2013-2025年某院洋葱伯克霍尔德菌流行特征与耐药性及感染危险因素

Epidemiological characteristics, drug resistance and risk factors for Burkholderia cepacia complex infection in a hospital from 2013 to 2025

  • 摘要: 目的 分析某医院2013-2025年洋葱伯克霍尔德菌(BCC)的流行特征、耐药性和感染危险因素,为院内BCC精准防控、临床合理用药及感染管理策略制定提供循证依据。方法 回顾性收集2013-2025年解放军总医院第一医学中心BCC检出患者的社会人口学特征、临床诊疗资料、药敏试验结果。分析BCC的流行特征、感染危险因素和耐药性。结果 2013-2025年BCC检出患者共850例,其中发生BCC医院感染的共334例(占39.29%)。2013-2025年感染率整体呈下降趋势(χ趋势2=12.663,P趋势<0.001)。复合感染患者共296例,317例次,感染部位以肺部感染为主(占65.62%),标本类型主要为痰(占64.04%);合并临床常见多重耐药菌(MDRO)的共158例次(占49.84%)。单纯BCC引起的感染共38例,42例次,感染部位以尿路感染(占52.38%)和血流感染(占45.24%)为主。住院科室、手术、中心静脉置管和合并MDRO是发生BCC医院感染的危险因素(P<0.05)。BCC对氧氟沙星的耐药率最高(33.60%),其次是左氧氟沙星(28.34%)。对替加环素、头孢哌酮/舒巴坦、亚胺培南、庆大霉素、阿米卡星和头孢吡肟的总耐药率<5%。结论 应重点关注感染高风险人群和科室,持续监测洋葱伯克霍尔德菌的流行特征,合理选择抗菌药物,提高临床诊疗水平。

     

    Abstract: OBJECTIVE To analyze the epidemiological characteristics, drug resistance and risk factors of Burkholderia cepacia complex (BCC) infections in a hospital from 2013 to 2025, and to provide evidence-based support for the precise prevention and control of BCC infections, rational clinical drug use and the development of infection management strategies within the hospital. METHODS We retrospectively collected the sociodemographic characteristics, clinical diagnosis and treatment data and drug sensitivity test results of patients with BCC positive detection at the First Medical Center of the Chinese People's Liberation Army General Hospital from 2013 to 2025. The epidemiological characteristics, infection risk factors and drug resistance of BCC were analyzed. RESULTS A total of 850 patients were detected with BCC from 2013 to 2025, of which 334 (39.29%) were hospital-associated BCC infection. The overall infection rate showed a downward trend from 2013 to 2025 (χtrend2=12.663, Ptrend<0.001). A total of 296 co-infected patients accounted for 317 cases of co-infection. The lung was the most common infection site (65.62%), and sputum was the predominant specimen type (64.04%). A total of 158 cases (49.84%) were associated with clinically common multidrug-resistant organisms (MDRO). A total of 38 patients accounted for 42 cases of BCC monoinfection, with urinary tract infections (UTI) (52.38%) and bloodstream infections (BSI) (45.24%) identified as the predominant infections. Inpatient departments, surgery, central venous catheterization and co-occurrence with MDRO were risk factors for hospital-associated infections caused by BCC (P<0.05). BCC had the highest resistance rate to ofloxacin (33.60%), followed by levofloxacin (28.34%). The resistance rates to tigecycline, cefoperazone/sulbactam, imipenem, gentamicin, amikacin and cefepime were each below 5%. CONCLUSION Special attention should be paid to high-risk populations and departments for infection, to continuous monitoring of the epidemiological characteristics of BCC, to rational selection of antimicrobial agents, and to improvement of clinical diagnosis and treatment levels.

     

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