Analysis on pathogenic distribution and bacterial drug resistance of clinical blood infections / 国际检验医学杂志

ABSTRACT

Objective To understand the pathogenic distribution and drug resistance in the patients with blood infections in our hospital to provide reference for the empirical medication of blood infections .Methods The cases of blood infections in our hospital during the period 2012-2014 were performed the retrospective investigation .The BD Bactec blood culture system was adopted to conduct the blood culture .The bacterial strain identification and susceptibility test was conducted by using the Microscan Walkaway 40 and the data were analyzed by adopting the WHONET5 .6 software .Results The top four of department distribution in blood infections were the digestive system department ,lung diseases department ,orthopedic department and surgery department ,account‐ing for 25 .20% ,19 .60% ,14 .70% and 10 .50% respectively .The pathogens were mainly Gram negative bacteria ,and the top three were Escherichia coli ,Klebsiella pneumoniae and non fermenting bacteria ,accounting for 44 .10% ,13 .30% and 7 .69% respective‐ly .The top three of Gram positive bacteria were coagulase negative staphylococci ,Staphylococcus aureus and Enterococcus ,account‐ing for 12 .58% ,9 .09% and 7 .69% respectively .The positive rates of ESBL in Escherichia coli and Klebsiella pneumoniae were 45 .5% and 60 .8% respectively .The detection rate of methicillin resistant coagulase negative staphylococci (MRCNS) was 55 .5% , which of methicillin-resistant staphylococcus aureus (MRSA) was 58 .0% .Conclusion The cases of blood infections in our hospi‐tal come from different wards areas ,and the digestive system department is in the majority mostly .The pathogenic bacteria are dom‐inated by Gram negative bacteria ,and the treatment should rationally use the antibacterial drugs according to the bacteria drug re‐sistance situation .