在雷达下飞行:在Staphylococcus epidermidis腹膜炎中,万科米辛异阻力与治疗失败有关
Malgorzata K Kopczyk1,2, Joshua P Ramsay3, Kieran T Mulroney1,2
1UWA Center for Medical Research (affiliated with the Harry Perkins Institute of Medical Research), The University of Western Australia, Perth, Australia.
ASM case reports
|November 17, 2025
概括
抗微生物耐药性 (AMR) 可以通过标准测试错过. 一例Staphylococcus epidermidis 周炎病例显示出万科米辛异阻力,导致治疗失败并突出诊断局限性.
科学领域:
- 微生物学 微生物学
- 传染性疾病 传染性疾病
- 一个健康,一个健康.
背景情况:
- 抗菌素耐药性 (AMR) 在全球范围内对人类和动物健康构成重大威胁.
- 传统的抗微生物敏感性测试 (AST) 可能无法检测出所有形式的抗菌素耐药性,包括异性抗药性.
- 异种耐药性可能导致治疗失败,即使孤立的细胞似乎对抗生素敏感.
研究的目的:
- 报告患有 Staphylococcus epidermidis 周周炎的患者的万科米辛治疗失败的情况.
- 调查S. epidermidis分离物中存在万科米辛异能耐药性的存在.
- 突出目前用于检测AMR的诊断方法的局限性.
主要方法:
- 一个患有腹膜透析 (PD) 相关腹膜炎的患者的病例介绍.
- 使用了传统的AST (VITEK 2和微稀释) 和人口分析概况 (PAP-AUC).
- 全基因组测序 (WGS) 在S. epidermidis分离物上进行.
主要成果:
- 从万科米辛治疗失败病例中分离出的S. epidermidis被始终错误地归类为常规AST对万科米辛敏感.
- PAP-AUC证实了隔离物中的万科米辛异体电阻.
- WGS没有识别出与万科米辛耐药性相关的已知遗传突变.
结论:
- 传统的AST和WGS未能在这种S. epidermidis周周炎病例中检测到万科米辛异阻力.
- 这凸显了诊断和管理AMR的挑战,特别是异阻力.
- 需要进一步的研究来改进对神秘的AMR形式的诊断方法,以提高患者的治疗结果.
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