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The Utility of Procalcitonin as a Biomarker to Limit the Duration of Antibiotic Therapy in Adult Sepsis Patients

R. Chamberlain,B. Shayota,C. Nyberg,P. Sridharan

Published 2014 in Surgical Science

ABSTRACT

Introduction: With rising global antibiotic resistance, stewardship programs aimed at controlling multi-drug resistant (MDR) pathogens have begun to gain acceptance. These programs stress appropriate antibiotic selection, dosage and duration. A growing literature suggests serum procalcitonin (PCT) levels may be useful in guiding antibiotic duration and de-escalation. This report sought to evaluate the evidence-based data available from prospective randomized controlled trials (RCT) on the role of PCT in guiding reductions in antibiotic duration in adult sepsis patients. Methods: A comprehensive search of all published prospective RCT(s) on the use of PCT as a tool for guiding antibiotic therapy in adult sepsis patients was conducted using PubMed, Medline Plus and Google Scholar (2007-2013). Keywords searched included, “procalcitonin”, “sepsis-therapy”, “sepsis biomarker”, “antibiotic duration”, “drug de-escalation”, and “antimicrobial stewardship”. Results: Four RCT(s) involving 826 adult sepsis patients have evaluated the role of serum PCT levels to guide criteria for cessation of antibiotic therapy based either on specific PCT levels or PCT kinetics. Bouadma et al. (N = 621) stopped antibiotics when the PCT concentration was  et al. (N = 27) discontinued antibiotics if clinical signs of infection improved and the PCT value decreased to  et al. (N = 110) ceased antibiotics when the PCT decreased to 1 ng/mL. The PCT arm showed a 2-day reduction in antibiotics. Finally, Nobre et al. (N = 68) stopped antibiotics when PCT levels decreased by 90% or more from the initial value, but not prior to Day 3 (if baseline PCT measured p

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