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在细菌病的阳性时间:临床效用和诊断影响

Özlem Aldemir¹, Murtaza Öz¹, Fatih Çubuk²

¹Department of Infectious Diseases and Clinical Microbiology, Ministry of Health Sivas Numune Hospital, Sivas, Türkiye.

Journal of microbiological methods

|February 16, 2026

概括

血液培养中的时间到阳性 (TTP) 有助于预测病原体类型并区分真实细菌病与污染. 这支持更快的临床决策,并优化了抗菌药物管理.

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
诊断实验室科学诊断实验室科学

背景情况:

血液培养对于诊断细菌血症至关重要.
及时解释血液培养结果对于有效的患者管理至关重要.
将真实感染与污染物区分开来,会影响治疗决策和资源分配.

研究的目的:

为了评估患有细菌血症的患者血液培养的阳性化时间 (TTP).
评估TTP在预测病原体类别中的实用性.
确定TTP在区分真实细菌病与污染中的作用,并支持早期临床决策.

主要方法:

对成年患者在血液培养中出现细菌或真菌生长的回顾性分析.
包括来自217名患者的513个阳性培养瓶.
对与TTP相关的人口,实验室和微生物学参数的评估.

主要成果:

对于格拉姆阴性细菌病,TTP的时间明显短于格拉姆阳性细菌病,对于格拉姆阳性细菌病,TTP的时间明显短于真菌感染.
黄金葡萄球菌和球菌 spp. 与其他格拉姆阳性细菌相比,具有较短的TTP.
与受污染的培养相比,TTP在真正的细菌病中明显较短 (p < 0.001).

结论:

TTP可以帮助预测病原体类型,并区分真正的细菌病与污染.
病原体特定的TTP模式,以及格拉姆染色和临床评估,可以指导早期的经验治疗和污染管理.
通过TTP早期识别真实感染,通过减少不必要的抗生素使用来支持抗菌管理.

关键词:

细菌病是什么意思细菌病是什么意思生物标志物生物标志物血液培养血液培养是什么?污染污染污染污染现在是积极的时间了.

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