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Biosalud
versão impressa ISSN 1657-9550
Resumo
CASTRO-OROZCO, Raimundo; VILLAFANE-FERRER, Lucy; ROCHA-JIMENEZ, Julio e ALVIS-GUZMAN, Nelson. ANTIMICROBIAL RESISTANCE IN Staphylococcus aureus AND Staphylococcus epidermidis: TEMPORAL TENDENCIES (2010-2016) AND MULTI-DRUG RESISTANCE PHENOTYPES, CARTAGENA (COLOMBIA). Biosalud [online]. 2018, vol.17, n.2, pp.25-36. ISSN 1657-9550. https://doi.org/10.17151/biosa.2018.17.2.2.
Introduction:
Staphylococcus spp. are opportunistic pathogens that cause diseases like osteomyelitis and bacteremia. These bacteria can acquire resistance to antibiotics being a public health problem due to the restriction of therapeutic options.
Objective:
To evaluate the tendency of antimicrobial resistance profiles of Staphylococcus aureus and Staphylococcus epidermidis isolated in a hospital in CartagenaColombia between 2010 and 2016.
Materials and methods:
Cross-sectional study. The broth microdilution method was used to determine the minimum inhibitory concentration of 12 antimicrobial agents. The behavior of antimicrobial resistance was studied according to the Staphylococcus species, the site of infection and the time period.
Results:
A total of 1218 Gram-positive cocci were isolated of which 42.7% were S. aureus, and 18.9% belonged to S. epidermidis. Of the isolates of S. aureus, 47.5% were resistant to methicillin and were found mainly in secretions (43.3%). In the case of S. epidermidis, 68.7% were resistant to methicillin and were found mainly in the blood (76.9%).
Conclusion:
Clinical isolates of S. aureus and S. epidermidis with a multi-resistance profile was identified. A constant behavior in their resistance profiles was detected during the study period except in the last two years in which a significant reduction of methicillin resistance in S. epidermidis was recognized.
Palavras-chave : Staphylococcus aureus; Staphylococcus epidermidis; microbial drug resistance; methicillin resistance; intensive care units; staphylococcal infections.