ExtendSim in Healthcare
In the search for better methods to understand healthcare systems and develop solid, credible, evidence-based answers to complex questions, mathematical modeling has stepped up to the challenge.
Simulation gives healthcare professionals the freedom to make mistakes and to learn from them without the need for intervention by experts to stop patient harm. By seeing the outcome of their mistakes, learners gain powerful insight into the consequences of their actions and the need to “get it right”.
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How do we expedite vaccination distribution to protect society if there’s an influenza pandemic? In a February 2017 report published in the Disaster Medicine and Public Health Preparedness journal, ![]() ![]() |
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ExtendSim in Healthcare
Design and planning of emergency departments.
Test new procedures and dosage requirements for dangerous drugs and help manage chronic diseases.
Healthcare informatics and diagnostics.
Drug delivery.
Evaluate current and proposed processes to improve patient flow, reduce costs, and increase patient satisfaction.
Innovate new ways and means of comprehensive healthcare.
Pharma solutions.
Optimize flow patterns and capacity utilization when building new or extended facilities.
Recommend changes to corporate standards regarding staff levels and panel sizes.
Resource prioritization and allocation in the short and long term when faced with projected increases in clients and the need to expand without over-expanding.
Telephone answering for a large medical practice.
Dementia strategy.
Simulation of the function and operation of neural networks.
Acute and psychiatric hospital bed provision.
Clinical trial designs.
Who is Using ExtendSim
ExtendSim was used for a landmark healthcare study in which two major healthcare organizations used RFID to track nurses at 38 hospitals across the country. The goal of the study was to analyze and find ways to improve nurses' time with patients at the bedside on medical and surgical floors. The principal investigator planned to demonstrate, through simulation modeling of existing data if the nursing care process and/or the physical space could be improved.
Major medical equipment producer of laboratory automation equipment built ExtendSim models that allow its sales force to customize equipment for customers, increasing the rate of sales success. Then, the customer can use these same models to replicate their operations and explore opportunities to improve testing processes in lab analysis.
Students from the Tippie Analytics Cooperative worked with massive amounts of patient encounter data to reveal bottlenecks and opportunities as patients arrive and flow through the multiple engagements that constitute an appointment at the University of Iowa Hospitals and Clinics. These insights will help UIHC improve the patient experience by driving operational efficiencies, optimizing staffing, and streamlining patient visits.
Demand and capacity planning for an Intensive Care Unit examined patient flow pathways in a care unit (Definite MI, Suspected MI, LVF, and Arrhythmia) to investigate the impact of bed blockages in the medical ward on the ability of the unit to deliver its specialized care.
Modeling perioperative systems in a hospital - Utilizing data from a study containing a large dataset (90,000+ records of 30,000+ patients) culled from hospital patient logs and electronic data collection systems, ExtendSim was used to evaluate alternate process flows, policies, staffing, and resource allocation, for the cases flowing through a renovated space. This level of fidelity increased team buy-in and increased certainty that savings estimates would be real, providing an accurate understanding of resource allocation as it relates to revenue. The effort’s positive outcome showed the importance of involving nursing staff and facility administration with the healthcare planning, architecture, and simulation modeling team. The result is improved patient care and patient flow with better use of personnel and other resources.
ExtendSim was used to support the operational and functional design of a new national distribution center for the leading pharmaceuticals distributor in Argentina (more that 150 million units per year, at a value of $1 billion). This operation stands out for its level of innovation and aggressive use of simulation technology in support of order picking operations and routing of orders.
Feasibility model of North Hampshire Hospital's Emergency Assessment Centre in the United Kingdom evaluated staffing requirements, beds, number of cubicles, overall size of the facilities, and future growth. Surveyors and engineers used model results to plan the facility.
A high level model of mental health services, including 10 hospitals, is being developed.
Analysis of staffing levels at a refugee camp in Croatia.
Models of hospital and emergency medical services throughout a major USA county.
Selection of categorical surgical residents at a major teaching hospital.
Evaluation of biomedical research award applications in a major university in the health sciences.
Modeling of hearing instrument production.
Case Studies
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Overcoming Challenges in Hybrid Simulation Design and Experiment Jacek Zabawa and Bozena Mielczarek, Faculty of Computer Science and Management, Wroclaw University of Science and Technology ISAT 2018 -- 39th International Conference ![]() |
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Using Simulation and Optimization in Complex Manufacturing Operations Jim Curry, Founder, OpStat Group Inc. & Alvaro Brisolla, Production Planning and Logistics Senior Manager, Ethicon (a Johnson & Johnson subsidiary) APICS Annual Conference 2017 ![]() ![]() |
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Case - Miller Pain Treatment Center Chester Chambers, Johns Hopkins Carey Business School and Kayode Williams, Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine INFORMS Transactions on Higher Education, vol. 17, issue 3 June 2017 ![]()
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Using Simulation to Design an Emergency Department, Architecturally, Operationally, & Clinically Robin Clark, QMT Group; Susan O'Hara, O'Hara Healthcare Consultants; and Steve Langston, RLF Architects Healthcare Systems Process Improvement Conference 2015 ![]() To accomplish this task in an evidence-based way, a simulation model was developed using ExtendSim. This approach helped the clinical, managerial, and facility staff to not just understand their existing department workflow but also to provide them the opportunity to test trans-disciplinary scenarios to guide the design of the new emergency department. Furthermore it provided the client with the statistics to evaluate the impact a new Chest Pain & General Observation Center and Results Waiting Lounge would have on their entire system. ![]() |
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Improving health-care delivery for Post-Traumatic Stress Disorder an interrelated approach leveraging systems engineering and optimization Scott A. McKenzie, Naval Postgraduate School ![]() ![]() |
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Hospital Operations Planning, Simulation and Architecture By Frank D. Kittredge Jr., FACHE; Ashley N. Dias, LEEP AP, EDAC; and Martin J. Miller of Capability Modeling Architecture and operations are inherently linked. What happens inside a building is influenced by space, and space is influenced by what goes on inside of it. This is especially important in health care architecture and design. Health care programmers, planners and designers have always regarded operations planning in some capacity during the architectural process but how this is done has evolved. Here the authors discuss three project examples where both spreadsheet analysis and/or Six Sigma simulation were used during pre-design to plan and improve operations performance in health care settings.
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SoSE Modeling and Simulation Approaches to Evaluate Security and Performance Limitations of a Next Generation National Healthcare Information Network (NHIN-2) Elliot Sloane, Thomas Way, Vijay Gehlot, Anany Levitin, and Robert Beck, Villanova University Presented at the IEEE System of Systems Conference, San Antonio, Texas, April 16-18, 2007 Given the complexity of the emerging National Healthcare Information Network (NHIN) and Service Oriented Architectures (SOAs) due to multiple levels of system interactions, creating a valid and usable SoSE model for SOA application using a single technique that captures the desired level of details can be a daunting task. This paper details a hybrid approach to the modeling and simulation of a specific SOA that has been configured for potential defense applications, then adapted to healthcare. This system could also be used to allow connecting slow-speed remote telemedicine tools without violating the HIPAA Confidentiality, Security, and Availability requirements. ![]() |
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Planning Intensive Care Unit Design Using Computer Simulation Modeling - Optimizing Integration of Clinical, Operational, and Architectural Requirements Susan O’Hara, RN, MPH Critical Care Nursing Quarterly, March 2014 -- Volume 37 Number 1, Pages 67 - 82 ![]() A simulation model can guide the team through a more efficient planning process and will offer solutions that are not static. These dynamic solutions mirror the changing climate of health care, offering opportunities to predict the impact of future changes in clinical care, operations, and architecture in the ICU. ![]() |
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Simulation Modeling to Optimize Healthcare Delivery in an Outpatient Clinic Shaghayegh Norouzzadeh, Lawrence Carter, Nancy Riebling, Joseph Conigliaro, and Martin E. Doerfler North Shore-LIJ ![]() ![]() |
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Discrete Event Simulation of Emergency Department Activity: A Platform for System-level Operations Research Lloyd G. Connelly PhD and Aaron E. Bair MD Academic Emergency Medicine, November 2004 Explores the potential of discrete event simulation (DES) methods to advance system-level investigation of emergency department (ED) operations. To this end, the authors describe the development and operation of Emergency Department SIMulation (EDSIM), a new platform for computer simulation of ED activity at a Level 1 trauma center. The authors also demonstrate one potential application of EDSIM by using simulated ED activity to compare two patient triage methods. ![]() |
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Breast Screening: "A Blue Print for Success" The Leeds & Wakefield Breast Screening Service & Primary Care Trusts (part of National Health Service in the UK) saved buying at least 2 new breast cancer screening machines. ![]() |
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Discrete Event Modeling of CD4+ Memory T Cell Generation Martin S. Zand, Benjamin J. Briggs, Anirban Bose and Thuong Vo Journal of Immunology Using ExtendSim, researchers from the Nephrology Unit and Department of Surgery at the University of Rochester Medical Center in Rochester, New York were able to track individual lymphocytes in a model of CD4+ memory T cell generation. ![]() |
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The Use of Simulation Modeling in Healthcare Planning - Ambulatory Surgery Unit Susan O'Hara, O'Hara HealthCare Consultants; Mark Sullivan, Mark Sullivan Architects; and Henry Bell, Smoky Mountain Simulation Services 36th Conference on Winter Simulation Healthcare architecture design of a new ambulatory surgery unit explores the relationship between the number of operating rooms and recovery beds, the number of cases and the phases of recovery, bed capacity, staffing, and waiting room seat requirements as each affected the design. Model results allowed time for variations in the design to meet the client's needs before the project was built. Furthermore, the simulation shows the positive outcome of combining the experience of three professional disciplines: healthcare planning, architecture, and simulation modeling for nurses, doctors and patients of the new ambulatory surgery unit. ![]() |
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Using Simulation to Improve the Patient Pre-Admission Testing Design Process Susan O'Hara, O'Hara HealthCare Consultants; Dave Krahl, Imagine That, Inc.; Mark Sullivan, Mark Sullivan Architects; and Henry Bell, Smoky Mountain Simulation Services Winter Simulation Conference 2004 Simulation modeling is a tool of hospital-wide system process change with a focus on improving patient satisfaction through a better clinical process. Some of the improvements, based on existing systems, include decreased delays, better healthcare staff utilization and tailored scheduling. In this part 2 of 2 perioperative case studies (part 1: Ambulatory Surgery Unit), the experiences of three distinct, yet complimentary professions are combined and opitimized: nursing/healthcare planning, architecture, and simulation engineering to create a better way to provide a clinical service in a newly designed healthcare space. ![]() |
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New Equipping Strategies for Combat Support Hospitals Matthew W. Lewis, Aimee Bower, Mishaw T. Cuyler, Rick Eden, Ronald E. Harper, Kristy Gonzalez Morganti, Adam C. Resnick, Elizabeth D. Steiner, Rupa S. Valdez Prepared for the United States Army by RAND Corporation ![]() RAND Corporation took on a project for the Army to develop and evaluate alternative strategies for equipping the CSHs to meet their equipment and maintenance needs.Using ExtendSim to evaluate the performance of alternative equipping strategies for CSHs, the study identified a new equipment and maintenance strategy that has the potential to enable the Army to reduce the cost of equipment and maintain its CSHs at fully modernized levels, providing them with equipment that is newer and in better condition on average than what they had prior to the study. ![]() |
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Simulating Six Sigma Improvement Ideas for a Hospital Emergency Department Martin J. Miller and David M. Ferrin, Business Prototyping Inc. and Jill M. Szymanski, Baptist Health South Florida ![]() ![]() |
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Improving Access to Psychological Therapies (IAPT) Consultants used ExtendSim to find new ways of designing processes that achieve better patient flow, deliver greater care, are supported by staff, and provide better value-for-money for the delivery of mental health services in South Tyneside. The resulting PatientFlow plans and the simulation are being used very succesfully to build and deploy their ‘dream team’ of therapists in a way that can meet the 50% increase in referrals within approved headcount and budget. ![]() |
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A Simulation Model for Emergency Centres Erhan Kozan and Nick Mesken, School of Mathematical Sciences, Queensland University of Technology International Congress on Modelling and Simulation ![]() The ExtendSim model built for this project could be used to: • analyze the effects of incoming calls on a system • optimize personnel resources at call centers • investigate the impact of workload distribution, shift schedule adjustments, and staffing profiles on response times • estimate the impact on the resources required in relation to a reduction or increase in the number of communication centers • improve the efficiency and location of dispatch services • improve the ambulance allocation algorithm ![]() |
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Reengineering Healthcare - Faculty, students apply industrial methods to medical clinic Suresh Chand and Herb Moskowitz Purdue University Krannert School of Management What began as an MBA class project at Purdue University’s Krannert School of Management is now applying factory management techniques to a medical clinic, ultimately improving productivity and quality. With their help, the clinic was able to serve 37 percent more patients on a given day. ![]() |
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Books
Operations Management in Healthcare: Strategy and Practice
Corinne M. Karuppan PhD, CPIM; Michael R. Waldrum MD, MSc, MBA; and Nancy E. Dunlap MD, Ph.D., MBA
With a hands-on approach, the book clearly demonstrates the “how-tos” of effectively managing a healthcare organization. It describes how to negotiate the different perspectives of clinicians and administrators by offering a common platform for building competitive advantage. To bring the cultural context of a healthcare organization to life, the book engages students with a series of short vignettes of a fictitious healthcare organization as it strives to achieve the status of a highly reliable organization. Integrated throughout are a variety of tools and quantitative techniques with step-by-step instructions to assist in problem solving and process improvements. Also included are mind maps linking competitive priorities and concepts, quick-reference icons, dashboards displaying measurement and process tracking, and boxed features. Several project ideas, team assignments, and creative thinking exercises are proposed. A comprehensive Instructor Packet and online tutorials further enhance the book.
Springer Publishing Company, First Edition - June 14, 2016
Paperback & Digital with discount download link for ExtendSim Student: 640 pages
IBBN-10: 0826126529
ISBN-13: 978-0826126529
Optimizing Emergency Department Throughput: Operations Management Solutions for Health Care Decision Makers
John M. Shiver & David Eitel
This book focuses on providing health care leaders with the tools they can employ to optimize the performance of emergency departments (EDs) and thereby improve service to patients, employees, and communities. Written by 20 of the most progressive and successful health care reformers in the country, the approaches described can be utilized to quantify improvements, enhance predictability of workflow, and improve staff scheduling. The data derived using these techniques can serve as powerful evidence in support of change.
Productivity Press, First Edition - December 28, 2009
Paperback: 260 pages
IBBN-10: 1420083775
ISBN-13: 978-1439885253
Videos
HealthCare Modeling
Presented by Susan O'Hara, RN, MPH President O'Hara HealthCare Consultants and Robin Clark of the QMT Group
Susan O'Hara of O'Hara HealthCare Consultants and Robin Clark of the QMT Group present a case study of a surgical department demonstrating the importance of making accurate predictions in the healthcare field.
The Use of Discrete-Event Simulation in Healthcare Operations Research
Presented by Eric Goldlust, MD, PhD
This hour-long video is part of a webinar series hosted by Healthcare Systems Modeling & Simulation Affinity Group of Society of Simulation in Healthcare that was streamed live on June 23, 2014. Though it does not specifically discuss ExtendSim use the healthcare field, it is a very useful discussion about the benefits attained through using simulation to help address the complexities and variability in patient flow and clinical practice.
https://www.youtube.com/watch?v=2oZa950qgoU
The Benefits of Using Modeling and Simulation in Drug Development
Very brief (3 minute) video published July 27, 2014 by Roche pRED Clinical Pharmacology to introduce how they use modeling and simulation to help theire clinical teams define the best design for new studies. The video explains how modeling and simulation is conducted at Roche and is used to take more informative decisions. This video does not talk about ExtendSim, but it's a very useful video.
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