Maintaining fairness in stochastic chemotherapy scheduling

Batuhan Çelik, Serhat Gul and Özlem Karsu

Omega, 2025, vol. 137, issue C

Abstract: Chemotherapy scheduling is hard to manage under uncertainty in infusion durations, and focusing on expected performance measure values may lead to unfavorable outcomes for some patients. In this study, we aim to design daily patient appointment schedules considering a fair environment regarding patient waiting times. We propose using a metric that encourages fairness and efficiency in waiting time allocations. To optimize this metric, we formulate a two-stage stochastic mixed-integer nonlinear programming model. We employ a binary search algorithm to identify the optimal schedule, and then propose a modified binary search algorithm (MBSA) to enhance computational capability. Moreover, to address stochastic feasibility problems at each MBSA iteration, we introduce a novel reduce-and-augment algorithm that utilizes scenario set reduction and augmentation methods. We use real data from a major oncology hospital to show the efficacy of MBSA. We compare the schedules identified by MBSA with both the baseline schedules from the oncology hospital and those generated by commonly employed scheduling heuristics. Finally, we highlight the significance of considering uncertainty in infusion durations to maintain fairness while creating appointment schedules.

Keywords: Healthcare operations; Chemotherapy; Scheduling; Fairness; Stochastic programming (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1016/j.omega.2025.103338

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