• Antimicrobial resistance of Escherichia coli isolates from outpatient urinary tract infections in women and male
  • Khatereh Baghdadi,1,*
    1. bozorgmehr laboratory and islamic university


  • Introduction: Escherichia coli is the main cause of community-acquired urinary tract infections (UTIs). The aims of the present study were to examine the susceptibility profile of E. coli causing UTIs and to identify factors associated with antimicrobial resistance.
  • Methods: A cross-sectional study was conducted in Arak City, Iran, between 2022and 2023. Patients referred to Laboratory Bozorgmehr and diagnosed with UTI caused by E. coli were enrolled in the study. Susceptibility testing to commonly used antimicrobial agents was performed by the disk diffusion method. Relevant data were abstracted, and analysis was performed to identify factors associated with antimicrobial resistance. A total of 91 E. coli isolates from 1300clinical urine samples were collected.
  • Results: Overall AMR rates to the commonly used antibiotics nitrofurantoin, Amikacin ,Ceftriaxone,Ceftazidime,Ciprofloxacin,Trimethoprimsulfamethoxazole and Imipeneme,were 3.19%, 4.21% ,23.07%,20.87% ,39.56%,46.1%, 27.47%respectively. The highest overall resistance rates were determined for ampicillin (90.2%), amoxicillin-clavulanic acid (81.1%), The rate of extended-spectrum β-lactamase (ESBL) production was 14.2%.
  • Conclusion: This survey says the cause of high resistant Escherichia coli strainsto Ampicillin antibiotics and amoxicillin-clavulanic are too take this antibiotics. Then, preventing from use of un necessary antibiotics and take care of production new and drastic antibiotics will be recommend.
  • Keywords: Outpatient UTI Escherichia coli Antimicrobial resistance