Antimicrobial Susceptibilities of Bacteria Isolated from Wound Cultures: A Three-Year Evaluation

Wound infections are important health problems especially in underdeveloped and developing countries. In this study, it was aimed to identify the microorganisms causing wound infection and their antimicrobial susceptibility patterns in order to assist in the selection of effective treatment. We retrospectively evaluated the microorganisms isolated from wound swab specimens sent to the microbiology laboratory of patients followed between 2014-2017. The identification of the microorganisms thought to cause infection was done with MALDITOF MS (bioMérieux, France) and the antimicrobial susceptibility with VITEK-2 (bioMérieux, France) automated system. A total of 4492 wound cultures were evaluated. Microorganisms were isolated from 55 % of the specimens; 42 % in 2014, 54.1 % in 2015 and 65.1 % in 2016. The most common bacteria in wound cultures were Escherichia coli, followed by Staphylococcus aureus and Pseudomonas spp. Pseudomonas spp. (16.5 %) was most frequently isolated from intensive care unit. S.aureus was the most frequently isolated bacteria from pediatric and internal medicine units (31.1 % and 16.1 % respectively), and E.coli was most frequently isolated from surgical sciences (21.4 %). Colistin and carbapenems were detected as the most effective antimicrobials against E.coli isolates. Of the S.aureus isolates, 18.4 % were methicillin resistant, and no glycopeptide or linezolid resistance was detected. Isolation of different microorganisms from each clinic has shown that regular surveillance studies and antimicrobial susceptibility testingare a necessity for rational antimicrobial use in this direction.