相关实验视频
Updated: Apr 13, 2026

10:41
A Tuberculosis Molecular Bacterial Load Assay TB-MBLA
Published on: April 30, 2020
14.0K
基于机器学习的风险评估工具,以排除ESBL向治疗在特有地区的实证使用
H D Ravkin1, R M Ravkin2, E Rubin3
1Goldman Medical School, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel.
The Journal of hospital infection
|April 28, 2024
概括
一个新的机器学习工具有助于识别不太可能患有扩展谱β-乳糖酶 (ESBL) 耐药性的患者. 这种抗菌药物管理策略减少了在高耐药性地区不必要的ESBL向治疗.
科学领域:
- 传染性疾病 传染性疾病
- 临床微生物学 临床微生物学
- 医疗信息学 医疗信息学
背景情况:
- 抗菌药物管理需要确定需要扩展谱β-乳糖酶 (ESBL) 向治疗的患者.
- 现有的"规则"工具对于高患病率的ESBL地区是不够的,导致过度选择患者.
研究的目的:
- 开发基于机器学习的"排除"工具,用于识别不需要ESBL向治疗的患者.
- 创建一个适合在抗菌素耐药性高的地区临床使用的工具.
主要方法:
- 一个风险预测模型使用渐变增强的决策树在17913名大肠杆菌和Klebsiella pneumoniae患者的数据上进行了训练.
- 使用Shapley值来评估各种预测变量的贡献.
主要成果:
- 该模型实现了0.72的接收器操作特征曲线下的面积,用于识别ESBL流行地区的低风险患者.
- 选择具有最低预测风险的30%患者的结果是负预测值至少为0.74.
- 一个简化的7个特征模型表现出与完整模型可比的性能,并且可以作为Web应用程序使用.
结论:
- 抗生素耐药性的风险计算器是一种可行的"排除"策略,以减少ESBL向治疗的使用.
- 简化模型的强大性能支持其在ESBL高流行地区的临床采用.
- 这种工具为广泛的实证卡巴胺使用提供了替代方案,因为ESBL产生病原体的比例不断上升.
相关概念视频
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
69
Genetic polymorphisms in drug targets have emerged as critical determinants of interindividual variability in drug response and toxicity. Pharmacogenomic investigations increasingly focus on identifying these variations to personalize and optimize therapeutic interventions. A drug target may be a receptor, enzyme, or signaling protein involved in pharmacologic responses or disease-related pathways. While early pharmacogenetic studies focused primarily on drug metabolism, current research...
69
Automated Microbial Diagnostics
48
Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...
48
Clinical Significance of Antibiotic Resistance
55
Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within...
55

