An internal quality improvement collaborative significantly reduces hospital-wide medication error related adverse drug events

Objective: To reduce the rate of harmful adverse drug events (ADEs) of severity level D-I from a baseline peak of 0.24 ADE/1000 doses to 0.08 ADE/1000 doses.

Study design: A hospital-wide, quasi-experimental time series quality improvement (QI) initiative to reduce ADEs was implemented. High-reliability concepts, microsystem-based multidisciplinary teams, and QI science methods were used. ADEs were detected through a combination of voluntary reporting, trigger tool analysis, reversal agent review, and pharmacy interventions. A multidisciplinary ADE Quality Collaborative focused on medication use processes, not on specific classes of medications. Effective interventions included huddles and an ADE prevention bundle.

Results: The rate of harmful ADEs initially increased by >65% because of increased error reporting, temporally associated with the implementation of a program focused on high reliability and an improved safety culture. The quarterly rate was 0.17 ADE/1000 dispensed doses in Q1 2010. By the end of Q2 2013, the rate had decreased by 76.5%, to 0.04 ADE/1000 dispensed doses (P < .001).

Conclusion: Using an internal collaborative model and QI methodologies focused on medication use processes, harmful ADEs were reduced hospital-wide by 76.5%. The concurrent implementation of a high-reliability, safety-focused program was important as well.