ArticleScientific reports2025
Exploring the efficacy of combination of point-of-use filters and peracetic acid disinfection in reducing total viable counts in final rinse water of endoscopes.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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8 authors.
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Abstract
The final rinse water pollution of endoscopes in medical institutions is a severe growing problem, posing a latent risk to nosocomial infection. This study aimed to explore the efficacy of combination of point-of-use (POU) filters and peracetic acid (PAA) disinfection in reducing total viable counts (TVCs) in final rinse water of endoscopes. Eight final rinse water faucets of endoscope centers were randomly selected and none of the faucets had POU filters prior to the study. Four faucets were assigned to experimental group and had POU filters installed, the other four faucets were set as control group and did not have POU filters installed. During monitoring, both the experimental and control groups were used 0.3% PAA to disinfect the purified water system twice. TVCs in final rinse water was monitored weekly for 13 weeks. 231 final rinse water samples were collected, of which 111 and 120 samples were in the experimental and control groups, respectively. The mean TVCs and positive rate of samples for experimental group were both significantly lower than that of control group [10 vs. 50,450 colony-forming units (CFU)/100 mL, and 27.7% vs. 98.3%, P < 0.001]. The TVCs in control group was from 2.0 × 10
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