Comparative susceptibility of 10 antimicrobials against Pseudomonas aeruginosa isolated from complicated urinary tract infection on 1992 & 1993 vs. 1994 & 1995

Abstract

The susceptibility of 10 antimicrobials against P. aeruginosa isolated from complicated UTI during 1992-1995 was determined, and the yearly trend was examined. The drug tested included 3 cephems (ceftazidime [CAZ], cefpirome [CPR], cefclidin [CFCL]), 1 monobactam (aztreonam [AZT]), 2 carbapenem (imipenem/cilastatin [IPM/CS], biapenem [BIPM]), 2 aminoglycosides (netilmicin [NTL], gentamicin [GM]) and 2 new quinolones (ofloxacin [OFLX], ciprofloxacin [CPFX]). A total number of isolates of which MIC were determined was 77 in 1992/1993 and 70 in 1994/1995. MIC50/MIC90(micrograms/ml) on the isolates were as follows (1992/1993 1994/1995); 3.13/ 100 12.5/50 in CAZ, 12.5/100 12.5/100 in CPR, 3.13/25 1.56/25 in CFCL, 6.25/50 12.5/100 in AZT, 6.25/25 3.13/25 in IPM/CS, 1.56/6.25 0.78/50 in BIPM, 12.5/100 6.25/100 in NTL, 6.25/ 50 6.25/100 < in GM, 25.100 < 25/100