2009, Number 4
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ABSTRACTObjective. To determine the microbiology of diabetic foot wounds, through biopsy cultures. Materials and methods. Patients with diabetic foot and clinical data of infection were re cruited consecutively. Cultures were processed for aerobic or ganisms after mortar homogenization. For cases with multiple isolates, only the two predominant organisms were identified. The bacterial identification was carried out by biochemical pro cedures. The sensitivity to antibiotics was made by the disk dif fusion method. Results. A total of 91 biopsies were studied, 47 from men (52%). There were 102 isolates, 68 being Gram nega tive bacilli (67%), with predominance of Escherichia coli (21%). A total of 28 Gram positive cocci were isolated (28%) and 6 yeasts (6%). Of the 68 Gram negative bacilli, 24 were resistant to ciprofloxacin (35%). A total of 55 Enterobacteriaceae were isolated, of which 4 (7%) produced extended spectrum beta lac tamases. There were 8 Staphylococcus aureus isolates, 3 of which (38%) were resistant to methicillin. Conclusions. In comparison with reports from industrialized countries, we found a higher proportion of Gram negative and resistant or ganisms.
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