トラウマ患者の感染を引き起こす細菌や真菌の時間配列
Frederique J C van Eerten1, Miquel B Ekkelenkamp2, Joost D J Plate3
1Department of Trauma Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.
Trauma surgery & acute care open
|August 27, 2025
まとめ
トラウマ患者の感染は 病原体の配列を示し 時間の経過とともに 普通の微生物から 病院で感染した微生物へと変化します このパターンは 長期にわたる免疫不均衡が 深刻な怪我の数週間後の感染症に 寄与することを示唆しています
科学分野:
- 感染症
- トラウマ 手術
- 免疫学
背景:
- 免疫力が低下した集中治療室 (ICU) の患者は病原体による感染に敏感です.
- 重度の傷を負った患者は同様の免疫機能低下を経験し,感染のリスクが長くなります.
- 抗生物質によって選択された 病院で得られた病原体は これらの脆弱な患者で 感染症を引き起こす可能性があります
研究 の 目的:
- 重傷患者の感染のタイミングを 調べるため
- トラウマ後の様々な時点での 感染症を引き起こす病原体のスペクトルを特定する
主な方法:
- レベル1のトラウマセンターでの遡及コホート研究 (2013-2022年).
- 重度のトラウマでICUで48時間以上滞在した患者も含まれています.
- 文書化された感染 (CDC基準) と病原体,トラウマ後の日数で記録する.
主要な成果:
- 109/572重傷の患者は 感染症の合併症を発症した.
- 病原体の明確な時間配列が観察されました.
- 初期の感染 (40日前) は, *Staphylococcus aureus*, *Enterococcus* spp. と CoNSに関連しており,後の感染 (60日後) は, *Klebsiella* spp., *Candida* spp., *Enterobacter* spp. と *Pseudomonas* spp. と関連していた.
結論:
- 重傷を負った患者は 感染を引き起こす病原体の テンポラルシーケンスを示します
- 初めは共生微生物が優勢で,その後は病院で感染した病原体へと変化する.
- この配列は,先天的な免疫システムの持続的な不均衡が,遅発の感染を促進するという仮説を裏付けている.
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