Prospective audit for antimicrobial stewardship in intensive care: impact on resistance and clinical outcomes.

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Prospective audit for antimicrobial stewardship in intensive care: impact on resistance and clinical outcomes.

Am J Infect Control. 2012 Aug;40(6):526-9

Authors: DiazGranados CA

Abstract
BACKGROUND: The impact of antimicrobial audit and feedback on outcomes of critically ill adults is unclear.
METHODS: A prospective study was performed in the intensive care units (ICU) of a public hospital in Atlanta, GA. Critically ill adults receiving empiric imipenem or piperacillin-tazobactam were eligible. Outcomes for 3 periods were compared: baseline (B, February to May 2006), model 1 (M1, October 2006 to July 2008), and model 2 (M2, September 2008 to February 2009). No audit was performed during B. During M1, an infectious diseases physician evaluated patients, and a critical care pharmacist communicated recommendations to the treating team. During M2, an infectious diseases physician directly participated in interdisciplinary rounds with the medical ICU team.
RESULTS: One hundred ninety-four patients were included during B, 415 during M1, and 83 during M2. M1 and M2 were associated with appropriate antimicrobial selection (B, 70%; M1, 78%; M2, 82%; P = .042) and with lower rates of resistance (B, 31%; M1, 25%; M2, 17%; P = .033). Logistic regression analysis confirmed that audit and feedback were independently associated with appropriate antimicrobial selection and prevention of resistance. The association remained strongest for M2.
CONCLUSION: Audit and feedback had an influence on antimicrobial prescription patterns in the ICU with a favorable impact on the emergence of resistance.

PMID: 21937145 [PubMed - indexed for MEDLINE]

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