超声波内镜和常规的微生物监测 - - 在再加工的另一个关键设备
A Mueller1, B Chakrakodi1, M-T Meier1
1Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
The Journal of hospital infection
|October 11, 2025
概括
对胃肠道内镜的常规微生物学监测至关重要. 与其他类型相比,超声波内镜的污染率较高,表明需要有针对性的再加工改进.
科学领域:
- 医学微生物学 医学微生物学
- 感染控制 感染控制
- 胃肠病学 胃肠病学
背景情况:
- 建议定期对胃肠道内镜进行微生物学监测,以确保有效的再加工.
- 保持内镜卫生对于患者的安全和预防与医疗相关的感染至关重要.
研究的目的:
- 根据内镜类型评估胃肠内镜污染的差异.
- 评估当前再加工标准在防止微生物污染方面的有效性.
主要方法:
- 在再处理后,对来自各种胃肠内镜的437个样本进行微生物学分析.
- 在羊血上进行化,通过MALDI-TOF MS或其他方法进行鉴定,并计算殖民地形成单位 (cfu).
- 根据特定的微生物存在 (≥20 cfu/20 mL或特定的病原体) 定义的污染,而不考虑cfu数量.
主要成果:
- 总体污染率为2.5% (11/437个样本).
- 污染因内镜类型的显著变化:超声内镜 (20.0%),结肠镜 (1.4%),胃镜 (0.5%),十二指镜 (0%) 和肠镜 (0%) (P < 0.001).
- 超声波内镜显示出污染样本的比例最高.
结论:
- 一小部分的胃肠道内镜被污染了.
- 在内镜类型之间存在污染率的显著差异.
- 超声波内镜在污染方面表现最差,这表明需要加强监测和再处理协议.
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