Informs Annual Meeting Phoenix 2018

INFORMS Phoenix – 2018

TB58

n TB57 West Bldg 101B Health Applications Sponsored: Health Applications Sponsored Session Chair: Osman Ozaltin, North Carolina State University, Raleigh, NC, 27605, United States 1 - Operating Room Capacity Allocation Among Indoctors and Outdoctors Under Uncertainty Tonguc Yavuz, Ozyegin Universitesi, Istanbul, Turkey, Serhat Gul, Erhun Kundakcioglu The hospitals that have high-tech equipments or specialize in specific areas improve their revenues by allowing the doctors that are not employed by the hospital to use their own operating rooms. We study the problem of OR capacity allocation among indoctors and outdoctors over a planning period. The problem is formulated as a two-stage stochastic mixed integer program. We exploit the structural properties of our model to improve the computational performance of the standard stochastic programming techniques. We conduct numerical experiments based on data from a major hospital. 2 - Data Analytics on the Operations of a Radiology Workflow Platform: Statistical Evidence of Cherry-picking and its Impact on Service Level Most hospitals follow an unstructured process for assigning cases to radiologists, providing ample freedom to select the next case to work on. We analyze a large and unique dataset from the operations of a radiology workflow platform. In particular, we explore whether the point system that Medicare uses to measure complexity -and ultimately for compensating hospitals and radiologist- is aligned with the amount of work required to process each case. We find that there exist some misalignment, which opens the door for radiologists to process cases that give a higher bang-per-buck first. We provide the first statistical evidence of cherry-picking in the processing of radiological cases. 3 - Improving Patient Safety in the External Beam Radiation Therapy Osman Ozaltin, North Carolina State University, Raleigh, NC, United States The risk for errors is high in radiation therapy as the planning and deliveryprocesses involve numerous hand-offs, each personinterpreting and entering information viamultiple complex electronic systems. The use of safety barriers(SB) is a widely recognizedmethod for detectingerrors before they harm patients. Each SB checks one or more treatment elements related to the outcomes of previous steps to ensure that they are accurate and meet safety standards.We develop an optimization framework to determine the reliable designof SBs to improve patient safety. 4 - Emergency Department Pharmacy Staffing using Priority-based Workload Phichet Wutthisirisart, Senior Health Services Analyst, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, United States, Maria Rudis, Kalyan Pasupathy, Mustafa Y. Sir Pharmacists normally prepare prescription medication on demand and provide consultation on medication usage. Pharmacists based in Emergency Departments (EDs), unlike outpatient pharmacists, work closely with physicians to decide treatment plans for patients and assist physicians in resuscitation events. This work presents a novel approach implemented in Mayo Clinic’s ED in Rochester to determine block schedules for staffing the ED pharmacy, based on patient volume with respect to task priority levels and estimated task response times. The comparison of pharmacy coverage before and after implementation showed that the ED achieved around 30 percent improvement. Gonzalo Romero, Rotman, University of Toronto, 91 Ferrier Avenue, Toronto, ON, M4K 3H6, Canada, Timothy Chan, Nicholas Howard, Saman Lagzi

n TB58 West Bldg 101C Engineering Human Performance Sponsored: Health Applications Sponsored Session Chair: Sheldon Herring, Greenville Health System, 701 Grove Rd, Greenville, SC, 29605, United States Co-Chair: Dotan I. Shvorin, PhD, Clemson University, Freeman Hall, Clemson, SC, 29634, United States 1 - Advancements in Athletic Performance Using Bio-Sensors and Simulation Modeling Dotan I. Shvorin, Clemson University, Clemson, SC, United States A proof of concept research was constructed to test if the integration of bio- sensing technology with advance analytical tools could provide advantageous insights to human performance. The study integrated a step-wise design with an action research approach. Each phase of the study, which included tennis drill design, simulation modeling, capturing the player baseline and game performance, model calibration, and optimization modeling, was tested, revised, and validated. By evaluating decision making outcomes, the proposed model presented a predicted player performance improvement capability of 18%, 11%, and 4% at the amateur, intermediate and advance skill level of play. 2 - Effect of the Designed Environment on Individuals with Behavioral Disorders Meirav Goldhour, Professor, Converse College, Spartanburg, SC, 29681, United States Elements within our built environment such as color, light, view, materials, and space planning, can have an impact on mental and physical wellbeing. By way of example, research supports that certain colors can increase or decrease blood pressure, light can have an impact on concentrations, and space organization can improve human performance. Some design features can trigger negative memories, create discomfort, and be translated adversely by individuals with elevated sensitivities, such as Trauma and PTSD sufferers. With this knowledge in progress, design guidelines taken from related multidisciplinary fields have been formed towards promoting mental healing and performance. 3 - Understanding Interruptions, Multitasking, and Workflow in the Emergency Department Allan Fong, Medstar Health, 3007 Tilden Street, NW, Suite 7L, Washington, DC, 20008, United States Understanding clinician workflow in healthcare settings is important to the safety and timely delivery of care. The emergency department specifically is one of the most interruption laden and chaotic environments where physicians have little to no control of the volume and acuity of their patients. Interruptions in healthcare environments are particularly risky given the potential for medical error and patient harm. We discuss a time-motion study observing 24 emergency physicians highlighting results and factors surrounding multitasking and interruptions. 4 - Experience and Fatigue in Emergency Medicine Physician Decision Making Kevin M. Taaffe, Clemson University, Department of Industrial Engineering, 269 Freeman Hall, Clemson, SC, 29634, United States, Dotan Shvorin Emergency medicine physicians work in highly uncertain and intense care settings. After collecting data from a wearable bio-marker device, initial findings indicate that physician experience plays a role in developing internal control mechanisms to cope with various treatment conditions in the emergency room. Our research aims to detect not only the physiological differences between attending physicians and resident physicians, but also to detect when these physicians should change their workflow decisions to achieve better outcomes. Our findings will demonstrate how experience and physiological awareness of the physician can affect performance and result in better decision making. 5 - Thinking with Your Brain in Mind: Learning More About the Learning Machine Sheldon Herring, Greenville Health System, 701 Grove Rd, Greenville, SC, 29605, United States The brain is the most complex system in existence and exists in a state of “dynamicstabilityö. The brain continues to grow in complexity and mature, and is usually able toincorporate new information without destabilizing and losing its core identity. One of themost unique aspects of the brain is its self-awareness. Damage can result in changes instability and result in “systems errors that are counter-intuitive and range from changesin self-awareness to deficits in information processing. This session will provide anoverview of the brain as a complex, dynamic and self-aware system and examples of howinjury can result in impaired information processing and overview of neurorehabilitation.

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