Prevalence of Acinetobacter Species and Its Antibiogram Pattern in a Tertiary Care Hospital, Tirupati, Andhra Pradesh

Background: The species belonging to the genus Acinetobacter are currently reported as opportunistic pathogens and shows multidrug resistance in hospitalized patients. The aim of this study was to isolate the clinical Acinetobacter species from NFGNB (Non Fermentative Gram Negative Bacilli) other than Pseudomonas and analyze their antibiogram (antibiotic susceptibility) patterns. This study helps to know the persistence of antibiotic resistance and decide the optional treatment feasible for Acinetobacter infections. Materials and Methods: Acinetobacter species were isolated and identified by standard methods. For isolated cultures antibiotic susceptibility pattern was determined by the standard disc diffusion method (Kirby-Bauer’s disc diffusion method). Results: The total number of Acinetobacter species isolated during one year period was 235 (79.93%) from 294 NFGNB. The Acinetobacter species was predominant in catheter tip 95 (40.42%) followed by pus 42 (17.87%), samples. This study shows first-rate susceptibility to tigecycline (100%) and followed by imipenem 73.18%. Conclusion: This study states that there is an emergence of Acinetobacter species with increased rate of multidrug resistance in the area of study. Hence, it is important to determine Acinetobacter species form NFGNB in the neglected area and do further antibiotic susceptibility test for accurate treatment.