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Moss SF, Shah SC, Tan MC, El-Serag HB. Evolving Concepts in Helicobacter pylori Management. Gastroenterology 2024; 166:267-283. [PMID: 37806461 PMCID: PMC10843279 DOI: 10.1053/j.gastro.2023.09.047] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/10/2023] [Accepted: 09/18/2023] [Indexed: 10/10/2023]
Abstract
Helicobacter pylori is the most common chronic bacterial infection worldwide and the most significant risk factor for gastric cancer, which remains a leading cause of cancer-related death globally. H pylori and gastric cancer continue to disproportionately impact racial and ethnic minority and immigrant groups in the United States. The approach to H pylori case-finding thus far has relied on opportunistic testing based on symptoms or high-risk indicators, such as racial or ethnic background and family history. However, this approach misses a substantial proportion of individuals infected with H pylori who remain at risk for gastric cancer because most infections remain clinically silent. Moreover, individuals with chronic H pylori infection are at risk for gastric preneoplastic lesions, which are also asymptomatic and only reliably diagnosed using endoscopy and biopsy. Thus, to make a significant impact in gastric cancer prevention, a systematic approach is needed to better identify individuals at highest risk of both H pylori infection and its complications, including gastric preneoplasia and cancer. The approach to H pylori eradication must also be optimized given sharply decreasing rates of successful eradication with commonly used therapies and increasing antimicrobial resistance. With growing acceptance that H pylori should be managed as an infectious disease and the increasing availability of susceptibility testing, we now have the momentum to abandon empirical therapies demonstrated to have inadequate eradication rates. Molecular-based susceptibility profiling facilitates selection of a personalized eradication regimen without necessitating an invasive procedure. An improved approach to H pylori eradication coupled with population-level programs for screening and treatment could be an effective and efficient strategy to prevent gastric cancer, especially in minority and potentially marginalized populations that bear the heaviest burden of H pylori infection and its complications.
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Affiliation(s)
- Steven F Moss
- Brown University, Providence, Rhode Island; Providence VA Medical Center, Providence, Rhode Island
| | - Shailja C Shah
- University of California at San Diego, San Diego, California; VA San Diego Healthcare System, San Diego, California
| | - Mimi C Tan
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, Texas
| | - Hashem B El-Serag
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, Texas.
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2
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Herrero R, Carvajal LJ, Camargo MC, Riquelme A, Porras C, Ortiz AP, Camargo LA, Fink V, van De Wyngard V, Lazcano-Ponce E, Canelo-Aybar C, Balbin-Ramon G, Feliu A, Espina C. Latin American and the Caribbean Code Against Cancer 1st edition: Infections and cancer. Cancer Epidemiol 2023; 86 Suppl 1:102435. [PMID: 37852729 DOI: 10.1016/j.canep.2023.102435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/10/2023] [Accepted: 07/23/2023] [Indexed: 10/20/2023]
Abstract
About 13% of all cancers around the world are associated with infectious agents, particularly in low-resource settings. The main infectious agents associated with cancer are Helicobacter pylori (H. pylori), that causes gastric cancer, human papillomavirus (HPV) that causes cervical, vulvar, vaginal, penile, anal, and oropharyngeal cancer, hepatitis B and C viruses that cause liver cancer, and human immunodeficiency virus (HIV), associated with cancers of the cervix, Kaposi sarcoma (KS) and non-Hodgkin´s lymphoma. In Latin America and the Caribbean (LAC), about 150,000 cancer cases are caused annually by infections. The LAC Cancer Code Against Cancer consists of a set of 17 evidence-based and individual-level cancer prevention recommendations targeted to the general population, suited to the epidemiological, socioeconomic, and cultural conditions of the region, and tailored to the availability and accessibility of health-care systems. The recommendations with respect to infection-driven malignancies include testing and treating for H. pylori in the context of specific public health programs, vaccination against HPV and Hepatitis B Virus (HBV) and detection and treatment of chronic infections with HBV, Hepatitis C virus (HCV) and HIV, in addition to the promotion of safe sex and use of condoms to prevent sexually transmitted infections (STI). Countries, policy makers, health care systems and individuals should consider the adoption of these recommendations to help reduce the incidence and mortality of infection-related cancers in LAC, to improve quality of life of individuals and reduce the costs of cancer care in the region.
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Affiliation(s)
- Rolando Herrero
- Agencia Costarricense de Investigaciones Biomédicas, Fundación INCIENSA, Costa Rica.
| | - Loretto J Carvajal
- Agencia Costarricense de Investigaciones Biomédicas, Fundación INCIENSA, Costa Rica
| | - M Constanza Camargo
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Arnoldo Riquelme
- Departamento de Gastroenterología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Chile
| | - Carolina Porras
- Agencia Costarricense de Investigaciones Biomédicas, Fundación INCIENSA, Costa Rica
| | - Ana Patricia Ortiz
- Division of Cancer Control and Population Sciences, University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico
| | | | - Valeria Fink
- Research Department, Fundación Huésped, Pasaje Carlos Gianantonio 3932 (1202), Buenos Aires, Argentina
| | - Vanessa van De Wyngard
- Departamento de Salud Pública, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile. Advanced Center for Chronic Diseases (ACCDiS), FONDAP, Santiago, Chile
| | | | - Carlos Canelo-Aybar
- Department of Clinical Epidemiology and Public Health, Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain
| | - Graciela Balbin-Ramon
- Department of Clinical Epidemiology and Public Health, Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain
| | - Ariadna Feliu
- International Agency for Research on Cancer (IARC/WHO), Environment and Lifestyle Epidemiology Branch, 25 avenue Tony Garnier CS 90627, 69366 Lyon CEDEX 07, France
| | - Carolina Espina
- International Agency for Research on Cancer (IARC/WHO), Environment and Lifestyle Epidemiology Branch, 25 avenue Tony Garnier CS 90627, 69366 Lyon CEDEX 07, France
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3
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Ma J, Yu M, Shao QQ, Yu XC, Zhang C, Zhao JB, Yuan L, Qi YB, Hu RB, Wei PR, Xiao W, Chen Q, Jia BL, Chen CL, Lu H, Ding SZ. Both family-based Helicobacter pylori infection control and management strategy and screen-and-treat strategy are cost-effective for gastric cancer prevention. Helicobacter 2022; 27:e12911. [PMID: 35706404 DOI: 10.1111/hel.12911] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 05/23/2022] [Accepted: 05/28/2022] [Indexed: 12/16/2022]
Abstract
BACKGROUND Helicobacter pylori (H. pylori) infection and its related diseases are substantial public health burden for highly infected areas. Recently, a novel family-based H. pylori infection control and management (FBCM) strategy is introduced for H. pylori infection prevention and control. However, its cost-effectiveness has not been evaluated. We conducted this health economic evaluation to investigate the cost-effectiveness of FBCM, screen-and-treat, and no-screen strategies in Chinese population. MATERIALS AND METHODS Cost-effectiveness analysis was performed using decision tree and Markov model. Parameters required for the model were from published literatures and public databases, including health state utility, screening characteristics, treatment effectiveness, and medical costs for the three strategies. Outcomes were cost, quality-adjusted life year (QALY), incremental cost-effectiveness ratio (ICER). Uncertainty analysis was performed to verify the robustness of this model. RESULTS To prevent gastric cancer in a cohort of 1 million asymptomatic Chinese families, FBCM and screen-and-treat strategies prevented 1010 and 1201 new gastric cancer cases, reduced 2809 and 3339 gastric cancer-related death, and saved 956,971 and 1,137,549 QALYs, respectively, when compared with no-screen strategy. Cost-effectiveness analysis showed that FBCM strategy cost $9.18/QALY, and screen-and-treat strategy cost $12.08/QALY for gastric cancer prevention when compared with no-screen strategy. One-way sensitivity analysis revealed that screening from younger age by both strategies are more cost-effective. When compared with FBCM strategy, screen-and-treat strategy saved 5.98% gastric cancer cases and 5.78% of gastric cancer deaths, but costed $9348 to reduce a gastric cancer case. Results are not sensitive to any variables, and probabilistic sensitivity analysis confirmed robustness of the results. CONCLUSIONS Both FBCM and screen-and-treat strategies are cost-effective for gastric cancer prevention compared with no-screen strategy. Since FBCM is more practical and convenient, it may be an efficient and excellent cost-effective strategy for gastric cancer prevention in H. pylori and gastric cancer prevalent areas.
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Affiliation(s)
- Jing Ma
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Miao Yu
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Qiao-Qiao Shao
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Xue-Chun Yu
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Chen Zhang
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Jun-Bo Zhao
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Lin Yuan
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Ya-Bin Qi
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Ruo-Bing Hu
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Pei-Ru Wei
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Wei Xiao
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Qi Chen
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Bai-Ling Jia
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Chuan-Liang Chen
- Department of Medical Imaging, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Hong Lu
- Department of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Institute of Digestive Disease, Shanghai Jiao Tong University, Shanghai, China
| | - Song-Ze Ding
- Department of Gastroenterology and Hepatology, People's Hospital of Zhengzhou University, and Henan Provincial People's Hospital, Zhengzhou, Henan, China
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4
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Cost-Effectiveness of Screening Helicobacter pylori for Gastric Cancer Prevention: a Systematic Review. J Gastrointest Cancer 2021; 53:1093-1103. [PMID: 34694594 DOI: 10.1007/s12029-021-00726-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2021] [Indexed: 10/20/2022]
Abstract
Globally, prevalence of Helicobacter pylori is around 50%, and it has a directly proportional relationship with gastric cancer. Screening and treatment of Helicobacter pylori could reduce gastric cancer by 35%. Drawing on the scarce resources, it is reasonable to use the most cost-effectiveness Helicobacter pylori screening procedure. The purpose of this study was to evaluate Helicobacter pylori screening techniques and to specify the efficient technique from a cost-effectiveness perspective. This systematic review was conducted via searching electronic databases including Scopus, Embase, PubMed, Web of Science, and Cochrane Reviews. Our search retrieved 904 articles, of which, 606 full-text studies have been selected after duplicate removal. Next, the 25 articles were sorted based on eligibility criteria and quality appraisal; eventually, only eight studies have been included for analysis. We reported the incremental cost-effectiveness ratio (ICER) screening compared to non-screening and different screening strategies. Eight studies were identified and retained for the final analysis. In this study, when screening techniques were compared to no-screening, serology screening techniques showed to be cost-effective. The lowest ICER calculated was US$$1230 cost per life-year gained (LYG) and US$1500 cost per quality-adjusted life-year (QALY). However, determining the optimal strategy compared to other strategies was depended on parameters such as context-specific, type of cost, threshold, and perspective, and also, it influenced by the framework of the cost-effectiveness analysis.
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5
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Zheng H, Xie Q, Zhan M, Jin C, Li Q. Cost‑effectiveness Analysis of Helicobacter pylori Eradication Therapy in First-Degree Relatives of Patients with Gastric Cancer. Patient Prefer Adherence 2021; 15:77-85. [PMID: 33519193 PMCID: PMC7837576 DOI: 10.2147/ppa.s286860] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/15/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Helicobacter pylori (H. pylori) eradication therapy has been shown to reduce the risk of gastric cancer in patients who have a family history of gastric cancer in first-degree relatives. The aim of this study was to assess the cost-effectiveness of H. pylori eradication therapy in a select population in the People's Republic of China. METHODS A Markov model was applied to evaluate the cost-effectiveness of H. pylori eradication therapy. The long-term costs of H. pylori eradication therapy were calculated from the Chinese perspective. Health outcomes were measured by quality-adjusted life years (QALYs). Epidemiological information and health utilities used in the model were collected from published literatures or statistical bureaus. A sensitivity analysis was conducted to explore the influence of parameters on the uncertainty of the model. RESULTS Compared with the no eradication therapy group, H. pylori eradication therapy prolonged an average of 4.52 QALYs (32.64 QALYs vs 28.12 QALYs) and saved $3227.07 ($2472.83 vs $5699.90). The cost-effectiveness analysis demonstrated that no H. pylori eradication therapy cost more and produced less QALYs. It was dominated by H. pylori eradication therapy. The one-way sensitive analyses proved that the results were robust to the fluctuations of the input parameters. CONCLUSION H. pylori eradication therapy not only reduced the risk of gastric cancer in first-degree relatives of patients with gastric cancer but also was an economical strategy with lower costs and greater efficacy.
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Affiliation(s)
- Hanrui Zheng
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Qian Xie
- International Medical Center/Ward of General Practice, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Mei Zhan
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Chaohui Jin
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
- Correspondence: Chaohui Jin Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, People’s Republic of ChinaTel +86-28-85421763 Email
| | - Qiu Li
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
- West China Biomedical Big Data Center, Sichuan University, Chengdu, People’s Republic of China
- Qiu Li Department of Medical Oncology, Cancer Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, People’s Republic of ChinaTel +86-28-85423262 Email
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6
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Ford AC, Yuan Y, Moayyedi P. Helicobacter pylori eradication therapy to prevent gastric cancer: systematic review and meta-analysis. Gut 2020; 69:2113-2121. [PMID: 32205420 DOI: 10.1136/gutjnl-2020-320839] [Citation(s) in RCA: 219] [Impact Index Per Article: 54.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 02/26/2020] [Accepted: 03/09/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Gastric cancer is strongly associated with Helicobacter pylori (H. pylori). We conducted a previous systematic review and meta-analysis that suggested eradication therapy reduced future incidence of gastric cancer, but effect size was uncertain, and there was no reduction in gastric cancer-related mortality. We updated this meta-analysis, as more data has accumulated. We also evaluated impact of eradication therapy on future risk of gastric cancer in patients having endoscopic mucosal resection for gastric neoplasia. DESIGN We searched the medical literature through February 2020 to identify randomised controlled trials (RCTs) examining effect of eradication therapy on subsequent occurrence of gastric cancer in healthy H. pylori-positive adults, and in H. pylori-positive patients with gastric neoplasia undergoing endoscopic mucosal resection. The control arm received placebo or no treatment. Follow-up was for ≥2 years. We estimated the relative risk (RR) number needed to treat (NNT), and evaluated the disability-adjusted life-years (DALYs) gained from screening from the meta-analysis. RESULTS We identified 10 RCTs, seven recruited 8323 healthy individuals, and three randomised 1841 patients with gastric neoplasia. In healthy individuals, eradication therapy reduced incidence of gastric cancer (RR=0.54; 95% CI 0.40 to 0.72, NNT=72), and reduced mortality from gastric cancer (RR=0.61; 95% CI 0.40 to 0.92, NNT=135), but did not affect all-cause mortality. These data suggest that 8 743 815 DALYs (95% CI 5 646 173 to 11 847 456) would be gained if population screening and treatment was implemented globally. In patients with gastric neoplasia, eradication therapy also reduced incidence of future gastric cancer (RR=0.49; 95% CI 0.34 to 0.70, NNT=21). Adverse events were incompletely reported. CONCLUSION There is moderate evidence to suggest that H. pylori eradication therapy reduces the incidence of gastric cancer in healthy individuals and patients with gastric neoplasia in East Asian countries. There also appears to be a reduction in gastric cancer-related mortality.
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Affiliation(s)
- Alexander Charles Ford
- Leeds Gastroenterology Institute, St. James's University Hospital, Leeds, West Yorkshire, UK .,Leeds Institute of Medical Research at St James's, University of Leeds, Leeds, UK
| | - Yuhong Yuan
- Division of Gastroenterology, McMaster University Medical Center, Hamilton, Ontario, Canada
| | - Paul Moayyedi
- Division of Gastroenterology, McMaster University Medical Center, Hamilton, Ontario, Canada
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7
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Jeske R, Reininger D, Turgu B, Brauer A, Harmel C, Fernández de Larrea-Baz N, Martín V, Moreno V, Kogevinas M, Pollán M, Hoheisel JD, Waterboer T, Butt J, Aragonés N, Hufnagel K. Development of Helicobacter pylori Whole-Proteome Arrays and Identification of Serologic Biomarkers for Noncardia Gastric Cancer in the MCC-Spain Study. Cancer Epidemiol Biomarkers Prev 2020; 29:2235-2242. [PMID: 32998950 DOI: 10.1158/1055-9965.epi-20-0348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 06/25/2020] [Accepted: 09/04/2020] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Helicobacter pylori (H. pylori) is a bacterial carcinogen and the leading risk factor for noncardia gastric cancer (NCGC). Detecting antibodies against specific H. pylori proteins in peripheral blood can be applied to characterize infection and determine disease associations. Most studies analyzing the association between H. pylori infection and gastric cancer have focused on previously identified antigens, predominantly the virulence factor cytotoxin-associated gene A (CagA). Selecting antigens in an unbiased approach may, however, allow the identification of novel biomarkers. METHODS Using a combination of multiple spotting technique and cell-free, on-chip protein expression, we displayed the H. pylori genome (strain 26695) on high-density microarrays. Immunogenic proteins were identified by serum pool incubations and henceforth analyzed in individual samples. To test its applicability, we used sera from a multicase-control (MCC)-Spain study. Serologic responses between NCGC cases and controls were assessed by conditional logistic regression estimating ORs and 95% confidence intervals. RESULTS We successfully expressed 93% of the 1,440 H. pylori open reading frames in situ. Of these, 231 (17%) were found to be immunogenic. By comparing 58 NCGC cases with 58 matched controls, we confirmed a higher seroprevalence of CagA among cases (66%) than controls (31%). We further identified a potential novel marker, the Helicobacter outer membrane protein A (HopA). CONCLUSIONS In this study, we provide evidence that our H. pylori whole-proteome microarray offers a platform for unbiased de novo identification of serologic biomarkers. IMPACT Given its versatile workflow, antibody responses against other H. pylori strains and possible associations with diverse H. pylori-related outcomes can be systematically analyzed.
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Affiliation(s)
- Rima Jeske
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany. .,Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Dennis Reininger
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Busra Turgu
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Amber Brauer
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Christoph Harmel
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Nerea Fernández de Larrea-Baz
- Environmental and Cancer Epidemiology Area, National Center of Epidemiology, Carlos III Health Institute (ISCIII), Madrid, Spain.,Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP)-CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Vicente Martín
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP)-CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain.,The Research Group in Gene-Environment and Health Interactions, University of León, León, Spain
| | - Victor Moreno
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP)-CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain.,Cancer Prevention and Control Program, Catalan Institute of Oncology (ICO), Hospitalet de Llobregat, Barcelona, Spain
| | - Manolis Kogevinas
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP)-CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain.,ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
| | - Marina Pollán
- Environmental and Cancer Epidemiology Area, National Center of Epidemiology, Carlos III Health Institute (ISCIII), Madrid, Spain.,Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP)-CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Jörg D Hoheisel
- Functional Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Tim Waterboer
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Julia Butt
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Nuria Aragonés
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP)-CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain.,Epidemiology Section, Division of Public Health, Department of Health, Madrid, Spain
| | - Katrin Hufnagel
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
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8
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Chen Q, Liang X, Long X, Yu L, Liu W, Lu H. Cost-effectiveness analysis of screen-and-treat strategy in asymptomatic Chinese for preventing Helicobacter pylori-associated diseases. Helicobacter 2019; 24:e12563. [PMID: 30672082 DOI: 10.1111/hel.12563] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/21/2018] [Accepted: 12/26/2018] [Indexed: 12/22/2022]
Abstract
BACKGROUND The high prevalence of Helicobacter pylori (H pylori) infection in China results in a substantial public health burden. Medical experts have not agreed on the best solution of population intervention for this problem. We presented a health economic evaluation of a population-based H pylori screen-and-treat strategy for preventing gastric cancer, peptic ulcer disease (PUD), and nonulcer dyspepsia (NUD). MATERIALS AND METHODS Decision trees and Markov models were developed to evaluate the cost-effectiveness of H pylori screening followed by eradication treatment in asymptomatic Chinese. The modeled screen-and-treat strategy reduced the risk of gastric cancer, PUD, and NUD. The main outcomes were the costs, effectiveness, and the incremental cost-effectiveness ratio. Uncertainty was explored by one-way and probabilistic sensitivity analyses. RESULTS For preventing gastric cancer, PUD, and NUD together in a cohort of 10 million asymptomatic Chinese at the age of 20 years, the H pylori screen-and-treat strategy saved 288.1 million dollars, 28 989 life years, and 111 663 quality-adjusted life years, and prevented 11 611 gastric cancers, 5422 deaths from gastric cancer, and 1854 deaths from PUD during life expectancy. Uncertainty of screening age from 20 to 60 did not affect the superiority of the screen-and-treat strategy over the no-screen strategy. The one-way and probabilistic sensitivity analyses confirmed the robustness of our study's results. CONCLUSIONS Compared with the no-screen strategy, population-based screen-and-treat strategy for H pylori infection proved cheaper and more effective for preventing gastric cancer, PUD, and NUD in Chinese asymptomatic general population.
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Affiliation(s)
- Qi Chen
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Institute of Digestive Disease, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao Liang
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Institute of Digestive Disease, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaohua Long
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Institute of Digestive Disease, Shanghai Jiao Tong University, Shanghai, China
| | - Lou Yu
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Institute of Digestive Disease, Shanghai Jiao Tong University, Shanghai, China
| | - Wenzhong Liu
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Institute of Digestive Disease, Shanghai Jiao Tong University, Shanghai, China
| | - Hong Lu
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Institute of Digestive Disease, Shanghai Jiao Tong University, Shanghai, China.,Clinical Research Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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9
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Matsuda A, Saika K, Tanaka R, Ito Y, Fukui K, Kamo KI. Simulation Models in Gastric Cancer Screening: A Systematic Review. Asian Pac J Cancer Prev 2018; 19:3321-3334. [PMID: 30583337 PMCID: PMC6428531 DOI: 10.31557/apjcp.2018.19.12.3321] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 03/04/2018] [Indexed: 12/24/2022] Open
Abstract
Background: Together with such high-quality approaches as randomized controlled trials and large-scale cohort studies, simulation models are often employed to evaluate the effect of cancer screening methods and decide on their appropriateness. This study aimed to evaluate all effects of gastric cancer screening that have been assessed using simulation models, including cost-effectiveness, mortality reduction, and early-stage detection. Methods: We performed a systematic review using PubMed and Web of Science. We evaluated the effect of screening related to cost, such as incremental cost-effectiveness and incremental cost-effectiveness ratios; we also separately assessed effects other than cost, such as quality-adjusted life-years, number of deaths prevented, life-years saved, relative risk of mortality from gastric cancer, life expectancy, and incidence reduction. The methods targeted for evaluation were Helicobacter pylori testing or endoscopy. Results: We identified 19 studies dealing with simulation models in gastric cancer screenings: 14 examined H. pylori screening and 7 focused on endoscopy. Among those studies, two assessed both H. pylori and endoscopy screening. Most of the studies adopted a Markov model, and all the studies evaluated cost-effectiveness. Of the 14 H. pylori screening studies, 13 demonstrated cost-effectiveness and 11 also showed good results other than cost-effectiveness, such as extension of life-years and increase in early-stage detection. In three of the five endoscopy studies, the target population was patients; all five studies obtained good results for cost-effectiveness and four observed good results other than for cost-effectiveness. Conclusions: In this study, we showed that the H. pylori screening test was cost-effective in terms of simulation model investigations. However, the H. pylori screening test should not ordinarily be recommended since there is insufficient evidence that it reduces gastric cancer mortality. In Japan, simulation modeling should be employed to plan for cancer control, and the appropriate use of simulation models should be examined for future use.
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Affiliation(s)
- Ayako Matsuda
- Department of Hygiene and Public Health, Teikyo University School of Medicine, Tokyo, Japan.
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Best LMJ, Takwoingi Y, Siddique S, Selladurai A, Gandhi A, Low B, Yaghoobi M, Gurusamy KS. Non-invasive diagnostic tests for Helicobacter pylori infection. Cochrane Database Syst Rev 2018; 3:CD012080. [PMID: 29543326 PMCID: PMC6513531 DOI: 10.1002/14651858.cd012080.pub2] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND Helicobacter pylori (H pylori) infection has been implicated in a number of malignancies and non-malignant conditions including peptic ulcers, non-ulcer dyspepsia, recurrent peptic ulcer bleeding, unexplained iron deficiency anaemia, idiopathic thrombocytopaenia purpura, and colorectal adenomas. The confirmatory diagnosis of H pylori is by endoscopic biopsy, followed by histopathological examination using haemotoxylin and eosin (H & E) stain or special stains such as Giemsa stain and Warthin-Starry stain. Special stains are more accurate than H & E stain. There is significant uncertainty about the diagnostic accuracy of non-invasive tests for diagnosis of H pylori. OBJECTIVES To compare the diagnostic accuracy of urea breath test, serology, and stool antigen test, used alone or in combination, for diagnosis of H pylori infection in symptomatic and asymptomatic people, so that eradication therapy for H pylori can be started. SEARCH METHODS We searched MEDLINE, Embase, the Science Citation Index and the National Institute for Health Research Health Technology Assessment Database on 4 March 2016. We screened references in the included studies to identify additional studies. We also conducted citation searches of relevant studies, most recently on 4 December 2016. We did not restrict studies by language or publication status, or whether data were collected prospectively or retrospectively. SELECTION CRITERIA We included diagnostic accuracy studies that evaluated at least one of the index tests (urea breath test using isotopes such as 13C or 14C, serology and stool antigen test) against the reference standard (histopathological examination using H & E stain, special stains or immunohistochemical stain) in people suspected of having H pylori infection. DATA COLLECTION AND ANALYSIS Two review authors independently screened the references to identify relevant studies and independently extracted data. We assessed the methodological quality of studies using the QUADAS-2 tool. We performed meta-analysis by using the hierarchical summary receiver operating characteristic (HSROC) model to estimate and compare SROC curves. Where appropriate, we used bivariate or univariate logistic regression models to estimate summary sensitivities and specificities. MAIN RESULTS We included 101 studies involving 11,003 participants, of which 5839 participants (53.1%) had H pylori infection. The prevalence of H pylori infection in the studies ranged from 15.2% to 94.7%, with a median prevalence of 53.7% (interquartile range 42.0% to 66.5%). Most of the studies (57%) included participants with dyspepsia and 53 studies excluded participants who recently had proton pump inhibitors or antibiotics.There was at least an unclear risk of bias or unclear applicability concern for each study.Of the 101 studies, 15 compared the accuracy of two index tests and two studies compared the accuracy of three index tests. Thirty-four studies (4242 participants) evaluated serology; 29 studies (2988 participants) evaluated stool antigen test; 34 studies (3139 participants) evaluated urea breath test-13C; 21 studies (1810 participants) evaluated urea breath test-14C; and two studies (127 participants) evaluated urea breath test but did not report the isotope used. The thresholds used to define test positivity and the staining techniques used for histopathological examination (reference standard) varied between studies. Due to sparse data for each threshold reported, it was not possible to identify the best threshold for each test.Using data from 99 studies in an indirect test comparison, there was statistical evidence of a difference in diagnostic accuracy between urea breath test-13C, urea breath test-14C, serology and stool antigen test (P = 0.024). The diagnostic odds ratios for urea breath test-13C, urea breath test-14C, serology, and stool antigen test were 153 (95% confidence interval (CI) 73.7 to 316), 105 (95% CI 74.0 to 150), 47.4 (95% CI 25.5 to 88.1) and 45.1 (95% CI 24.2 to 84.1). The sensitivity (95% CI) estimated at a fixed specificity of 0.90 (median from studies across the four tests), was 0.94 (95% CI 0.89 to 0.97) for urea breath test-13C, 0.92 (95% CI 0.89 to 0.94) for urea breath test-14C, 0.84 (95% CI 0.74 to 0.91) for serology, and 0.83 (95% CI 0.73 to 0.90) for stool antigen test. This implies that on average, given a specificity of 0.90 and prevalence of 53.7% (median specificity and prevalence in the studies), out of 1000 people tested for H pylori infection, there will be 46 false positives (people without H pylori infection who will be diagnosed as having H pylori infection). In this hypothetical cohort, urea breath test-13C, urea breath test-14C, serology, and stool antigen test will give 30 (95% CI 15 to 58), 42 (95% CI 30 to 58), 86 (95% CI 50 to 140), and 89 (95% CI 52 to 146) false negatives respectively (people with H pylori infection for whom the diagnosis of H pylori will be missed).Direct comparisons were based on few head-to-head studies. The ratios of diagnostic odds ratios (DORs) were 0.68 (95% CI 0.12 to 3.70; P = 0.56) for urea breath test-13C versus serology (seven studies), and 0.88 (95% CI 0.14 to 5.56; P = 0.84) for urea breath test-13C versus stool antigen test (seven studies). The 95% CIs of these estimates overlap with those of the ratios of DORs from the indirect comparison. Data were limited or unavailable for meta-analysis of other direct comparisons. AUTHORS' CONCLUSIONS In people without a history of gastrectomy and those who have not recently had antibiotics or proton ,pump inhibitors, urea breath tests had high diagnostic accuracy while serology and stool antigen tests were less accurate for diagnosis of Helicobacter pylori infection.This is based on an indirect test comparison (with potential for bias due to confounding), as evidence from direct comparisons was limited or unavailable. The thresholds used for these tests were highly variable and we were unable to identify specific thresholds that might be useful in clinical practice.We need further comparative studies of high methodological quality to obtain more reliable evidence of relative accuracy between the tests. Such studies should be conducted prospectively in a representative spectrum of participants and clearly reported to ensure low risk of bias. Most importantly, studies should prespecify and clearly report thresholds used, and should avoid inappropriate exclusions.
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Affiliation(s)
- Lawrence MJ Best
- Royal Free Campus, UCL Medical SchoolDepartment of SurgeryRowland Hill StreetLondonUKNW32PF
| | - Yemisi Takwoingi
- University of BirminghamInstitute of Applied Health ResearchEdgbastonBirminghamUKB15 2TT
| | | | | | | | | | - Mohammad Yaghoobi
- McMaster University and McMaster University Health Sciences CentreDivision of Gastroenterology1200 Main Street WestHamiltonONCanada
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Mahachai V, Vilaichone RK, Pittayanon R, Rojborwonwitaya J, Leelakusolvong S, Maneerattanaporn M, Chotivitayatarakorn P, Treeprasertsuk S, Kositchaiwat C, Pisespongsa P, Mairiang P, Rani A, Leow A, Mya SM, Lee YC, Vannarath S, Rasachak B, Chakravuth O, Aung MM, Ang TL, Sollano JD, Trong Quach D, Sansak I, Wiwattanachang O, Harnsomburana P, Syam AF, Yamaoka Y, Fock KM, Goh KL, Sugano K, Graham D. Helicobacter pylori management in ASEAN: The Bangkok consensus report. J Gastroenterol Hepatol 2018; 33:37-56. [PMID: 28762251 DOI: 10.1111/jgh.13911] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 07/11/2017] [Accepted: 07/21/2017] [Indexed: 12/13/2022]
Abstract
Helicobacter pylori (H. pylori) infection remains to be the major cause of important upper gastrointestinal diseases such as chronic gastritis, peptic ulcer, gastric adenocarcinoma, and mucosa-associated lymphoid tissue lymphoma. H. pylori management in ASEAN: the Bangkok consensus report gathered key opinion leaders for the region to review and evaluate clinical aspects of H. pylori infection and to develop consensus statements, rationales, and grades of recommendation for the management of H. pylori infection in clinical practice in ASEAN countries. This ASEAN Consensus consisted of 34 international experts from 10 ASEAN countries, Japan, Taiwan, and the United States. The meeting mainly focused on four issues: (i) epidemiology and disease association; (ii) diagnostic tests; (iii) management; and (iv) follow-up after eradication. The final results of each workshop were presented for consensus voting by all participants. Statements, rationale, and recommendations were developed from the available current evidence to help clinicians in the diagnosis and treatment of H. pylori and its clinical diseases.
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Affiliation(s)
- Varocha Mahachai
- Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand.,National Gastric Cancer and Gastrointestinal Diseases Research Center, Bangkok, Pathumthani, Thailand
| | - Ratha-Korn Vilaichone
- Department of Medicine, Thammasat University Hospital, Khlong Luang, Pathumthani, Thailand.,National Gastric Cancer and Gastrointestinal Diseases Research Center, Bangkok, Pathumthani, Thailand
| | - Rapat Pittayanon
- Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand.,National Gastric Cancer and Gastrointestinal Diseases Research Center, Bangkok, Pathumthani, Thailand
| | | | | | - Monthira Maneerattanaporn
- Department of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.,National Gastric Cancer and Gastrointestinal Diseases Research Center, Bangkok, Pathumthani, Thailand
| | - Peranart Chotivitayatarakorn
- Department of Medicine, Thammasat University Hospital, Khlong Luang, Pathumthani, Thailand.,National Gastric Cancer and Gastrointestinal Diseases Research Center, Bangkok, Pathumthani, Thailand
| | - Sombat Treeprasertsuk
- Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Chomsri Kositchaiwat
- Department of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | | | - Pisaln Mairiang
- Department of Medicine, Faculty of Medicine, KhonKaen University, Khon Kaen, Thailand
| | - Aziz Rani
- Department of Gastroenterology and Hepatology, University of Jakarta, Jakarta, Indonesia
| | - Alex Leow
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Swe Mon Mya
- Department of Gastroenterology, Yangon General Hospital, Yangon, Myanmar
| | - Yi-Chia Lee
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | | | | | - Oung Chakravuth
- Calmette Hospital, University of Health Science, Phnom Penh, Cambodia
| | - Moe Myint Aung
- Department of Gastroenterology, Yangon General Hospital, Yangon, Myanmar
| | - Tiing-Leong Ang
- Department of Gastroentrology and Hepatology, Changi General Hospital, Singapore
| | - Jose D Sollano
- Section of Gastroenterology, University of Santo Tomas Hospital, Manila, Philippines
| | - Duc Trong Quach
- Department of Internal Medicine, University of Medicine and Pharmacy, Hochiminh City, Vietnam
| | | | | | | | - Ari Fahrial Syam
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, University of Indonesia, Depok, Indonesia
| | - Yoshio Yamaoka
- Department of Environmental and Preventive Medicine, Faculty of Medicine, Oita University, Yufu, Japan
| | - Kwong-Ming Fock
- Faculty of Medicine, National University of Singapore, Singapore
| | - Khean-Lee Goh
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Kentaro Sugano
- Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - David Graham
- Department of Medicine, Gastroenterology Section, Baylor College of Medicine and Michael E. DeBakey VA Medicine Center, Houston, Texas, USA
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周 林, 赵 阳, 张 伟. 幽门螺杆菌根除治疗在胃癌预防中的现状及前景. Shijie Huaren Xiaohua Zazhi 2017; 25:1327-1337. [DOI: 10.11569/wcjd.v25.i15.1327] [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] [Indexed: 02/06/2023] Open
Abstract
幽门螺杆菌(Helicobacter pylori, H. pylori)与胃癌(gastric cancer, GC)发生发展密切相关, 根除H. pylori可降低GC发生率. 经济学分析表明, 在高危人群中根除治疗H. pylori作为预防GC的策略是成本效益较好的. 即使在GC低风险人群中, H. pylori筛查和治疗也能使上消化道其他非恶性疾病获益. 然而, 广泛开展H. pylori根除治疗可能带来其他问题, 包括抗生素耐药增加和与H. pylori负相关疾病(如胃食管反流病、Barrett食管、哮喘和肥胖等)的患病率升高. 本文将结合近年最新研究, 就上述问题展开论述, 进一步提出H. pylori根除治疗预防GC所面临的挑战以及将来可能的进展方向.
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Abstract
Helicobacter pylori is an important human pathogen, associated with a substantial burden from both malignant and non-malignant diseases. The bacterium is classed as a human carcinogen, being strongly linked with gastric cancer, the third most common cause of cancer death worldwide and is also associated with common conditions such as dyspepsia and peptic ulcer. Eradication of H. pylori reduces the incidence of gastric cancer and peptic ulcer, as well as the prevalence and costs of managing dyspepsia. Economic analyses suggest that eradication of H. pylori as a means of controlling gastric cancer is cost-effective in high-risk populations. Even in populations at low risk of gastric cancer, there might be other benefits arising from screening and treatment, owing to the effects on non-malignant upper gastrointestinal diseases. However, public health authorities have been slow to consider the benefits of population-based screening and treatment as a means of reducing the morbidity and mortality associated with the infection. There are also concerns about widespread use of eradication therapy, including antimicrobial resistance and a rise in the prevalence of diseases that are negatively associated with H. pylori, such as GERD, Barrett oesophagus, asthma and obesity. This Review summarizes these issues.
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Teng AM, Kvizhinadze G, Nair N, McLeod M, Wilson N, Blakely T. A screening program to test and treat for Helicobacter pylori infection: Cost-utility analysis by age, sex and ethnicity. BMC Infect Dis 2017; 17:156. [PMID: 28219322 PMCID: PMC5319166 DOI: 10.1186/s12879-017-2259-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Accepted: 02/10/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The World Health Organization recommends all countries consider screening for H. pylori to prevent gastric cancer. We therefore aimed to estimate the cost-effectiveness of a H. pylori serology-based screening program in New Zealand, a country that includes population groups with relatively high gastric cancer rates. METHODS A Markov model was developed using life-tables and morbidity data from a national burden of disease study. The modelled screening program reduced the incidence of non-cardia gastric cancer attributable to H. pylori, if infection was identified by serology screening, and for the population expected to be reached by the screening program. A health system perspective was taken and detailed individual-level costing data was used. RESULTS For adults aged 25-69 years old, nation-wide screening for H. pylori was found to have an incremental cost of US$196 million (95% uncertainty interval [95% UI]: $182-$211 million) with health gains of 14,200 QALYs (95% UI: 5,100-26,300). Cost per QALY gained was US$16,500 ($7,600-$38,400) in the total population and 17% (6%-29%) of future gastric cancer cases could be averted with lifetime follow-up. A targeted screening program for Māori only (indigenous population), was more cost-effective at US$8,000 ($3,800-$18,500) per QALY. CONCLUSIONS This modeling study found that H. pylori screening was likely to be cost-effective in this high-income country, particularly for the indigenous population. While further research is needed to help clarify the precise benefits, costs and adverse effects of such screening programs, there seems a reasonable case for policy-makers to give pilot programs consideration, particularly for any population groups with relatively elevated rates of gastric cancer.
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Affiliation(s)
- Andrea M. Teng
- Department of Public Health, University of Otago, Wellington, New Zealand
| | - Giorgi Kvizhinadze
- Department of Public Health, University of Otago, Wellington, New Zealand
| | - Nisha Nair
- Department of Public Health, University of Otago, Wellington, New Zealand
| | - Melissa McLeod
- Department of Public Health, University of Otago, Wellington, New Zealand
| | - Nick Wilson
- Department of Public Health, University of Otago, Wellington, New Zealand
| | - Tony Blakely
- Department of Public Health, University of Otago, Wellington, New Zealand
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Liu KSH, Wong IOL, Leung WK. Helicobacter pylori associated gastric intestinal metaplasia: Treatment and surveillance. World J Gastroenterol 2016; 22:1311-1320. [PMID: 26811668 PMCID: PMC4716041 DOI: 10.3748/wjg.v22.i3.1311] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 12/01/2015] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer (GC) is one of the leading causes of cancer related death in the world, particularly in East Asia. According to the Correa’s cancer cascade, non-cardia GC is usually developed through a series of mucosal changes from non-atrophic gastritis to atrophic gastritis (AG), intestinal metaplasia (IM), dysplasia and adenocarcinoma. Atrophic gastritis and IM are therefore generally considered to be pre-neoplastic gastric lesions. Helicobacter pylori (H. pylori) infection is an important initiating and promoting step of this gastric carcinogenesis cascade. Emerging long-term data showed that eradication of H. pylori reduced the risk of subsequent cancer development. It however remains confusing whether eradication of the bacterium in individuals with pre-neoplastic gastric lesions could regress these changes as well as in preventing cancer. Whilst H. pylori eradication could likely regress AG, the presence of IM may be a point of no return in this cascade. Hence, surveillance by endoscopy may be indicated in those with extensive IM or those with incomplete IM, particularly in populations with high GC risk. The optimal interval and the best tool of surveillance endoscopy remains to be determined in future studies.
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Zhou HJ, Dan YY, Naidoo N, Li SC, Yeoh KG. A cost-effectiveness analysis evaluating endoscopic surveillance for gastric cancer for populations with low to intermediate risk. PLoS One 2013; 8:e83959. [PMID: 24386314 PMCID: PMC3873968 DOI: 10.1371/journal.pone.0083959] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 11/10/2013] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Gastric cancer (GC) surveillance based on oesophagogastroduodenoscopy (OGD) appears to be a promising strategy for GC prevention. By evaluating the cost-effectiveness of endoscopic surveillance in Singaporean Chinese, this study aimed to inform the implementation of such a program in a population with a low to intermediate GC risk. METHODS USING A REFERENCE STRATEGY OF NO OGD INTERVENTION, WE EVALUATED FOUR STRATEGIES: 2-yearly OGD surveillance, annual OGD surveillance, 2-yearly OGD screening and 2-yearly screening plus annual surveillance in Singaporean Chinese aged 50-69 years. From a perspective of the healthcare system, Markov models were built to simulate the life experience of the target population. The models projected discounted lifetime costs ($), quality adjusted life year (QALY), and incremental cost-effectiveness ratio (ICER) indicating the cost-effectiveness of each strategy against a Singapore willingness-to-pay of $46,200/QALY. Deterministic and probabilistic sensitivity analyses were used to identify the influential variables and their associated thresholds, and to quantify the influence of parameter uncertainties respectively. RESULTS With an ICER of $44,098/QALY, the annual OGD surveillance was the optimal strategy while the 2-yearly surveillance was the most cost-effective strategy (ICER = $25,949/QALY). The screening-based strategies were either extendedly dominated or cost-ineffective. The cost-effectiveness heterogeneity of the four strategies was observed across age-gender subgroups. Eight influential parameters were identified each with their specific thresholds to define the choice of optimal strategy. Accounting for the model uncertainties, the probability that the annual surveillance is the optimal strategy in Singapore was 44.5%. CONCLUSION Endoscopic surveillance is potentially cost-effective in the prevention of GC for populations at low to intermediate risk. Regarding program implementation, a detailed analysis of influential factors and their associated thresholds is necessary. Multiple strategies should be considered in order to recommend the right strategy for the right population.
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Affiliation(s)
- Hui Jun Zhou
- School of Public Health, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yock Young Dan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nasheen Naidoo
- School of Public Health, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Shu Chuen Li
- Discipline of Pharmacy & Experimental Pharmacology, School of Biomedical Sciences & Pharmacy, University of Newcastle, Callaghan, Australia
| | - Khay Guan Yeoh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- * E-mail:
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Lansdorp-Vogelaar I, Sharp L. Cost-effectiveness of screening and treating Helicobacter pylori for gastric cancer prevention. Best Pract Res Clin Gastroenterol 2013; 27:933-47. [PMID: 24182612 PMCID: PMC3880867 DOI: 10.1016/j.bpg.2013.09.005] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 09/17/2013] [Indexed: 01/31/2023]
Abstract
Gastric cancer is the second leading cause of cancer-related death worldwide. A meta-analysis of seven randomized controlled trials concluded that Helicobacter pylori eradication reduces gastric cancer incidence by 35%. Current consensus is that H. pylori screening and treatment is cost-effective only in high-risk populations. This paper provides an up-to-date overview of the evidence for cost-effectiveness of H. pylori screening and treatment in different population settings and risk levels for H. pylori infection. Ten unique cost-effectiveness or cost-utility analyses were identified. All found that screening for H. pylori to prevent gastric cancer in the general population costs less than $50,000 per LYG. This finding was robust for differences in H. pylori prevalence, gender and ethnicity. Based on limited evidence, re-treatment (for treatment failure), repeated screening, limiting screening and treatment to those with the CagA phenotype, or universal treatment, does not appear to be cost-effective. However, most included studies failed to consider both the broader benefits as well as the adverse effects of widespread use of antibiotics for H. pylori.
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Affiliation(s)
- Iris Lansdorp-Vogelaar
- Department of Public Health, Erasmus Medical Centre, PO Box 2040, 3000 CA Rotterdam, The Netherlands.
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Areia M, Carvalho R, Cadime AT, Rocha Gonçalves F, Dinis-Ribeiro M. Screening for gastric cancer and surveillance of premalignant lesions: a systematic review of cost-effectiveness studies. Helicobacter 2013; 18:325-37. [PMID: 23566268 DOI: 10.1111/hel.12050] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Cost-effectiveness studies are highly dependent on the models, settings, and variables used and should be based on systematic reviews. We systematically reviewed cost-effectiveness studies that address screening for gastric cancer and/or surveillance of precancerous conditions and lesions. MATERIALS AND METHODS A systematic review of cost-effectiveness studies was performed by conducting a sensitive search in seven databases (PubMed, Scopus, Web of Science, Current Contents Connect, Centre for Reviews and Dissemination, Academic Search Complete, and CINAHL Plus), independently evaluated by two investigators. Articles were evaluated for type of study, perspective, model, intervention, incremental cost-effectiveness ratio, clinical or cost variables, and quality, according to published guidelines. RESULTS From 2395 abstracts, 23 articles were included: 19 concerning population screening and 4 on following up premalignant lesions. Studies on Helicobacter pylori screening concluded that serology was cost-effective, depending on cancer incidence and endoscopy cost (incremental cost-effectiveness ratio: 6264-25,881), and eradication after endoscopic resection was also cost-effective (dominant) based on one study. Studies on imaging screening concluded that endoscopy was more cost-effective than no screening (incremental cost-effectiveness ratio: 3376-26,836). Articles on follow-up of premalignant lesions reported conflicting results (incremental cost-effectiveness ratio: 1868-72,519 for intestinal metaplasia; 18,600-39,800 for dysplasia). Quality assessment revealed a unanimous lack of a detailed systematic review and fulfillment of a median number of 23 items (20-26) of 35 possible ones. CONCLUSIONS The available evidence shows that Helicobacter pylori serology or endoscopic population screening is cost-effective, while endoscopic surveillance of premalignant gastric lesions presents conflicting results. Better implementation of published guidelines and accomplishment of systematic detailed reviews are needed.
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Affiliation(s)
- Miguel Areia
- CINTESIS - Center for Research in Health Technologies and Information Systems, Faculty of Medicine, Porto University, Porto, Portugal.
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Dinis-Ribeiro M, Areia M, de Vries AC, Marcos-Pinto R, Monteiro-Soares M, O’Connor A, Pereira C, Pimentel-Nunes P, Correia R, Ensari A, Dumonceau JM, Machado JC, Macedo G, Malfertheiner P, Matysiak-Budnik T, Megraud F, Miki K, O’Morain C, Peek RM, Ponchon T, Ristimaki A, Rembacken B, Carneiro F, Kuipers EJ. Management of precancerous conditions and lesions in the stomach (MAPS): guideline from the European Society of Gastrointestinal Endoscopy (ESGE), European Helicobacter Study Group (EHSG), European Society of Pathology (ESP), and the Sociedade Portuguesa de Endoscopia Digestiva (SPED). Virchows Arch 2011; 460:19-46. [DOI: 10.1007/s00428-011-1177-8] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Revised: 10/13/2011] [Accepted: 10/19/2011] [Indexed: 12/16/2022]
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Shin DW, Yun YH, Choi IJ, Koh E, Park SM. Cost-effectiveness of eradication of Helicobacter pylori in gastric cancer survivors after endoscopic resection of early gastric cancer. Helicobacter 2009; 14:536-44. [PMID: 19889071 DOI: 10.1111/j.1523-5378.2009.00721.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Clinical effectiveness of Helicobacter pylori eradication in gastric cancer survivors after endoscopic resection of early gastric cancer (EGC) was recently established in a randomized controlled trial. We aimed to establish long-term cost-effectiveness in gastric cancer survivors after endoscopic resection of EGC. MATERIALS AND METHODS A Markov model was constructed to compare the costs and outcomes of the two intervention strategies: (1) eradicate H. pylori after complete resection of EGC by endoscopy (2) do not eradicate. Estimates for variables in the model were obtained by extensive review of published reports. Analyses were made from the Korean public healthcare provider's perspective. RESULTS Base-case analysis indicated H. pylori eradication costs less (US$ 29,780 vs. US$ 30,594) than no eradication, and save more lives (mean life expectancy from eradication: 13.60 years vs. 13.55 years). One-way and three-way sensitivity analyses showed the robustness of the cost-effectiveness results. CONCLUSION In this selective population with very high risk of developing gastric cancer, H. pylori eradication should be considered for reimbursement with priority to prevent subsequent cancer and also reduce health care cost.
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Affiliation(s)
- Dong Wook Shin
- National Cancer Control Research Institute & Hospital, National Cancer Center, Goyang, Korea
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Xie F, O'Reilly D, Ferrusi IL, Blackhouse G, Bowen JM, Tarride JE, Goeree R. Illustrating economic evaluation of diagnostic technologies: comparing Helicobacter pylori screening strategies in prevention of gastric cancer in Canada. J Am Coll Radiol 2009; 6:317-23. [PMID: 19394572 DOI: 10.1016/j.jacr.2009.01.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2009] [Accepted: 01/22/2009] [Indexed: 01/17/2023]
Abstract
OBJECTIVE The aim of this paper is to present an economic evaluation of diagnostic technologies using Helicobacter pylori screening strategies for the prevention of gastric cancer as an illustration. METHODS A Markov model was constructed to compare the lifetime cost and effectiveness of 4 potential strategies: no screening, the serology test by enzyme-linked immunosorbent assay (ELISA), the stool antigen test (SAT), and the (13)C-urea breath test (UBT) for the detection of H. pylori among a hypothetical cohort of 10,000 Canadian men aged 35 years. Special parameter consideration included the sensitivity and specificity of each screening strategy, which determined the model structure and treatment regimen. The primary outcome measured was the incremental cost-effectiveness ratio between the screening strategies and the no-screening strategy. Base-case analysis and probabilistic sensitivity analysis were performed using the point estimates of the parameters and Monte Carlo simulations, respectively. RESULTS Compared with the no-screening strategy in the base-case analysis, the incremental cost-effectiveness ratio was $33,000 per quality-adjusted life-year (QALY) for the ELISA, $29,800 per QALY for the SAT, and $50,400 per QALY for the UBT. The probabilistic sensitivity analysis revealed that the no-screening strategy was more cost effective if the willingness to pay (WTP) was <$20,000 per QALY, while the SAT had the highest probability of being cost effective if the WTP was >$30,000 per QALY. Both the ELISA and the UBT were not cost-effective strategies over a wide range of WTP values. CONCLUSION Although the UBT had the highest sensitivity and specificity, either no screening or the SAT could be the most cost-effective strategy depending on the WTP threshold values from an economic perspective. This highlights the importance of economic evaluations of diagnostic technologies.
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Affiliation(s)
- Feng Xie
- Programs for Assessment of Technology in Health Research Institute, St Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada.
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Mbulaiteye SM, Hisada M, El-Omar EM. Helicobacter Pylori associated global gastric cancer burden. FRONT BIOSCI-LANDMRK 2009; 14:1490-504. [DOI: 10.2741/3320] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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