[The relationship between use of the antibiotics in a burn unit and the change of the drug-resistance of Staphylococcus aureus].
OBJECTIVE
To investigate the relationship between the use of antibiotics in a burn unit and the change in the drug - resistance of Staphylococcus aureus (S. aureus).


METHODS
By calculating the defined daily doses (DDD) of accumulated consumption of antibiotics per unit time and expense consumption, the use of different kinds of antibiotics in a burn unit in recent five years was analyzed, and correlation analysis between the change of antibiotics consumption amount and the change in drug - resistance level of S. aureus were carried out.


RESULTS
Amikacin, gentamycin and cephazolin were the commonest antibiotics used in our burn unit. They were relatively cheaper than some other antibiotics. The consumption amount of compound antibiotics application was negatively correlated with the penicillin resistance level of S. aureus. Seven correlation coefficients between the consumption of first generation cephalosporins and seven coefficiences of resistance rate of S. aureus were negative. The consumption amount of the 3rd generation of cephalosporin application was positively related to the resistance of S. aureus to erythromycin and oxacillin.


CONCLUSIONS
Accumulated DDD might be one of the ideal indices of reflecting antibiotic use. The changes in the consumption amount of the 1st and 3rd generation of cephalosporins containing beta-lactamase-inhibitor might affect the drug-resistance levels of S. aureus to some degree.
Yu
Yong
Y
Burn Institute, 304th Hospital of PLA, Beijing 100037, P.R. China.
Sheng
Zhiyong
Z
Chai
Jiake
J
Jiang
Lingmin
L
Yang
Xiaoqiang
X
Chang
Dong
D
Jiang
Wei
W
D000900:Anti-Bacterial Agents / Q000494:pharmacology / Q000627:therapeutic use*; D002053:Burn Units / Q000706:statistics & numerical data*; D002056:Burns / Q000188:drug therapy*; D004352:Drug Resistance, Microbial; D004363:Drug Utilization / Q000706:statistics & numerical data / Q000639:trends; D006801:Humans; D013211:Staphylococcus aureus / Q000187:drug effects*
D000900:Anti-Bacterial Agents