Systematic review of medication safety assessment methods

Area of Science:

• Health Services Research
• Patient Safety
• Pharmacovigilance

Background:

• Medication safety is a critical aspect of healthcare quality.
• Accurate assessment of medication errors and adverse drug events (ADEs) is essential for improving patient outcomes.
• Various methodologies exist for assessing medication safety, each with potential strengths and limitations.

Purpose of the Study:

• To systematically review and compare the accuracy, efficiency, and efficacy of four common medication safety assessment methodologies.
• To identify the relative strengths and weaknesses of incident report review, direct observation, chart review, and trigger tool in detecting drug-related problems (DRPs).

Main Methods:

• A systematic literature search was conducted for comparative studies published between January 2000 and October 2009.
• Studies comparing at least two of the four methodologies (incident report review, direct observation, chart review, trigger tool) were included.
• Included studies provided quantitative data on accuracy, efficiency (effort/cost), and efficacy in identifying DRPs.

Main Results:

• Twenty-eight studies were included in the review.
• Direct observation identified the most DRPs, while incident report review identified the fewest.
• Incident report review demonstrated higher specificity and best captured severe DRPs, though with lower sensitivity compared to trigger tools.
• Trigger tools were the least labor-intensive, and incident report review was potentially the least expensive when integrated with automated systems.

Conclusions:

• All four medication safety assessment techniques possess distinct advantages and disadvantages.
• There is minimal overlap in the DRPs identified by different methods, suggesting a potential benefit from using multiple approaches.
• Trigger tools appear most effective and labor-efficient, while incident report review excels at identifying high-severity DRPs.