基层医院多药耐药菌感染及管理对策研究

Prevalence of multidrug-resistant organisms infections in grass-roots hospitals and management countermeasures

  • 摘要: 目的 探讨基层医院多药耐药菌感染情况,分析医院内部防控和管理对策。方法 选取2015年7月-2016年6月感染和应用抗菌药物治疗的患者进行病原学送检,医院微生物实验室根据要求检测多药耐药鲍曼不动杆菌(MDRAB)、产超广谱β-内酰胺酶(ESBLs)细菌、耐碳青霉烯类肠杆科细菌(CRE)、耐甲氧西林金黄色葡萄球菌(MRSA)等; 并对临床分离菌株进行抗菌药物药敏试验。结果 送检样本共计4 294份,阳性标本为969份,占22.56%,共检出多药耐药菌188株,多药耐药菌中产ESBLs 大肠埃希菌所占比例最高,为56.38%,其次为MDRAB为12.23%; MRSA为10.63%; 产ESBLs 大肠埃希菌检出率一直较高,MDRAB主要集中在ICU,产ESBLs 大肠埃希菌集中在内科系统; MDRAB几乎对所有抗菌药物均呈现高耐药性; 产ESBLs大肠埃希菌对亚胺培南等碳青霉素烯类药物敏感; 耐碳青霉烯类耐药菌株对庆大霉素具有一定的敏感性,对阿米卡星敏感性较好。结论 临床医生在选择抗菌药物时需结合患者实际情况以及药敏试验结果进行,从各个环节有效控制抗菌药物的滥用,监测并定期分析多药耐药菌分布、耐药率等数据变化情况,指导临床合理应用抗菌药物。落实手卫生,消毒隔离措施,遏制MDRO的传播保障医患安全。

     

    Abstract: OBJECTIV To explore the prevalence of multidrug-resistant organisms (MDROs) infections in grass-roots hospitals and analyze the prevention and management countermeasures. METHODS The patients who had infections and were treated with antibiotics from Jul 2015 to Jun 2016 were enrolled in the study. The specimens that were obtained from the patients were submitted for etiological examination.Multidrug-resistant Acinetobacter baumannii (MDRAB), extended-spectrum β-lactamases (ESBLs)-producing bacteria, carbapenem-resistant Enterobacteriaceae (CRE), and methicillin-resistant Staphylococcus aureus (MRSA) were detected by the microbiological laboratory.The drug susceptibility testing was performed for the isolated clinical strains. RESULTS A total of 4 294 specimens were submitted, of which 969 were positive, accounting for 22.56%.Totally 188 strains of MDROs were isolated, among which the proportion of ESBLs-producing Escherichia coli was the highest (56.38%), followed by the proportion of the MDRAB (12.23%) and the proportion of the MRSA (10.63%).The isolation rate of ESBLs-producing E.coli remained high, most of the MDRAB strains were isolated from ICUs, and most of the ESBLs-producing E.coli strains were isolated from internal medicine departments.The MDRAB strains were highly resistant to almost all of antibiotics.The ESBLs-producing E.coli strains were susceptible to the carbapenems such as imipenem; the carbapenem-resistant strains showed certain sensitivity to gentamicin and were highly susceptible to amikacin. CONCLUSION The clinicians should consider the actual condition of the patients and the result of drug susceptibility testing when selecting antibiotics, curb the abuse of antibiotics from various links, monitor the distribution of MDROs, and regularly analyze the change of drug resistance rate so as to provide guidance for reasonable clinical use of antibiotics.The implementation of hand hugin and disinfection and isolation measures may curb the spresd of MDRO and ensure the safety of doctors and patients.

     

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