在格兰阴性细菌感染中对carbapenemases的分子表征:在第三级护理中心进行了一项为期5年的回顾性观察性研究
Aysha Linsy1, Sevitha Bhat1, Nivedha Srinivasan1
1Department of Microbiology, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India.
Annals of African medicine
|December 31, 2025
概括
耐卡巴尼姆的格拉姆阴性细菌 (CR-GNB) 感染是一个主要的威胁. 一项为期5年的研究发现,NDM和NDM+OXA-48碳烯酶基因的转变,指导了更好的治疗策略.
科学领域:
- 微生物学 微生物学
- 传染性疾病 传染性疾病
- 分子诊断学 分子诊断
背景情况:
- 耐卡巴尼姆的格拉姆阴性细菌 (CR-GNB) 由于治疗选择有限和死亡率高,对全球健康构成重大挑战.
- 快速分子诊断测试对于及时检测和改善CR-GNB感染的管理至关重要.
研究的目的:
- 通过Xpert Carba-R测定,在五年内对格拉姆阴性细菌的卡巴酶基因概况进行表征.
- 为了确定相关的感染部位和CR-GNB.患者相关的风险因素.
主要方法:
- 从2019年10月到2024年12月,在印度南部的一个三级护理中心进行了一项回顾性观察研究.
- 用Xpert Carba-R测定分析了临床显著的分离物,并收集和统计分析了人口统计,临床和治疗数据.
主要成果:
- 在136个分离物中,94.85%的carbapenemase基因存在,其中新德里金属β-乳糖酶 (NDM) 和NDM+氧素化β-乳糖酶-48 (OXA-48) 是最常见的.
- Klebsiella pneumoniae 是主要的物种. 尿路感染是最常见的部位,与NDM + OXA-48 (P=0.035) 有显著的关联.
- 治疗方案在48.27%的患者中进行了修改,通常包括ceftazidime-avibactam,aztreonam或polymyxin B.
结论:
- 在为期五年的研究期间,观察到明显的转向NDM和NDM + OXA-48碳烯酶基因型.
- 快速分子诊断对于优化患者治疗和促进在管理CR-GNB感染中的抗菌药物管理至关重要.
关键词:
碳烯的质量也很大.碳酸的化物.格拉姆阴性细菌是一种细菌.没有了,没有了,没有了.印度 印度 印度这种细菌是Gram阴性细菌.药物耐药性 耐药性 药物耐药性分子诊断技术 分子诊断技术抗生素耐药性 抗生素耐药性分子诊断技术 分子诊断技术更多相关视频
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