Influence of metal pump corrosion on the contamination of terminal dialysis fluid by <i>Pseudomonas aeruginosa</i>

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  • Nakamura Minoru
    Manda Memorial Hospital Department
  • Okayama Masaya
    Manda Memorial Hospital Department
  • Kimura Kazuyuki
    Department of Clinical Engineering, Faculty of Health Sciences, Hokkaido University of Science
  • Shibata Haruaki
    Manda Memorial Hospital Department
  • Hagiwara Seiya
    Department of Nephrology and Diabetes, Manda Memorial Hospital
  • Nawa Tomoyasu
    Department of Nephrology and Diabetes, Manda Memorial Hospital
  • Sugawara Toshitugu
    Department of Clinical Engineering, Faculty of Health Sciences, Hokkaido University of Science
  • Kuroda Satoshi
    Department of Clinical Engineering, Faculty of Health Sciences, Hokkaido University of Science
  • Indo Tomokazu
    Department of Clinical Engineering, Faculty of Health Sciences, Hokkaido University of Science

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Other Title
  • 透析用監視装置内金属腐食ポンプの緑膿菌汚染が末端透析液に与える影響
  • トウセキヨウ カンシ ソウチ ウチキンゾク フショク ポンプ ノ リョクノウキン オセン ガ マッタン トウセキエキ ニ アタエル エイキョウ

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Abstract

<p>We previously detected bacterial contamination in the metal parts of a degassing pump of a dialysis console, which exhibited corrosion. In this study, we compared the numbers of Pseudomonas aeruginosa bacteria in dialysis fluid that had been incubated with or without corroded metal degassing pump parts. A significantly higher number of P. aeruginosa bacteria were detected in the dialysis fluid incubated with corroded metal parts than in the dialysis fluid incubated with uncorroded metal parts (p<0.05). Furthermore, when metal pumps with or without corrosion were installed in a central dialysis fluid delivery system a significantly higher number of P. aeruginosa bacteria were detected in the terminal dialysis fluid from the corroded pump than in the terminal dialysis fluid from the uncorroded pump (p<0.01). Dialysis pump surface corrosion might lead to bacterial contamination of terminal dialysis fluid.</p>

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