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  • Title: Hospital-acquired Clostridium difficile-associated disease in the intensive care unit setting: epidemiology, clinical course and outcome.
    Author: Marra AR, Edmond MB, Wenzel RP, Bearman GM.
    Journal: BMC Infect Dis; 2007 May 21; 7():42. PubMed ID: 17517130.
    Abstract:
    BACKGROUND: Clostridium difficile-associated disease (CDAD) is a serious nosocomial infection, however few studies have assessed CDAD outcome in the intensive care unit (ICU). We evaluated the epidemiology, clinical course and outcome of hospital-acquired CDAD in the critical care setting. METHODS: We performed a historical cohort study on 58 adults with a positive C. difficile cytotoxin assay result occurring in intensive care units. RESULTS: Sixty-two percent of patients had concurrent infections, 50% of which were bloodstream infections. The most frequently prescribed antimicrobials prior to CDAD were anti-anaerobic agents (60.3%). Septic shock occurred in 32.8% of CDAD patients. The in-hospital mortality was 27.6%. Univariate analysis revealed that SOFA score, at least one organ failure and age were predictors of mortality. Charlson score >/=3, gender, concurrent infection, and number of days with diarrhea before a positive C. difficile toxin assay were not significant predictors of mortality on univariate analysis. Independent predictors for death were SOFA score at infection onset (per 1-point increment, OR 1.40; CI95 1.13-1.75) and age (per 1-year increment, OR 1.10; CI95 1.02-1.19). CONCLUSION: In ICU patients with CDAD, advanced age and increased severity of illness at the onset of infection, as measured by the SOFA score, are independent predictors of death.
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