J Korean Soc Emerg Med.  2022 Oct;33(5):480-486.

Acute uncomplicated cystitis in the emergency department: prevalence of antimicrobial resistance among uropathogens and appropriate antimicrobial treatment

Affiliations
  • 1Department of Emergency Medicine, Daejin Medical Center, Bundang Jesaeng General Hospital, Seongnam, Korea

Abstract


Objective
This study analyzed the urine cultures of emergency department patients diagnosed with acute uncomplicated cystitis and determined the antimicrobial resistance and appropriate treatment for our region.
Methods
Results of urine analysis and urine culture of acute uncomplicated cystitis patients diagnosed in our emergency department between January 2019 and December 2020 were examined and analyzed.
Results
In our study, 256 out of 340 urine culture samples (75.3%) were positive for cystitis. The most common microorganism was reported to be Escherichia coli (93.0%). The resistance rates of E. coli to the following antimicrobial agents were as follows: amikacin (0.0%), ampicillin (63.5%), amoxicillin/clavulanate (15.6%), aztreonam (7.1%), ceftazidime (3.4%), cefotaxime (16.4%), cefoxitin (5.5%), cefazolin (19.9%), ciprofloxacin (29.4%), cefepime (1.7%), ertapenem (0.0%), gentamicin (18.1%), piperacillin/tazobactam (2.1%), trimethoprim/sulfamethoxazole (36.1%), and tigecycline (0.4%). The prevalence of extended-spectrum beta-lactamase producing E. coli strains was 17.8%.
Conclusion
To determine the proper empirical antimicrobial treatment for acute uncomplicated cystitis, it is essential to examine the antimicrobial resistance. For our region, fosfomycin, nitrofurantoin, and 2nd and 3rd generation cephalosporin should be considered the first-line empirical treatment for acute uncomplicated cystitis.

Keyword

Cystitis; Antibiotics; Drug resistance; Emergency department
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