descontaminação prévia de materiais médico-cirúrgicos: estudo da eficácia de desinfetantes químicos e água e sabão descontaminación prévia de los instrumentos médico-quirúrgicos: estudio de la eficacia de desinfectantes químicos y agua y jabón previous descontamination of the medical surgical materials: study of the efficiency of chemical disinfectants and water and soap
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Abstract
Estudio experimental, dirigido a comparar la eficacia de la descontaminación previa de instrumentos médico-quirúrgicos por el uso de desinfectantes químicos y de agua, jabón y acción mecánica, y vereificar la interferencia de la materia orgánica en ese procedimento. Se utilizaron como vehículos, pinzas quirúrgicas contaminadas con Staphylococcus aureus ATCC-6538, Salomella choleras suis ATCC-10708 y Pseydomonas aeruginosa ATCC-15423, en presencia y ausencia de materia orgánica (suero fetal bovino, 10%). Se emplearon cinco tratamientos: glutaraldeído 2%, hipoclorito de sodio 1%, peróxido de hidrógeno 6%, alcohol 70% y agua, jabón y acción mecánica; con ocho repeticiones, en un total de 480 observaciones. En las condiciones probadas, los desinfectantes fueron eficaces en la descontaminación previa de instrumentos médico-quirúrgicos y poco inactivados por la materia orgánica. La limpieza mecánica con agua y jabón, presentó redución de microorganismos a niveles considerados adecuados para descontaminación previa.
In this experimental study we compared the previous descontamination efficacy of the medical surgical materials by the use of chemical disinfectants and the mechanical cleaning with water and soap, as well as verified the organic material interference in these procedures. To carry out this study, we used surgical pincers under contamination with: Staphylococcus aureus ATCC-6538, Salmonella cholerae suis ATCC-10708, and Pseudomonas aeruginosa ATCC-15442 in presence and absence of organic matter (fetal bovine serum). The following treatments: glutaraldehyde 2%, sodium hypochlorite 1%, hydrogen peroxide 6%, alcohol 70% and the mechanical cleaning with water and soap were compared with eight repetitions in a total of 480 observations. In the described conditions, the disinfectants had a good efficacy in the previous descontamination of the medical surgical materials and a less inativation by the organic material. The mechanical cleaning with water and soap showed a reduction of the microrganism to safe levels, considered adequate for previous descontamination.
| Reference Key |
souza1998revistadescontaminao
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| Authors | ;Adenícia Custódia Silva e Souza;Milca Severino Pereira;Márcia Alves Vasconcelos Rodrigues |
| Journal | acta paediatrica (oslo, norway : 1992) |
| Year | 1998 |
| DOI |
10.1590/S0104-11691998000300012
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