Secagem de endoscópios e sua implicação na contaminação microbiana: quão seguro é o uso?
DOI:
https://doi.org/10.5327/Z1414-44251053Palavras-chave:
Endoscópio gastrointestinal, Controle de infecção, Segurança do paciente, Armazenamento de produtos, Contaminação de equipamentosResumo
Objective: To evaluate the drying practices employed in endoscopy facilities and determine the occurrence of microbiological growth in ready-to-use equipment. Methods: This is a cross-sectional study with the evaluation of the drying step of endoscopes in eight services of gastrointestinal endoscopy. The processing of 22 gastrointestinal endoscopes was monitored, and a microbiological evaluation was carried out in 60 endoscope channels after high-level disinfection and subsequent storage. Results: External drying was not carried out in 50.0% (11/22) of equipment after cleaning, and 27.2% (6/22) did not undergo internal drying of the channels. Contamination was detected in 21.9% (7/32) of the samples of stored endoscope channels, with microbial loads ranging from 2.0x101 to 2.5x105 CFU/mL. Furthermore, we identified microbial growth in 32.1% (9/28) of the channels after high-level disinfection, with microbial loads ranging from <101 to a maximum of 1.3x103 CFU/mL. Pseudomonas sp. accounted for 50.0% (6/12) of isolated microorganisms found in endoscope channels. Conclusion: The presence of infectious agents associated with inadequate practices, especially during the drying step, evidently contributes to the maintenance of microbial contamination in endoscopes, posing risks to subsequent patients.
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