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Ikoma N. What defines the "value" of robotic surgery for patients with gastrointestinal cancers? Perspectives from a U.S. Cancer Center. Ann Gastroenterol Surg 2024; 8:566-579. [PMID: 38957558 PMCID: PMC11216793 DOI: 10.1002/ags3.12792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 02/28/2024] [Accepted: 03/03/2024] [Indexed: 07/04/2024] Open
Abstract
The use of robotic surgery has experienced rapid growth across diverse medical conditions, with a notable emphasis on gastrointestinal cancers. The advanced technologies incorporated into robotic surgery platforms have played a pivotal role in enabling the safe performance of complex procedures, including gastrectomy and pancreatectomy, through a minimally invasive approach. However, there exists a noteworthy gap in high-level evidence demonstrating that robotic surgery for gastric and pancreatic cancers has substantial benefits compared to traditional open or laparoscopic methods. The primary impediment hindering the broader implementation of robotic surgery is its cost. The escalating healthcare expenses in the United States have prompted healthcare providers and payors to explore patient-centered, value-based healthcare models and reimbursement systems that embrace cost-effectiveness. Thus, it is important to determine what defines the value of robotic surgery. It must either maintain or enhance oncological quality and improve complication rates compared to open procedures. Moreover, its true value should be apparent in patients' expedited recovery and improved quality of life. Another essential aspect of robotic surgery's value lies in minimizing or even eliminating opioid use, even after major operations, offering considerable benefits to the broader public health landscape. A quicker return to oncological therapy has the potential to improve overall oncological outcomes, while a speedier return to work not only alleviates individual financial distress but also positively impacts societal productivity. In this article, we comprehensively review and summarize the current landscape of health economics and value-based care, with a focus on robotic surgery for gastrointestinal cancers.
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Affiliation(s)
- Naruhiko Ikoma
- Department of Surgical OncologyThe University of Texas MD Anderson Cancer CenterHoustonTexasUSA
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Maxwell CM, Bhat AM, Falls SJ, Bigbee M, Yin Y, Chalikonda S, Bartlett DL, Fernando HC, Allen CJ. Comprehensive value implications of surgeon volume for lung cancer surgery: Use of an analytic framework within a regional health system. JTCVS OPEN 2024; 17:286-294. [PMID: 38420536 PMCID: PMC10897681 DOI: 10.1016/j.xjon.2023.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 11/08/2023] [Accepted: 11/12/2023] [Indexed: 03/02/2024]
Abstract
Objective We used a framework to assess the value implications of thoracic surgeon operative volume within an 8-hospital health system. Methods Surgical cases for non-small cell lung cancer were assessed from March 2015 to March 2021. High-volume (HV) surgeons performed >25 pulmonary resections annually. Metrics include length of stay, infection rates, 30-day readmission, in-hospital mortality, median 30-day charges and direct costs, and 3-year recurrence-free and overall survival. Multivariate regression-based propensity scores matched patients between groups. Metrics were graphed on radar charts to conceptualize total value. Results All 638 lung resections were performed by 12 surgeons across 6 hospitals. Two HV surgeons performed 51% (n = 324) of operations, and 10 low-volume surgeons performed 49% (n = 314). Median follow-up was 28.8 months (14.0-42.3 months). Lobectomy was performed in 71% (n = 450) of cases. HV surgeons performed more segmentectomies (33% [n = 107] vs 3% [n = 8]; P < .001). Patients of HV surgeons had a lower length of stay (3 [2-4] vs 5 [3-7]; P < .001) and infection rates (0.6% [n = 1] vs 4% [n = 7]; P = .03). Low-volume and HV surgeons had similar 30-day readmission rates (14% [n = 23] vs 7% [n = 12]; P = .12), in-hospital mortality (0% [n = 0] vs 0.6% [n = 1]; P = .33), and oncologic outcomes; 3-year recurrence-free survival was 95% versus 91%; P = .44, and 3-year overall survival was 94% versus 90%; P = 0. Charges were reduced by 28%, and direct costs were reduced by 23% (both P < .001) in the HV cohort. Conclusions HV surgeons provide comprehensive value across a health system. This multidomain framework can be used to help drive oncologic care decisions within a health system.
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Affiliation(s)
- Conor M Maxwell
- Allegheny Health Network Singer Research Institute, Pittsburgh, Pa
| | - Akash M Bhat
- Drexel University College of Medicine, Philadelphia, Pa
| | - Samantha J Falls
- Allegheny Health Network Singer Research Institute, Pittsburgh, Pa
| | - Matthew Bigbee
- Allegheny Health Network Singer Research Institute, Pittsburgh, Pa
| | - Yue Yin
- Allegheny Health Network Singer Research Institute, Pittsburgh, Pa
| | - Sricharan Chalikonda
- Division of Surgical Oncology, Allegheny Health Network Cancer Institute, Pittsburgh, Pa
| | - David L Bartlett
- Division of Surgical Oncology, Allegheny Health Network Cancer Institute, Pittsburgh, Pa
| | - Hiran C Fernando
- Division of Thoracic and Esophageal Surgery, Allegheny Health Network, Pittsburgh, Pa
| | - Casey J Allen
- Division of Surgical Oncology, Allegheny Health Network Cancer Institute, Pittsburgh, Pa
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Allen CJ, Snyder RA, Horn DM, Hudson MF, Barber A, Smieliauskas F, Spears PA, Edge S, Greenup RA. Defining Priorities in Value-Based Cancer Care: Insights From the Alliance for Clinical Trials in Oncology National Cooperative Group Survey. JCO Oncol Pract 2023; 19:932-938. [PMID: 37651652 PMCID: PMC10615548 DOI: 10.1200/op.23.00159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/26/2023] [Accepted: 06/08/2023] [Indexed: 09/02/2023] Open
Abstract
PURPOSE We determine how stakeholders prioritize the importance of oncologic outcomes, patient-reported outcomes (PROs), and cancer-related health care costs. METHODS A survey was distributed to the National Clinical Trials Network Alliance for Clinical Trials in Oncology cooperative group membership from May 14 to June 30, 2022. Respondents were asked to rate (5-point Likert scale) and rank (1-9) evidence-based value domains: overall survival, treatment toxicities/complications, quality of life (QOL), financial toxicity, access to care, compliance with evidence-based care, health system performance, scientific discovery and innovation, and cost to the health care system. RESULTS A total of 514 members responded, including researchers (24.7%), nurses (19.5%), medical oncologists (17.9%), administrators (9.3%), surgical and radiation oncologists (9.1%), patient advocates (3.1%), and nonphysician providers (16.4%). Participants represented various practice settings including National Cancer Institute-designated cancer centers (29.8%), university-affiliated academic cancer centers (21%), hospital-owned oncology practices (21.8%), and others (27.4%). There was agreement in how respondents prioritized value domains (W = 0.39, P < .001). Respondents ranked patient QOL (mean rank: 2.6 ± 1.9) as most important above all other metrics including survival (mean rank: 3.5 ± 0.3) and access to care (mean rank: 3.5 ± 2.1; P < .001). Members engaged in direct patient care also ranked access to care of higher importance than nonclinicians (P = .026). Cost to the health care system (mean rank: 7.5 ± 2.1) and health system performance (mean rank: 7 ± 2) were ranked as least important (P < .001). Inclusion of PROs into therapeutic assessment (59.3%) was the most frequently selected priority of future cooperative group initiatives. CONCLUSION Oncology community stakeholders deemed patient-centered value domains as most important and considered patient QOL the highest priority. Inclusion of PROs into clinical trials was endorsed as an important component of therapeutic assessment. These findings can be taken into consideration when creating a value framework for inclusion in cancer clinical trials.
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Affiliation(s)
- Casey J. Allen
- Division of Surgical Oncology, Institute of Surgery, Allegheny Health Network Cancer, Pittsburgh, PA
| | - Rebecca A. Snyder
- Departments of Surgical Oncology and Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, TX
| | | | - Matthew F. Hudson
- Prisma Health Cancer Institute and University of South Carolina School of Medicine Greenville, Greenville, SC
| | - Anne Barber
- Cancer Control Program of the Alliance for Clinical Trials in Oncology and Cancer Programs of the American College of Surgeons, Chicago, IL
| | - Fabrice Smieliauskas
- Department of Economics and Department of Pharmacy Practice, Wayne State University, Detroit, MI
| | - Patty A. Spears
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Stephen Edge
- Roswell Park Comprehensive Cancer Center and Jacobs School of Medicine, University at Buffalo, Buffalo, NY
| | - Rachel A. Greenup
- Department of Surgery and Smilow Cancer Hospital, Yale School of Medicine, New Haven, CT
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He W, Li M, Cao L, Liu R, You J, Jing F, Zhang J, Zhang W, Feng M. Introducing value-based healthcare perspectives into hospital performance assessment: A scoping review. J Evid Based Med 2023. [PMID: 37228246 DOI: 10.1111/jebm.12534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 05/18/2023] [Indexed: 05/27/2023]
Abstract
OBJECTIVE Value-based healthcare (VBHC) puts patient outcomes at the center of the healthcare process while optimizing the use of hospital resources across multiple stakeholders. This scoping review was conducted to summarize how VBHC had been represented in theory and in practice, how it had been applied to assess hospital performance, and how well it had been ultimately implemented. METHODS For this review, we followed the PRISMA-ScR protocol and searched five major online databases for articles published between January 2006 and July 2022. We included original articles that used the concept of VBHC to conduct performance assessments of healthcare organizations. We extracted and analyzed key concepts and information on the dimensions of VBHC, specific strategies and methods for using VBHC in performance assessment, and the effectiveness of the assessment. RESULTS We identified 48 eligible studies from 7866 articles. Nineteen nonempirical studies focused on the development of a VBHC performance assessment indicator system, and 29 empirical studies reported on the ways and points of introducing VBHC into performance assessment and its effectiveness. Ultimately, we summarized the key dimensions, processes, and effects of performance assessment after introducing VBHC. CONCLUSION Current healthcare performance assessment has begun to focus on implementing VBHC as an integrated strategy, and future work should further clarify the reliability of metrics and their association with evaluation outcomes and consider the effective integration of clinical outcomes and patient-reported outcomes.
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Affiliation(s)
- Wenbo He
- Institute of Hospital Management, West China Hospital of Sichuan University, Chengdu, China
- Saw Swee Hock School of Public Health and Institute of Data Science, National University of Singapore, Singapore
| | - Meixuan Li
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Canada
| | - Liujiao Cao
- West China School of Nursing/West China Hospital, Sichuan University, Chengdu, China
| | - Rui Liu
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jiuhong You
- School of Rehabilitation Sciences, West China Hospital of Sichuan University, Chengdu, China
| | - Fangyuan Jing
- Basic Discipline of Chinese and Western Integrative, West China Hospital, Sichuan University, Chengdu, China
| | - Jiawen Zhang
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Wei Zhang
- West China Biomedical Big Data Center, West China Hospital of Sichuan University, Chengdu, China
| | - Mengling Feng
- Saw Swee Hock School of Public Health and Institute of Data Science, National University of Singapore, Singapore
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Duan R, Tong J, Sutton AJ, Asch DA, Chu H, Schmid CH, Chen Y. Origami plot: a novel multivariate data visualization tool that improves radar chart. J Clin Epidemiol 2023; 156:85-94. [PMID: 36822444 PMCID: PMC10599795 DOI: 10.1016/j.jclinepi.2023.02.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 02/07/2023] [Accepted: 02/15/2023] [Indexed: 02/23/2023]
Abstract
OBJECTIVES We propose the origami plot, which maintains the original functionality of a radar chart and avoids potential misuse of its connected regions, with newly added features to better assist multicriteria decision-making. STUDY DESIGN AND SETTING Built upon a radar chart, the origami plot adds additional auxiliary axes and points such that the area of the connected region of all dots is invariant to the ordering of axes. As such, it enables ranking different individuals by the overall performance for multicriteria decision-making while maintaining the intuitive visual appeal of the radar chart. We develop extensions of the origami plot, including the weighted origami plot, which allows reweighting of each attribute to define the overall performance, and the pairwise origami plot, which highlights comparisons between two individuals. RESULTS We illustrate the different versions of origami plots using the hospital compare database developed by the Centers for Medicare & Medicaid Services (CMS). The plot shows individual hospital's performance on mortality, readmission, complication, and infection, as well as patient experience and timely and effective care, as well as their overall performance across these metrics. The weighted origami plot allows weighing the attributes differently when some are more important than others. We illustrate the potential use of the pairwise origami plot in electronic health records (EHR) system to monitor five clinical measures (body mass index [BMI]), fasting glucose level, blood pressure, triglycerides, and low-density lipoprotein ([LDL] cholesterol) of a patient across multiple hospital visits. CONCLUSION The origami plot is a useful visualization tool to assist multicriteria decision making. It improves radar charts by avoiding potential misuse of the connected regions. It has several new features and allows flexible customization.
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Affiliation(s)
- Rui Duan
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Jiayi Tong
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA, USA
| | - Alex J Sutton
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - David A Asch
- Division of General Internal Medicine, University of Pennsylvania, Philadelphia, PA, USA; Leonard Davis Institute of Health Economics, Philadelphia, PA, USA
| | - Haitao Chu
- Division of Biostatistics, University of Minnesota, Minneapolis, MN, USA; Statistical Research and Innovation, Global Biometrics and Data Management, Pfizer Inc., New York, NY, USA
| | | | - Yong Chen
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA, USA; Leonard Davis Institute of Health Economics, Philadelphia, PA, USA.
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Allen CJ, Smith GL, Prakash L, Volk RJ, Ikoma N, Aloia TA, Gottumukkala V, Katz MHG. What is "Value"? Results of a Survey of Cancer Patients and Providers. Ann Surg Oncol 2022; 29:6537-6545. [PMID: 35391609 DOI: 10.1245/s10434-022-11534-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 01/16/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND We measured the importance patients with gastrointestinal cancer and health care providers place on treatment outcomes, quality of life, and costs. METHODS This cross-sectional survey study was conducted between June 1, 2020 and November 30, 2020. We identified surviving patients who had been treated or were anticipating treatment for pancreatic or gastric cancer at our single institution from January 1, 2000 through January 31, 2020. Surveys assessed the importance patients and providers placed on outcomes, well-being, costs, and experiences. Surveys measured how these values had changed over time. We compared the importance patients and providers place on each of the attributes of value. RESULTS A total of 383 patients and 164 providers responded. Providers felt experience, emotional well-being, and costs were more important than patients themselves did (all p < 0.05). Patients more commonly reported that survival had become more important to them over time, while providers believed that emotional well-being, experience, and costs had become more important to patients (all p < 0.05). Postoperative patients ranked functional well-being as more important than preoperative patients did (p = 0.031). Patients of lower income and education levels more reported concerns of costs over the course of their care (both p < 0.05). Younger age was associated with concern for direct (r = -0.167, p = 0.004) and indirect costs (r = -0.318, p < 0.001). CONCLUSIONS Although there are consistencies amongst the views of cancer patients and providers, there remain discordances in the perception of value. Patients' values differed across their treatment and survivorship course. These data demonstrate the importance of accounting for multistakeholder perspectives in assessments of value in health care.
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Affiliation(s)
- Casey J Allen
- Department of Surgery, Division of Surgical Oncology, Allegheny Health Network, Pittsburgh, PA, USA
| | - Grace L Smith
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Laura Prakash
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Robert J Volk
- Department of Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Naruhiko Ikoma
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Vijaya Gottumukkala
- The Institute for Cancer Care Innovation, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Department of Anesthesiology & Perioperative Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Matthew H G Katz
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Allen CJ, Katz MHG. ASO Author Reflections: Can We Measure 'Value'? Ann Surg Oncol 2022; 29:6546-6547. [PMID: 35254580 DOI: 10.1245/s10434-022-11535-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 01/30/2022] [Indexed: 11/18/2022]
Affiliation(s)
- Casey J Allen
- Department of Surgery, Division of Surgical Oncology, Allegheny Health Network, Pittsburgh, PA, USA
| | - Matthew H G Katz
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Karunakaran M, Jonnada PK, Chandrashekhar SH, Vinayachandran G, Kaambwa B, Barreto SG. Enhancing the cost-effectiveness of surgical care in pancreatic cancer: a systematic review and cost meta-analysis with trial sequential analysis. HPB (Oxford) 2022; 24:309-321. [PMID: 34848126 DOI: 10.1016/j.hpb.2021.11.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/21/2021] [Accepted: 11/07/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Clinical pathways (CP) based on Enhanced recovery after surgery (ERAS®) are increasingly utilised in patients undergoing pancreatoduodenectomy (PD). This systematic review aimed to compare the impact of CPs versus conventional care (CC) on peri-PD costs. METHODS A systematic review of major reference databases was undertaken. Quality assessment was performed using the CHEERS checklist. Incremental cost-effectiveness ratios were calculated as part of the cost-effectiveness analysis. A meta-analysis was performed using random-effects models and Trial sequential analysis (TSA) was used to assess the precision and conclusiveness of the results. RESULTS 14 studies meeting inclusion criteria were included for full qualitative synthesis. All studies reported a reduction in overall costs, length of stay and overall complication rates for CPs when compared to CC. Meta-analysis performed on nine studies demonstrated significantly reduced costs in the CP group, with considerable heterogeneity (Pooled mean difference of $ 4.28 × 103, p < 0.01, I2 = 95%). Cost-effectiveness analysis in relation to complications demonstrated dominance of CPs over CC in being cheaper as well as more effective. TSA supported the cost benefit of enhanced-recovery CPs, displaying minimal type 1 error. CONCLUSION Peri-PD CPs result in significant cost-reduction in comparison to CC.
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Affiliation(s)
- Monish Karunakaran
- Department of Surgical Gastroenterology, SK Hospital, Thiruvananthapuram, India
| | - Pavan K Jonnada
- Department of Surgical Oncology, Basavatarakam Indo-American Cancer Hospital & Research Institute, Hyderabad, India
| | - Sagar H Chandrashekhar
- Department of Gastrointestinal Surgery, Gastrointestinal Oncology, and Bariatric Surgery, Medanta- The Medicity, Gurgaon, India
| | | | - Billingsley Kaambwa
- College of Medicine and Public Health, Flinders University, South Australia, Australia
| | - Savio G Barreto
- College of Medicine and Public Health, Flinders University, South Australia, Australia; Division of Surgery and Perioperative Medicine, Flinders Medical Center, Bedford Park, Adelaide, South Australia, Australia.
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Etges APBS, Stefani LPC, Vrochides D, Nabi J, Polanczyk CA, Urman RD. A Standardized Framework for Evaluating Surgical Enhanced Recovery Pathways: A Recommendations Statement from the TDABC in Health-care Consortium. JOURNAL OF HEALTH ECONOMICS AND OUTCOMES RESEARCH 2021; 8:116-124. [PMID: 34222551 PMCID: PMC8225410 DOI: 10.36469/001c.24590] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/01/2021] [Indexed: 06/13/2023]
Abstract
Background: Innovative methodologies to redesign care delivery are being applied to increase value in health care, including the creation of enhanced recovery pathways (ERPs) for surgical patients. However, there is a lack of standardized methods to evaluate ERP implementation costs. Objectives: This Recommendations Statement aims to introduce a standardized framework to guide the economic evaluation of ERP care-design initiatives, using the Time-Driven Activity-Based Costing (TDABC) methodology. Methods: We provide recommendations on using the proposed framework to support the decision-making processes that incorporate ERPs. Since ERPs are usually composed of activities distributed throughout the patient care pathway, the framework can demonstrate how the TDABC may be a valuable method to evaluate the incremental costs of protocol implementation. Our recommendations are based on the review of available literature and expert opinions of the members of the TDABC in Healthcare Consortium. Results: The ERP framework, composed of 11 steps, was created describing how the techniques and methods can be applied to evaluate the economic impact of an ERP and guide health-care leaders to optimize the decision-making process of incorporating ERPs into health-care settings. Finally, six recommendations are introduced to demonstrate that using the suggested framework could increase value in ERP care-design initiatives by reducing variability in care delivery, educating multidisciplinary teams about value in health, and increasing transparency when managing surgical pathways. Conclusions: Our proposed standardized framework can guide decisions and support measuring improvements in value achieved by incorporating the perioperative redesign protocols.
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Affiliation(s)
- Ana Paula B S Etges
- National Institute of Science and Technology for Health Technology Assessment (IATS) - CNPq/Brazil (project: 465518/2014-1), Porto Alegre, RS, Brazil; School of Technology, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil; Postgraduate Program in Epidemiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Dionisios Vrochides
- Division of Hepatobiliary & Pancreas Surgery, Carolinas Medical Center, Atrium Health, Charlotte, NC, USA
| | - Junaid Nabi
- Harvard University, Harvard Business School, Boston, MA, USA
| | - Carisi Anne Polanczyk
- National Institute of Science and Technology for Health Technology Assessment (IATS) - CNPq/Brazil (project: 465518/2014-1), Porto Alegre, RS, Brazil; Postgraduate Program in Epidemiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Richard D Urman
- National Institute of Science and Technology for Health Technology Assessment (IATS) - CNPq/Brazil (project: 465518/2014-1), Porto Alegre, RS, Brazil; School of Technology, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil; Postgraduate Program in Epidemiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Division of Hepatobiliary & Pancreas Surgery, Carolinas Medical Center, Atrium Health, Charlotte, NC, USA
- Harvard University, Harvard Business School, Boston, MA, USA
- National Institute of Science and Technology for Health Technology Assessment (IATS) - CNPq/Brazil (project: 465518/2014-1), Porto Alegre, RS, Brazil; Postgraduate Program in Epidemiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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