Nosocomial infections in Tbilisi, Georgia: a retrospective study of microbiological data from 4 major tertiary care hospitals.

摘要

A total of 3,452 available clinical samples were included in the study, and positive findings were documented for 1,607 cultures (46.6%). The most commonly isolated microorganisms included Klebsiella pneumonia (in 26.5% of samples), Pseudomonas aeruginosa (15.2%), Candida albicans (12.3%), Staphylococcus aureus (9%), Escherichia coli (7.6%), and Aci-netobacter baumannii (5.1%). The susceptibility patterns of gram-negative rods (GNRs) to the most commonly used antibiotics are shown in Table 1. Among 95 GNR isolates tested for the presence of extended-spectrum /3-lactamase (ESBL), 33.7% were found to be ESBL carriers. Extensive resistance to different groups of antibiotics was found among GNRs, including resistance to carbapenems. Only 29% and 11.9% of Pseudomonas and Acinetobacter isolates, respectively, were susceptible to imipenem.