An analysis of the resistance and infectious factor of the Stenotrophomonas maltophilia

Objective To analyse the drug resistance of the Stenotrophomonas maltophilia and the cause of the clinical infection in order to prevent effectually infection and guide rational drug using in clinic.Methods 77 strains of Stenotrophomonas maltophilia were identified and carried on manual pharmaceutical analysis with the index of the VTTEK system.Results 77 strains of the Stenotrophomonas maltophilia showed multi-drug resistant to polyantibiotic,but the resistant ratios of ticarcillin-clavulanic acid,cefoperazone-sulbactam,SMZ-TMP,ciprofloxacin were lower.Moreover,host factor and iatrogenic factor were associated with the clinical infection of Stenotrophomonas maltophilia.Conclusions Stenotrophomonas maltophilia are multi-drug resistant with increasing of the infectious rate.The drug resistance of Stenotrophomonas maltophilia should be thought highly of in clinic for decreasing the chance of infection.