RESUMO
PURPOSE: A cost-reduction strategy for isoproterenol use in radiofrequency catheter ablation procedures was evaluated. SUMMARY: A medication-use evaluation at a 454-bed tertiary medical center revealed that the cardiac catheterization laboratory was the highest user of isoproterenol. Isoproterenol was removed from all AcuDose-Rx machines Omnicell, Mountain View, CA, and compounding was performed by pharmacy personnel. It was initially provided to the cardiac catheterization laboratory as an 8-µg/mL concentration in 20-mL 0.9% sodium chloride injection syringes with a 24-hour beyond-use date. This resulted in an initial cost savings but with an unacceptably high rate of wastage. Isoproterenol was then compounded as a 4-µg/mL concentration in 30 mL 5% dextrose in water syringes with a 9-day beyond-use date after a thorough literature search supported longer stability with this admixture. After 12 months of our current process, isoproterenol use during radio frequency catheter ablations (RFCAs) in the cardiac catheterization laboratory was reduced by 85%, decreasing the number of ampules used from 11.15 to 1.66 per week. CONCLUSION: A pharmacy-initiated process to mitigate an extraordinary increase in isoproterenol acquisition cost resulted in a reduction in usage in a tertiary care community hospital. Isoproterenol usage was reduced 85% after two different interventions were implemented, which is estimated to save $1,839 per procedure.