貯蔵キャビネットの設計と,長い内視鏡に対する感染予防の影響
Daisuke Ohki1, Miyuki Mizoguchi2, Keigo Iwazaki3
1Department of Infection Control and Prevention, The University of Tokyo Hospital, Japan; Department of Gastroenterology, Graduate School of Medicine, the University of Tokyo, Japan.
American journal of infection control
|September 3, 2025
まとめ
エンドスコップを適切に保管することは,感染制御に不可欠です. 活性乾燥キャビネットでの完全な垂直スペンションは,内視鏡のチャネルにおける水分と細菌の汚染を大幅に減少させました.
科学分野:
- 医学微生物学
- 感染対策
- バイオメディカルエンジニアリング
背景:
- 再処理後の内視管の不十分な乾燥は,微生物の増殖を促進し,感染症の危険性をもたらします.
- この研究では,異なる内視鏡保管キャビネットと方法が残留水分と細菌汚染に及ぼす影響を調査しています.
研究 の 目的:
- エンドスコップの様々な保存方法と組み合わせたアクティブおよびパッシブ乾燥キャビネットの有効性を評価する.
- 保存条件が,内視管内の残留水分と細菌の増殖に及ぼす影響を評価する.
主な方法:
- EN-580Tの内視鏡は,アクティブ乾燥キャビネット (TJ-908S,TJ-804S) とパッシブ乾燥キャビネット (TM-804S) に保管されていました.
- 収納構成には,完全垂直のサスペンション,部分的なサスペンション,およびループされた収納が含まれています.
- 残留水分は24時間および48時間後に定量化され,貯蔵後にPseudomonas aeruginosaによる細菌汚染が評価されました.
主要な成果:
- TJ-908Sのキャビネットは,他の条件 (278.5518.7 μL) に比べて,残留水分 (17.623.9 μL) が著しく低いことを示した.
- TJ-908Sに保存された内視鏡からの細菌培養は最小の成長を示した.
- パッシブ乾燥キャビネット (TM-804S) やTJ-804Sに部分またはループ方式で保存された内視鏡は,細菌数が高く,100CFUを超えるものもありました.
結論:
- エンドスコープキャビネットの設計と保存方法は,乾燥効率と細菌の増殖に重大な影響を及ぼします.
- 活性乾燥キャビネット内の完全な垂直スペンションは,汚染のリスクを軽減し,内視鏡再処理結果を高めるための最も効果的な方法であるようです.
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