Journal
JOURNAL OF CRITICAL CARE
Volume 28, Issue 5, Pages 695-700Publisher
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.jcrc.2013.03.003
Keywords
Augmented renal clearance; 24-hour creatinine clearance; Antibiotic underdosing; Glomerular hyperfiltration
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Introduction: We describe incidence and patient factors associated with augmented renal clearance (ARC) in adult intensive care unit (ICU) patients. Materials and Methods: A prospective observational study in a mixed cohort of surgical and medical ICU patients receiving antimicrobial therapy at the Ghent University Hospital, Belgium. Kidney function was assessed by the 24-hour creatinine clearance (Ccr); ARC defined as at least one Ccr of >130 mL/min per 1.73 m(2). Multivariate logistic regression analysis: to assess variables associated with ARC occurrence. Therapeutic failure (TF): an impaired clinical response and need for alternate antimicrobial therapy. Results: Of the 128 patients and 599 studied treatment days, ARC was present in 51.6% of the patients. Twelve percent permanently expressed ARC. ARC patients had a median Ccr of 144 mL/min per 1.73 m2 (IQR 98-196). Median serum creatinine concentration on the first day of ARC was 0.54 mg/dL (IQR 0.48-0.69). Patients with ARC were significantly younger (P < .001). Age and male gender were independently associated with ARC whereas the APACHE II score was not. ARC patients had more TF (18 (27.3%) vs. 8 (12.9%); P = .04). Conclusion: ARC was documented in approximately 52% of a mixed ICU patient population receiving antibiotic treatment with worse clinical outcome. Young age and male gender were independently associated with ARC presence. (C) 2013 Elsevier Inc. All rights reserved.
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