2014-2024年某院1 144例CRE社区感染的流行病学特征

Epidemiological characteristics of 1 144 patients with community-acquiredCRE infection in a hospital from 2014 to 2024

  • 摘要: 目的 分析碳青霉烯类耐药肠杆菌目细菌(CRE)社区感染的流行病学特征,为制定社区层面CRE感染的预防与控制策略提供依据。方法 采用回顾性描述性研究方法,纳入2014-2024年湖北医药学院附属太和医院确诊的1 144例CRE社区感染患者,通过医院电子病历系统收集患者的人口学资料、入住科室、感染部位、病原菌种类及药敏试验结果。结果 2014-2024年CRE社区感染患者呈波动上升趋势,2023年为最高峰,达221例,患者以男性及年轻老年人(60~74岁)群体为主,分别占比60.84%和35.66%; 患者主要分布于内科(36.19%)、外科(34.70%); 分离菌株以碳青霉烯类耐药肺炎克雷伯菌(CRKP,63.02%)和碳青霉烯类耐药大肠埃希菌(CREC,16.96%)为优势菌种; 感染部位以呼吸道(62.67%)和泌尿道(16.70%)最为常见。耐药分析结果显示,CRKP对头孢菌素类抗菌药物(头孢唑林88.55%、头孢呋辛88.95%)耐药率较高,而替加环素与多黏菌素B仍具有较好抗菌活性。结论 CRE社区感染呈现中老年男性为主、呼吸道为主要感染部位、内科与外科为高风险科室,表现出对头孢菌素类等抗菌药物的高度耐药性。应重视CRE感染的社区防控、合理优化抗菌药物使用。

     

    Abstract: OBJECTIVE To investigate the epidemiological characteristics of community-acquired carbapenem-resistant Enterobacteriaceae (CRE) infection so as to provide bases for prevention and control of the community-acquired CRE infection. METHODS By means of retrospective descriptive study, a total of 1144 patients who were diagnosed with community-acquired CRE infection in Taihe Hospital Affiliated to Hubei University of Medicine from 2014 to 2024 were enrolled in the study. The demographic data, departments for treatment, infection sites, species of pathogens and results of drug susceptibility testing were collected by hospital electronic medical record system. RESULTS From 2014 to 2024, the number of the patients with community-acquired CRE infections showed an overall fluctuating upward trend, reaching a peak of 221 cases in 2023; the male patients and the elderly patients (with 60 to 74 years of age) were dominant, accounting for 60.84% and 35.66%, respectively. Among the patients, 36.19% were from internal medicine departments, and 34.70% were from surgery departments. carbapenem resistant Klebsiella pneumoniae (CRKP,63.02%) and carbapenem-resistant Escherichia coli(CREC,16.96%) were the predominant species of the isolated strains. The respiratory tract (62.67%) and urinary tract (16.70%) were the most common infection sites. The result of drug resistance analysis showed that the drug resistance rates of the CRKP strains to cephalosporins (cefazolin 88.55%, cefuroxime 88.95%); tetracycline and polymyxin B still showed high antibacterial activity. CONCLUSIONS The patients with community-acquired CRE infection are characterized by middle-aged and elderly male, respiratory tract of the major infection site, high-risk departments of internal medicine and surgery departments, and high drug resistance rates to cephalosporins. It is necessary to attach great importance to the prevention and control of community-acquired CRE infection and reasonably optimize the use of antibiotics.

     

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