Introduction:

antibiotic therapy is an effective treatment for many types of infections, but their overuse promotes the spread of resistant microorganisms, which is associated with increases in morbidity, mortality, length of stay, and hospital expenditures; a frequent difficulty in the intensive care unit.

Objective:

to evaluate the prevalence of microorganisms and describe the profiles of bacterial resistance in isolated foci of patients in one intensive care unit in Pereira.

Materials and method:

a retrospective study was performed. Sensitivity and resistance profiles of hospitalized patients during the first half of 2015 were analyzed. The information was extracted from clinical histories and laboratory reports. Antimicrobial susceptibility testing was performed with WHONET. Trend analyzes were done with STATA.

Results:

62 patients were included with a mean age of 57.9 years, 32 were female. The highest positivity was for blood cultures and urine cultures. The most frequently isolated microorganisms were: E. coli (resistance of 95%, 75% and 70% for ampicillin, cefazoline and piperaziline/tazobactam respectively), K. pneumonia (resistance of 46% to ampicillin/sulbactam, piperaziline/tazobactam and cefazolina), S. aureus and P. aeruginosa.

Conclusion:

Resistance profile found is alarming, associated with a high prevalence of Ampc-type p-lactamases (n=i6) and extended-spectrum p-lactamases (n=8). E. coli, K. pneumoniae and P. aeruginosa exhibit important resistance values for antibiotics commonly used in UCI as broad-spectrum penicillins and cephalosporins. MÉD.UIS. 2018;31(2):9-15.

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