Journal
AMERICAN JOURNAL OF MEDICINE
Volume 122, Issue 3, Pages 281-U116Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.amjmed.2008.09.040
Keywords
Bacteremia; Fever; Health care; S. aureus; Score
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Funding
- Inhibitex, Inc
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BACKGROUND: Although Staphylococcus aureus bacteremia is a common, serious infection, accurately identifying febrile patients with this diagnosis at the time of initial evaluation is difficult. The purpose of this investigation was to define clinical characteristics present at the time of the initial recognition of fever that were associated with the presence of any bloodstream infection and, in particular, with S. aureus bacteremia. METHODS: All patients > 18 years of age with a new episode of health care-associated fever (temperature >= 38 degrees C) and at least one blood culture drawn were eligible for enrollment into this prospective multicenter cohort study. Multivariable analyses were conducted and internally validated scoring systems were developed to categorize the risk of bacteremia. RESULTS: Of 1015 patients enrolled, 181 patients (17.8%) had clinically significant bacteremia, including 77 patients (7.6%) with S. aureus bacteremia. Clinical characteristics associated with S. aureus bacteremia were the presence of a hemodialysis graft or shunt (odds ratio [OR] 3.22; 95% confidence interval [CI], 1.85-5.61), chills (OR 2.38; 95% CI, 1.43-3.98), and a history of S. aureus infection (OR 2.68; 95% CI, 1.38-5.20). Peripheral vascular catheters were inversely associated with S. aureus bacteremia (OR 0.42; 95% CI, 0.26-0.69). Clinical characteristics associated with any bloodstream infection were central venous access, chills, history of S. aureus infection, and hemodialysis access. CONCLUSIONS: Among patients with health care-associated fever, the presence of easily recognizable clinical characteristics at the time of obtaining the initial blood cultures can help to identify patients at increased risk for any bloodstream infection, in particular for S. aureus bacteremia. (C) 2009 Elsevier Inc. All rights reserved. The American Journal of Medicine (2009) 122, 281-289
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