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Effectiveness of Probiotic for Primary Prevention of Clostridium difficile Infection: A Single-Center Before-and-After Quality Improvement Intervention at a Tertiary-Care Medical Center

Published online by Cambridge University Press:  26 April 2018

William E. Trick*
Affiliation:
Department of Medicine, Cook County Health & Hospitals System, Chicago, Illinois
Stephen J. Sokalski
Affiliation:
Division of Infectious Diseases, Advocate Christ Medical Center, Oak Lawn, Illinois
Stuart Johnson
Affiliation:
Loyola University Medical Center, Maywood, Illinois
Kristen L. Bunnell
Affiliation:
College of Pharmacy, University of Illinois, Chicago, Illinois
Joseph Levato
Affiliation:
Division of Infectious Diseases, Advocate Christ Medical Center, Oak Lawn, Illinois
Michael J. Ray
Affiliation:
Department of Medicine, Cook County Health & Hospitals System, Chicago, Illinois
Robert A. Weinstein
Affiliation:
Department of Medicine, Cook County Health & Hospitals System, Chicago, Illinois
*
Address correspondence to William E. Trick, MD, Collaborative Research Unit, 1900 W Polk Street, Ste 1600, Chicago, IL 60612 ([email protected]).

Abstract

OBJECTIVE

To evaluate probiotics for the primary prevention of Clostridium difficile infection (CDI) among hospital inpatients.

DESIGN

A before-and-after quality improvement intervention comparing 12-month baseline and intervention periods.

SETTING

A 694-bed teaching hospital.

INTERVENTION

We administered a multispecies probiotic comprising L. acidophilus (CL1285), L. casei (LBC80R), and L. rhamnosus (CLR2) to eligible antibiotic recipients within 12 hours of initial antibiotic receipt through 5 days after final dose. We excluded (1) all patients on neonatal, pediatric and oncology wards; (2) all individuals receiving perioperative prophylactic antibiotic recipients; (3) all those restricted from oral intake; and (4) those with pancreatitis, leukopenia, or posttransplant. We defined CDI by symptoms plus C. difficile toxin detection by polymerase chain reaction. Our primary outcome was hospital-onset CDI incidence on eligible hospital units, analyzed using segmented regression.

RESULTS

The study included 251 CDI episodes among 360,016 patient days during the baseline and intervention periods, and the incidence rate was 7.0 per 10,000 patient days. The incidence rate was similar during baseline and intervention periods (6.9 vs 7.0 per 10,000 patient days; P=.95). However, compared to the first 6 months of the intervention, we detected a significant decrease in CDI during the final 6 months (incidence rate ratio, 0.6; 95% confidence interval, 0.4–0.9; P=.009). Testing intensity remained stable between the baseline and intervention periods: 19% versus 20% of stools tested were C. difficile positive by PCR, respectively. From medical record reviews, only 26% of eligible patients received a probiotic per the protocol.

CONCLUSIONS

Despite poor adherence to the protocol, there was a reduction in the incidence of CDI during the intervention, which was delayed ~6 months after introducing probiotic for primary prevention.

Infect Control Hosp Epidemiol 2018;765–770

Type
Original Article
Copyright
© 2018 by The Society for Healthcare Epidemiology of America. All rights reserved. 

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