Characterization of Bacterial Isolates and Antibiotic Susceptibility Testing in General Surgery Patients
Analisis Pola Bakteri dan Pola Sensivitas Antibiotik pada Pasien Bedah Umum
DOI:
https://doi.org/10.53342/pharmasci.v11i1.563Keywords:
Pola Bakteri,, Bedah Umum,, Sensitivitas Antibiotik,, ESBL,, MRSA,Abstract
Antimicrobial resistance represents a critical global health challenge with disproportionate effects on resource-limited healthcare systems. Suboptimal antibiotic prescribing practices contribute to the emergence and dissemination of multidrug-resistant pathogens. This investigation sought to characterize bacterial distribution patterns and antimicrobial susceptibility profiles among general surgery patients, while examining associations between predisposing factors and resistant microorganisms. We conducted a descriptive cross-sectional observational study spanning January 2020 through June 2023, enrolling general surgery patients meeting predetermined inclusion criteria. Among 443 patients with positive bacterial cultures, the predominant isolates included coagulase-negative staphylococci (n=69, 16%), methicillin- resistant Staphylococcus aureus (MRSA; n=23, 5%), extended-spectrum beta-lactamase (ESBL)- producing Escherichia coli (n=87, 24%), ESBL-producing Klebsiella pneumoniae (n=17, 4%), non-ESBL E. coli (n=64, 14%), and non-ESBL K. pneumoniae (n=46, 10%). Antimicrobial susceptibility testing revealed that meropenem, moxifloxacin, tigecycline, and piperacillin/tazobactam demonstrated efficacy against ESBL- producing K. pneumoniae and E. coli. For MRSA isolates, effective agents included piperacillin/tazobactam, rifampicin, vancomycin, and quinupristin/dalfopristin. Ceftriaxone was the most frequently prescribed antibiotic for patients with ESBL and MRSA-positive cultures.
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