Genus Klebsiella: Infections Encountered in a General Surgery Department and Antimicrobial Drugs Susceptibility...

Klebsiella species, particularly Klebsiella pneumoniae, are among the most frequently isolated Gram-negative pathogens in surgical departments, associated with a growing trend in multidrug resistance. To identify the types of infections caused by Klebsiella spp. in a general surgery department and to analyze their antimicrobial susceptibility patterns. This retrospective observational study includes bacteriological cultures collected from surgical inpatients between October 2016 and December 2024. Only cases with confirmed Klebsiella spp. isolation were included. Specimen types, infection categories, and antibiotic susceptibility profiles were extracted and analyzed. A total of 138 Klebsiella-positive cultures were identified. Clinical characteristics were analyzed in 38 patients with complete records. The most common infection types included surgical site infections (SSIs), intra-abdominal infections, and biliary tract infections. Sensitivity was highest to carbapenems, while marked resistance was observed to ampicillin-sulbactam and third-generation cephalosporins. Some isolates exhibited ESBL or carbapenemase-producing phenotypes. Reported colistin non-susceptibility was elevated in our cohort; however, these results should be interpreted cautiously because the reference broth microdilution method was not systematically documented. The findings underscore the importance of local surveillance of Klebsiella spp. in surgical settings to info rm empirical treatment and control the spread of multidrug-resistant organisms.