球菌感染:对临床经验和抗菌素敏感性概况的10年后期分析
Nischal Ranganath1, Maria Alejandra Mendoza1, Ryan Stevens2
1Division of Public Health, Infectious Diseases, and Occupational Medicine, Mayo Clinic, Rochester, Minnesota, USA.
Journal of clinical microbiology
|February 13, 2024
概括
由于抗生素耐药性,免疫受损患者的牛角球菌感染具有挑战性. 伊米尼姆和万科米辛具有很高的敏感性,为Rhodococcus equi感染提供了潜在的经验性治疗选择.
科学领域:
- 微生物学 微生物学
- 传染性疾病 传染性疾病
- 临床医学 临床医学
背景情况:
- Rhodococcus equi是一种机会性病原体,在免疫功能低下的人群中引起严重感染.
- 内在抗生素耐药性复杂化了罗多菌感染的治疗.
- 有限的数据存在于临床意义和抗生素敏感性测试 (AST) 的非均的罗多科克斯物种.
研究的目的:
- 为了评估临床特征,微生物特征和Rhodococcus感染的AST.
- 为了比较R. equi和非equ Rhodococcus物种的AST概况.
- 为了确定有效的治疗方案,对于罗多可克菌感染.
主要方法:
- 从2012年6月到2022年,对322个Rhodococcus分离物的回顾性队列研究.
- 使用16S rRNA基因测序和MALDI-TOF MS.进行物种鉴定.
- 抗生素敏感性测试 (AST) 通过对199个分离物进行亚格稀释进行.
主要成果:
- R. equi/hoagii,R. corynebacterioides和R. erythropolis是最常见的;19%的人只在属级别确定.
- 观察到对阿莫西西林/克拉夫兰酸盐,素和氨基糖化物有很高的耐药性.
- 超过95%的易感性对伊米佩内姆,万科米辛,线索利德,里法和克拉里思罗米辛;非同类物种的AST概况更好.
结论:
- 临床上显著的Rhodococcus感染很少见,但具有挑战性.
- 伊米和万科米辛是潜在的经验治疗R. equi感染尽管耐药性.
- 需要对Rhodococcus中的抗菌素耐药机制进行进一步的研究.
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