Antibiotic Susceptibility Pattern of Gram-Negative Bacteria Isolated From Elderly Patients Infected with Urinary Tract Infections Al-Najaf City, Iraq
Background: Urinary tract infection is one of the most important diseases infect all individuals groups mainly
elderly women and men worldwide. Objective: The aim of the present study was to detect the antibiotic susceptibility
patterns of gram-negative bacteria isolated from elderly patients infected with urinary tract infection in Al-Najaf City, Iraq.
Materials and methods: A total of 120 urine samples were collected from elderly patients infected with UTI in Al-Najaf City,
Iraq. The antibiotic susceptibility testing was done according to Kirby-Bauer method. Results: One hundred and twenty six
of different Gram-Negative bacterial strains were isolated. E.coli was the most predominant bacteria followed by K.
pneumoniae, P. aeruginosa, C. freundii , E. aerogenes and P. mirabilis .Most bacterial isolates were highly resistant against
most antibiotics especially against amoxicillin and third generation cephalosporin’s. While, imipenem provided best
antibacterial effect against most isolates Conclusions: This study demonstrated that most bacterial isolates from elderly
patients with urinary tract infection became highly resistant to most antimicrobials.
Keywords- Gram Negative Bacteria, UTI, Antibiotics, Elderly Patients, Najaf City, Iraq.