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Health Care Management Science

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https://www.readbyqxmd.com/read/28735459/diabetes-and-the-hospitalized-patient-a-cluster-analytic-framework-for-characterizing-the-role-of-sex-race-and-comorbidity-from-2006-to-2011
#1
Nisha Nataraj, Julie Simmons Ivy, Fay Cobb Payton, Joseph Norman
In the US, one in four adults has two or more chronic conditions; this population accounts for two thirds of healthcare spending. Comorbidity, the presence of multiple simultaneous health conditions in an individual, is increasing in prevalence and has been shown to impact patient outcomes negatively. Comorbidities associated with diabetes are correlated with increased incidence of preventable hospitalizations, longer lengths of stay (LOS), and higher costs. This study focuses on sex and race disparities in outcomes for hospitalized adult patients with and without diabetes...
July 22, 2017: Health Care Management Science
https://www.readbyqxmd.com/read/28721549/an-expected-coverage-model-with-a-cutoff-priority-queue
#2
Soovin Yoon, Laura A Albert
Emergency medical services provide immediate care to patients with various types of needs. When the system is congested, the response to urgent emergency calls can be delayed. To address this issue, we propose a spatial Hypercube approximation model with a cutoff priority queue that estimates performance measures for a system where some servers are reserved exclusively for high priority calls when the system is congested. In the cutoff priority queue, low priority calls are not immediately served-they are either lost or entered into a queue-whenever the number of busy ambulances is equal to or greater than the cutoff...
July 19, 2017: Health Care Management Science
https://www.readbyqxmd.com/read/28718169/predicting-elderly-patient-length-of-stay-in-hospital-and-community-care-using-a-series-of-conditional-coxian-phase-type-distributions-further-conditioned-on-a-survival-tree
#3
Andrew S Gordon, Adele H Marshall, Mariangela Zenga
Increasing demand on hospital resources by an ageing population is impacting significantly on the number of beds available and, in turn, the length of time that elderly patients must wait for a bed before being admitted to hospital. This research presents a new methodology that models patient pathways and allows the accurate prediction of patient length of stay in hospital, using a phase-type survival tree to cluster patients based on their covariates and length of stay in hospital. A type of Markov model, called the conditional Coxian phase-type distribution is then implemented, with the probability density function for the time spent at a particular stage of care, for example, the first community discharge, conditioned on the length of stay experienced at the previous stage, namely the initial hospital admission...
July 17, 2017: Health Care Management Science
https://www.readbyqxmd.com/read/28577263/modelling-for-the-proposed-roll-out-of-the-111-service-in-wales-a-case-study
#4
Mark Tuson, Tracey England, Doris Behrens, Richard Bowen, Dorothy Edwards, John Frankish, Jude Kay
NHS Direct Wales provides a single point of access where members of the public can telephone and seek medical support and/or advice. The service is provided for all the Health Boards in Wales by a single virtual call centre run from a main location in Swansea with 2 satellite locations. Patients in Wales can also access a local General Practitioner service during the evenings and at weekends, by phoning their Out of Hours service. The introduction of a '111' service is intended to combine these two operations on a pan-Wales basis using the existing NHS Direct Wales call centre and staff, with the existing Health Board Out of Hours 'hubs'...
June 2, 2017: Health Care Management Science
https://www.readbyqxmd.com/read/28551859/cognitive-workload-reduction-in-hospital-information-systems-decision-support-for-order-set-optimization
#5
Daniel Gartner, Yiye Zhang, Rema Padman
Order sets are a critical component in hospital information systems that are expected to substantially reduce physicians' physical and cognitive workload and improve patient safety. Order sets represent time interval-clustered order items, such as medications prescribed at hospital admission, that are administered to patients during their hospital stay. In this paper, we develop a mathematical programming model and an exact and a heuristic solution procedure with the objective of minimizing physicians' cognitive workload associated with prescribing order sets...
May 27, 2017: Health Care Management Science
https://www.readbyqxmd.com/read/28523477/the-impact-of-e-visits-on-patient-access-to-primary-care
#6
Xiang Zhong, Peter Hoonakker, Philip A Bain, Albert J Musa, Jingshan Li
To improve patient access to primary care, many healthcare organizations have introduced electronic visits (e-visits) to provide patient-physician communication through secure messages. However, it remains unclear how e-visit affects physicians' operations on a daily basis and whether it would increase physicians' panel size. In this study, we consider a primary care physician who has a steady patient panel and manages patients' office and e-visits, as well as other indirect care tasks. We use queueing-based performance outcomes to evaluate the performance of care delivery...
May 18, 2017: Health Care Management Science
https://www.readbyqxmd.com/read/28516345/performance-and-cost-evaluation-of-health-information-systems-using-micro-costing-and-discrete-event-simulation
#7
Olfa Rejeb, Claire Pilet, Sabri Hamana, Xiaolan Xie, Thierry Durand, Saber Aloui, Anne Doly, Pierre Biron, Lionel Perrier, Vincent Augusto
Innovation and health-care funding reforms have contributed to the deployment of Information and Communication Technology (ICT) to improve patient care. Many health-care organizations considered the application of ICT as a crucial key to enhance health-care management. The purpose of this paper is to provide a methodology to assess the organizational impact of high-level Health Information System (HIS) on patient pathway. We propose an integrated performance evaluation of HIS approach through the combination of formal modeling using the Architecture of Integrated Information Systems (ARIS) models, a micro-costing approach for cost evaluation, and a Discrete-Event Simulation (DES) approach...
May 17, 2017: Health Care Management Science
https://www.readbyqxmd.com/read/28508958/modeling-the-critical-care-pathway-for-cardiothoracic-surgery
#8
Nicolas Bahou, Claire Fenwick, Gillian Anderson, Robert van der Meer, Tony Vassalos
The west of Scotland heart and lung center based at the Golden Jubilee National Hospital houses all adult cardiothoracic surgery for the region. Increased demand for scheduled patients and fluctuations in emergency referrals resulted in increasing waiting times and patient cancellations. The main issue was limited resources, which was aggravated by the stochastic nature of the length of stay (LOS) and arrival of patients. Discrete event simulation (DES) was used to assess if an enhanced schedule was sufficient, or more radical changes, such as capacity or other resource reallocations should be considered in order to solve the problem...
May 16, 2017: Health Care Management Science
https://www.readbyqxmd.com/read/28500408/scheduling-internal-medicine-resident-rotations-to-ensure-fairness-and-facilitate-continuity-of-care
#9
Ruben A Proano, Akshit Agarwal
Completing a residency program is a requirement for medical students before they can practice medicine independently. Residency programs in internal medicine must undergo a series of supervised rotations in elective, inpatient, and ambulatory units. Typically, a team of chief residents is charged to develop a yearly rotational schedule. This process is complex, as it needs to consider academic, managerial, regulatory, and legal restrictions while also facilitating the provision of patient care, ensuring a diverse educational experience, balancing the workload, and improving resident satisfaction...
May 12, 2017: Health Care Management Science
https://www.readbyqxmd.com/read/28488196/a-multi-state-approach-to-patients-affected-by-chronic-heart-failure-the-value-added-by-administrative-data
#10
Francesco Grossetti, Francesca Ieva, Anna Maria Paganoni
Healthcare administrative databases are becoming more and more important and reliable sources of clinical and epidemiological information. They are able to track several interactions between a patient and the public healthcare system. In the present study, we make use of data extracted from the administrative data warehouse of Regione Lombardia, a region located in the northern part of Italy whose capital is Milan. Data are within a project aiming at providing a description of the epidemiology of Heart Failure (HF) patients at regional level, to profile health service utilization over time, and to investigate variations in patient care according to geographic area, socio-demographic characteristic and other clinical variables...
May 9, 2017: Health Care Management Science
https://www.readbyqxmd.com/read/26810359/strategic-level-proton-therapy-patient-admission-planning-a-markov-decision-process-modeling-approach
#11
Ridvan Gedik, Shengfan Zhang, Chase Rainwater
A relatively new consideration in proton therapy planning is the requirement that the mix of patients treated from different categories satisfy desired mix percentages. Deviations from these percentages and their impacts on operational capabilities are of particular interest to healthcare planners. In this study, we investigate intelligent ways of admitting patients to a proton therapy facility that maximize the total expected number of treatment sessions (fractions) delivered to patients in a planning period with stochastic patient arrivals and penalize the deviation from the patient mix restrictions...
June 2017: Health Care Management Science
https://www.readbyqxmd.com/read/26742504/stochastic-multi-objective-auto-optimization-for-resource-allocation-decision-making-in-fixed-input-health-systems
#12
Nathaniel D Bastian, Tahir Ekin, Hyojung Kang, Paul M Griffin, Lawrence V Fulton, Benjamin C Grannan
The management of hospitals within fixed-input health systems such as the U.S. Military Health System (MHS) can be challenging due to the large number of hospitals, as well as the uncertainty in input resources and achievable outputs. This paper introduces a stochastic multi-objective auto-optimization model (SMAOM) for resource allocation decision-making in fixed-input health systems. The model can automatically identify where to re-allocate system input resources at the hospital level in order to optimize overall system performance, while considering uncertainty in the model parameters...
June 2017: Health Care Management Science
https://www.readbyqxmd.com/read/26729325/assessing-overall-technical-and-scale-efficiency-among-home-health-care-agencies
#13
Vivian G Valdmanis, Michael D Rosko, Hervé Leleu, Dana B Mukamel
While home health care agencies (HHAs) play a vital role in the production of health, little research has been performed gauging their efficiency. Employing a robust approach to data envelopment analysis (DEA) we assessed overall, technical, and scale efficiency on a nationwide sample of HHAs. After deriving the three efficiency measures, we regressed these scores on a variety of environmental factors. We found that HHAs, on average, could proportionally reduce inputs by 28 % (overall efficiency), 23 % (technical efficiency) and 6 % (scale efficiency)...
June 2017: Health Care Management Science
https://www.readbyqxmd.com/read/26729324/optimizing-nurse-capacity-in-a-teaching-hospital-neonatal-intensive-care-unit
#14
Ali Kokangul, Serap Akcan, Mufide Narli
Patients in intensive care units need special attention. Therefore, nurses are one of the most important resources in a neonatal intensive care unit. These nurses are required to have highly specialized training. The random number of patient arrivals, rejections, or transfers due to lack of capacity (such as nurse, equipment, bed etc.) and the random length of stays, make advanced knowledge of the optimal nurse a requirement, for levels of the unit behave as a stochastic process. This stochastic nature creates difficulties in finding optimal nurse staffing levels...
June 2017: Health Care Management Science
https://www.readbyqxmd.com/read/26677847/cost-inefficiency-under-financial-strain-a-stochastic-frontier-analysis-of-hospitals-in-washington-state-through-the-great-recession
#15
Germán M Izón, Chelsea A Pardini
The importance of increasing cost efficiency for community hospitals in the United States has been underscored by the Great Recession and the ever-changing health care reimbursement environment. Previous studies have shown mixed evidence with regards to the relationship between linking hospitals' reimbursement to quality of care and cost efficiency. Moreover, current evidence suggests that not only inherently financially disadvantaged hospitals (e.g., safety-net providers), but also more financially stable providers, experienced declines to their financial viability throughout the recession...
June 2017: Health Care Management Science
https://www.readbyqxmd.com/read/26637297/complementary-effect-of-patient-volume-and-quality-of-care-on-hospital-cost-efficiency
#16
Jeong Hoon Choi, Imsu Park, Ilyoung Jung, Asoke Dey
This study explores the direct effect of an increase in patient volume in a hospital and the complementary effect of quality of care on the cost efficiency of U.S. hospitals in terms of patient volume. The simultaneous equation model with three-stage least squares is used to measure the direct effect of patient volume and the complementary effect of quality of care and volume. Cost efficiency is measured with a data envelopment analysis method. Patient volume has a U-shaped relationship with hospital cost efficiency and an inverted U-shaped relationship with quality of care...
June 2017: Health Care Management Science
https://www.readbyqxmd.com/read/26490831/a-stochastic-model-of-acute-care-decisions-based-on-patient-and-provider-heterogeneity
#17
Muge Capan, Julie S Ivy, James R Wilson, Jeanne M Huddleston
The primary cause of preventable death in many hospitals is the failure to recognize and/or rescue patients from acute physiologic deterioration (APD). APD affects all hospitalized patients, potentially causing cardiac arrest and death. Identifying APD is difficult, and response timing is critical - delays in response represent a significant and modifiable patient safety issue. Hospitals have instituted rapid response systems or teams (RRT) to provide timely critical care for APD, with thresholds that trigger the involvement of critical care expertise...
June 2017: Health Care Management Science
https://www.readbyqxmd.com/read/26452716/output-congestion-leads-to-compromised-care-in-peruvian-public-hospital-neonatal-units
#18
Alejandro Arrieta, Jorge Guillén
Peru is moving toward a universal health insurance system, and it is facing important challenges in the provision of public health services. As more citizens gain access to health insurance, the flow of patients exceeds the capacity of public hospitals to provide care with quality. In this study we explore the relationship between technical efficiency and patient safety events in neonatal care units of Peru's public hospitals. We use Data Envelope Analysis (DEA) with output congestion to assess the association between technical efficiency and patient safety events...
June 2017: Health Care Management Science
https://www.readbyqxmd.com/read/26433371/a-dynamic-ambulance-management-model-for-rural-areas-computing-redeployment-actions-for-relevant-performance-measures
#19
T C van Barneveld, S Bhulai, R D van der Mei
We study the Dynamic Ambulance Management (DAM) problem in which one tries to retain the ability to respond to possible future requests quickly when ambulances become busy. To this end, we need models for relocation actions for idle ambulances that incorporate different performance measures related to response times. We focus on rural regions with a limited number of ambulances. We model the region of interest as an equidistant graph and we take into account the current status of both the system and the ambulances in a state...
June 2017: Health Care Management Science
https://www.readbyqxmd.com/read/26386970/case-mix-planning-in-hospitals-a-review-and-future-agenda
#20
Sebastian Hof, Andreas Fügener, Jan Schoenfelder, Jens O Brunner
The case mix planning problem deals with choosing the ideal composition and volume of patients in a hospital. With many countries having recently changed to systems where hospitals are reimbursed for patients according to their diagnosis, case mix planning has become an important tool in strategic and tactical hospital planning. Selecting patients in such a payment system can have a significant impact on a hospital's revenue. The contribution of this article is to provide the first literature review focusing on the case mix planning problem...
June 2017: Health Care Management Science
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