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- Title
Changing Results to Change Results: Nudging Antimicrobial Prescribing for Clostridium difficile.
- Authors
Herman, Dakoda J; Sarabia, Alicia; Chan, Helen; Graham, Christopher
- Abstract
Background Patients who test positive for Clostridium difficile by polymerase chain reaction (PCR), with a negative toxin enzyme immunoassay (EIA), are commonly colonized and do not require treatment. However, clinicians often treat based on a positive PCR result regardless of the toxin EIA result. We evaluated the clinical impact of a microbiology reporting nudge, changing from a report that included both assay results along with treatment recommendations to one that suggested clinicians consider C difficile colonization or early infection. Methods We conducted a retrospective cohort study of all adult patients admitted to a large multisite community hospital with a positive C difficile PCR result and negative toxin EIA from January 1, 2016 to June 30, 2018. We examined total days of therapy (DOT) and impacts on clinical outcomes. Results One hundred ninety-nine episodes occurred preintervention and 165 episodes occurred postintervention. The mean DOTs per episode decreased from 13.6 to 7.9 days (difference −5.8 days; 95% confidence interval, −3.9 to −7.6) postintervention, with statistical process control charts suggesting special cause variation. Patients receiving no treatment increased from 6.5% to 23.6% postintervention (P < .0001). No significant changes in subsequent toxin positive disease (9.0% vs 6.7%), colectomy (0% vs 0.6%), mortality (7.5% vs 12.1%), or length of stay (18.5 vs 16 days) were observed. Conclusions Microbiology reporting nudges raising the possibility of C difficile colonization were associated with altered prescribing, reinforcing a postanalytic strategy for invoking change. Decreases in antimicrobial prescribing occurred without increasing subsequent disease or other adverse outcomes, suggesting a safe strategy for decreasing unnecessary treatment of C difficile colonization.
- Subjects
CLOSTRIDIOIDES difficile; STATISTICAL process control; TREATMENT effectiveness; ENZYME-linked immunosorbent assay; MEDICAL microbiology
- Publication
Open Forum Infectious Diseases, 2021, Vol 8, Issue 6, p1
- ISSN
2328-8957
- Publication type
Article
- DOI
10.1093/ofid/ofaa605