在症状重复检测后,从 Clostridioides difficile 殖民 (NAAT+/毒素-) 到感染 (毒素+) 的进展的危险因素
Sophia Chang1, Nicholas Turner2,3, Michael Yarrington2,3
1Duke University School of Medicine, Durham, NC, USA.
Infection control and hospital epidemiology
|December 19, 2025
概括
持续使用高风险抗生素显著增加了从克洛斯特里迪奥伊德困难菌种殖民到感染 (CDI) 的风险. 这凸显了针对殖民患者的针对性抗生素管理的必要性,以防止CDI的发展.
科学领域:
- 传染性疾病 传染性疾病
- 临床微生物学 临床微生物学
- 医疗卫生流行病学 医疗卫生流行病学
背景情况:
- 困难菌感染 (CDI) 构成了医疗保健方面的重大挑战.
- 识别殖民个体中CDI进展的风险因素对于预防至关重要.
研究的目的:
- 确定宿主和临床因素,预测从C. difficile殖民过渡到活跃感染.
- 评估抗生素暴露对殖民患者中CDI发展的影响.
主要方法:
- 在杜克大学卫生系统进行了一项回顾性,匹配的病例对照研究.
- 在90天内转换为CDI (NAAT+/毒素+) 的C. difficile殖民 (NAAT+/毒素-) 的成年患者被确定为病例.
- 匹配的对照组是殖民患者,他们仍然是毒素负的,数据分析了抗生素使用和其他临床因素.
主要成果:
- 该研究确定了71例病例和133个匹配的对照,来自2,212名殖民患者.
- 在观察期之前和期间,持续接触高风险抗生素与CDI的进展密切相关 (aOR2.70,P = .03).
- 其他几种宿主和临床特征也独立地与CDI发展有关.
结论:
- 长期使用高风险抗生素是C. difficile殖民发展为CDI的重要预测因素.
- 加强抗生素管理策略对于预防CDI至关重要,特别是在已经被确定为殖民的患者中.
- 进一步的研究是有必要的,以开发有效的纵向管理干预措施.
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