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Minimizing the Waiting Time for Emergency Surgery J.T. van Essena,

Summary: Minimizing the Waiting Time for Emergency Surgery
J.T. van Essena,
, E.W. Hansa
, J.L. Hurinka
, A. Oversbergb
aCenter for Healthcare Operations Improvement and Research (CHOIR), University of Twente, Enschede, The Netherlands
bUniversity of Cologne, Germany
Hospitals aim to deliver the highest quality of care. One key priority is to schedule emergency surgeries as quickly
as possible, because postponing them generally increases a patient's risk of complications and even death. In this
paper, we consider the case that emergency surgeries are scheduled in one of the elective Operating Rooms (ORs).
In this situation, emergency patients are operated once an ongoing elective surgery has finished. We denote these
completion times of the elective surgeries by `break-in-moments' (BIMs). The waiting time for emergency surgeries
can be reduced by spreading these BIMs as evenly as possible over the day. This can be achieved by sequencing the
surgeries in their assigned OR, such that the maximum interval between two consecutive BIMs is minimized. In this
paper, we discuss several exact and heuristic solution methods for this new type of scheduling problem. However, in
practice, emergency surgeries arising throughout the day and the uncertainty of the durations of elective surgeries,
may disrupt the initial schedule. As a result, the completion times of the elective surgeries, and therefore, the
BIMs change, leading also to a change of the maximum distance between two BIMs. To estimate this effect and
investigate the robustness of the created schedules, we conduct a simulation study. Computational results show


Source: Al Hanbali, Ahmad - Department of Applied Mathematics, Universiteit Twente


Collections: Engineering