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Published on: December 8, 2014
Reduced Clostridioides difficile infection in a pragmatic stepped-wedge initiative using admission surveillance to
Lance R Peterson1,2,3, Sean O'Grady4, Mary Keegan5
1Department of Medicine, Division of Infectious Diseases, NorthShore University HealthSystem, Evanston, Illinois, United States of America.
Background:
Clostridioides difficile Infection (CDI) is a persistent healthcare issue. In the US, CDI is the most common infectious cause of hospital-onset (HO) diarrhea.
Objective:
Assess the impact of admission testing for toxigenic C. difficile colonization on the incidence of HO-CDI.
Design:
Pragmatic stepped-wedge Infection Control initiative.
Setting:
NorthShore University HealthSystem is a four-hospital system near Chicago, IL.
Patients:
All patients admitted to the four hospitals during the initiative.
Interventions:
From September 2017 through August 2018 we conducted a quality improvement program where admitted patients had a peri-rectal swab tested for toxigenic C. difficile. All colonized patients were placed into contact precautions.
Measurements:
We tested admissions who: i) had been hospitalized within two months, ii) had a past C. difficile positive test, and/or iii) were in a long-term care facility within six months. We measured compliance with all other practices to reduce the incidence of HO-CDI.
Results:
30% of admissions were tested and 8.3% were positive. In the year prior to the initiative (Period 1) there were 63,057 admitted patients when HO-CDI incidence was 5.96 cases/10,000 patient days. During the 12-month initiative (Period 2) there were 62,760 admissions and the HO-CDI incidence was 4.23 cases/10,000 patient days (p = 0.02). There were no other practice or antibiotic use changes. Continuing admission surveillance provided a HO-CDI incidence of 2.9 cases/10,000 patient days during the final 9 months of 2018 (p<0.0001 compared to Period 1), equaling <1 case/1,000 admissions.
Limitations:
This was not a randomized controlled trial, and multiple prevention practices were in place at the time of the admission surveillance initiative.
Conclusion:
Admission C. difficile surveillance testing is an important tool for preventing hospital-onset C. difficile infection.
Registration:
This quality improvement initiative is registered at ClinicalTrials.gov. The unique registration identifier number is NCT04014608.
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