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Patel N, Dalmia VK, Carnevale M, Lipsitz E, Indes J. Identification and characterization of new candidates for abdominal aortic aneurysm screening in patients outside of current accepted guidelines. J Vasc Surg 2023; 78:89-95.e2. [PMID: 36893948 DOI: 10.1016/j.jvs.2023.02.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/21/2023] [Accepted: 02/25/2023] [Indexed: 03/09/2023]
Abstract
BACKGROUND Previous studies have identified groups of patients with abdominal aortic aneurysm (AAA) that fall outside of currently accepted screening guidelines. Population-based studies have found AAA screening would be cost-effective at a prevalence of 0.5% to 1.0%. The goal of this study was to determine the prevalence of AAA in patients that fall outside of the current screening guidelines. In addition, we analyzed outcomes of the groups with a prevalence of greater than 1%. METHODS Using the TriNetX Analytics Network, several patient cohorts were abstracted with a diagnosis of ruptured or unruptured AAA based on previously identified groups with a potentially high risk for AAA that fall outside of currently accepted screening guidelines. Groups were also stratified by sex. For groups found to have a prevalence of greater than 1%, the unruptured patients were further analyzed for long-term rates of rupture and included male ever-smokers aged 45 to 65, male never-smokers aged 65 to 75, male never-smokers aged greater than 75, and female ever-smokers aged 65 or greater. Long-term mortality, stroke, and myocardial infarction rates were compared in patients with treated and untreated AAA after propensity score matching. RESULTS We identified 148,279 patients across the four groups with a prevalence of AAA of greater than 1% with female ever-smokers aged 65 or older being the most prevalent (2.73%). In each of the four groups, the rate of AAA rupture increased every 5 years and all had rupture rates of greater than 1% at 10 years. Meanwhile, controls for each of these four subgroups without a previous AAA diagnosis had rupture rates between 0.090% and 0.013% at 10 years. Those who underwent repair of their AAA had decreased incidence of mortality, stroke, and myocardial infarction. Specifically, male ever-smokers aged 45 to 64 had a significant difference in incidence of mortality and myocardial infarction at 5 years and stroke at 1 and 5 years. CONCLUSIONS Our analysis suggests male ever-smokers aged 45 to 65, male never-smokers aged 65 to 75, male never-smokers aged greater than 75, and female ever-smokers aged 65 or greater have a more than 1% prevalence of AAA and, therefore, may benefit from screening. Outcomes were significantly worse compared with well-matched controls in these groups.
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Affiliation(s)
- Neil Patel
- Division of Vascular and Endovascular Surgery, Department of Cardiothoracic and Vascular Surgery, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY
| | - Varun K Dalmia
- Section of Vascular Surgery, Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, MO
| | - Matthew Carnevale
- Division of Vascular and Endovascular Surgery, Department of Cardiothoracic and Vascular Surgery, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY
| | - Evan Lipsitz
- Division of Vascular and Endovascular Surgery, Department of Cardiothoracic and Vascular Surgery, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY
| | - Jeffrey Indes
- Division of Vascular and Endovascular Surgery, Department of Cardiothoracic and Vascular Surgery, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY.
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2
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Daroudi R, Shafe O, Moosavi J, Salimi J, Bayazidi Y, Zafarghandi MR, Maleki M, Moini M, Farshidmehr P, Sadeghipour P. Cost-effectiveness of a population-based AAA screening program for men over 65 years old in Iran. COST EFFECTIVENESS AND RESOURCE ALLOCATION 2021; 19:29. [PMID: 33985531 PMCID: PMC8120703 DOI: 10.1186/s12962-021-00283-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 05/05/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Screening program tend to recognized patients in their early stage and consequently improve health outcomes. Cost-effectiveness of the abdominal aortic aneurysm (AAA) screening program has been scarcely studied in developing countries. We sought to evaluate the cost-effectiveness of a screening program for the abdominal aortic aneurysm (AAA) in men aged over 65 years in Iran. METHODS A Markov cohort model with 11 mutually exclusive health statuses was used to evaluate the cost-effectiveness of a population-based AAA screening program compared with a no-screening strategy. Transitions between the health statuses were simulated by using 3-month cycles. Data for disease transition probabilities and quality of life outcomes were obtained from published literature, and costs were calculated based on the price of medical services in Iran and the examination of the patients' medical records. The outcomes were life-years gained, the quality-adjusted life-year (QALY), costs, and the incremental cost-effectiveness ratio (ICER). The analysis was conducted for a lifetime horizon from the payer's perspective. Costs and effects were discounted at an annual rate of 3%. Uncertainty surrounding the model inputs was tested with deterministic and probabilistic sensitivity analyses. RESULTS The mean incremental cost of the AAA screening strategy compared with the no-screening strategy was $140 and the mean incremental QALY gain was 0.025 QALY, resulting in an ICER of $5566 ($14,656 PPP) per QALY gained. At a willingness-to-pay of 1 gross domestic product (GDP) per capita ($5628) per QALY gained, the probability of the cost-effectiveness of AAA screening was about 50%. However, at a willingness-to-pay of twice the GDP per capita per QALY gained, there was about a 95% probability for the AAA screening program to be cost-effective in Iran. CONCLUSIONS The results of this study showed that at a willingness-to-pay of 1 GDP per capita per QALY gained, a 1-time AAA screening program for men aged over 65 years could not be cost-effective. Nevertheless, at a willingness-to-pay of twice the GDP per capita per QALY gained, the AAA screening program could be cost-effective in Iran. Further, AAA screening in high-risk groups could be cost-effective at a willingness-to-pay of 1 GDP per capita per QALY gained.
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Affiliation(s)
- Rajabali Daroudi
- Department of Health Economics and Management, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Omid Shafe
- Cardiovascular Intervention Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Vali-Asr Ave, 1995614331, Tehran, Iran
| | - Jamal Moosavi
- Cardiovascular Intervention Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Vali-Asr Ave, 1995614331, Tehran, Iran
| | - Javad Salimi
- Vascular and Endovascular Department, Sina Hospital, Tehran University of Medical Science, Tehran, Iran
| | - Yahya Bayazidi
- Department of Pharmacoeconomics and Pharmaceutical Administration, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Zafarghandi
- Vascular and Endovascular Department, Sina Hospital, Tehran University of Medical Science, Tehran, Iran
| | - Majid Maleki
- Vascular and Endovascular Department, Sina Hospital, Tehran University of Medical Science, Tehran, Iran
| | - Majid Moini
- Vascular and Endovascular Department, Sina Hospital, Tehran University of Medical Science, Tehran, Iran
| | - Pezhman Farshidmehr
- Vascular and Endovascular Department, Sina Hospital, Tehran University of Medical Science, Tehran, Iran
| | - Parham Sadeghipour
- Cardiovascular Intervention Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Vali-Asr Ave, 1995614331, Tehran, Iran.
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3
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Bains P, Oliffe JL, Mackay MH, Kelly MT. Screening Older Adult Men for Abdominal Aortic Aneurysm: A Scoping Review. Am J Mens Health 2021; 15:15579883211001204. [PMID: 33724072 PMCID: PMC7970195 DOI: 10.1177/15579883211001204] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 01/28/2021] [Accepted: 02/10/2021] [Indexed: 11/25/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is a potentially fatal condition predominantly affecting older adult men (60 years or over). Based on evidence, preventative health-care guidelines recommend screening older males for AAA using ultrasound. In attempts to reduce AAA mortality among men, screening has been utilized for early detection in some Western countries including the UK and Sweden. The current scoping review includes 19 empirical studies focusing on AAA screening in men. The findings from these studies highlight benefits and potential harms of male AAA screening. The benefits of AAA screening for men include decreased incidence of AAA rupture, decreased AAA mortality, increased effectiveness of elective AAA repair surgery, and cost-effectiveness. The potential harms of AAA screening included lack of AAA mortality reduction, negative impacts on quality of life, and inconsistent screening eligibility criteria being applied by primary care practitioners. The current scoping review findings are discussed to suggest changes to AAA screening guidelines and improve policy and practice.
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Affiliation(s)
- Priya Bains
- School of Nursing, University of
British Columbia, Vancouver, BC, Canada
| | - John L. Oliffe
- School of Nursing, University of
British Columbia, Vancouver, BC, Canada
- Department of Nursing, University
of Melbourne, Melbourne, VIC, Australia
| | - Martha H. Mackay
- School of Nursing, University of
British Columbia, Vancouver, BC, Canada
- Centre for Health Evaluation and
Outcomes Sciences, Vancouver, BC, Canada
| | - Mary T. Kelly
- School of Nursing, University of
British Columbia, Vancouver, BC, Canada
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4
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FitÉ J, Gimenez E, Soto B, Artigas V, Escudero JR, Bellmunt-Montoya S, Espallargues M. Systematic review on abdominal aortic aneurysm screening cost-efficiency and methodological quality assessment. INT ANGIOL 2020; 40:67-76. [PMID: 33086780 DOI: 10.23736/s0392-9590.20.04547-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Abdominal aortic aneurysm (AAA) is a silent, progressive disease that can lead to death. It is easily diagnosed with noninvasive methods and its routine treatment has excellent results. This creates an optimal situation for population screening programs. The aim of this paper was to assess results and methodological quality of cost-utility studies on screening versus no screening scenarios for AAA to assess future establishment of new AAA screening programs. EVIDENCE ACQUISITON A systematic review of efficiency (cost-effectiveness and cost-utility) studies was performed, finally selecting cost-utility studies on AAA screening versus no screening. Papers were selected that dealt with efficiency of screening for AAA according to PICOTS framework and the methodological quality assessed according to the economic evaluation analyses described by Drummond and Caro. Two independent reviewers were involved in the procedure. EVIDENCE SYNTHESIS Research retrieved 88 studies. From those, 26 showed cost-effectiveness and cost-utility results. Finally, 10 studies had cost-utility results and suited criteria (published in the last 10 years; time-horizon: 10 years or more) for exhaustive analysis. All publications, except one, showed adequate incremental cost-utility ratios according to different national perspectives. Methodological assessment showed some quality limitations, but the majority of items analyzed were favorably answered after applying the questionnaires. CONCLUSIONS Confirmation of the cost-utility results in this revision at a national/regional level should be the basis for the implantation of new national screening programs worldwide. The methodological evaluation applied in this revision is crucial for the corresponding future piggy-back trials to assess routine application of national AAA screening programs.
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Affiliation(s)
- Joan FitÉ
- Centro de Investigación Biomédica en Red (CIBER) Cardiovascular, Department of Vascular Surgery, Hospital de la Santa Creu i Sant Pau, Universitat Autónoma de Barcelona, Barcelona, Spain.,Universitat Autónoma de Barcelona, Barcelona, Spain
| | - Emmanuel Gimenez
- Agència de Qualitat i Avaluació Sanitàries de Catalunya (AQuAS), Generalitat de Catalunya, Barcelona, Spain
| | - Begoña Soto
- Centro de Investigación Biomédica en Red (CIBER) Cardiovascular, Department of Vascular Surgery, Hospital de la Santa Creu i Sant Pau, Universitat Autónoma de Barcelona, Barcelona, Spain.,Universitat Autónoma de Barcelona, Barcelona, Spain
| | - Vicente Artigas
- Centro de Investigación Biomédica en Red (CIBER) Cardiovascular, Department of Vascular Surgery, Hospital de la Santa Creu i Sant Pau, Universitat Autónoma de Barcelona, Barcelona, Spain.,Universitat Autónoma de Barcelona, Barcelona, Spain
| | - Jose R Escudero
- Centro de Investigación Biomédica en Red (CIBER) Cardiovascular, Department of Vascular Surgery, Hospital de la Santa Creu i Sant Pau, Universitat Autónoma de Barcelona, Barcelona, Spain.,Universitat Autónoma de Barcelona, Barcelona, Spain
| | - Sergi Bellmunt-Montoya
- Universitat Autónoma de Barcelona, Barcelona, Spain - .,Department of Vascular Surgery, Hospital Universitari Vall d'Hebron, University of Barcelona, Barcelona, Spain
| | - Mireia Espallargues
- Agència de Qualitat i Avaluació Sanitàries de Catalunya (AQuAS), Generalitat de Catalunya, Barcelona, Spain.,Red de Investigación en Servicios de Salud en Enfermedades Crónicas (REDISSEC), Barcelona, Spain
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5
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Watson JDB, Gifford SM, Bandyk DF. Aortic aneurysm screening using duplex ultrasound: Choosing wisely who to examine. Semin Vasc Surg 2020; 33:54-59. [PMID: 33308596 DOI: 10.1053/j.semvascsurg.2020.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The noninvasive vascular laboratory plays a critical role in screening patients at risk for development of abdominal aortic aneurysm (AAA). One-time duplex ultrasound screening reduces aneurysm-related mortality due to rupture and is cost-effective. Population screening based on AAA risk factors is recommended, as it allows for proactive, elective repair of aneurysms at risk for rupture, and surveillance of smaller aneurysms for enlargement. Utilization of societal screening guidelines, such as those published by the Society for Vascular Surgery, can be employed by vascular laboratories to justify individual patient screening, aid primary care physicians to refer patients for testing, and encourage integrated medical health care systems to build prompts in patient electronic health records to ensure compliance with a AAA screening program. Risk factors for developing AAA, that is, age older than 65 years, male sex, family history, and a smoking history of >100 cigarettes, should be used to recommend patient screening, including for women and other elderly (older than 75 years) patients who fall outside of professional societal guidelines.
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Affiliation(s)
- J Devin B Watson
- David Grant US Air Force Medical Center, Heart, Lung, and Vascular Center, 101 Bodin Circle, Travis Air Force Base, CA 95435.
| | - Shaun M Gifford
- David Grant US Air Force Medical Center, Heart, Lung, and Vascular Center, 101 Bodin Circle, Travis Air Force Base, CA 95435
| | - Dennis F Bandyk
- Division of Vascular and Endovascular Surgery, University of California-San Diego, 9434 Medical Center Drive, La Jolla, CA 92037.
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Summers KL, Kerut EK, Sheahan CM, Sheahan MG. Evaluating the prevalence of abdominal aortic aneurysms in the United States through a national screening database. J Vasc Surg 2020; 73:61-68. [PMID: 32330595 DOI: 10.1016/j.jvs.2020.03.046] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 03/20/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVE The U.S. Preventative Services Task Force guidelines for abdominal aortic aneurysm (AAA) screening are based mainly on studies of older Caucasian males from non-U.S. POPULATIONS This study was designed to analyze the findings of a large, all-inclusive AAA screening program in the United States. METHODS Screening events were held nationally by a U.S. nonprofit organization between 2001 and 2017. AAA screening was offered regardless of risk profile. Participants filled out a demographics form with known comorbidities. Significant risk factors were determined using logistic regression with backward stepwise variable selection. Odds ratios (OR) are reported with 95% confidence intervals (CIs). RESULTS A total of 9457 screened participants (47% male) were analyzed. The mean age was 67 ± 9 years with 40.8% between 65 and 75 years old. Most participants were Caucasian (83.4%), followed by African American (13.1%). Screened risk factors included hypertension (58.1%), hyperlipidemia (54.9%), smoking (52.0%), cardiac disease (29.2%), diabetes mellitus (18.4%), a family history of AAA (22.4%) or brain aneurysms (8.6%), and body mass index (26.9 ± 5.28). Overall, 267 participants (2.82%) were found to have an AAA (>3 cm). Those ages 65 to 75 had a prevalence of 2.98%. In a fully adjusted, multivariate logistic regression, there was an increased risk of AAA in males (OR, 3.24; 95% CI, 2.39-4.40), current smokers (OR, 3.28; 95% CI, 2.36-4.54), previous smokers (OR, 1.86; 95% CI, 1.41-2.47), cardiac disease (OR, 1.30; 95% CI, 1.01-1.68), family history of AAA (OR, 1.60; 95% CI, 1.20-2.14), and advancing age (P < .0001). Female ever smokers 65 to 75 years old had a prevalence of 1.7%. Male smokers 45 to 54 and 55 to 64 years old had a prevalence of 3.37% and 4.43%, respectively. There was an increased risk of AAA in females with morbid obesity (OR, 5.54; 95% CI, 1.34-22.83 in never smokers and OR, 5.61; 95% CI, 1.04-30.15 in smokers), female smokers with hypertension (OR, 3.22; 95% CI, 1.21-8.58), males with cardiac disease (OR, 2.06; 95% CI, 1.08-3.90 in never smokers and OR, 1.48; 95% CI, 1.05-2.09), male smokers with a family history of AAA (OR, 1.69; 95% CI, 1.61-2.46), and current smokers (OR, 6.33; 95% CI, 2.62-15.24 for females and OR, 2.50; 95% CI, 1.70-3.65 for males). CONCLUSIONS This study shows that there remain high-risk groups outside the current guidelines that would likely benefit from AAA screening. Risk factors for AAA include male gender, smoking, cardiac disease, family history of AAA, and advancing age. The most significant risk factor is current smoking status.
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Affiliation(s)
- Kelli L Summers
- Division of Vascular Surgery, Department of Surgery, Louisiana State University Medical Center, New Orleans, La.
| | - Edmund K Kerut
- Division of Cardiovascular Diseases, Department of Medicine, Louisiana State University Medical Center, New Orleans, La
| | - Claudie M Sheahan
- Division of Vascular Surgery, Department of Surgery, Louisiana State University Medical Center, New Orleans, La
| | - Malachi G Sheahan
- Division of Vascular Surgery, Department of Surgery, Louisiana State University Medical Center, New Orleans, La
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7
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van der Vliet N, Suijkerbuijk AW, de Blaeij AT, de Wit GA, van Gils PF, Staatsen BA, Maas R, Polder JJ. Ranking Preventive Interventions from Different Policy Domains: What Are the Most Cost-Effective Ways to Improve Public Health? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17062160. [PMID: 32213919 PMCID: PMC7142580 DOI: 10.3390/ijerph17062160] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/09/2020] [Accepted: 03/16/2020] [Indexed: 12/15/2022]
Abstract
It is widely acknowledged that in order to promote public health and prevent diseases, a wide range of scientific disciplines and sectors beyond the health sector need to be involved. Evidence-based interventions, beyond preventive health interventions targeting disease risk factors and interventions from other sectors, should be developed and implemented. Investing in these preventive health policies is challenging as budgets have to compete with other governmental expenditures. The current study aimed to identify, compare and rank cost-effective preventive interventions targeting metabolic, environmental, occupational and behavioral risk factors. To identify these interventions, a literature search was performed including original full economic evaluations of Western country interventions that had not yet been implemented in the Netherlands. Several workshops were held with experts from different disciplines. In total, 51 different interventions (including 13 cost saving interventions) were identified and ranked based on their incremental cost-effectiveness ratio (ICER) and potential averted disability-adjusted life years (DALYs), resulting in two rankings of the most cost-effective interventions and one ranking of the 13 cost saving interventions. This approach, resulting in an intersectoral ranking, can assist policy makers in implementing cost-effective preventive action that considers not only the health sector, but also other sectors.
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Affiliation(s)
- Nina van der Vliet
- National Institute for Public Health and the Environment (RIVM), 3720 BA Bilthoven, The Netherlands (A.T.d.B.); (G.A.d.W.); (P.F.v.G.); (R.M.); (J.J.P.)
- Tilburg School of Social and Behavioral Sciences, University of Tilburg, 5000 Tilburg, The Netherlands
- Correspondence: ; Tel.: +3130-274-3816
| | - Anita W.M. Suijkerbuijk
- National Institute for Public Health and the Environment (RIVM), 3720 BA Bilthoven, The Netherlands (A.T.d.B.); (G.A.d.W.); (P.F.v.G.); (R.M.); (J.J.P.)
| | - Adriana T. de Blaeij
- National Institute for Public Health and the Environment (RIVM), 3720 BA Bilthoven, The Netherlands (A.T.d.B.); (G.A.d.W.); (P.F.v.G.); (R.M.); (J.J.P.)
| | - G. Ardine de Wit
- National Institute for Public Health and the Environment (RIVM), 3720 BA Bilthoven, The Netherlands (A.T.d.B.); (G.A.d.W.); (P.F.v.G.); (R.M.); (J.J.P.)
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Paul F. van Gils
- National Institute for Public Health and the Environment (RIVM), 3720 BA Bilthoven, The Netherlands (A.T.d.B.); (G.A.d.W.); (P.F.v.G.); (R.M.); (J.J.P.)
| | - Brigit A.M. Staatsen
- National Institute for Public Health and the Environment (RIVM), 3720 BA Bilthoven, The Netherlands (A.T.d.B.); (G.A.d.W.); (P.F.v.G.); (R.M.); (J.J.P.)
| | - Rob Maas
- National Institute for Public Health and the Environment (RIVM), 3720 BA Bilthoven, The Netherlands (A.T.d.B.); (G.A.d.W.); (P.F.v.G.); (R.M.); (J.J.P.)
| | - Johan J. Polder
- National Institute for Public Health and the Environment (RIVM), 3720 BA Bilthoven, The Netherlands (A.T.d.B.); (G.A.d.W.); (P.F.v.G.); (R.M.); (J.J.P.)
- Tilburg School of Social and Behavioral Sciences, University of Tilburg, 5000 Tilburg, The Netherlands
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8
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Castro-Ferreira R, Barreira R, Mendes P, Couto P, Peixoto F, Aguiar M, Neto M, Rolim D, Pinto J, Freitas A, Dias PG, Mansilha A, Teixeira JF, Sampaio SM, Leite-Moreira A. First Population-Based Screening of Abdominal Aortic Aneurysm in Portugal. Ann Vasc Surg 2019; 59:48-53. [DOI: 10.1016/j.avsg.2018.12.091] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/03/2018] [Accepted: 12/15/2018] [Indexed: 01/08/2023]
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9
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Nair N, Kvizhinadze G, Jones GT, Rush R, Khashram M, Roake J, Blakely A. Health gains, costs and cost-effectiveness of a population-based screening programme for abdominal aortic aneurysms. Br J Surg 2019; 106:1043-1054. [PMID: 31115915 DOI: 10.1002/bjs.11169] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/24/2018] [Accepted: 02/12/2019] [Indexed: 01/29/2023]
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA) rupture carries a high fatality rate. AAAs can be detected before rupture by abdominal ultrasound imaging, allowing elective repair. Population-based screening for AAA in older men reduces AAA-related mortality by about 40 per cent. The UK began an AAA screening programme offering one-off scans to men aged 65 years in 2009. Sweden has a similar programme. Currently, there is no AAA screening programme in New Zealand. This cost-utility analysis aimed to assess the cost-effectiveness of a UK-style screening programme in the New Zealand setting. METHODS The analysis compared a formal AAA screening programme (one-off abdominal ultrasound imaging for about 20 000 men aged 65 years in 2011) with no systematic screening. A Markov macrosimulation model was adapted to estimate the health gains (in quality-adjusted life-years, QALYs), health system costs and cost-effectiveness in New Zealand. A health system perspective and lifetime horizon was adopted. RESULTS With New Zealand-specific inputs, the adapted model produced an estimate of about NZ $15 300 (€7746) per QALY gained, with a 95 per cent uncertainty interval (UI) of NZ $8700 to 31 000 (€4405 to 15 694) per QALY gained. Health gains were estimated at 117 (95 per cent UI 53 to 212) QALYs. Health system costs were NZ $1·68 million (€850 535), with a 95 per cent UI of NZ $820 200 to 3·24 million (€415 243 to €1·65 million). CONCLUSION Using New Zealand's gross domestic product per capita (about NZ $45 000 or €22 100) as a cost-effectiveness threshold, a UK-style AAA screening programme would be cost-effective in New Zealand.
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Affiliation(s)
- N Nair
- Burden of Disease Epidemiology, Equity and Cost-Effectiveness Programme (BODE3), Department of Public Health, University of Otago, Wellington, New Zealand
| | - G Kvizhinadze
- Burden of Disease Epidemiology, Equity and Cost-Effectiveness Programme (BODE3), Department of Public Health, University of Otago, Wellington, New Zealand
| | - G T Jones
- Vascular Research Group, Department of Surgical Sciences, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - R Rush
- Waitemata District Health Board, University of Auckland, Auckland, New Zealand
| | - M Khashram
- Department of Surgery, University of Auckland, Auckland, New Zealand
| | - J Roake
- Department of Surgery, University of Otago, Christchurch, New Zealand
| | - A Blakely
- Burden of Disease Epidemiology, Equity and Cost-Effectiveness Programme (BODE3), Department of Public Health, University of Otago, Wellington, New Zealand
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10
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Hultgren R, Linné A, Svensjö S. Cost-effectiveness of targeted screening for abdominal aortic aneurysm in siblings. Br J Surg 2019; 106:206-216. [PMID: 30702746 DOI: 10.1002/bjs.11047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 08/21/2018] [Accepted: 10/10/2018] [Indexed: 12/29/2022]
Abstract
Background Population screening for abdominal aortic aneurysm (AAA) in 65‐year‐old men has been shown to be cost‐effective. A risk group with higher prevalence is siblings of patients with an AAA. This health economic model‐based study evaluated the potential cost‐effectiveness of targeted AAA screening of siblings. Methods A Markov model validated against other screening programmes was used. Two methods of identifying siblings were analysed: direct questioning of patients with an AAA (method A), and employing a national multigeneration register (method B). The prevalence was based on observed ultrasound data on AAAs in siblings. Additional parameters were extracted from RCTs, vascular registers, literature and ongoing screening. The outcome was cost‐effectiveness, probability of cost‐effectiveness at different willingness‐to‐pay (WTP) thresholds, reduction in AAA death, quality‐adjusted life‐years (QALYs) gained and total costs on a national scale. Results Methods A and B were estimated to reduce mortality from AAA, at incremental cost‐effectiveness ratios of €7800 (95 per cent c.i. 4627 to 12 982) and €7666 (5000 to 13 373) per QALY respectively. The probability of cost‐effectiveness was 99 per cent at a WTP of €23 000. The absolute risk reduction in AAA deaths was five per 1000 invited. QALYs gained were 27 per 1000 invited. In a population of ten million, methods A and B were estimated to prevent 12 and 17 AAA deaths, among 2418 and 3572 siblings identified annually, at total costs of €499 500 and €728 700 respectively. Conclusion The analysis indicates that aneurysm‐related mortality could be decreased cost‐effectively by applying a targeted screening method for siblings of patients with an AAA.
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Affiliation(s)
- R Hultgren
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.,Department of Vascular Surgery, Karolinska University Hospital, Stockholm, Sweden
| | - A Linné
- Section of Vascular Surgery, Department of Surgery, Department of Clinical Science and Education, Karolinska Institutet at Södersjukhuset, Stockholm, Sweden
| | - S Svensjö
- Department of Vascular Surgery, Falun County Hospital, Falun, Sweden.,Centre for Clinical Research, Falun, Sweden.,Department of Surgical Sciences, Section of Vascular Surgery, Uppsala University, Uppsala, Sweden
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Abdominal Aortic Aneurysm Screening: A Systematic Review and Meta-analysis of Efficacy and Cost. Ann Vasc Surg 2019; 54:298-303.e3. [DOI: 10.1016/j.avsg.2018.05.044] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 05/05/2018] [Accepted: 05/15/2018] [Indexed: 02/07/2023]
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12
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Borgbjerg J, Bøgsted M, Lindholt JS, Behr-Rasmussen C, Hørlyck A, Frøkjær JB. Superior Reproducibility of the Leading to Leading Edge and Inner to Inner Edge Methods in the Ultrasound Assessment of Maximum Abdominal Aortic Diameter. Eur J Vasc Endovasc Surg 2018; 55:206-213. [DOI: 10.1016/j.ejvs.2017.11.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Accepted: 11/13/2017] [Indexed: 11/28/2022]
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13
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The Society for Vascular Surgery practice guidelines on the care of patients with an abdominal aortic aneurysm. J Vasc Surg 2018; 67:2-77.e2. [DOI: 10.1016/j.jvs.2017.10.044] [Citation(s) in RCA: 1150] [Impact Index Per Article: 191.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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14
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15
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Han SA, Joh JH, Park HC. Risk Factors for Abdominal Aortic Aneurysm in the Korean Population. Ann Vasc Surg 2017; 41:135-140. [DOI: 10.1016/j.avsg.2016.08.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 08/04/2016] [Accepted: 08/13/2016] [Indexed: 01/31/2023]
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16
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van de Luijtgaarden KM, Rouwet EV, Hoeks SE, Stolker RJ, Verhagen HJ, Majoor-Krakauer D. Risk of abdominal aortic aneurysm (AAA) among male and female relatives of AAA patients. Vasc Med 2017; 22:112-118. [PMID: 28429660 DOI: 10.1177/1358863x16686409] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Sex affects the presentation, treatment, and outcomes of abdominal aortic aneurysm (AAA). Although AAAs are less prevalent in women, at least in the general population, women with an AAA have a poorer prognosis in comparison to men. Sex differences in the genetic predisposition for aneurysm disease remain to be established. In this study we investigated the familial risk of AAA for women compared to men. All living AAA patients included in a 2004-2012 prospective database were invited to the multidisciplinary vascular/genetics outpatient clinic between 2009 and 2012 for assessment of family history using detailed questionnaires. AAA risk for male and female relatives was calculated separately and stratified by sex of the AAA patients. Families of 568 AAA patients were investigated and 22.5% of the patients had at least one affected relative. Female relatives had a 2.8-fold and male relatives had a 1.7-fold higher risk than the estimated sex-specific population risk. Relatives of female AAA patients had a higher aneurysm risk than relatives of male patients (9.0 vs 5.9%, p = 0.022), corresponding to 5.5- and 2.0-fold increases in aneurysm risk in the female and male relatives, respectively. The risk for aortic aneurysm in relatives of AAA patients is higher than expected from population risk. The excess risk is highest for the female relatives of AAA patients and for the relatives of female AAA patients. These findings endorse targeted AAA family screening for female and male relatives of all AAA patients.
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Affiliation(s)
| | - Ellen V Rouwet
- 1 Department of Vascular Surgery, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Sanne E Hoeks
- 2 Department of Anesthesiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Robert J Stolker
- 2 Department of Anesthesiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Hence Jm Verhagen
- 1 Department of Vascular Surgery, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Danielle Majoor-Krakauer
- 3 Department of Clinical Genetics, Erasmus University Medical Center, Rotterdam, the Netherlands
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Castro‐Ferreira R, Mendes P, Couto P, Barreira R, Peixoto F, Aguiar M, Neto M, Rolim D, Pinto J, Freitas A, Gonçalves Dias P, Moreira Sampaio S, Leite‐Moreira A, Mansilha A, Teixeira JF. Rastreio populacional de aneurisma da aorta abdominal em Portugal – o imperativo da sua realização. ANGIOLOGIA E CIRURGIA VASCULAR 2016. [DOI: 10.1016/j.ancv.2016.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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18
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Zarrouk M, Lundqvist A, Holst J, Troëng T, Gottsäter A. Cost-effectiveness of Screening for Abdominal Aortic Aneurysm in Combination with Medical Intervention in Patients with Small Aneurysms. Eur J Vasc Endovasc Surg 2016; 51:766-73. [PMID: 26952345 DOI: 10.1016/j.ejvs.2015.12.048] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 12/31/2015] [Indexed: 01/16/2023]
Abstract
OBJECTIVES Screening for abdominal aortic aneurysm (AAA) among 65 year old men has been proven cost-effective, but nowadays is conducted partly under new conditions. The prevalence of AAA has decreased, and endovascular aneurysm repair (EVAR) has become the predominant surgical method for AAA repair in many centers. At the Malmö Vascular Center pharmacological secondary prevention with statins, antiplatelet therapy, and blood pressure reduction is initiated and given to all patients with AAA. This study evaluates the cost-effectiveness of AAA screening under the above mentioned conditions. METHODS This was a Markov cohort simulation. A total of 4,300 65 year old men were invited to annual AAA screening; the attendance rate was 78.3% and AAA prevalence was 1.8%. A Markov model with 11 health states was used to evaluate cost-effectiveness of AAA screening. Background data on rupture risks, costs, and effectiveness of surgical interventions were obtained from the participating unit, the national Swedvasc Registry, and from the scientific literature. RESULTS The additional costs of the screening strategy compared with no screening were €169 per person and year. The incremental health gain per subject in the screened cohort was 0.011 additional quality adjusted life years (QALYs), corresponding to an incremental cost-effectiveness ratio (ICER) of €15710 per QALY. Assuming a 10% reduction of all cause mortality, the incremental cost of screening was €175 per person and year. The gain per subject in the screened cohort was 0.013 additional QALYs, corresponding to an ICER of €13922 per QALY CONCLUSIONS: AAA screening remains cost-effective according to both the Swedish recommendations and the UK National Institute for Health and Care Excellence recommendations in the new era of lower AAA prevalence, EVAR as the predominant surgical method, and secondary prevention for all AAA patients.
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Affiliation(s)
- M Zarrouk
- Department of Vascular Diseases, Skåne University Hospital, Malmö, Sweden.
| | - A Lundqvist
- Swedish Institute for Health Economics, IHE, Lund, Sweden
| | - J Holst
- Department of Vascular Diseases, Skåne University Hospital, Malmö, Sweden
| | - T Troëng
- Department of Surgical Sciences, Vascular Surgery, Uppsala University, Uppsala, Sweden
| | - A Gottsäter
- Department of Vascular Diseases, Skåne University Hospital, Malmö, Sweden
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19
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Grant SW, Sperrin M, Carlson E, Chinai N, Ntais D, Hamilton M, Dunn G, Buchan I, Davies L, McCollum CN. Calculating when elective abdominal aortic aneurysm repair improves survival for individual patients: development of the Aneurysm Repair Decision Aid and economic evaluation. Health Technol Assess 2016; 19:1-154, v-vi. [PMID: 25924187 DOI: 10.3310/hta19320] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA) repair aims to prevent premature death from AAA rupture. Elective repair is currently recommended when AAA diameter reaches 5.5 cm (men) and 5.0 cm (women). Applying population-based indications may not be appropriate for individual patient decisions, as the optimal indication is likely to differ between patients based on age and comorbidities. OBJECTIVE To develop an Aneurysm Repair Decision Aid (ARDA) to indicate when elective AAA repair optimises survival for individual patients and to assess the cost-effectiveness and associated uncertainty of elective repair at the aneurysm diameter recommended by the ARDA compared with current practice. DATA SOURCES The UK Vascular Governance North West and National Vascular Database provided individual patient data to develop predictive models for perioperative mortality and survival. Data from published literature were used to model AAA growth and risk of rupture. The cost-effectiveness analysis used data from published literature and from local and national databases. METHODS A combination of systematic review methods and clinical registries were used to provide data to populate models and inform the structure of the ARDA. Discrete event simulation (DES) was used to model the patient journey from diagnosis to death and synthesised data were used to estimate patient outcomes and costs for elective repair at alternative aneurysm diameters. Eight patient clinical scenarios (vignettes) were used as exemplars. The DES structure was validated by clinical and statistical experts. The economic evaluation estimated costs, quality-adjusted life-years (QALYs) and incremental cost-effectiveness ratios (ICERs) from the NHS, social care provider and patient perspective over a lifetime horizon. Cost-effectiveness acceptability analyses and probabilistic sensitivity analyses explored uncertainty in the data and the value for money of ARDA-based decisions. The ARDA outcome measures include perioperative mortality risk, annual risk of rupture, 1-, 5- and 10-year survival, postoperative long-term survival, median life expectancy and predicted time to current threshold for aneurysm repair. The primary economic measure was the ICER using the QALY as the measure of health benefit. RESULTS The analysis demonstrated it is feasible to build and run a complex clinical decision aid using DES. The model results support current guidelines for most vignettes but suggest that earlier repair may be effective in younger, fitter patients and ongoing surveillance may be effective in elderly patients with comorbidities. The model adds information to support decisions for patients with aneurysms outside current indications. The economic evaluation suggests that using the ARDA compared with current guidelines could be cost-effective but there is a high level of uncertainty. LIMITATIONS Lack of high-quality long-term data to populate all sections of the model meant that there is high uncertainty about the long-term clinical and economic consequences of repair. Modelling assumptions were necessary and the developed survival models require external validation. CONCLUSIONS The ARDA provides detailed information on the potential consequences of AAA repair or a decision not to repair that may be helpful to vascular surgeons and their patients in reaching informed decisions. Further research is required to reduce uncertainty about key data, including reintervention following AAA repair, and assess the acceptability and feasibility of the ARDA for use in routine clinical practice. FUNDING The National Institute for Health Research Health Technology Assessment programme.
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Affiliation(s)
- Stuart W Grant
- Institute of Cardiovascular Sciences, University of Manchester, Manchester, UK
| | - Matthew Sperrin
- Institute of Population Health, University of Manchester, Manchester, UK
| | - Eric Carlson
- Institute of Cardiovascular Sciences, University of Manchester, Manchester, UK
| | - Natasha Chinai
- Institute of Cardiovascular Sciences, University of Manchester, Manchester, UK
| | - Dionysios Ntais
- Institute of Population Health, University of Manchester, Manchester, UK
| | - Matthew Hamilton
- Institute of Population Health, University of Manchester, Manchester, UK
| | - Graham Dunn
- Institute of Population Health, University of Manchester, Manchester, UK
| | - Iain Buchan
- Institute of Population Health, University of Manchester, Manchester, UK
| | - Linda Davies
- Institute of Population Health, University of Manchester, Manchester, UK
| | - Charles N McCollum
- Institute of Cardiovascular Sciences, University of Manchester, Manchester, UK
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20
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Rueda Martínez de Santos JR. [Economic evaluation studies in diagnostic imaging: justification and critical reading]. RADIOLOGIA 2015; 57 Suppl 2:10-22. [PMID: 26563613 DOI: 10.1016/j.rx.2015.09.003] [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: 03/16/2015] [Revised: 08/19/2015] [Accepted: 09/14/2015] [Indexed: 10/22/2022]
Abstract
First, this article describes the concepts and tools most widely used for economic evaluation in healthcare. Second, it discusses some elements that must be taken into account in the social decision about how much we are willing to spend to prolong a person's life by one year. Third, it describes the criteria recommended for the critical analysis of publications that evaluate the economic aspects of health interventions. Finally, several studies about ultrasound screening for aneurysms of the abdominal aorta are used as illustrative examples to show how these elements and criteria can be applied.
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Grøndal N, Søgaard R, Lindholt JS. Baseline prevalence of abdominal aortic aneurysm, peripheral arterial disease and hypertension in men aged 65–74 years from a population screening study (VIVA trial). Br J Surg 2015; 102:902-6. [DOI: 10.1002/bjs.9825] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 11/10/2014] [Accepted: 03/09/2015] [Indexed: 11/08/2022]
Abstract
Abstract
Background
Abdominal aortic aneurysm (AAA) screening has been introduced into some health systems and could easily be supplemented with broader vascular screening. The aim of this study was to evaluate the screening set-up and investigate combined screening for AAA, peripheral arterial disease (PAD) and possible hypertension (HT), and detection rates.
Methods
This observational study was based on the intervention arm of a screening trial in 25 083 Danish men aged 65–74 years. A combined screening programme for AAA, PAD and HT was offered at local hospitals. Participants with positive test results were offered secondary prophylaxis and/or referred to their general practitioner. The programme set-up included decentralized screening by three mobile teams at 14 venues. Diagnostic criteria were: aortic diameter at least 30 mm for AAA, ankle : brachial pressure index below 0·9 or above 1·4 for PAD, and BP exceeding 160/100 mmHg for HT.
Results
Overall, 18 749 men (uptake 74·7 per cent) attended the screening. An AAA was diagnosed in 3·3 (95 per cent c.i. 3·0 to 3·6) per cent, PAD in 10·9 (10·5 to 11·4) per cent and HT in 10·5 (10·0 to 10·9) per cent. Lipid-lowering and/or antiplatelet treatment was initiated in 34·8 per cent of the participants.
Conclusion
Preventive actions were started in one-third of the attenders. The long-term effect of this on morbidity and mortality is an important part of future analysis. The trial confirms that the prevalence of AAA in Denmark has decreased only slightly in the past decade, from 4·0 to 3·3 per cent, in contrast to other nations.
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Affiliation(s)
- N Grøndal
- Vascular Research Unit, Department of Vascular Surgery, Viborg Hospital, Viborg, Denmark
| | - R Søgaard
- Health Economics, Department for Public Health and Department for Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - J S Lindholt
- Vascular Research Unit, Department of Vascular Surgery, Viborg Hospital, Viborg, Denmark
- Department of Thoracic, Heart and Vascular Surgery, Odense University Hospital, Odense, Denmark
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22
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Svensjö S, Björck M, Wanhainen A. Update on Screening for Abdominal Aortic Aneurysm: A Topical Review. Eur J Vasc Endovasc Surg 2014; 48:659-67. [DOI: 10.1016/j.ejvs.2014.08.029] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 08/31/2014] [Indexed: 11/30/2022]
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23
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Earnshaw J. The National Health Service Abdominal Aortic Aneurysm Screening Programme in England. GEFASSCHIRURGIE 2014. [DOI: 10.1007/s00772-014-1331-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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24
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Glover MJ, Kim LG, Sweeting MJ, Thompson SG, Buxton MJ. Cost-effectiveness of the National Health Service Abdominal Aortic Aneurysm Screening Programme in England. Br J Surg 2014; 101:976-82. [PMID: 24862963 PMCID: PMC4231222 DOI: 10.1002/bjs.9528] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2014] [Indexed: 11/09/2022]
Abstract
BACKGROUND Implementation of the National Health Service abdominal aortic aneurysm (AAA) screening programme (NAAASP) for men aged 65 years began in England in 2009. An important element of the evidence base supporting its introduction was the economic modelling of the long-term cost-effectiveness of screening, which was based mainly on 4-year follow-up data from the Multicentre Aneurysm Screening Study (MASS) randomized trial. Concern has been expressed about whether this conclusion of cost-effectiveness still holds, given the early performance parameters, particularly the lower prevalence of AAA observed in NAAASP. METHODS The existing published model was adjusted and updated to reflect the current best evidence. It was recalibrated to mirror the 10-year follow-up data from MASS; the main cost parameters were re-estimated to reflect current practice; and more robust estimates of AAA growth and rupture rates from recent meta-analyses were incorporated, as were key parameters as observed in NAAASP (attendance rates, AAA prevalence and size distributions). RESULTS The revised and updated model produced estimates of the long-term incremental cost-effectiveness of £5758 (95 per cent confidence interval £4285 to £7410) per life-year gained, or £7370 (£5467 to £9443) per quality-adjusted life-year (QALY) gained. CONCLUSION Although the updated parameters, particularly the increased costs and lower AAA prevalence, have increased the cost per QALY, the latest modelling provides evidence that AAA screening as now being implemented in England is still highly cost-effective.
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Affiliation(s)
- M J Glover
- Health Economics Research Group, Brunel University, London, UK
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25
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Svensjö S, Mani K, Björck M, Lundkvist J, Wanhainen A. Screening for Abdominal Aortic Aneurysm in 65-Year-old Men Remains Cost-effective with Contemporary Epidemiology and Management. Eur J Vasc Endovasc Surg 2014; 47:357-65. [DOI: 10.1016/j.ejvs.2013.12.023] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 12/16/2013] [Indexed: 10/25/2022]
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Abstract
Although cardiovascular disease is widely recognized as the leading cause of death, a lesser known fact is that aortic aneurysm is the 15th leading cause of death over the age of 65 years in the USA. The golden standard of the treatments are invasive interventions either with open surgical repair (OS) or endovascular aneurysm repair (EVAR). The concept of medical treatment is to prevent abdominal aortic aneurysm (AAA) from rupture and avoid surgical treatment by preventing aneurysm enlargement or even reducing aneurysm size. Matrix metalloproteinases (MMP) are structurally related metalloendopeptidases that can degrade the extracellular matrix and is thought to play important roles in AAA. There are many proposed pharmacological treatments including: β-blockers, angiotensin-converting enzyme inhibitor (ACE inhibitors), angiotensin-receptor blocker (ARB), statins, macrolides and, doxycycline, an inhibitor of the MMP. The latter is a potential promising drug as medical treatment for AAA and the Non-invasive Treatment of Abdominal Aortic Aneurysm Clinical Trial (N-TA(3)CT) is currently ongoing in the USA. Here, the pathophysiology and potential medical therapy for AAA will be reviewed.
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Affiliation(s)
- Koji Kurosawa
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health
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27
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Ross N, Scott N, Duncan J. Uptake of Abdominal Aortic Aneurysm Screening. A Cohort Study. Eur J Vasc Endovasc Surg 2013; 45:610-5. [DOI: 10.1016/j.ejvs.2013.02.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 02/21/2013] [Indexed: 11/29/2022]
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28
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Davis M, Harris M, Earnshaw JJ. Implementation of the National Health Service Abdominal Aortic Aneurysm Screening Program in England. J Vasc Surg 2013; 57:1440-5. [DOI: 10.1016/j.jvs.2012.10.114] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 10/23/2012] [Accepted: 10/25/2012] [Indexed: 01/16/2023]
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Stather P, Dattani N, Bown M, Earnshaw J, Lees T. International Variations in AAA Screening. Eur J Vasc Endovasc Surg 2013; 45:231-4. [DOI: 10.1016/j.ejvs.2012.12.013] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Accepted: 12/20/2012] [Indexed: 01/08/2023]
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Søgaard R, Laustsen J, Lindholt JS. Cost effectiveness of abdominal aortic aneurysm screening and rescreening in men in a modern context: evaluation of a hypothetical cohort using a decision analytical model. BMJ 2012; 345:e4276. [PMID: 22767630 PMCID: PMC3390434 DOI: 10.1136/bmj.e4276] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To assess the cost effectiveness of different screening strategies for abdominal aortic aneurysm in men, from the perspective of a national health service. SETTING Screening units at regional hospitals. PARTICIPANTS Hypothetical cohort of 65 year old men from the general population. MAIN OUTCOME MEASURES Costs (£ in 2010) and effect on health outcomes (quality adjusted life years (QALYs)). RESULTS Screening seems to be highly cost effective compared with not screening. The model estimated a 92% probability that some form of screening would be cost effective at a threshold of £20,000 (€24,790; $31,460). If men with an aortic diameter of 25-29 mm at the initial screening were rescreened once after five years, 452 men per 100,000 initially screened would benefit from early detection, whereas lifetime rescreening every five years would detect 794 men per 100,000. We estimated the associated incremental cost effectiveness ratios for rescreening once and lifetime rescreening to be £10,013 and £29,680 per QALY, respectively. The individual probability of being the most cost effective strategy was higher for each rescreening strategy than for the screening once strategy (in view of the £20,000 threshold). CONCLUSIONS This study confirms the cost effectiveness of screening versus no screening and lends further support to considerations of rescreening men at least once for abdominal aortic aneurysm.
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Affiliation(s)
- Rikke Søgaard
- Centre for Applied Health Services Research and Technology Assessment, Institute for Public Health, University of Southern Denmark, 5000 Odense, Denmark.
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31
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Darwood R, Brooks M. The Impact of Decreasing Abdominal Aortic Aneurysm Prevalence on a Local Aneurysm Screening Programme. Eur J Vasc Endovasc Surg 2012; 44:45-50. [DOI: 10.1016/j.ejvs.2012.04.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Accepted: 04/10/2012] [Indexed: 11/30/2022]
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32
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Earnshaw JJ. Commentary on 'The impact of decreasing abdominal aortic aneurysm prevalence on a local aneurysm screening programme, Darwood RJ, et al.'. Eur J Vasc Endovasc Surg 2012; 44:51. [PMID: 22578511 DOI: 10.1016/j.ejvs.2012.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Accepted: 04/17/2012] [Indexed: 10/28/2022]
Affiliation(s)
- J J Earnshaw
- Gloucestershire Royal Hospital, Dept of Surgery, Great Western Rd., Gloucester GL1 3NN, United Kingdom.
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