Health> Vol.6 No.2, January 2014

Evaluation of rational use of antimicrobial agents in a Brazilian intensive care unit

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The present study sought to assess the rational use of antimicrobial agents in a Brazilian intensive care unit (ICU) and its association with antimicrobial resistance in elderly patients admitted to the unit. Results: Choice of empiric and sensitivity-guided therapy was inadequate in > 80% and 59% of cases respectively. Inadequate antimicrobial therapy, whether empiric or sensitivity-guided, was positively correlated with bacterial resistance (r = 0.316; p = 0.001). Sensitivity testing revealed a 46.5% resistance rate to eight out of the ten most commonly used antibiotics. Multiple drug-resistant organisms were found in 40.8% of patients. A significant increase was observed in the number of multidrug-resistant samples between 2006/2007 and 2008 (r = 0.41, p = 0.006), (r = 0.598, p = 0.001), (r = 0.688, p = 0.00). Conclusion: We found a high rate of antibiotic misuse in the study sample. Inadequate therapy was correlated with resistance to antimicrobial agents.


Cite this paper

Cartaxo Salgado, F. , Gavilanes Sanchez, T. , da Silva, N. , Oliveira, H. , Karnikowski, M. and de Oliveira Karnikowski, M. (2014) Evaluation of rational use of antimicrobial agents in a Brazilian intensive care unit. Health, 6, 188-194. doi: 10.4236/health.2014.62028.


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