Locating trauma centers considering patient safety

Sagarkumar Hirpara (), Monit Vaishnav (), Pratik J. Parikh (), Nan Kong () and Priti Parikh ()
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Sagarkumar Hirpara: University of Louisville
Monit Vaishnav: Wright State University
Pratik J. Parikh: University of Louisville
Nan Kong: Purdue University
Priti Parikh: Wright State University

Health Care Management Science, 2022, vol. 25, issue 2, No 8, 310 pages

Abstract: Abstract Trauma continues to be the leading cause of death and disability in the U.S. for those under the age of 44, making it a prominent public health problem. Recent literature suggests that geographical maldistribution of Trauma Centers (TCs), and the resultant increase of the access time to the nearest TC, could impact patient safety and increase disability or mortality. To address this issue, we introduce the Trauma Center Location Problem (TCLP) that determines the optimal number and location of TCs in order to improve patient safety. We model patient safety through a surrogate measure of mistriages, which refers to a mismatch in the injury severity of a trauma patient and the destination hospital. Our proposed bi-objective optimization model directly accounts for the two types of mistriages, system-related under-triage (srUT) and over-triage (srOT), both of which are estimated using a notional tasking algorithm. We propose a heuristic based on the Particle Swarm Optimization framework to efficiently derive a near-optimal solution to the TCLP for realistic problem sizes. Based on 2012 data from the state of Ohio, we observe that the solutions are sensitive to the choice of weights for srUT and srOT, volume requirements at a TC, and the two thresholds used to mimic EMS decisions. Using our approach to optimize that network resulted in over 31.5% reduction in the objective with only 1 additional TC; redistribution of the existing 21 TCs led to 30.4% reduction.

Keywords: Operations research in health services; Trauma center location; Patient safety; Bi-objective optimization (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s10729-021-09576-y

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