05)80899-2
10.1177/028418516900800603
10.1590/S1517-74912003000200002
10.1016/S1079-2104(99)70096-X
10.1016/0030-4220(84)90190-7
10.1067/moe.2001.117300
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Keywords Biocompatibility
Contraste radiográfico
Biocompatibilidade
Sialografia
Sialography
Radiographic contrasts
Language Portuguese
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SubjectTerms Biocompatibilidade
Biocompatibility
Contraste radiográfico
Radiographic contrasts
Sialografia
Sialography
Title Potencial Irritativo do Lipiodoluf e Hexabrix 320 utilizados em Sialografia
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