The impact of computerized provider order entry on medication errors in a multispecialty group practice.

OBJECTIVE: Computerized provider order entry (CPOE) has been shown to improve patient safety by reducing medication errors and subsequent adverse drug events (ADEs). Studies demonstrating these benefits have been conducted primarily in the inpatient setting, with fewer in the ambulatory setting. The objective was to evaluate the effect of a basic, ambulatory CPOE system on medication errors and associated ADEs. DESIGN: This quasiexperimental, pretest-post-test study was conducted in a community-based, multispecialty health system not affiliated with an academic medical center. The intervention was a basic CPOE system with limited clinical decision support capabilities. MEASUREMENT: Comparison of prescriptions written before (n=5016 handwritten) to after (n=5153 electronically prescribed) implementation of the CPOE system. The primary outcome was the occurrence of error(s); secondary outcomes were types and severity of errors. RESULTS: Frequency of errors declined from 18.2% to 8.2%-a reduction in adjusted odds of 70% (OR: 0.30; 95% CI 0.23 to 0.40). The largest reductions were seen in adjusted odds of errors of illegibility (97%), use of inappropriate abbreviations (94%) and missing information (85%). There was a 57% reduction in adjusted odds of errors that did not cause harm (potential ADEs) (OR 0.43; 95% CI 0.38 to 0.49). The reduction in the number of errors that caused harm (preventable ADEs) was not statistically significant, perhaps due to few errors in this category. CONCLUSIONS: A basic CPOE system in a community setting was associated with a significant reduction in medication errors of most types and severity levels.

Strategies to optimize medication use in the physician group practice: the role of the clinical pharmacist.

OBJECTIVES: To (1) describe the role of clinical pharmacists in providing population-based pharmaceutical care as employees of a physician group practice, (2) describe the strategies used by pharmacists to optimize medication use, (3) quantify improvements in care, and (4) illustrate the calculations used to quantify cost savings. SETTING: Community-based, multispecialty, physician group practice located in the north Puget Sound area between 2003 and 2007. PRACTICE DESCRIPTION: Using four cornerstones (evidence-based medicine, therapeutic interchange, academic detailing, and a local pharmacy and therapeutics committee), the pharmacists provided population-based pharmaceutical care, leading generic switches, target drug programs, and prescription to over-the-counter medication switches. They also led disease management programs, managed drug recalls, implemented electronic health records, negotiated budgets with health plans, and led patient assistance programs and prior authorization programs to improve patient satisfaction. PRACTICE INNOVATION: Implementing these strategies from the vantage point of a physician group presents a seldom-realized employment opportunity for pharmacists. MAIN OUTCOME MEASURES: The impact of these strategies is measured by process, use, and clinical outcomes metrics. These, in turn, are linked to incentive payments in the pay-for-performance environment or to a lowered per member, per month cost in the capitated environment. RESULTS: In 2006-2007, 71% of our hypertensive patients received generic agents compared with a network average for receiving generic agents of 43%, while the proportion of patients with controlled blood pressure increased from 45% to 60%. We saved $450,000 in inpatient costs for deep venous thrombosis. CONCLUSION: Clinical pharmacists employed in a physician group practice can optimize medication use, improve care, and reduce costs.