Abstract
Patients undergoing radiation therapy may terminate treatment for any number of reasons. The incidence of treatment termination (TT) during radiation therapy has not been studied. Herein we present a cohort of TT at a large multi-center radiation oncology department over 10 years. TTs between 1/2013 and 1/2023 were prospectively analyzed as part of an ongoing departmental quality and safety program. TT was defined as any premature discontinuation of therapy after initiating radiation planning. The rate of TT was calculated as a percentage of all patients starting radiation planning. All cases were presented at monthly morbidity and mortality (MM) conferences with a root cause reviewed (RCA). A total of 1,448 TTs were identified out of 31,199 planned courses of care (4.6%). Six hundred eighty-six (47.4%) involved patients treated with curative intent, while 753 (52.0%) with palliative intent, and 9 (0.6%) for benign disease. The rate of TT decreased from 8.49% in 2013 to 3.02% in 2022 with rates decreasing yearly. The most common disease sites for TT were CNS (21.7%), H&N (19.3%), Thorax (17.5%), and Bone (14.2%). The most common causes of TT were hospice and/or patient expiration (35.9%), patient choice unrelated to toxicity (35.2%), and clinician choice unrelated to toxicity (11.5%). This 10-year prospective review of TTs identified a year-over-year decrease in TTs as a percentage of planned patients. This decrease may be associated with the addition of RCA for TTs and discussion monthly at MM rounds, coupled with departmental upstream quality initiatives implemented over time. Understanding the reasons behind TTs may help to decrease preventable TTs. While some TTs may be unavoidable, open discourse and quality improvement changes effectively reduce TT incidents over time.
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