Impact of a Multimodal Antimicrobial Stewardship Program on Pseudomonas aeruginosa Susceptibility and Antimicrobial Use in the Intensive Care Unit Setting.

Objective. To study the impact of our multimodal antibiotic stewardship program on Pseudomonas aeruginosa susceptibility and antibiotic use in the intensive care unit (ICU) setting. Methods. Our stewardship program employed the key tenants of published antimicrobial stewardship guidelines. These included prospective audits with intervention and feedback, formulary restriction with preauthorization, educational conferences, guidelines for use, antimicrobial cycling, and de-escalation of therapy. ICU antibiotic use was measured and expressed as defined daily doses (DDD) per 1,000 patient-days. Results. Certain temporal relationships between antibiotic use and ICU resistance patterns appeared to be affected by our antibiotic stewardship program. In particular, the ICU use of intravenous ciprofloxacin and ceftazidime declined from 148 and 62.5 DDD/1,000 patient-days to 40.0 and 24.5, respectively, during 2004 to 2007. An increase in the use of these agents and resistance to these agents was witnessed during 2008-2010. Despite variability in antibiotic usage from the stewardship efforts, we were overall unable to show statistical relationships with P. aeruginosa resistance rate. Conclusion. Antibiotic resistance in the ICU setting is complex. Multimodal stewardship efforts attempt to prevent resistance, but such programs clearly have their limits.

Effect of a patient care partnership project on cost and quality of care at an academic teaching hospital.

BACKGROUND: In 1998, the Patient Care Partnership Project was conducted by general internal medicine physicians and hospital administration in an academic health care center. The project was designed to optimize cost, quality, and service results to inpatients. METHODS: The project focused on improved communication among physicians, a nurse discharge planner, and hospital administration regarding appropriate resource utilization. The outcomes were average cost per inpatient, length of hospital stay, 30-day readmission rates, mortality rates, and resident and patient satisfaction. Comparisons were made with three control groups. RESULTS: The postintervention generalist-staffed services showed significant reductions in average costs per patient and length of stay. These parameters increased in the specialist group from 1997 to 1998. Readmission rates remained stable, and mortality rates actually decreased. Patient and resident satisfaction remained unchanged. CONCLUSIONS: A collaborative effort between generalists and hospital administration led to a significant improvement in resource utilization compared with the three control groups, with no compromise in quality outcomes.