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Revista Pan-Amazônica de Saúde

versão On-line ISSN 2176-6223

Resumo

FURTADO, Diego Moreno Fernandes et al. Antimicrobial consumption and its impact on bacterial resistance in a public hospital in Pará State, Brazil, from 2012 to 2016. Rev Pan-Amaz Saude [online]. 2019, vol.10, e201900041.  Epub 11-Set-2019. ISSN 2176-6223.  http://dx.doi.org/10.5123/s2176-6223201900041.

OBJECTIVE:

To evaluate the profile of antibiotic consumption and its impact on bacterial resistance in a university hospital in Pará State, Northern Brazil, from 2012 to 2016.

MATERIALS AND METHODS:

A total of 279 blood cultures from adult patients, both sexes, admitted to wards and Intensive Care Unit (ICU), were selected for further analysis of clinical specimen culture results.

RESULTS:

Primary bloodstream infections accounted for 60.2% of the total. Gram-negative bacilli (GNB) were the most frequent microorganisms (51.3%), of which the fermenters were resistant to ceftazidime (83.0%) and cefepime (76.1%). Staphylococcus aureus resistance to clindamycin and oxacillin reached 57.4% and 48.9%, respectively. There was a statistically significant reduction in overall consumption of piperacillin + tazobactam and vancomycin. In ICU, there was reduction in ceftriaxone, oxacillin, piperacillin + tazobactam and vancomycin consumption and increase in amikacin and meropenem consumption (all statistically significant). Fermentative GNB and S. aureus showed a positive and nonlinear correlation between the increase of resistance rates and cefepime and oxacillin consumption, respectively.

CONCLUSION:

Antimicrobial consumption and its impact on bacterial resistance varied over the study period, highlighting the positive and nonlinear correlation between increased cefepime and oxacillin consumption and the recrudescence of fermenting BGN strains and resistant S. aureus strains, respectively.

Palavras-chave : Drug Utilization; Multiple Antibacterial Drug Resistance; Anti-Infective Agents.

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