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Efficacy of cefepime in rats with experimental pneumonia induced by extended-spectrum β-lactamase-producing strain of Klebsiella pneumonia
Author(s): 
Pages: 287-290
Year: Issue:  4
Journal: CHINESE JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE

Keyword:  头孢吡肟超广谱β-内酰胺酶肺炎克雷伯菌;
Abstract: 目的评价体外试验敏感的头孢吡肟对大鼠产超广谱β-内酰胺酶(ESBLs)的肺炎克雷伯菌肺炎的体内治疗效果.方法选取临床分离的产ESBLs的肺炎克雷伯菌2株,建立2组大鼠肺炎模型.2株菌体外试验对头孢噻肟均耐药,对哌拉西林/他唑巴坦均敏感,对头孢吡肟分别为:第1组敏感,第2组耐药.每组随机分为4个亚组,分别注射生理盐水及上述三种抗生素.治疗96 h后评价治疗效果.结果第1组:哌拉西林/他唑巴坦组、头孢吡肟组死亡率(25%、20%)、肺组织匀浆活菌计数(lgCFU/g)(10.79±2.80、10.97±3.74)明显低于头孢噻肟组、对照组(63.6%和68.0%;15.97±5.52和15.70±5.57)(P<0.05).第2组:哌拉西林/他唑巴坦组死亡率(21.4%)、肺组织匀浆活菌计数(10.68±2.33)明显低于头孢噻肟组、对照组(57.9%和66.7%;15.54±5.40和15.76±4.62)(P<0.05).头孢吡肟组死亡率(42.9%)及肺组织匀浆活菌计数(12.08±1.81)与对照组、头孢噻肟组无显著性差异(P>0.05).结论体外试验敏感的头孢吡肟治疗大鼠产ESBLs的肺炎克雷伯菌肺炎,可降低死亡率、减少肺组织匀浆活菌计数,与哌拉西林/他唑巴坦作用无显著性差异.
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