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Advisor(s)
Abstract(s)
Introdução – As infeções nosocomiais são um problema atual de saúde pública no mundo inteiro. A relação entre estas infeções e os departamentos de radiologia está pouco explorada, mas merece uma especial atenção devido à crescente afluência às salas de exames deste serviço. Existe uma grande pertinência em examinar os equipamentos e materiais de apoio usados em radiologia para determinar a sua colonização por agentes patogénicos. A presença destes microorganismos é grave e deve refletir-se na melhoria das práticas de desinfeção levadas a cabo pelos serviços de radiologia. Este trabalho pretende verificar se os equipamentos do departamento de radiologia são potenciais fontes de transmissão de infeções nosocomiais. Métodos – Foram recolhidas 41 amostras de quatro departamentos de radiologia de diferentes hospitais de Lisboa com zaragatoas estéreis. As amostras foram incubadas durante 18h-24h em meio de BHI e, de seguida, semeadas em MacConkey, Cetrimide e Plate Count Agar. Resultados – Nenhuma das amostras apresentou contaminação por bactérias Gram-negativas; no entanto, observou-se contaminação por bactérias Gram-positivas em 78% das culturas. Discussão – A presença de bactérias Gram-positivas demonstra que as práticas de prevenção e controlo de infeção devem ser aprimoradas. Contudo, existe uma eliminação total da contaminação por bactérias Gram-negativas, incluindo patógenos fortemente associados a infeções nosocomiais, como a Pseudomonas aeruginosa e bactérias da família das Enterobactereacea. Conclusões – Não pode ser excluída a hipótese das superfícies dos departamentos de radiologia serem consideradas potenciais fontes de transmissão de infeções nosocomiais, sendo pertinente melhorar as práticas de controlo de infeção de modo a colmatar esta problemática.
ABSTRACT - Introduction – Nosocomial Infections are a current health problem worldwide. The relationship between these infections and the radiology department is poorly explored, but it deserves special attention due to the growing number of people in need of radiological exams. There is great relevance in examining the equipment and the support material used in radiology to determine their colonization by pathogens. The presence of these microorganisms is serious and must be reflected in the improvement of disinfection practices carried out by radiology services. This work aims to Investigate if the equipment of the radiology department can be a potential source of hospital infections. Methods – Here, 41 samples of 4 radiology departments of different hospitals in Lisbon were collected with sterile swabs. These samples were incubated 18h-24h in BHI and were then transferred to Cetrimide, MacConkey, and Plate Count Agar media. Results – None of the samples showed contamination by Gram-negative bacteria, although it was seen noticeable contamination by Gram-positive bacteria in 75% of all cultures. Discussion – The presence of Gram-positive bacteria shows that the practices of prevention and control of infections can be improved. However, there is a complete elimination of all Gram-negative bacteria, which is positive, including pathogens strongly associated with hospital infections like Pseudomonas Aeruginosa and bacteria from the Enterobacteriacea family. Conclusions – It cannot be ruled out that the surfaces of radiology departments are sources of nosocomial infection transmission, and it is pertinent to improve infection control practices to solve this problem.
ABSTRACT - Introduction – Nosocomial Infections are a current health problem worldwide. The relationship between these infections and the radiology department is poorly explored, but it deserves special attention due to the growing number of people in need of radiological exams. There is great relevance in examining the equipment and the support material used in radiology to determine their colonization by pathogens. The presence of these microorganisms is serious and must be reflected in the improvement of disinfection practices carried out by radiology services. This work aims to Investigate if the equipment of the radiology department can be a potential source of hospital infections. Methods – Here, 41 samples of 4 radiology departments of different hospitals in Lisbon were collected with sterile swabs. These samples were incubated 18h-24h in BHI and were then transferred to Cetrimide, MacConkey, and Plate Count Agar media. Results – None of the samples showed contamination by Gram-negative bacteria, although it was seen noticeable contamination by Gram-positive bacteria in 75% of all cultures. Discussion – The presence of Gram-positive bacteria shows that the practices of prevention and control of infections can be improved. However, there is a complete elimination of all Gram-negative bacteria, which is positive, including pathogens strongly associated with hospital infections like Pseudomonas Aeruginosa and bacteria from the Enterobacteriacea family. Conclusions – It cannot be ruled out that the surfaces of radiology departments are sources of nosocomial infection transmission, and it is pertinent to improve infection control practices to solve this problem.
Description
Keywords
Departamento de radiologia Infeção nosocomial Bactérias Gram-positivas Bactérias Gram-negativas Infeção hospitalar Prevenção e controlo Radiology department Nosocomial infection Gram-positive bacteria Gram-negative bacteria Hospital infection Prevention and control
Citation
Ribeiro E, Neves A, Pereiro M, Estopa R. Serão os departamentos de radiologia hospitalar potenciais fontes de transmissão de infeções nosocomiais? Saúde & Tecnologia. 2020;(24):48-57.
Publisher
Instituto Politécnico de Lisboa, Escola Superior de Tecnologia da Saúde de Lisboa