早产低体重儿血流感染95例病原学分析  

Pathogen profile of bloodstream infections in low birth weight preterm infants:a report of 95cases

作　　者：唐晓华[1] 唐希才[1] 杨卫琴[1] 黄结贞[1] 欧子豪 

机构地区：[1]广州医科大学附属第三医院检验科,广州510150 [2]广州医科大学金域检验学院

出　　处：《中国感染与化疗杂志》2015年第5期439-442,共4页Chinese Journal of Infection and Chemotherapy

基　　金：广州市医药卫生科技项目(20151A010102)

摘　　要：目的了解医院早产低体重儿(preterm low birth weigh,PLBW)血流感染病原菌分布及药敏情况,为临床诊治提供依据。方法对2011年1月—2014年4月住院治疗的95例PLBW血流感染患儿临床特点及病原学情况进行回顾性分析。结果共检出病原菌96株,其中革兰阴性杆菌57株,革兰阳性球菌38株,阿萨希丝孢酵母1株。最常见细菌为肺炎克雷伯菌(40株)和凝固酶阴性葡萄球菌(31株)。药敏结果显示:革兰阴性杆菌对亚胺培南等碳青霉烯类抗生素均敏感;链球菌对常用抗菌药物敏感率较高;葡萄球菌中,耐甲氧西林葡萄球菌(methicillin-resistant Staphycoccus,MRS)检出率高,MRS菌株对多数抗菌药物耐药,对口恶唑烷酮类(利奈唑胺)和糖肽类抗生素(万古霉素和替考拉宁)药物敏感率100%。结论 PLBW血流感染的主要病原菌为肺炎克雷伯菌和凝固酶阴性葡萄球菌,对于PLBW血流感染患儿,应及时完善相关检查并选用合理的抗菌药物进行治疗,改善其预后。Objective To study the etiology and antibiotic resistance of bloodstream infections in low birth weight preterm infants .Methods A total of 95 cases of bloodstream infections in low birth weight preterm infants were treated in our hospital from January 2011 to April 2014 .The clinical data of these patients were analyzed retrospectively .Results A total of 96 pathogens were isolated ,including 57 strains of gram‐negative bacilli ,38 strains of gram‐positive cocci ,and 1 strains of Trichosporon asahii .The most frequently isolated pathogens were Klebsiella pneumoniae （40 strains）and coagulase‐negative Staphylococcus（31 strains）.All gram‐negative bacilli were sensitive to carbapenems such as imipenem and panipenem . Streptococcus isolates were sensitive to most antibiotics .Most Staphylococcus isolates were methicillin‐resistant ,which were highly resistant to common antibiotics but all sensitive to linezolid , vancomycin and teicoplanin . Conclusions The most important pathogens responsible for bloodstream infections in low birth weight preterm infants in our hospital are K lebsiella pneumoniae and coagulase‐negative Staphylococcus . Early identification of responsible pathogen and rational antimicrobial therapy are critical for good prognosis of bloodstream infections in low birth weight preterm infants .

关 键 词：早产低体重儿 血流感染 耐药性 

分 类 号：R446.5[医药卫生—诊断学]