Characteristics of Acinetobacter baumannii isolated at Viet Tiep Hospital in 2024

Abstract

Objectives: To describe some characteristics and determine the antibiotic resistance characteristics of A. baumannii bacteria isolated at Viet Tiep Hospital in 2024. Subjects and methods: A cross-sectional descriptive study was conducted on 418 A. baumannii strains isolated at Viet Tiep Hospital, from January to December 2024. The strains were analyzed for demographic distribution, clinical sources, and antimicrobial resistance patterns. Results: A total of 418 A. baumannii strains were isolated, accounting for 7.87% of all clinical isolates. Infections were more common in patients aged ≥ 60 and in males. The majority of isolates were obtained from the ICU (77.03%) and predominantly from respiratory specimens (71.53%). High resistance rates (>63%) were observed against most tested antibiotics, with levofloxacin showing the highest resistance rate (82.14%). Strains from respiratory samples and ICU settings exhibited higher resistance compared to those from blood specimens and other departments. Conclusion: A. baumannii was predominantly isolated from elderly male patients in the ICU, with respiratory specimens being the most common source. The high levels of antimicrobial resistance, particularly in ICU and respiratory isolates, highlight the urgent need for strengthened infection control and antimicrobial stewardship measures.