An institutional review of antimicrobial stewardship interventions.

In order to combat increasing rates of bacterial resistance, many institutions have implemented antimicrobial stewardship programmes (ASPs) to improve antibiotic use. To ascertain the potential impact of our stewardship programme at Baylor St Luke's Medical Center (Houston, TX), antimicrobial-related interventions were analysed over a 4-year period. ASP recommendations related to antimicrobial therapy from 2009 to 2012 were retrieved from the hospital electronic database and were retrospectively reviewed. The number of interventions for each time period was adjusted to the hospital census data. The interventions were randomly assessed and categorised for clinical significance based on established institutional guidelines. In total, 14654 non-duplicate antimicrobial therapy interventions were retrieved, of which 11874 (81.0%) were audited for accuracy. Approximately 13 interventions were made per 1000 patient-days, but there were no significant patterns observed regarding the number of interventions performed from month to month (range 8-21). The most frequent types of interventions were related to inappropriate dosing (39.0%), antimicrobial selection (20.5%) and drug allergy (13.0%). Serious adverse drug events (ADEs) were potentially avoided in 20.7% of all interventions. Cumulative potential cost avoidance was more than US$6.5 million. In our institution, proper drug and dose selection were the major components of the ASP. Without focusing solely on reduction of drug acquisition costs, implementation of an ASP could still be cost effective by improving the quality of patient care and avoiding ADEs with serious consequences.

Antibiogram compliance in University HealthSystem Consortium participating hospitals with Clinical and Laboratory Standards Institute guidelines.

PURPOSE: The degree of compliance with antibiogram guidance among University HealthSystem Consortium (UHC) hospitals was analyzed. METHODS: The UHC Pharmacy Council Pharmacy Practice Advancement Committee conducted a survey to evaluate hospital policies regarding the generation, reporting, and utilization of antibiograms among UHC hospitals. The survey was distributed via a UHC online survey tool to pharmacy directors at 237 UHC hospitals. Responses were collected from April 13 to May 14, 2010. RESULTS: Of the 237 hospitals to which surveys were sent, 49 hospitals (21%) from 28 states submitted survey responses. Forty-eight hospitals reported that they routinely generated antibiograms, and 36 reported that they adopted all or most of the standards recommended by the 2009 guidelines on antibiograms published by the Clinical and Laboratory Standards Institute (CLSI). The compliance rates to the four key CLSI recommendations were as follows: 98% reported data at least annually, 89% eliminated duplicate isolates, 83% did not include surveillance isolates, and 64% required at least 30 isolates for each reported species. Thirty-eight hospitals had an antimicrobial stewardship program; 35 of them formally reviewed antibiograms and 19 implemented new programs based on the antibiogram data. In 16 hospitals, formulary changes were made as a consequence of antibiogram results. In 30 hospitals, pharmacists had significant involvement in compiling, reviewing, and reporting antibiograms. CONCLUSION: Among respondents from 47 UHC hospitals, the compliance rates to four key CLSI recommendations for antibiograms ranged from 64% to 98%. Respondents from 30 hospitals reported significant involvement of pharmacists in compiling, reviewing, and reporting antibiograms.