Infectious pathogen’s drug-resistance after liver transplantation / 中华器官移植杂志

ABSTRACT

Objective To study the main infectious bacteria and their drug-resistance after liver tra nsplantation. Methods K-B method was used to detect the susceptibility of agents of the main bacteria after liver transplantation. ESBLs and AmpC ?-lactamase among the main negati ve bacillus were detected by three-dimensional tests. ?-lactamase and Van gen e among Enterococcus were dectected by standard agar dilution susceptibility tes ts and Nitrocefin respectively. Results Among the main Gram-negative bacteria in 55 cases of infection following liver transplantation, the ratio of resistance to 4 or more antibiotic were all beyond 40% . The detectable rate of ESBLs and AmpC ?-lactamases in Enterobacter cloacae and Escherichia coli was 32.4% and 36.8% , and 33.8% and 10.5% re spectively. Moreover, the detectable rate of both ESBLs and AmpC ?-lactamases in Enterobacter cloacae and Escherich ia coli was 24.3% and 7.0% repectively. 8.8% and 11.1% produced ?-lactamases in Enterococcus faec alis and Enterococcusfaecium, with the ratio of resistance to Vancomycin being 11.2% and 18.5% respectively. Conclusions The primary pathogens have the high and multiple resistance to antimicrobial aft er liver transplantation. ESBLs and AmpC ?-lactamases were the main two factor s of drug-resistance among Gram-negative bacillus. we should pay much attentio n to the high detectble rate of Enterococcus which are resistant to Vancomycin a fter liver transplantation.