シルバーコーティングされた内膜管と呼吸器関連肺炎の発生率: NASCENTランダム化試験
Marin H Kollef1, Bekele Afessa, Antonio Anzueto
1Washington University School of Medicine, 660 S Euclid Ave, St Louis, MO 63110, USA. mkollef@im.wustl.edu
JAMA
|August 21, 2008
まとめ
銀で覆われた内経管は,呼吸器関連肺炎 (VAP) の発生率を大幅に減らし,機械呼吸器を必要とする患者のVAP発症を遅らせました. この介入は,VAP予防のための有望な戦略を提供します.
科学分野:
- クリティカルケア・メディシン
- 感染症 感染症は感染症です.
- バイオマテリアル科学 バイオマテリアル科学
背景:
- 呼吸器関連肺炎 (VAP) は,入院患者の罹病率の重要な原因です.
- バクテリアのコロニー化と内管のバイオフィルム形成は,VAPの発達に寄与する.
- バクテリアの粘着を抑制することによってVAPを軽減するために,新しい銀塗りの内皮管が開発されました.
研究 の 目的:
- 微生物学的に確認されたVAPの発生率を減らすための銀塗りの内皮管の有効性を評価する.
- 銀塗りのチューブがVAP発症時間,機械呼吸器の持続時間,患者のアウトカムに与える影響を評価する.
主な方法:
- 54の北米のセンターで予見性,ランダム化,シングルブラインド,制御試験が行われました.
- 機械呼吸器を24時間以上必要とする2003人の成人患者は,銀塗りの内膜管または未塗りの内膜管を受給するためにランダムに割り当てられました.
- VAPの発生率は,ブロンコアルベオラ洗浄液の定量培養 (≥10^4 CFU/mL) によって決定されました.
主要な成果:
- シルバーコーティングされた内膜管群は,非コーティングされたグループと比較してVAP発生率 (4.8%対7.5%,P=.03) の統計的に有意な減少を示しました.
- シルバーコーティングチューブ (P=.005) を受けた患者では,VAPの発症の有意な遅延が観察されました.
- グループ間の挿管,ICU滞在,入院,死亡率,または有害事象の持続時間において有意な違いは見つかりませんでした.
結論:
- シルバーコーティングされた内膜管は,機械呼吸器を使用している患者のVAPの発生率を大幅に低下させます.
- 銀で覆われた内皮管の使用は,VAPの発生を遅らせます.
- この技術は,集中治療施設でのVAP予防戦略の実行可能な選択肢を提供します.
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