与生物膜相关的Achromobacter xylosoxidans假体膜感染性内心炎
Lisa-Marie Wackernagel1, Judith Kikhney2, Tassilo Kruis3
1Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Infectious Diseases and Critical Care Medicine, Augustenburger Platz 1, Berlin 13353, Germany.
International journal of medical microbiology : IJMM
|July 25, 2025
概括
艾克罗巴克特菌氧化素感染性内心炎 (IE) 是罕见的. 光在位杂交测序 (FISHseq) 在传统方法失败时成功诊断IE,揭示了体内生物膜并指导治疗.
科学领域:
- 传染性疾病 传染性疾病
- 微生物学 微生物学
- 心脏病学 心脏病学
背景情况:
- 包括Achromobacter xylosoxidans在内的阴性细菌是感染性内心炎 (IE) 的新兴原因.
- 在IE中,A. xylosoxidans的体内生物膜潜力尚未先前确定.
- A. xylosoxidans是一种机会主义的,非发酵的,格拉姆阴性细菌.
研究的目的:
- 为了调查一种罕见的由Achromobacter xylosoxidans引起的传染性内心炎病例.
- 评估光在现场杂交测序 (FISHseq) 在具有挑战性的病例中诊断IE的实用性.
- 探索生物膜形成在治疗失败中的作用.
主要方法:
- 用光在位杂交测序 (FISHseq) 分析心脏手术标本.
- FISHseq与16S rRNA基因PCR和用于微生物识别的测序相结合.
- 传统方法包括膜培养,心声学和正子发射断层扫描用于比较.
主要成果:
- 传统方法未能检测到细菌生长或IE的证据在扩展的假肢.
- FISHseq成功地在心脏膜组织中识别了A. xylosoxidans,证实了体内生物膜的形成.
- 基因组分析揭示了A. xylosoxidans中的多重耐药基因,导致治疗失败.
结论:
- 根据2023年杜克-ISCVID标准,FISHseq使得格兰阴性IE的最终诊断成为可能,克服了传统诊断的局限性.
- 甲状腺氧化素的生物膜形成能力对抗微生物药物治疗的有效性提出了挑战.
- 临床医生应考虑A. xylosoxidans在管理IE病例中的生物膜潜力.
关键词:
生物膜是一种生物膜.这就是Cefiderocol.光在现场混合化中的光.在GNB-IE中,GNB-IE是GNB-IE.非HACEK-GNB-IE 的国家.塔维 (Tavi) 是一个古老的城市.更多相关视频
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