Abstract
ObjectiveTo compare costs between enucleation and plaque brachytherapy procedures for the treatment of intraocular malignancies. DesignRetrospective economic analysis using a time-driven activity-based costing (TDABC) methodology. SubjectsPatients undergoing plaque brachytherapy and enucleation procedures for the treatment of intraocular malignancy performed at the University of Michigan Kellogg Eye Center from 2021-2022. MethodsData inputs were obtained from the Electronic Health Record (EHR) and prior literature. Associated expenses were determined using TDABC, a method for cost calculation that correlates the cost rate of each resource used in a procedure with the amount of time that the resource is used. Main Outcome MeasuresThe primary outcome was the difference in total cost associated with enucleation versus plaque brachytherapy procedures. Secondary outcomes included length of surgery (in minutes), total day-of-surgery costs, and number of follow-up visits. Results145 cases were included, with 41 enucleations and 104 courses of plaque brachytherapy.. Between all enucleation and plaque brachytherapy procedures, plaque brachytherapy was significantly more costly ($10,140.95 vs. $6,127.70, P < 0.01), with total difference in cost of $4013 (95% confidence interval $3352.02 to $4674.47). There was no significant difference in OR time between enucleation and plaque brachytherapy. Plaque brachytherapy required significantly more follow-up visits than enucleation (1.02 visits vs. 0.59 visits, P < 0.01). ConclusionsThrough TDABC cost analysis, we determined that the surgical course of plaque brachytherapy is more costly than enucleation, with the primary cost drivers being cost of the radiotherapy plaque and radiation oncology-related expenses.
Published Version
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