Filamentous fungi in water used in hemodialysis treatment: a persistence challenge for health surveillance: Vigil Sanit Debate, Rio de Janeiro, 2024, v.12: e02236 | Published on: 19/04/2024
Introduction: Fungi usually are resistant to disinfection and has pathogenic potential; however, they are not legally controlled in hemodialysis water (HW). Objective: Filamentous fungi (FF) were evaluated in HW from a tertiary hospital in southeast of São Paulo state (Brazil) and is a reference med...
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Veröffentlicht in: | Vigilância Sanitária em Debate 2024-04, p.1-5 |
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Sprache: | eng |
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Zusammenfassung: | Introduction: Fungi usually are resistant to disinfection and has pathogenic potential; however, they are not legally controlled in hemodialysis water (HW). Objective: Filamentous fungi (FF) were evaluated in HW from a tertiary hospital in southeast of São Paulo state (Brazil) and is a reference medical center providing service to millions of people every year. Method: A total of 84 water samples were collected in seven hydraulic system points during a period of one year and FF was identified by macroscopic and microscopic features. Results: FF were detected in all points ranging from 1 to 334 CFU/100 mL. Nine genera along the hydraulic system were identified, including Acremonium, Alternaria, Aspergillus, Beltrania, Bipolaris, Cladosporium, Exophiala, Fusarium, and Penicillium. Conclusions: Most fungi are ubiquitous and some cause human infection and mycotoxins producers. The various genera found reveal possible failures in treatment and distribution system, either through inadequate hygiene practices or infusion of these microorganisms into the pipes. FF detection is needed bearing mind immunological vulnerability of patients under hemodialysis treatment requiring continuous health surveillance actions.
Los hongos suelen ser resistentes a la desinfección y tienen potencial patógeno; sin embargo, no están controlados legalmente en el agua de hemodiálisis (AH). Se evaluaron los hongos filamentosos (HF) en el agua de hemodiálisis de un hospital terciario del sudeste del estado de São Paulo (Brasil), un centro médico de referencia que atiende a millones de personas cada año. Se recogieron 84 muestras de agua en siete puntos del sistema hidráulico durante un período de un año y se identificaron los FF mediante características macroscópicas y microscópicas. Se detectaron FF en todos los puntos, con un rango de 1 a 334 UFC/100mL. Se identificaron nueve géneros a lo largo del sistema hidrológico, entre ellos Acremonium, Alternaria, Aspergillus, Beltrania, Bipolaris, Cladosporium, Exophiala, Fusarium y Penicillium. La mayoría de los hongos son ubicuos y algunos causan infecciones humanas y producen micotoxinas. Los diversos géneros encontrados revelan posibles fallos en el sistema de tratamiento y distribución, ya sea por prácticas de higiene inadecuadas o por infusión de estos microorganismos en las tuberías. La detección de HF es necesaria habida cuenta de la vulnerabilidad inmunológica de los pacientes sometidos a tratamiento de hemodiálisis, que requiere acci |
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ISSN: | 2317-269X 2317-269X |
DOI: | 10.22239/2317-269x.02236 |