Purpose
A quality improvement project was implemented to improve adherence to evidence-based antiemetic guidelines for malignant glioma patients treated with moderately-emetic chemotherapy (MEC). Poorly controlled chemotherapy-induced nausea and vomiting (CINV) reduce cancer treatment efficacy and significantly impair cancer patients’ quality of life (QOL). Review of Duke University Preston Robert Tisch Brain Tumor Center (PRTBTC)’s usual practice demonstrates a high incidence (45%) of CINV, despite premedication with short-acting 5-HT3-serotonin receptor antagonists (5-HT3-RAs). National Comprehensive Cancer Network (NCCN)’s evidence-based guidelines recommend the combination of the long-acting 5-HT3-RA palonosetron (PAL) and dexamethasone (DEX) for the prevention of acute and delayed CINV with MEC. Low adherence (58%) to antiemetic guidelines may have explained our high CINV incidence.
Methods
One-sample, quasi-experimental design evaluated a combination intervention that included a provider education session; implementation of risk-assessment tool with computerized, standardized antiemetic guideline order-sets; and a monthly audit-feedback strategy. Post-implementation adherence to evidence-based antiemetic order-sets and patient outcomes were measured and compared to baseline and historical data. Primary outcome was the guideline order-set adherence rate. Secondary outcomes included nausea/vomiting rates and QOL.
Results
Adherence to ordering MEC guideline antiemetics increased significantly, from 58% to a sustained 90%, with associated improvement in nausea/vomiting. In acute and delayed phases, 75% and 84% of patients, respectively, did not experience CINV. There was no significant change in QOL.
Conclusion
Combination intervention and audit-feedback strategy to translate evidence into oncology practice improved and sustained adherence to antiemetic guidelines. Adherence corresponded with effective nausea/vomiting control and preserved QOL in patients with malignant gliomas.