Clinic microbiological study of acinetobacter species infection in a tertiary care hospital

Objectives: To study the prevalence of Acinetobacter species infection, its antibiogram,
and associated risk factors. Methods: Retrospective time-bound study for 6 months. The
study includes 85 clinical isolates of Acinetobacter species isolated from various
specimens. The identification and antibiotic susceptibility testing by Kirby Bauer Disk
Diffusion method and Vitek Compact system 2. Results: Maximum isolation of
Acinetobacter species was from Sputum (32.9%), BAL (21.1%), Urine (17.64%), Blood
(11.7%), and others(16.47%).The species was most sensitive to colistin (97.64%) and
polymyxin B (99.99%). The species was most resistant to Ciprofloxacin (96.4%) and
Ceftriaxone (92.9%). The common risk factors include Immunosuppressed individuals,
comorbid conditions, indiscriminate antibiotic usage, and prolonged ICU stays.
Conclusion: Acinetobacter has emerged as a major hospital-acquired pathogen.
Antibiotic resistance increased. The availability of an antibiogram against A. baumannii is
important for effective treatment and minimizing the emergence of antibiotic resistance.
So, Proper antibiotic stewardship is required to abbreviate antibiotic resistance.