革兰氏阴性杆菌对14种抗生素的MIC范围及耐药性分析

利用全自动微生物分析仪VITEKAMS 3 2鉴定G-杆菌及进行药敏试验。分离率依高至低依次是大肠埃希菌 (E .coli) (esccol) 3 1 .1 %、肺炎克雷伯菌 (Klebsiellapneumoniae) (klepne) 1 8.6%、铜绿假单胞菌 (Pseudomonasaeruginosa) (pneaer) 1 4 .5%、醋酸钙不动杆菌 (Acinetobactercalcoacetieus) (acicba) 1 2 .9%、阴沟肠杆菌 (Enterobactercloacae) (entclo) 1 0 .3 %、普通和奇异变形杆菌 (Proteusvulgaris和Proteusmirabilis) (pro .pp) 9.3 %、费劳地枸橼酸杆菌 (Citrobacterfreundii) (citfre) 3 .4 %。esccol和klepne对头孢一、二代 ,青霉素类耐药率达 4 1 %～ 1 0 0 % ,MIC90 3 2～ 2 56mg/L ,显示了较高耐药性。pneaer对亚胺硫霉素 (IMP)的耐药率达3 6% ,MIC90 1 6mg/L ,对氧哌嗪青霉素耐药率较低( 1 2 % )。82 % pneaer显示六重或以上耐药。entclo、citfre、pro .pp中尚未发现 1株entclo对IMP耐药 ,但后 2种细菌对IMP的耐药率分别是 1 7% ,1 8% ;不动杆菌对所测抗生素广谱耐药 ,IMP较有效 (耐药率 8% )。肠杆菌科细菌已出现对IMP耐药菌株。铜绿假单胞菌对IMP的耐药率达 3 6%。

RESISTANCE SURVEILLANCE TO FOURTEEN ANTIBIOTICS AND MIC OF MAIN GRAM-NEGATIVE BACILLI

VITEK AMS 32 was used to identify Gram negative bacilli, and their resistance against fourteen antibiotics was tested. The separation of various bacilli was done. Data of their resistance against the antibiotics and resistant rate were obtained and listed. In order to take antibiotics reasonably, it is important to do routine inspection on medicine resistance of bacteria.