现实生活中的快速表型敏感性测试:MIC值如何影响败血症 快速诊断工作流程
Giuseppe Migliorisi1, Maddalena Calvo1, Antonina Collura2
1U.O.C. Laboratory Analysis A.O.U. "Policlinico-San Marco", Via Santa Sofia 78, 95123 Catania, Italy.
Diagnostics (Basel, Switzerland)
|January 11, 2024
概括
加快PhenoTM系统提供了快速的抗微生物敏感性测试 (AST) 结果. 这些快速的表型敏感性数据显著影响了临床结果,特别是在抗菌素耐药性区域.
科学领域:
- 临床微生物学 临床微生物学
- 传染性疾病 传染性疾病
- 诊断技术 诊断技术 诊断技术
背景情况:
- 准确的抗微生物敏感性测试 (AST) 对于有效的感染管理至关重要.
- 快速的AST结果可以显著改善临床结果,并对抗抗菌素耐药性.
- 目前用于AST的标准方法可能耗时,延迟适当的治疗.
研究的目的:
- 评估加速PhenoTM系统的快速表型抗菌素敏感性数据.
- 与标准方法相比,评估系统的准确性和周转时间 (TAT).
- 确定快速敏感性数据在识别病原体和指导治疗中的临床有用性.
主要方法:
- 总共分析了270个单微生物样本.
- 样品经历了标准的AST程序和加速系统的快速协议.
- 在使用这两种方法之前进行了格拉姆染色以进行比较.
- 评估了周转时间 (TAT) 和统计协议.
主要成果:
- 加快PhenoTM系统实现了7小时的TAT中位数,用于识别和AST.
- 该系统在直接从阳性血液培养物中进行微生物识别方面表现出最佳的成功率.
- 格拉姆阴性AST与标准方法达成98.9%的一致性.
- 阳性AST与标准方法达到了98.7%的一致性.
- 对于测试的病原体,注意到一些频谱限制.
结论:
- 加快PhenoTM系统为快速表型AST提供了一个有价值的工具.
- 快速准确的MIC值对于优化患者护理至关重要,特别是在耐药性倾向的地区.
- 这项技术有可能增强临床决策和改善感染管理策略.
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