Changing aetiology of urinary tract infections and emergence of drug resistance as a major problem.

A study was undertaken to ascertain the spectrum of causative agents responsible for UTI and to detect the magnitude of anti microbial resistance in aetiological agents. Klebsiella species caused urinary tract infection in maximum number of cases (124, 37.35%) followed by Escherichia coli (114, 34.4%), Pseudomonas aeruginosa 32 (9.64%) and Staphylococcus aureus 23 (6.93%). Other organisms caused urinary tract infection in 39 (11.75%) cases. Resistance to gentamicin was observed in 83% S. aureus, 84.7% Klebsiella species, 78.1% Escherichia coli, 71.9% Pseudomonas aeruginosa and 94.8% of remaining isolates. A large number of isolates (> 90%) were resistant to ampicillin, Cotrimoxazole erythromycin, and chloramphenicol. All the isolates of S.aureus were resistant to penicillin. This observations indicate extremely high degree of resistance in urinary pathogen and warrant change in antibiotic usage as well as formulation of policy for rational use of antibiotics.