1
|
de la Plaza Llamas R, Ortega Azor L, Hernández Yuste M, Gorini L, Latorre-Fragua RA, Díaz Candelas DA, Al Shwely Abduljabar F, Gemio del Rey IA. Quality-adjusted life years and surgical waiting list: Systematic review of the literature. World J Gastrointest Surg 2024; 16:1155-1164. [PMID: 38690041 PMCID: PMC11056653 DOI: 10.4240/wjgs.v16.i4.1155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/26/2024] [Accepted: 02/25/2024] [Indexed: 04/22/2024] Open
Abstract
BACKGROUND The quality-adjusted life year (QALY) is a metric that is increasingly used today in the field of health economics to evaluate the value of different medical treatments and procedures. Surgical waiting lists (SWLs) represent a pressing problem in public healthcare. The QALY measure has rarely been used in the context of surgery. It would be interesting to know how many QALYs are lost by patients on SWLs. AIM To investigate the relationship between QALYs and SWLs in a systematic review of the scientific literature. METHODS The study was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Statement. An unlimited search was carried out in PubMed, updated on January 19, 2024. Data on the following variables were investigated and analyzed: Specialty, country of study, procedure under study, scale used to measure QALYs, the use of a theoretical or real-life model, objectives of the study and items measured, the economic value assigned to the QALY in the country in question, and the results and conclusions published. RESULTS Forty-eight articles were selected for the study. No data were found regarding QALYs lost on SWLs. The specialties in which QALYs were studied the most in relation to the waiting list were urology and general surgery, with 15 articles each. The country in which the most studies of QALYs were carried out was the United States (n = 21), followed by the United Kingdom (n = 9) and Canada (n = 7). The most studied procedure was organ transplantation (n = 39), including 15 kidney, 14 liver, 5 heart, 4 lung, and 1 intestinal. Arthroplasty (n = 4), cataract surgery (n = 2), bariatric surgery (n = 1), mosaicplasty (n = 1), and septoplasty (n = 1) completed the surgical interventions included. Thirty-nine of the models used were theoretical (the most frequently applied being the Markov model, n = 34), and nine were real-life. The survey used to measure quality of life in 11 articles was the European Quality of Life-5 dimensions, but in 32 articles the survey was not specified. The willingness-to-pay per QALY gained ranged from $100000 in the United States to €20000 in Spain. CONCLUSION The relationship between QALYs and SWLs has only rarely been studied in the literature. The rate of QALYs lost on SWLs has not been determined. Future research is warranted to address this issue.
Collapse
Affiliation(s)
- Roberto de la Plaza Llamas
- Department of General and Digestive Surgery, Hospital Universitario de Guadalajara, Guadalajara 19002, Spain
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares 28871, Madrid, Spain
| | - Lorena Ortega Azor
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares 28871, Madrid, Spain
| | - Marina Hernández Yuste
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares 28871, Madrid, Spain
| | - Ludovica Gorini
- Department of General and Digestive Surgery, Hospital Universitario de Guadalajara, Guadalajara 19002, Spain
| | - Raquel Aránzazu Latorre-Fragua
- Department of General and Digestive Surgery, Hospital Universitario de Guadalajara, Guadalajara 19002, Spain
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares 28871, Madrid, Spain
| | | | - Farah Al Shwely Abduljabar
- Department of General and Digestive Surgery, Hospital Universitario de Guadalajara, Guadalajara 19002, Spain
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares 28871, Madrid, Spain
| | - Ignacio Antonio Gemio del Rey
- Department of General and Digestive Surgery, Hospital Universitario de Guadalajara, Guadalajara 19002, Spain
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares 28871, Madrid, Spain
| |
Collapse
|
2
|
Hill-McManus D. The Difference Method Approach for Sampling Order Constrained Parameters: An Improved Implementation and Important Limitations. PHARMACOECONOMICS 2024; 42:11-18. [PMID: 37603151 DOI: 10.1007/s40273-023-01313-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/03/2023] [Indexed: 08/22/2023]
Abstract
A health economic model may include a set of related inputs whose true values are uncertain, but that can be assumed to follow a logical order. Various approaches are available for performing probabilistic sensitivity analysis while preserving the order constraint, one such approach is known as the difference method. The difference method approach appears to have many of the required properties, has been endorsed by good practice guidelines, and is likely to prove a popular approach. However, the proposed implementation of the difference method approach is cumbersome, requiring numerical estimation, which might present a barrier to its adoption. Furthermore, it is unclear whether the method can always be applied to three or more model inputs and whether it is unbiased across all possible input values. This study has investigated these three issues for ordered inputs bounded between 0 and 1. An analytic solution is given that allows for more straightforward and compact implementation. The difference method approach cannot always be applied to a set of three or more model inputs, and this depends on the relative size of the variances of the logit-transformed Beta distributions fitted to each variable. The approach can also produce samples with biased means and variances under certain combinations of input means and variances. It is recommended that the difference method approach be used where appropriate; however, an understanding of its limitations is necessary to identify such cases.
Collapse
|
3
|
Hanusz K, Domański P, Strojec K, Zapała P, Zapała Ł, Radziszewski P. Prostate Cancer in Transplant Receivers-A Narrative Review on Oncological Outcomes. Biomedicines 2023; 11:2941. [PMID: 38001942 PMCID: PMC10669184 DOI: 10.3390/biomedicines11112941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/19/2023] [Accepted: 10/27/2023] [Indexed: 11/26/2023] Open
Abstract
Prostate cancer (PCa) is a low tumor mutational burden (TMB) cancer with a poor response to immunotherapy. Nonetheless, immunotherapy can be useful, especially in metastatic castration-resistant PCa (mCRPC). Increased cytotoxic T lymphocytes (CTLs) density is correlated with a shorter overall survival (OS), an early biochemical relapse, and a generally poor PCa prognosis. An increased number of CCR4+ regulatory T cells (CCR4 + Tregs) relates to a higher Gleason score or earlier progression. The same therapeutic options are available for renal transplant recipients (RTRs) as for the population, with a comparable functional and oncological outcome. Radical retropubic prostatectomy (RRP) is the most common method of radical treatment in RTRs. Brachytherapy and robot-assisted radical prostatectomy (RARP) seem to be promising therapies. Further studies are needed to assess the need for prostatectomy in low-risk patients before transplantation. The rate of adverse pathological features in RTRs does not seem to differ from those observed in the non-transplant population and the achieved cancer control seems comparable. The association between PCa and transplantation is not entirely clear. Some researchers indicate a possible association between a more frequent occurrence of PCa and a worse prognosis in advanced or metastatic PCa. However, others claim that the risk and survival prognosis is comparable to the non-transplant population.
Collapse
Affiliation(s)
- Karolina Hanusz
- Department of General, Oncological and Functional Urology, Medical University of Warsaw, Poland Lindleya 4, 02-005 Warsaw, Poland
| | - Piotr Domański
- Department of General, Oncological and Functional Urology, Medical University of Warsaw, Poland Lindleya 4, 02-005 Warsaw, Poland
| | - Kacper Strojec
- Department of General, Oncological and Functional Urology, Medical University of Warsaw, Poland Lindleya 4, 02-005 Warsaw, Poland
| | - Piotr Zapała
- Department of General, Oncological and Functional Urology, Medical University of Warsaw, Poland Lindleya 4, 02-005 Warsaw, Poland
| | - Łukasz Zapała
- Department of General, Oncological and Functional Urology, Medical University of Warsaw, Poland Lindleya 4, 02-005 Warsaw, Poland
| | - Piotr Radziszewski
- Department of General, Oncological and Functional Urology, Medical University of Warsaw, Poland Lindleya 4, 02-005 Warsaw, Poland
| |
Collapse
|
4
|
Poinard F, Bessede T, Barrou B, Drouin S, Karam G, Branchereau J, Alezra E, Thuret R, Verhoest G, Goujon A, Millet C, Boissier R, Delaporte V, Sallusto F, Prudhomme T, Boutin JM, Culty T, Timsit MO. Impact of newly diagnosed prostate cancer at time of evaluation for renal transplantation. Clin Transplant 2023; 37:e14998. [PMID: 37138463 DOI: 10.1111/ctr.14998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 04/06/2023] [Accepted: 04/14/2023] [Indexed: 05/05/2023]
Abstract
Systematic screening for prostate cancer is widely recommended in candidates for renal transplant at the time of listing. There are concerns that overdiagnosis of low-risk prostate cancer may result in reducing access to transplant without demonstrated oncological benefits. The objective of the study was to assess the outcome of newly diagnosed prostate cancer in candidates for transplant at the time of listing, and its impact on transplant access and transplant outcomes according to treatment options. This retrospective study was conducted over 10 years in 12 French transplant centers. Patients included were candidates for renal transplant at the time of prostate cancer diagnosis. Demographical and clinical data regarding renal disease, prostate cancer, and transplant surgery were collected. The primary outcome of the study was the interval between prostate cancer diagnosis and active listing according to treatment options. Overall median time from prostate cancer diagnosis to active listing was 25.0 months [16.4-40.2], with statistically significant differences in median time between the radiotherapy and the active surveillance groups (p = .03). Prostate cancer treatment modalities had limited impact on access and outcome of renal transplantation. Active surveillance in low-risk patients does not seem to compromise access to renal transplantation, nor does it impact oncological outcomes.
Collapse
Affiliation(s)
- Florence Poinard
- Department of Urology and Renal Transplantation, Georges Pompidou European Hospital, Paris, France
| | - Thomas Bessede
- Urology Department, Hopitaux Universitaires Paris-Sud, Le Kremlin-Bicetre, France
| | - Benoit Barrou
- Department of Urology and Renal Transplantation, APHP - Sorbonne University, Pitié Salpêtrière University Hospital, Paris, France
| | - Sarah Drouin
- Department of Urology and Renal Transplantation, APHP - Sorbonne University, Pitié Salpêtrière University Hospital, Paris, France
| | - Georges Karam
- Department of Urology & Renal Transplantation, Hotel Dieu University Hospital, Nantes, France
| | - Julien Branchereau
- Department of Urology & Renal Transplantation, Hotel Dieu University Hospital, Nantes, France
| | - Eric Alezra
- Department of Urology, Bordeaux Pellegrin University Hospital, Bordeaux, France
| | - Rodolphe Thuret
- Department of Urology and Transplantation, Montpellier University Hospital, Montpellier, France
| | - Gregory Verhoest
- Department of Urology and Transplantation, Rennes University Hospital, Rennes, France
| | - Anna Goujon
- Department of Urology and Transplantation, Rennes University Hospital, Rennes, France
| | - Clementine Millet
- Department of Urology, University of Clermont-Ferrand, Clermont-Ferrand, France
| | - Romain Boissier
- Department of Urology & Renal Transplantation, La Conception University Hospital, Assistance-Publique Marseille, Aix-Marseille University, Marseille, France
| | - Veronique Delaporte
- Department of Urology & Renal Transplantation, La Conception University Hospital, Assistance-Publique Marseille, Aix-Marseille University, Marseille, France
| | - Federico Sallusto
- Department of Urology, Kidney Transplantation and Andrology, Toulouse Rangueil University Hospital, Toulouse, France
| | - Thomas Prudhomme
- Department of Urology, Kidney Transplantation and Andrology, Toulouse Rangueil University Hospital, Toulouse, France
| | | | - Thibaut Culty
- Department of Urology, Angers University Hospital, Angers, France
| | - Marc-Olivier Timsit
- Department of Urology and Renal Transplantation, Georges Pompidou European Hospital, Paris, France
| |
Collapse
|
5
|
Sarabu N, Dong W, Ray AW, Fernstrum A, Prunty M, Ponsky LE, Shoag JE, Shahinian VB, Lentine KL, Koroukian SM. Treatment patterns and survival of low and intermediate-risk prostate cancer in end-stage kidney disease: A retrospective population cohort study. Cancer Med 2023; 12:7941-7950. [PMID: 36645151 PMCID: PMC10134264 DOI: 10.1002/cam4.5571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 12/02/2022] [Accepted: 12/16/2022] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND In accordance with guidelines, observation with or without active surveillance for low-risk prostate cancer increased in recent years in the general population. We compared treatment patterns and mortality for low- and intermediate-risk prostate cancer and mortality rates among end-stage kidney disease (ESKD) and non-ESKD patients. METHODS This is a retrospective population-based observational cohort study of Surveillance, Epidemiology, and End Results-Medicare data of men aged 66 years and older with localized prostate cancer (2004-2015). ESKD status was determined using Medicare billing codes. Multivariable logistic regression models and Cox-proportional hazards models were used to study definitive treatment patterns and mortality, respectively. RESULTS For low-risk prostate cancer, dialysis patients (N = 83) had lower but not statistically significant odds (OR, 0.74; 95% CI: 0.48-1.16) of receiving definitive treatment than non-ESKD patients (N = 24,935). For those with intermediate-risk prostate cancer, dialysis patients (N = 254) had lower odds to receive definitive treatment (OR, 0.54; 95% CI: 0.42-0.72) than non-ESKD patients (N = 60,883). From 2004-2010 to 2011-2015, for patients with low-risk prostate cancer, while the receipt of definitive treatment for non-ESKD patients trended down from 72% to 48%, it trended up for dialysis patients from 55% to 65%. Kidney transplant patients (N = 33 for low-risk and N = 91 for intermediate-risk) had lower rates of definitive treatment for low-risk and similar rates of treatment for intermediate-risk prostate cancer compared to non-ESKD patients. CONCLUSIONS The disparity in definitive treatment rates for low-risk prostate cancer among dialysis patients exists despite their high mortality, compared to the general population.
Collapse
Affiliation(s)
- Nagaraju Sarabu
- Division of Nephrology, University Hospitals Cleveland Medical Center, Ohio, Cleveland, United States
| | - Weichuan Dong
- Population and Quantitative Health Sciences, Population Cancer Analytics Shared Resource, and the Case Comprehensive Cancer Center, Case Western Reserve University, Ohio, Cleveland, United States
| | - Al W Ray
- Department of Urology, University Hospitals Cleveland Medical Center, Ohio, Cleveland, United States
| | - Austin Fernstrum
- Department of Urology, University Hospitals Cleveland Medical Center, Ohio, Cleveland, United States
| | - Megan Prunty
- Department of Urology, University Hospitals Cleveland Medical Center, Ohio, Cleveland, United States
| | - Lee E Ponsky
- Department of Urology, University Hospitals Cleveland Medical Center, Ohio, Cleveland, United States
| | - Jonathan E Shoag
- Department of Urology, University Hospitals Cleveland Medical Center, Ohio, Cleveland, United States
| | - Vahakn B Shahinian
- Division of Nephrology, Department of Medicine, University of Michigan, Michigan, Ann Arbor, United States
| | - Krista L Lentine
- Center for Abdominal Transplantation, Saint Louis University School of Medicine, Missouri, St. Louis, United States
| | - Siran M Koroukian
- Population and Quantitative Health Sciences, Population Cancer Analytics Shared Resource, and the Case Comprehensive Cancer Center, Case Western Reserve University, Ohio, Cleveland, United States
| |
Collapse
|
6
|
Dharia A, Boulet J, Sridhar VS, Kitchlu A. Cancer Screening in Solid Organ Transplant Recipients: A Focus on Screening Liver, Lung, and Kidney Recipients for Cancers Related to the Transplanted Organ. Transplantation 2022; 106:e64-e65. [PMID: 33795594 DOI: 10.1097/tp.0000000000003773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Over the last few decades, the life expectancy of solid organ transplant recipients (SOTRs) has improved significantly. With SOTRs living longer, more recipients are dying from cancer. There is a reported 2- to 3-fold increased risk of cancer-specific mortality in SOTRs compared with the general population. Cancer in an SOTR can be de novo, recurrent, or donor-derived. Cancer screening in this population is crucial, as early detection and treatment may improve outcomes. In the absence of randomized controlled trials dedicated to SOTRs, clinicians rely on clinical practice guidelines from regional and national transplant societies; however, these may vary considerably across jurisdictions and transplanted organ. At present, no widely accepted consensus exists for cancer screening protocols in SOTRs, particularly with regard to screening for malignancy related to transplanted organ. Some SOTRs may be at higher risk of malignancies within the allograft. This is particularly the case in lung and liver recipients, though less common in kidney recipients who are at increased risk of developing renal cell cancer in their native kidneys. This increased risk has not been uniformly incorporated into screening recommendations for SOTRs. In this review, we summarize the cancer screening recommendations for SOTRs from various transplant organizations based on transplanted organ. This review also discusses the complexity and controversies surrounding screening of cancer in the allograft and future avenues to improve cancer detection in this context. More studies specific to SOTRs are required to form generalizable and evidence-based cancer screening guidelines, particularly with respect to cancer screening in the allograft.
Collapse
Affiliation(s)
- Atit Dharia
- Division of Nephrology, Department of Medicine, University Health Network, Toronto General Hospital, Toronto, ON, Canada
| | - Jacinthe Boulet
- Division of Cardiology, Department of Medicine, Montreal Heart Institute, Montreal, QC, Canada
| | - Vikas S Sridhar
- Division of Nephrology, Department of Medicine, University Health Network, Toronto General Hospital, Toronto, ON, Canada
| | - Abhijat Kitchlu
- Division of Nephrology, Department of Medicine, University Health Network, Toronto General Hospital, Toronto, ON, Canada
| |
Collapse
|
7
|
Abstract
PURPOSE OF REVIEW Kidney and/or pancreas transplantation candidacy criteria have evolved significantly over time reflecting improved pre and post-transplant management. With improvement in medical care, potential candidates for transplant not only are older but also have complex medical issues. This review focuses on the latest trends regarding candidacy for kidney and/or pancreas transplantation along with advances in pretransplant cardiac testing. RECENT FINDINGS More candidates are now eligible for kidney and/or pancreas transplantation owing to less stringent candidacy criteria especially in regards to age, obesity, frailty and history of prior malignancy. Pretransplant cardiovascular assessment has also come a long way with a focus on less invasive strategies to assess for coronary artery disease. SUMMARY Criteria for kidney and/or pancreas transplantation are expanding. Patients who in the past might have been declined because of numerous factors are now finding that transplant centers are more open minded to their candidacy, which could lead to better access to organ transplant wait list.
Collapse
|
8
|
Waiting times in renal transplant candidates with a history of malignancy: time for a change? Curr Opin Nephrol Hypertens 2020; 29:623-629. [PMID: 32941190 DOI: 10.1097/mnh.0000000000000652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW With the aging population of kidney transplant candidates, a history of malignancy is an increasingly prevalent finding. Tumors can constitute a contraindication for transplantation or can lead to a delay of acceptance to the waiting-list. Current waiting time guidelines mainly refer to early data collected nearly 30 years ago, when the knowledge on tumors was, by current standards, still limited. RECENT FINDINGS Today, cancers can usually be divided into many different biological subtypes, according to histological and molecular subclassification and the availability of genetic testing. A more precise stratification and targeted antitumor therapies have led to better therapy outcomes or even cures from certain malignancies and to a better appreciation of tumor risks for the patient. SUMMARY Even though transplant patients do have an increased risk for malignancies, it is often overlooked that patients, while on dialysis, are equally prone to develop a tumor. Competing risks (e.g. cardiovascular, mortality risks) through prolonged time on dialysis have to be equally considered, when the decision for acceptance of a patient to the waiting-list is made. Current waiting time suggestions should be critically reconsidered for every patient after a thorough discussion with an oncologist, including new diagnostic and therapeutic strategies, as well as novel risk stratifications.
Collapse
|