Abstract
IntroductionA large number of antibiotics are used for the treatment of uncomplicated cystitis owing to its high morbidity. As the administration of antibiotics for uncomplicated cystitis may be considered an example of inappropriate use, outpatient antimicrobial stewardship for this condition is important. We evaluated the current pharmacoepidemiology trends for the treatment of uncomplicated cystitis in Japan to predict stewardship strategies. MethodsThis descriptive observational study analyzed data from an anonymized claims database of employees and their family members covered by the employer’s health insurance. We identified female outpatients diagnosed with acute cystitis (ICD-10 code N300) aged ≥15 years and extracted oral antibiotic prescription records between 2013 and 2016. We excluded prescriptions for >7 days. ResultsThe most prescribed antibiotic category was fluoroquinolones (52.67%), followed by cephalosporins and penems (40.63%). Third-generation cephalosporins accounted for 90.91% of cephalosporin and penem prescriptions. The most common duration of antibiotic prescription was 5 days, except for first-generation cephalosporins, penem (7 days) and sulfamethoxazole and trimethoprim (3 days). ConclusionFluoroquinolones and third-generation cephalosporins were prescribed to most uncomplicated cystitis cases in Japan. Although the lack of alternatives to quinolones and beta-lactams in Japan is an obstacle for antimicrobial stewardship for uncomplicated cystitis, promoting accurate diagnoses and establishing alternatives available in the Japanese market are important. Shortening the treatment duration is also an important strategy. Further research is needed on local antimicrobial resistance patterns to determine a fixed treatment strategy for uncomplicated cystitis.
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