Abstract
BackgroundAlthough emergency health-care services, particularly clinical and surgical care, are an important part of the provision of high quality health care in Ethiopia, infections related with surgical care are still the most well-known medical services-related diseases. This study aimed to assess the bacterial profiles and antimicrobial susceptibility pattern of isolates among patients diagnosed with surgical site infections at Mizan-Tepi university teaching hospital, southwest Ethiopia.MethodologyA prospective observational cohort study was conducted from June to September 2021. Patient data were collected using a structured questionnaire. Follow-up of patients who had undergone a surgical procedure was conducted for at least 30 days. Wound swabs were collected from patients suspected to have surgical site infections (SSIs) and cultured onto appropriate culture media. The antimicrobial susceptibility testing was done using the disk diffusion technique. Data were analyzed using SPSS software version 25.0. Frequencies and cross-tabulation were used to summarize descriptive statistics.ResultsIn this study, the postoperative SSIs rate was 12.6%. All patients with SSIs were culture positive, and a total of 41 bacterial isolates were detected. Of these, 73.2% were Gram-negative, 26.8% were Gram-positive and 24.2% were a mixture of two bacterial growths. Escherichia coli accounted for 29.3%, followed by Staphylococcus aureus (19.5%), Proteus species (14.6%) and Pseudomonas aeruginosa (12.2%). With the exceptions of amikacin and meropenem, which exhibited very high sensitivity, ranging from 33.3–100.0% isolates was resistant against all other tested antibiotics. The resistance rate to three or more classes of antibiotics was 100.0%.ConclusionIn this study, the most isolated bacteria causing SSIs were Gram-negative and multidrug-resistant strains. This event highlights that surveillance of the bacterial profile and antibiotic susceptibility pattern coupled with the implementation of the strict protocol for antibiotic use and operative room regulations is important to minimize the burden of SSIs.
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