AdONE Seminar - Monday, January 27, 2025: Evrim Didem Güneş (Koç University)

Chronic Care Management in Times of Capacity Shortages:  An Integrated Patient Assignment and Treatment Scheduling Problem for Post-Disaster Hemodialysis Planning

Individuals with chronic kidney diseases depend on hemodialysis, making them highly vulnerable during disasters due to reduced capacity caused by damaged facilities and infrastructure. In collaboration with the Renal Disaster Relief Task Force (RDRTF), we propose integer programming models to support disaster preparedness. This talk will focus on the first model, which optimizes patient assignments to hemodialysis centers and schedules treatments, incorporating alternative options with reduced duration and frequency. To solve this efficiently, we develop two decomposition-based methods: a Logic-Based Benders Decomposition algorithm and an Iterative Constructive Heuristic, both applicable within a rolling horizon framework for periodic updates as conditions evolve. Numerical results, based on earthquake scenarios in Istanbul, highlight the benefits of centralized planning and alternative treatments. We also present a prototype decision support system for renal disaster coordination, developed in collaboration with the RDRTF. Additionally, we will briefly discuss the second model: the Alliance Network Problem. This model establishes a centralized, alliance-based coordination mechanism for renal relief by proactively forming clinic alliances and assigning patient-backup clinics while accounting for post-disaster uncertainties. Our findings underscore the critical role of centralized coordination and proactive alliance formation in mitigating the impact of disasters on dialysis treatment.

 

Date: January 27, 2025

Time: 5 pm, s.t.

Place: Arcisstr. 21, room 0790, Hörsaal (0507.EG.790)