• Bryan M Bishop, John J Bon, Tamara L Trienski, Timothy R Pasquale, Bradley R Martin, and Thomas M File.
• Summa Health System, Akron City Hospital, Akron, OH, USA.
• Ann Pharmacother. 2014 May 1;48(5):577-83.

BackgroundUtilizing procalcitonin (PCT) levels to limit antimicrobial overuse would be beneficial from a humanistic and economic perspective.ObjectiveTo assess whether introducing PCT at a teaching hospital reduced antimicrobial exposure in critically ill patients.MethodsPatients wereadmitted to the intensive care unit (ICU) for >72 hours with sepsis and/or pneumonia. PCT levels were drawn on admission to the ICU or with new suspected infection, with at least 1 PCT level being drawn at least 48 hours later. Patients were matched in a 1:1 fashion to historical patients on age, Acute Physiology and Chronic Health Evaluation II (APACHE II) score, gender, and primary diagnosis. The primary outcome was duration of initial antimicrobial exposure defined as days from initiation of antimicrobial therapy to the intentional discontinuation of therapy by the physician. Secondary end points included length of stay, readmission to the hospital, and relapse of infection.ResultsThere were 50 patients in the PCT group and 50 patients in the historical group. The initial duration of antimicrobials was 10 (±4.9) days compared with 13.3 (±7.2), which was statistically significant (P = .0238). The duration of stay in the hospital (13.5 compared with 17.8 days; P = .0299), readmission to the hospital (9 compared with 17; P = .055), and relapse of infection (3 compared with 11; P = .02) were seen less in the PCT group compared with controls.ConclusionIntroducing PCT levels resulted in a shorter duration of initial antimicrobial therapy and was not associated with adverse treatment outcomes.

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