A Large Outbreak of Clostridium difficile–Associated Disease with an Unexpected Proportion of Deaths and Colectomies at a Teaching Hospital Following Increased Fluoroquinolone Use

By C. Muto, M. Pokrywka, K. Shutt, A. Mendelsohn, K. Nouri, Kathy Posey, Terri L. Roberts, Karen Croyle, Sharon Krystoflak, S. Patel-Brown and 4 more. Infection Control & Hospital Epidemiology, 2005

667 citations recorded by the source corpus.

Abstract Background and Objective: Fluoroquinolones have not been frequently implicated as a cause of Clostridium difficile outbreaks. Nosocomial C. difficile infections increased from 2.7 to 6.8 cases per 1,000 discharges (P < .001). During the first 2 years of the outbreak, there were 253 nosocomial C. difficile infections; of these, 26 resulted in colectomy and 18 resulted in death. We conducted an investigation of a large C. difficile outbreak in our hospital to identify risk factors and characterize the outbreak. Methods: A retrospective case-control study of case-patients with C. difficile infection from January 2000 through April 2001 and control-patients matched by date of hospital admission, type of medical service, and length of stay; an analysis of inpatient antibiotic use; and antibiotic susceptibility testing and molecular subtyping of isolates were performed. Results: On logistic regression analysis, clindamycin (odds ratio [OR], 4.8; 95% confidence interval [CI95], 1.9-12.0), ceftriaxone (OR, 5.4; CI95, 1.8-15.8), and levofloxacin (OR, 2.0; CI95, 1.2-3.3) were independently associated with infection. The etiologic fractions for these three agents were 10.0%, 6.7%, and 30.8%, respectively. Fluoroquinolone use increased before the onset of the outbreak (P < .001); 59% of case-patients and 41% of control-patients had received this antibiotic class. The outbreak was polyclonal, although 52% of isolates belonged to two highly related molecular subtypes. Conclusions: Exposure to levofloxacin was an independent risk factor for C. difficile-associated diarrhea and appeared to contribute substantially to the outbreak. Restricted use of levofloxacin and the other implicated antibiotics may be required to control the outbreak.

Subfields: Applied Microbiology and Biotechnology, Critical Care and Intensive Care Medicine, Infectious Diseases

View Paper: https://www.semanticscholar.org/paper/082747dd5d2c8945fbd874b5deb1628d8f250fe2

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Applied Microbiology and Biotechnology

  1. Victoria J. Fraser

In Critical Care and Intensive Care Medicine

  1. J. Bartlett
  2. Victoria J. Fraser
  3. Didier Pittet

In Infectious Diseases

  1. J. Bartlett
  2. B. Allegranzi
  3. Louis Valiquette
  4. Benoît Cossette
  5. J. Pépin
  6. Didier Pittet
  7. J. H. Morse

Citations in the corpus