Lack of improvement in antimicrobial prescribing after a diagnosis of Clostridium difficile and impact on recurrence

American Journal of Infection Control
Richard L Watson, Christopher J Graber

Abstract

Antimicrobial use is one of the largest modifiable risk factors for development of Clostridium difficile infection (CDI). We sought to determine if a recent diagnosis of CDI affected the appropriateness of subsequent antimicrobial prescribing. This study is a retrospective electronic chart review of the Greater Los Angeles Veterans Administration. Medication administration records were reviewed for all patients with new CDI from 2015-2016 to determine the appropriateness (drug choice, duration, and dosage) of all non-CDI antimicrobials prescribed within 90 days pre- and post-initial CDI (iCDI) positive testing. Of the 210 patients diagnosed with new-onset iCDI, 140 met inclusion criteria. Of antimicrobial courses prescribed, 40.6% of pre-iCDI were inappropriate compared with 43.1% of post-iCDI, demonstrating no difference in prescribing habits (P = .717). Thirty-three patients developed recurrent CDI (rCDI). After adjustment for other known risk factors, inappropriate antimicrobial use was associated with a significant increased risk of recurrence compared with appropriate use alone (odds ratio [OR], 6.19; 95% confidence interval [CI], 1.45-26.42). Antimicrobial use in general was associated with increased recurrence compared w...Continue Reading

Citations

Dec 18, 2019·Infection Control and Hospital Epidemiology : the Official Journal of the Society of Hospital Epidemiologists of America·Michelle T HeckerCurtis J Donskey

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