Emergence of Antibiotic-Resistant Infections in ICU Patients
Abstract
The fate of critically ill patients with infections in intensive care units (ICUs) is significantly influenced by antimicrobial resistance, which has become a serious concern in developing nations. This observational study, conducted over a 12-month period from January 2021 to December 2021, aimed to track the pattern of antibiotic resistance among patients admitted to the ICU. Among the 200 patients, the most common main diagnoses were aspiration pneumonia (29%) and diabetes mellitus (24%). Out of 250 samples, 65 samples (26%) yielded 85 bacterial isolates. The most frequently found sites of infection were tracheal aspirate (64.71%) and urine (14.12%). From the tracheal aspirate samples, the most frequently isolated microorganisms were Pseudomonas spp. (30.59%), Escherichia coli (24.71%), Acinetobacter spp. (20%), and Klebsiella spp. (14.12%). The antibiotics with the highest overall resistance patterns were levofloxacin (68.24%), amikacin (64.71%), meropenem (49.41%), ceftazidime (75.29%), ciprofloxacin (78.82%), and gentamicin (82.35%). The most effective antibiotic against Klebsiella species was meropenem (64.61%), while Acinetobacter species were mostly susceptible to cotrimoxazole (64.67%) and piperacillin + tazobactam (60.50%). Escherichia coli showed the highest susceptibility to netilmicin (70.48%) and meropenem (49.32%), whereas Pseudomonas spp. were mostly responsive to colistin (55.14%) and netilmicin (52.25%). Antibiotic resistance is common among ICU patients,…
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