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Schnabel-Besson E, Mütze U, Dikow N, Hörster F, Morath MA, Alex K, Brennenstuhl H, Settegast S, Okun JG, Schaaf CP, Winkler EC, Kölker S. Wilson and Jungner Revisited: Are Screening Criteria Fit for the 21st Century? Int J Neonatal Screen 2024; 10:62. [PMID: 39311364 PMCID: PMC11417796 DOI: 10.3390/ijns10030062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2024] [Revised: 08/29/2024] [Accepted: 09/10/2024] [Indexed: 09/26/2024] Open
Abstract
Driven by technological innovations, newborn screening (NBS) panels have been expanded and the development of genomic NBS pilot programs is rapidly progressing. Decisions on disease selection for NBS are still based on the Wilson and Jungner (WJ) criteria published in 1968. Despite this uniform reference, interpretation of the WJ criteria and actual disease selection for NBS programs are highly variable. A systematic literature search [PubMED search "Wilson" AND "Jungner"; last search 16.07.22] was performed to evaluate the applicability of the WJ criteria for current and future NBS programs and the need for adaptation. By at least two reviewers, 105 publications (systematic literature search, N = 77; manual search, N = 28) were screened for relevant content and, finally, 38 publications were evaluated. Limited by the study design of qualitative text analysis, no statistical evaluation was performed, but a structured collection of reported aspects of criticism and proposed improvements was instead collated. This revealed a set of general limitations of the WJ criteria, such as imprecise terminology, lack of measurability and objectivity, missing pediatric focus, and absent guidance on program management. Furthermore, it unraveled specific aspects of criticism on clinical, diagnostic, therapeutic, and economical aspects. A major obstacle was found to be the incompletely understood natural history and phenotypic diversity of rare diseases prior to NBS implementation, resulting in uncertainty about case definition, risk stratification, and indications for treatment. This gap could be closed through the systematic collection and evaluation of real-world evidence on the quality, safety, and (cost-)effectiveness of NBS, as well as the long-term benefits experienced by screened individuals. An integrated NBS public health program that is designed to continuously learn would fulfil these requirements, and a multi-dimensional framework for future NBS programs integrating medical, ethical, legal, and societal perspectives is overdue.
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Affiliation(s)
- Elena Schnabel-Besson
- Division of Pediatric Neurology and Metabolic Medicine, Department of Pediatrics I, Medical Faculty of Heidelberg, Heidelberg University, 69120 Heidelberg, Germany
| | - Ulrike Mütze
- Division of Pediatric Neurology and Metabolic Medicine, Department of Pediatrics I, Medical Faculty of Heidelberg, Heidelberg University, 69120 Heidelberg, Germany
| | - Nicola Dikow
- Institute of Human Genetics, University Hospital Heidelberg, Heidelberg University, 69120 Heidelberg, Germany
| | - Friederike Hörster
- Division of Pediatric Neurology and Metabolic Medicine, Department of Pediatrics I, Medical Faculty of Heidelberg, Heidelberg University, 69120 Heidelberg, Germany
| | - Marina A. Morath
- Division of Pediatric Neurology and Metabolic Medicine, Department of Pediatrics I, Medical Faculty of Heidelberg, Heidelberg University, 69120 Heidelberg, Germany
| | - Karla Alex
- Section Translational Medical Ethics, Department of Medical Oncology, National Center for Tumor Diseases (NCT), Medical Faculty of Heidelberg, Heidelberg University, 69120 Heidelberg, Germany
| | - Heiko Brennenstuhl
- Institute of Human Genetics, University Hospital Heidelberg, Heidelberg University, 69120 Heidelberg, Germany
| | - Sascha Settegast
- Section Translational Medical Ethics, Department of Medical Oncology, National Center for Tumor Diseases (NCT), Medical Faculty of Heidelberg, Heidelberg University, 69120 Heidelberg, Germany
| | - Jürgen G. Okun
- Division of Pediatric Neurology and Metabolic Medicine, Department of Pediatrics I, Medical Faculty of Heidelberg, Heidelberg University, 69120 Heidelberg, Germany
| | - Christian P. Schaaf
- Institute of Human Genetics, University Hospital Heidelberg, Heidelberg University, 69120 Heidelberg, Germany
| | - Eva C. Winkler
- Section Translational Medical Ethics, Department of Medical Oncology, National Center for Tumor Diseases (NCT), Medical Faculty of Heidelberg, Heidelberg University, 69120 Heidelberg, Germany
| | - Stefan Kölker
- Division of Pediatric Neurology and Metabolic Medicine, Department of Pediatrics I, Medical Faculty of Heidelberg, Heidelberg University, 69120 Heidelberg, Germany
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Veldman A, Kiewiet MBG, Westra D, Bosch AM, Brands MMG, de Coo RIFM, Derks TGJ, Fuchs SA, van den Hout JMP, Huidekoper HH, Kluijtmans LAJ, Koop K, Lubout CMA, Mulder MF, Panis B, Rubio-Gozalbo ME, de Sain-van der Velden MG, Schaefers J, Schreuder AB, Visser G, Wevers RA, Wijburg FA, Heiner-Fokkema MR, van Spronsen FJ. A Delphi Survey Study to Formulate Statements on the Treatability of Inherited Metabolic Disorders to Decide on Eligibility for Newborn Screening. Int J Neonatal Screen 2023; 9:56. [PMID: 37873847 PMCID: PMC10594494 DOI: 10.3390/ijns9040056] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/04/2023] [Accepted: 10/05/2023] [Indexed: 10/25/2023] Open
Abstract
The Wilson and Jungner (W&J) and Andermann criteria are meant to help select diseases eligible for population-based screening. With the introduction of next-generation sequencing (NGS) methods for newborn screening (NBS), more inherited metabolic diseases (IMDs) can technically be included, and a revision of the criteria was attempted. This study aimed to formulate statements and investigate whether those statements could elaborate on the criterion of treatability for IMDs to decide on eligibility for NBS. An online Delphi study was started among a panel of Dutch IMD experts (EPs). EPs evaluated, amended, and approved statements on treatability that were subsequently applied to 10 IMDs. After two rounds of Delphi, consensus was reached on 10 statements. Application of these statements selected 5 out of 10 IMDs proposed for this study as eligible for NBS, including 3 IMDs in the current Dutch NBS. The statement: 'The expected benefit/burden ratio of early treatment is positive and results in a significant health outcome' contributed most to decision-making. Our Delphi study resulted in 10 statements that can help to decide on eligibility for inclusion in NBS based on treatability, also showing that other criteria could be handled in a comparable way. Validation of the statements is required before these can be applied as guidance to authorities.
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Affiliation(s)
- Abigail Veldman
- Division of Metabolic Diseases, Beatrix Children’s Hospital, University of Groningen, University Medical Center Groningen, 9718 GZ Groningen, The Netherlands
| | - M. B. Gea Kiewiet
- Department of Genetics, University of Groningen, University Medical Center Groningen, 9718 GZ Groningen, The Netherlands
| | - Dineke Westra
- Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Annet M. Bosch
- Department of Pediatrics, Division of Metabolic Disorders, Emma Children’s Hospital, Amsterdam University Medical Centre, 1105 AZ Amsterdam, The Netherlands
| | - Marion M. G. Brands
- Department of Pediatrics, Division of Metabolic Disorders, Emma Children’s Hospital, Amsterdam University Medical Centre, 1105 AZ Amsterdam, The Netherlands
| | - René I. F. M. de Coo
- Department of Toxicogenomics, Unit Clinical Genomics, MHeNs School for Mental Health and Neuroscience, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Terry G. J. Derks
- Division of Metabolic Diseases, Beatrix Children’s Hospital, University of Groningen, University Medical Center Groningen, 9718 GZ Groningen, The Netherlands
| | - Sabine A. Fuchs
- Department of Metabolic Diseases, University Medical Center Utrecht, Wilhelmina Children’s Hospital, 3584 EA Utrecht, The Netherlands
| | - Johanna. M. P. van den Hout
- Department of Pediatrics, Center for Lysosomal and Metabolic Diseases, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Hidde H. Huidekoper
- Department of Pediatrics, Center for Lysosomal and Metabolic Diseases, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Leo A. J. Kluijtmans
- Department of Human Genetics, Translational Metabolic Laboratory, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands (R.A.W.)
| | - Klaas Koop
- Department of Metabolic Diseases, University Medical Center Utrecht, Wilhelmina Children’s Hospital, 3584 EA Utrecht, The Netherlands
| | - Charlotte M. A. Lubout
- Division of Metabolic Diseases, Beatrix Children’s Hospital, University of Groningen, University Medical Center Groningen, 9718 GZ Groningen, The Netherlands
| | - Margaretha F. Mulder
- Department of Pediatrics, Division of Metabolic Disorders, Emma Children’s Hospital, Amsterdam University Medical Centre, 1105 AZ Amsterdam, The Netherlands
| | - Bianca Panis
- Department of Pediatrics, Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands
| | - M. Estela Rubio-Gozalbo
- Department of Pediatrics and Clinical Genetics, Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands
| | | | - Jaqueline Schaefers
- Department of Pediatrics, Maastricht University Medical Center, 6229 HX Maastricht, The Netherlands
| | - Andrea B. Schreuder
- Division of Metabolic Diseases, Beatrix Children’s Hospital, University of Groningen, University Medical Center Groningen, 9718 GZ Groningen, The Netherlands
| | - Gepke Visser
- Department of Pediatrics, Division of Metabolic Disorders, Emma Children’s Hospital, Amsterdam University Medical Centre, 1105 AZ Amsterdam, The Netherlands
- Department of Metabolic Diseases, University Medical Center Utrecht, Wilhelmina Children’s Hospital, 3584 EA Utrecht, The Netherlands
| | - Ron A. Wevers
- Department of Human Genetics, Translational Metabolic Laboratory, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands (R.A.W.)
| | - Frits A. Wijburg
- Department of Pediatrics, Division of Metabolic Disorders, Emma Children’s Hospital, Amsterdam University Medical Centre, 1105 AZ Amsterdam, The Netherlands
| | - M. Rebecca Heiner-Fokkema
- Department of Laboratory Medicine, Laboratory of Metabolic Diseases, University of Groningen, University Medical Center Groningen, 9718 GZ Groningen, The Netherlands
| | - Francjan J. van Spronsen
- Division of Metabolic Diseases, Beatrix Children’s Hospital, University of Groningen, University Medical Center Groningen, 9718 GZ Groningen, The Netherlands
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IJzebrink A, van Dijk T, Franková V, Loeber G, Kožich V, Henneman L, Jansen M. Informing Parents about Newborn Screening: A European Comparison Study. Int J Neonatal Screen 2021; 7:ijns7010013. [PMID: 33652810 PMCID: PMC7930998 DOI: 10.3390/ijns7010013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/19/2021] [Accepted: 02/23/2021] [Indexed: 11/16/2022] Open
Abstract
Knowledge about newborn screening (NBS) is an important factor for parents to make an informed decision about participation. In Europe, countries inform parents differently about their NBS program, potentially including different knowledge aspects in their information. The aim of this study was to assess twenty-six European parental information products and to analyze their knowledge aspects through a content analysis. The analyzed aspects were compared to a list of eight knowledge aspects from scientific literature. The list includes aspects important for parents' decision-making, such as the purpose of screening. The study showed that most of the eight knowledge aspects are included in NBS information products of the majority of countries. However, there were differences between countries, for example in the amount of detail and phrasing of the information. Additional relevant knowledge aspects have also been identified and are recommended to optimize information products, such as the handling of residual bloodspot samples. This study only assessed knowledge aspects in information products meant for printing, but many countries also use other communication methods, and the impact on knowledge of the delivery of the information needs further study. Preferences of parents on alternative communication methods need to be considered and evaluated on their effectiveness.
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Affiliation(s)
- Amber IJzebrink
- Department of Clinical Genetics, Section Community Genetics, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, 1007 MB Amsterdam, The Netherlands; (A.IJ.); (T.v.D.); (L.H.)
| | - Tessa van Dijk
- Department of Clinical Genetics, Section Community Genetics, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, 1007 MB Amsterdam, The Netherlands; (A.IJ.); (T.v.D.); (L.H.)
| | - Věra Franková
- Department of Pediatrics and Inherited Metabolic Disorders, Charles University First Faculty of Medicine and General University Hospital Praque, 128 08 Prague 2, Czech Republic; (V.F.); (V.K.)
- Institute for Medical Humanities, First Faculty of Medicine, Charles University Praque, 128 08 Praque 2, Czech Republic
| | - Gerard Loeber
- International Society for Neonatal Screening, 3721CK Bilthoven, The Netherlands;
| | - Viktor Kožich
- Department of Pediatrics and Inherited Metabolic Disorders, Charles University First Faculty of Medicine and General University Hospital Praque, 128 08 Prague 2, Czech Republic; (V.F.); (V.K.)
| | - Lidewij Henneman
- Department of Clinical Genetics, Section Community Genetics, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, 1007 MB Amsterdam, The Netherlands; (A.IJ.); (T.v.D.); (L.H.)
| | - Marleen Jansen
- Department of Clinical Genetics, Section Community Genetics, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, 1007 MB Amsterdam, The Netherlands; (A.IJ.); (T.v.D.); (L.H.)
- Centre for Health Protection, National Institue for Public Health and the Environment (RIVM), 3720 BA Bilthoven, The Netherlands
- Correspondence: ; Tel.: +31-20-444-3869
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González-Irazabal Y, Hernandez de Abajo G, Martínez-Morillo E. Identifying and overcoming barriers to harmonize newborn screening programs through consensus strategies. Crit Rev Clin Lab Sci 2020; 58:29-48. [PMID: 32692303 DOI: 10.1080/10408363.2020.1781778] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The benefits of newborn screening (NBS) programs have been widely demonstrated after more than 50 years since first established. NBS enables the detection of the disease before the child shows clinical symptoms, allowing clinicians to act early and facilitating appropriate interventions to prevent or improve adverse outcomes. Delay or lack of medical intervention in these infants may lead to developmental delay, severe disability, or premature death. NBS programs have grown exponentially both in the number of diseases screened and in complexity, creating controversy. New technological advances, as well as the emergence of new therapies that require early disease detection, have allowed for the inclusion of new diseases in NBS screening programs. However, different countries and even different regions have in turn adopted very diverse strategies and diagnostic algorithms when it comes to NBS. There are many factors responsible for these differences, such as the health care system, available funds, local politics, professional groups, and others that depend on the position taken by policymakers. These differences in NBS have led to discrepancies in detection opportunities between countries or regions, which has led to many varied attempts to harmonize NBS programs but not all have been equally satisfactory. Some countries have achieved good results, but always within their borders. Therefore, there are still many differences between NBS programs at the international level that must be overcome. These advances have also brought considerable uncertainty regarding ethical aspects and balance between benefits and harms. For this reason, and so that the situation of disparity in the global NBS programs can be minimized, health authorities must work to develop uniform criteria for decision-making and to take a further step toward harmonization. To do so, it is necessary to identify the crucial factors that lead to the adoption of different NBS programs worldwide, in order to analyze their influence and find ways to overcome them.
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Abstract
The goal of screening programs for inborn errors of metabolism (IEM) is early detection and timely intervention to significantly reduce morbidity, mortality and associated disabilities. Phenylketonuria exemplifies their success as neonates are identified at birth and then promptly treated allowing normal neurological development. Lysosomal diseases comprise about 50 IEM arising from a deficiency in a protein required for proper lysosomal function. Typically, these defects are in lysosomal enzymes with the concomitant accumulation of the enzyme's substrate as the cardinal feature. None of the lysosomal diseases are screened at birth in Australia and in the absence of a family history, traditional laboratory diagnosis of the majority, involves demonstrating a deficiency of the requisite enzyme. Diagnostic confusion can arise from interpretation of the degree of residual enzyme activity causative of disease and is impractical when the disorder is not due to an enzyme deficiency per se. Advances in mass spectrometry technologies has enabled simultaneous measurement of the enzymes' substrates and their metabolites which facilitates the efficiency of diagnosis. Employing urine chemistry as a reflection of multisystemic disease, individual lysosomal diseases can be identified by a characteristic substrate pattern complicit with the enzyme deficiency. Determination of lipids in plasma allows the diagnosis of a further class of lysosomal disorders, the sphingolipids. The ideal goal would be to measure biomarkers for each specific lysosomal disorder in the one mass spectrometry-based platform to achieve a diagnosis. Confirmation of the diagnosis is usually by identifying pathogenic variants in the underlying gene, and although molecular genetic technologies can provide the initial diagnosis, the biochemistry will remain important for interpreting molecular variants of uncertain significance.
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Dobrow MJ, Hagens V, Chafe R, Sullivan T, Rabeneck L. Consolidated principles for screening based on a systematic review and consensus process. CMAJ 2019; 190:E422-E429. [PMID: 29632037 DOI: 10.1503/cmaj.171154] [Citation(s) in RCA: 163] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND In 1968, Wilson and Jungner published 10 principles of screening that often represent the de facto starting point for screening decisions today; 50 years on, are these principles still the right ones? Our objectives were to review published work that presents principles for population-based screening decisions since Wilson and Jungner's seminal publication, and to conduct a Delphi consensus process to assess the review results. METHODS We conducted a systematic review and modified Delphi consensus process. We searched multiple databases for articles published in English in 1968 or later that were intended to guide population-based screening decisions, described development and modification of principles, and presented principles as a set or list. Identified sets were compared for basic characteristics (e.g., number, categorization), a citation analysis was conducted, and principles were iteratively synthesized and consolidated into categories to assess evolution. Participants in the consensus process assessed the level of agreement with the importance and interpretability of the consolidated screening principles. RESULTS We identified 41 sets and 367 unique principles. Each unique principle was coded to 12 consolidated decision principles that were further categorized as disease/condition, test/intervention or program/system principles. Program or system issues were the focus of 3 of Wilson and Jungner's 10 principles, but comprised almost half of all unique principles identified in the review. The 12 consolidated principles were assessed through 2 rounds of the consensus process, leading to specific refinements to improve their relevance and interpretability. No gaps or missing principles were identified. INTERPRETATION Wilson and Jungner's principles are remarkably enduring, but increasingly reflect a truncated version of contemporary thinking on screening that does not fully capture subsequent focus on program or system principles. Ultimately, this review and consensus process provides a comprehensive and iterative modernization of guidance to inform population-based screening decisions.
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Affiliation(s)
- Mark J Dobrow
- Institute of Health Policy, Management and Evaluation (Dobrow, Sullivan, Rabeneck), Dalla Lana School of Public Health, University of Toronto; Cancer Care Ontario (Hagens, Rabeneck), Toronto, Ont.; Memorial University of Newfoundland (Chafe), St. John's, NL; Department of Medicine (Rabeneck), University of Toronto, Toronto, Ont.
| | - Victoria Hagens
- Institute of Health Policy, Management and Evaluation (Dobrow, Sullivan, Rabeneck), Dalla Lana School of Public Health, University of Toronto; Cancer Care Ontario (Hagens, Rabeneck), Toronto, Ont.; Memorial University of Newfoundland (Chafe), St. John's, NL; Department of Medicine (Rabeneck), University of Toronto, Toronto, Ont
| | - Roger Chafe
- Institute of Health Policy, Management and Evaluation (Dobrow, Sullivan, Rabeneck), Dalla Lana School of Public Health, University of Toronto; Cancer Care Ontario (Hagens, Rabeneck), Toronto, Ont.; Memorial University of Newfoundland (Chafe), St. John's, NL; Department of Medicine (Rabeneck), University of Toronto, Toronto, Ont
| | - Terrence Sullivan
- Institute of Health Policy, Management and Evaluation (Dobrow, Sullivan, Rabeneck), Dalla Lana School of Public Health, University of Toronto; Cancer Care Ontario (Hagens, Rabeneck), Toronto, Ont.; Memorial University of Newfoundland (Chafe), St. John's, NL; Department of Medicine (Rabeneck), University of Toronto, Toronto, Ont
| | - Linda Rabeneck
- Institute of Health Policy, Management and Evaluation (Dobrow, Sullivan, Rabeneck), Dalla Lana School of Public Health, University of Toronto; Cancer Care Ontario (Hagens, Rabeneck), Toronto, Ont.; Memorial University of Newfoundland (Chafe), St. John's, NL; Department of Medicine (Rabeneck), University of Toronto, Toronto, Ont
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Taylor-Phillips S, Stinton C, Ferrante di Ruffano L, Seedat F, Clarke A, Deeks JJ. Association between use of systematic reviews and national policy recommendations on screening newborn babies for rare diseases: systematic review and meta-analysis. BMJ 2018; 361:k1612. [PMID: 29743278 PMCID: PMC5941220 DOI: 10.1136/bmj.k1612] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/16/2018] [Indexed: 12/03/2022]
Abstract
OBJECTIVE To understand whether international differences in recommendations of whether to screen for rare diseases using the newborn blood spot test might in part be explained by use of systematic review methods. DESIGN Systematic review and meta-analysis. DATA SOURCES Website searches of 26 national screening organisations. ELIGIBILITY CRITERIA FOR STUDY SELECTION Journal articles, papers, legal documents, presentations, conference abstracts, or reports relating to a national recommendation on whether to screen for any condition using the newborn blood spot test, with no restrictions on date or language. DATA EXTRACTION Two reviewers independently assessed whether the recommendation for or against screening included systematic reviews, and data on test accuracy, benefits of early detection, and potential harms of overdiagnosis. ANALYSIS The odds of recommending screening according to the use of systematic review methods was estimated across conditions using meta-analysis. RESULTS 93 reports were included that assessed 104 conditions across 14 countries, totalling 276 recommendations (units of analysis). Screening was favoured in 159 (58%) recommendations, not favoured in 98 (36%), and not recommended either way in 19 (7%). Only 60 (22%) of the recommendations included a systematic review. Use of a systematic review was associated with a reduced probability of screening being recommended (23/60 (38%) v 136/216 (63%), odds ratio 0.17, 95% confidence interval 0.07 to 0.43). Of the recommendations, evidence for test accuracy, benefits of early detection, and overdiagnosis was not considered in 115 (42%), 83 (30%), and 211 (76%), respectively. CONCLUSIONS Using systematic review methods is associated with a reduced probability of screening being recommended. Many national policy reviews of screening for rare conditions using the newborn blood spot test do not assess the evidence on the key benefits and harms of screening.
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Affiliation(s)
| | - Chris Stinton
- Warwick Medical School, The University of Warwick, Coventry CV4 7AL, UK
| | - Lavinia Ferrante di Ruffano
- Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK
| | - Farah Seedat
- Warwick Medical School, The University of Warwick, Coventry CV4 7AL, UK
| | - Aileen Clarke
- Warwick Medical School, The University of Warwick, Coventry CV4 7AL, UK
| | - Jonathan J Deeks
- Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK
- National Institute for Health Research (NIHR) Birmingham Biomedical Research Centre, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK
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Abstract
Started in 1963 by Robert Guthrie, newborn screening (NBS) is considered to be one of the great public health achievements. Its original goal was to screen newborns for conditions that could benefit from presymptomatic treatment, thereby reducing associated morbidity and mortality. With advances in technology, the number of disorders included in NBS programs increased. Pompe disease is a good candidate for NBS. Because decisions regarding which diseases should be included in NBS panels are made regionally and locally, programs and efforts for NBS for Pompe disease have been inconsistent both in the United States and globally. In this article, published in the "Newborn Screening, Diagnosis, and Treatment for Pompe Disease" guidance supplement, the Pompe Disease Newborn Screening Working Group, an international group of experts in both NBS and Pompe disease, review the methods used for NBS for Pompe disease and summarize results of current and ongoing NBS programs in the United States and other countries. Challenges and potential drawbacks associated with NBS also are discussed.
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Affiliation(s)
- Olaf A Bodamer
- Division of Genetics and Genomics, Boston Children's Hospital, Boston, Massachusetts;
| | - C Ronald Scott
- Division of Molecular Medicine, Department of Pediatrics, University of Washington, Seattle, Washington; and
| | - Roberto Giugliani
- Medical Genetics Service, Hospital de Clinicas de Porto Alegre (HCPA) and Department of Genetics, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
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Kishnani PS, Hwu WL. Introduction to the Newborn Screening, Diagnosis, and Treatment for Pompe Disease Guidance Supplement. Pediatrics 2017; 140:S1-S3. [PMID: 29162672 DOI: 10.1542/peds.2016-0280b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/08/2017] [Indexed: 12/28/2022] Open
Affiliation(s)
- Priya S Kishnani
- Division of Medical Genetics, Department of Pediatrics, Duke University, Durham, North Carolina; and
| | - Wuh-Liang Hwu
- Department of Pediatrics and Medical Genetics, National Taiwan University Hospital, and National Taiwan University College of Medicine, Taipei, Taiwan
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10
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Jansen ME, Lister KJ, van Kranen HJ, Cornel MC. Policy Making in Newborn Screening Needs a Structured and Transparent Approach. Front Public Health 2017; 5:53. [PMID: 28377917 PMCID: PMC5359248 DOI: 10.3389/fpubh.2017.00053] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 03/01/2017] [Indexed: 01/21/2023] Open
Abstract
PURPOSE Newborn bloodspot screening (NBS) programs have expanded significantly in the past years and are expected to expand further with the emergence of genetic technologies. Historically, NBS expansion has often occurred following ad hoc consideration of conditions, instead of a structured and transparent approach. In this review, we explore issues pertinent to NBS policy making, through the lens of the policy cycle: (a) agenda setting, (b) policy advice, (c) policy decision, (d) implementation, and (e) evaluation. METHODS A literature search was conducted to gather information on the elements specific to NBS and its policy making process. RESULTS The review highlighted two approaches to nominate a condition: a structured approach through horizon scanning; and an ad hoc process. For assessment of a condition, there was unanimous support for a robust process based on criteria. While the need to assess harms and benefits was a repeated theme in the articles, there is no agreed-upon threshold for benefit in decision-making. Furthermore, the literature was consistent in its recommendation for an overarching, independent, multidisciplinary group providing recommendations to government. An implementation plan focusing on the different levels on which NBS operates and the information needed on each level is essential for successful implementation. Continuously monitoring, and improving a program is vital, particularly following the implementation of screening for a new condition. An advisory committee could advise on implementation, development, review, modification, and cessation of (parts of) NBS. CONCLUSION The results highlight that there are a wave of issues facing NBS programs that policy makers must take into account when developing policy processes. What conditions to screen, and the technologies used in NBS, are both up for debate.
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Affiliation(s)
- Marleen E Jansen
- Section Community Genetics, Department of Clinical Genetics, Amsterdam Public Health Research Institute, Amsterdam, Netherlands; Institute for Public Health Genomics, School for Oncology and Developmental Biology (GROW), Faculty of Health, Medicine, and Life Sciences, Maastricht University, Maastricht, Netherlands
| | - Karla J Lister
- Screening Policy Section, Office of Population Health Genomics, Department of Health, Government of Western Australia , Perth, WA , Australia
| | - Henk J van Kranen
- Institute for Public Health Genomics, School for Oncology and Developmental Biology (GROW), Faculty of Health, Medicine, and Life Sciences, Maastricht University, Maastricht, Netherlands; Center for Nutrition, Prevention and Health Services, National Institute for Public Health and the Environment, Bilthoven, Netherlands
| | - Martina C Cornel
- Section Community Genetics, Department of Clinical Genetics, Amsterdam Public Health Research Institute , Amsterdam , Netherlands
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Etchegary H, Nicholls SG, Tessier L, Simmonds C, Potter BK, Brehaut JC, Pullman D, Hayeems R, Zelenietz S, Lamoureux M, Milburn J, Turner L, Chakraborty P, Wilson B. Consent for newborn screening: parents' and health-care professionals' experiences of consent in practice. Eur J Hum Genet 2016; 24:1530-1534. [PMID: 27302842 PMCID: PMC5110054 DOI: 10.1038/ejhg.2016.55] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/21/2016] [Accepted: 05/05/2016] [Indexed: 12/26/2022] Open
Abstract
Consent processes for newborn bloodspot screening (NBS) are variable, with a lack of descriptive research that depicts how the offer of NBS is made to parents. We explored the experience, in practice, of consent for NBS. Semistructured interviews in two Canadian provinces were held with: (1) parents of children offered NBS (n=32); and (2) health-care professionals involved in the NBS process (n=19). Data on recollections of NBS, including consent processes, were utilized to identify emerging themes using the method of constant comparison. Three themes were relevant to NBS consent: (1) The 'offer' of NBS; (2) content and timing of information provision; and (3) the importance of parental experiences for consent decisions. Recollections of consent for NBS were similar between jurisdictions. Excepting midwives and their patients, NBS was viewed as a routine part of giving birth, with little evidence of an informed consent process. Although most parents were satisfied, all respondents suggested information about NBS be provided long before the birth. Accounts of parents who declined screening highlight the influence of parental experiences with the heel prick process in screening decisions. Findings further our understanding of consent in practice and highlight areas for improvement in parent-provider interactions.
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Affiliation(s)
- Holly Etchegary
- Clinical Epidemiology Unit, Faculty of Medicine, Memorial University, St John's, Newfoundland and Labrador, Canada
| | - Stuart G Nicholls
- School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Children's Hospital of Eastern Ontario (CHEO) Research Institute, Ottawa, Ontario, Canada
| | - Laure Tessier
- Newborn Screening Ontario, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Charlene Simmonds
- Health Research Unit, Faculty of Medicine, Memorial University, St John's, Newfoundland and Labrador, Canada
| | - Beth K Potter
- School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | | | - Daryl Pullman
- Community Health and Humanities, Faculty of Medicine, Memorial University, St John's, Newfoundland and Labrador, Canada
| | - Robyn Hayeems
- Institute of Health Policy Management and Evaluation, University of Toronto; Program in Child Health Evaluative Sciences, Hospital for Sick Children Research Institute, Toronto, ON, Canada
| | - Sari Zelenietz
- Newborn Screening Ontario, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Monica Lamoureux
- Newborn Screening Ontario, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Jennifer Milburn
- Newborn Screening Ontario, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Lesley Turner
- Provincial Medical Genetics Program, Eastern Health, St John's, Newfoundland and Labrador, Canada
| | - Pranesh Chakraborty
- Newborn Screening Ontario, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
- Department of Pediatrics, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Brenda Wilson
- School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Ontario, Canada
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12
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Jansen ME, Metternick-Jones SC, Lister KJ. International differences in the evaluation of conditions for newborn bloodspot screening: a review of scientific literature and policy documents. Eur J Hum Genet 2016; 25:10-16. [PMID: 27848945 PMCID: PMC5159762 DOI: 10.1038/ejhg.2016.126] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 08/16/2016] [Accepted: 08/24/2016] [Indexed: 12/11/2022] Open
Abstract
Despite international adoption of newborn bloodspot screening (DBS), no two countries' screening programs are the same. This article aims to understand what factors influence DBS decision-making criteria and how conditions are assessed against them. In doing so, it offers unique insights into the international landscape of DBS. A systematic review on DBS criteria in scientific literature was first undertaken. Through this, five topics were identified for consideration when analyzing DBS decision-making. Using these five topics as a template, a side-by-side comparison was conducted on DBS in policy documents of eight countries. Programs are using different approaches to explore the same policy issues, including: the beneficiary of DBS, definition of criteria, the way conditions are assessed, level of evidence required, and recommendations after assessment. These differences have the potential to result in increased disparity across DBS internationally. Ultimately, governments need to decide on their role and develop an approach to DBS decision-making in line with this role. The analyses presented in this article highlight that despite programs' commonalities, no one 'DBS decision-making solution' exists. Understanding the different approaches to decision-making within the literature and policy settings, provides an objective starting point for structured decision-making approaches for DBS programs.
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Affiliation(s)
- Marleen E Jansen
- Department of Clinical Genetics, Section Community Genetics and EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands.
- Department of Genetics and Cell Biology, Institute for Public Health Genomics, School for Oncology and Developmental Biology (GROW), Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands.
| | - Selina C Metternick-Jones
- Department of Health, Screening Policy Section, Office of Population Health Genomics, Government of Western Australia, Perth, Australia
| | - Karla J Lister
- Department of Health, Screening Policy Section, Office of Population Health Genomics, Government of Western Australia, Perth, Australia
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Šmon A, Grošelj U, Žerjav Tanšek M, Biček A, Oblak A, Zupančič M, Kržišnik C, Repič Lampr Et B, Murko S, Hojker S, Battelino T. Newborn Screening in Slovenia. Zdr Varst 2015; 54:86-90. [PMID: 27646913 PMCID: PMC4820172 DOI: 10.1515/sjph-2015-0013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 01/13/2015] [Indexed: 12/30/2022] Open
Abstract
Introduction Newborn screening in whole Slovenia started in 1979 with screening for phenylketonuria (PKU). Congenital hypothyroidism (CH) was added into the programme in 1981. The aim of this study was to analyse the data of neonatal screening in Slovenia from 1993 to 2012 for PKU, and from 1991 to 2012 for CH. Methods Blood samples were collected from the heels of newborns between the third and the fifth day after birth. Fluorometric method was used for screening for PKU, CH screening was done by dissociation-enhanced lanthanide fluorescent immunoassay (DELFIA). Results From 1993 to 2012, from 385,831 newborns 57 were identified with PKU. 184 newborns out of 427,396 screened from 1991 to 2012, were confirmed for CH. Incidences of PKU and CH in the periods stated are 1:6769 and 1:2323, respectively. Conclusions Successful implementation of newborn screening for PKU and CH has helped in preventing serious disabilities of the affected children. Adding screening for new metabolic diseases in the future would be beneficial.
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Affiliation(s)
- Andraž Šmon
- University Medical Centre Ljubljana, University Children's Hospital, Department of Endocrinology, Diabetes and Metabolic Diseases, Bohoriceva 20, 1000 Ljubljana, Slovenia
| | - Urh Grošelj
- University Medical Centre Ljubljana, University Children's Hospital, Department of Endocrinology, Diabetes and Metabolic Diseases, Bohoriceva 20, 1000 Ljubljana, Slovenia
| | - Mojca Žerjav Tanšek
- University Medical Centre Ljubljana, University Children's Hospital, Department of Endocrinology, Diabetes and Metabolic Diseases, Bohoriceva 20, 1000 Ljubljana, Slovenia
| | - Ajda Biček
- University Medical Centre Ljubljana, Department of Nuclear Medicine, Zaloska cesta 7, 1000 Ljubljana, Slovenia
| | - Adrijana Oblak
- University Medical Centre Ljubljana, Department of Nuclear Medicine, Zaloska cesta 7, 1000 Ljubljana, Slovenia
| | - Mirjana Zupančič
- University Medical Centre Ljubljana, University Children's Hospital, Unit for Special Laboratory Diagnostics, Vrazov trg 1, 1000 Ljubljana, Slovenia
| | - Ciril Kržišnik
- University of Ljubljana, Faculty of Medicine, Vrazov trg 2, 1000 Ljubljana, Slovenia
| | - Barbka Repič Lampr Et
- University Medical Centre Ljubljana, University Children's Hospital, Unit for Special Laboratory Diagnostics, Vrazov trg 1, 1000 Ljubljana, Slovenia
| | - Simona Murko
- University Medical Centre Ljubljana, University Children's Hospital, Unit for Special Laboratory Diagnostics, Vrazov trg 1, 1000 Ljubljana, Slovenia
| | - Sergej Hojker
- University Medical Centre Ljubljana, Department of Nuclear Medicine, Zaloska cesta 7, 1000 Ljubljana, Slovenia
| | - Tadej Battelino
- University Medical Centre Ljubljana, University Children's Hospital, Department of Endocrinology, Diabetes and Metabolic Diseases, Bohoriceva 20, 1000 Ljubljana, Slovenia; University of Ljubljana, Faculty of Medicine, Vrazov trg 2, 1000 Ljubljana, Slovenia
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Abstract
Newborn screening has evolved fast following recent advances in diagnosis and treatment of disease, particularly the development of multiplex testing and applications of molecular testing. Formal evidence of benefit from newborn screening has been largely lacking, due to the rarity of individual disorders. There are wide international differences in the choice of disorders screened, and ethical issues in both screening and not screening are apparent. More evidence is needed about benefit and harm of screening for specific disorders and renewed discussion about the basic aims of newborn screening must be undertaken.
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Affiliation(s)
- Bridget Wilcken
- The Children's Hospital at Westmead, The University of Sydney, Sydney, New South Wales, Australia
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15
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Nicholls SG, Wilson BJ, Etchegary H, Brehaut JC, Potter BK, Hayeems R, Chakraborty P, Milburn J, Pullman D, Turner L, Carroll JC. Benefits and burdens of newborn screening: public understanding and decision-making. Per Med 2014; 11:593-607. [PMID: 29758802 DOI: 10.2217/pme.14.46] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In this article we review the literature regarding the public understanding of the potential benefits and burdens of expanded newborn bloodspot screening. We draw attention to broadened notions of benefit that go beyond early identification of asymptomatic individuals and interventions to reduce morbidity or mortality, and include benefits gained by families through knowledge that may facilitate life choices, as well as gains generated by avoiding diagnostic delays. We also reflect on burdens such as increasing false-positive results and parental anxiety, together with risks of overdiagnosis when the natural history of a condition is poorly understood. We conclude that expanded notions of benefit and burden bring with them implications for parental consent and confidentiality and the secondary use of bloodspots.
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Affiliation(s)
- Stuart G Nicholls
- Department of Epidemiology & Community Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Brenda J Wilson
- Department of Epidemiology & Community Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Holly Etchegary
- Clinical Epidemiology, Memorial University, St John's, Newfoundland and Labrador, Canada
| | - Jamie C Brehaut
- Department of Epidemiology & Community Medicine, University of Ottawa, Ottawa, Ontario, Canada.,Centre for Practice Changing Research, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Beth K Potter
- Department of Epidemiology & Community Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Robin Hayeems
- Hospital for Sick Children Research Institute, Peter Gilgan Centre for Research and Learning, Toronto, Ontario, Canada.,Institute of Health Policy Management & Evaluation, University of Toronto, Canada
| | - Pranesh Chakraborty
- Newborn Screening Ontario, Children's Hospital of Eastern Ontario (CHEO), Ottawa, Ontario, Canada
| | - Jennifer Milburn
- Better Outcomes Registry & Network (BORN), Children's Hospital of Eastern Ontario (CHEO), Ottawa, Ontario, Canada
| | - Daryl Pullman
- Faculty of Medicine, Memorial University, St Johns, Newfoundland & Labrador, Canada
| | - Lesley Turner
- Eastern Health, St John's, Newfoundland & Labrador, Canada
| | - June C Carroll
- Department of Family & Community Medicine, Mount Sinai Hospital, University of Toronto, Toronto, Canada
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16
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Fischer KE, Rogowski WH. Funding decisions for newborn screening: a comparative review of 22 decision processes in Europe. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2014; 11:5403-30. [PMID: 24852389 PMCID: PMC4053875 DOI: 10.3390/ijerph110505403] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 04/29/2014] [Accepted: 05/09/2014] [Indexed: 11/30/2022]
Abstract
Decision-makers need to make choices to improve public health. Population-based newborn screening (NBS) is considered as one strategy to prevent adverse health outcomes and address rare disease patients' needs. The aim of this study was to describe key characteristics of decisions for funding new NBS programmes in Europe. We analysed past decisions using a conceptual framework. It incorporates indicators that capture the steps of decision processes by health care payers. Based on an internet survey, we compared 22 decisions for which answers among two respondents were validated for each observation. The frequencies of indicators were calculated to elicit key characteristics. All decisions resulted in positive, mostly unrestricted funding. Stakeholder participation was diverse focusing on information provision or voting. Often, decisions were not fully transparent. Assessment of NBS technologies concentrated on expert opinion, literature review and rough cost estimates. Most important appraisal criteria were effectiveness (i.e., health gain from testing for the children being screened), disease severity and availability of treatments. Some common and diverging key characteristics were identified. Although no evidence of explicit healthcare rationing was found, processes may be improved in respect of transparency and scientific rigour of assessment.
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Affiliation(s)
| | - Wolf Henning Rogowski
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Health Economics and Health Care Management, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany.
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17
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Edwards RL, Griffiths P, Bunch J, Cooper HJ. Compound heterozygotes and beta-thalassemia: Top-down mass spectrometry for detection of hemoglobinopathies. Proteomics 2014; 14:1232-8. [DOI: 10.1002/pmic.201300316] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 10/30/2013] [Accepted: 12/10/2013] [Indexed: 11/07/2022]
Affiliation(s)
| | - Paul Griffiths
- Newborn Screening and Biochemical Genetics; Birmingham Children's Hospital NHS Trust; Birmingham UK
| | - Josephine Bunch
- School of Chemistry; University of Birmingham; Birmingham UK
| | - Helen J. Cooper
- School of Biosciences; University of Birmingham; Birmingham UK
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18
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Allen C, Sénécal K, Avard D. Defining the Scope of Public Engagement: Examining the "Right Not to Know" in Public Health Genomics. THE JOURNAL OF LAW, MEDICINE & ETHICS : A JOURNAL OF THE AMERICAN SOCIETY OF LAW, MEDICINE & ETHICS 2014; 42:11-18. [PMID: 26767472 DOI: 10.1111/jlme.12114] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this article, we explore the concept of a "right not to know" on a population rather than individual level. We argue that a population level "right not to know" is a useful concept for helping to define the appropriate boundaries of public engagement initiatives in the emerging public health genomics context.
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Affiliation(s)
- Clarissa Allen
- Research Assistant at the Center of Genomics and Policy, located within the McGill University/Genome Quebec Innovation Center in Montreal, Quebec
| | - Karine Sénécal
- Academic Associate at the Centre of Genomics and Policy in the Faculty of Medicine at McGill University in Montreal, Québec
| | - Denise Avard
- Research Director for the Centre of Genomics and Policy and an Associate Professor in the Faculty of Medicine, Department of Human Genetics at McGill University, Montreal, Quebec
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19
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Affiliation(s)
- Bridget Wilcken
- The Children's Hospital at Westmead, Westmead, New South Wales 2145, Australia.
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20
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Kapoor S, Gupta N, Kabra M. National newborn screening program — Still a hype or a hope now? Indian Pediatr 2013; 50:639-43. [DOI: 10.1007/s13312-013-0187-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Forman J, Coyle F, Levy-Fisch J, Roberts P, Terry S, Legge M. Screening criteria: the need to deal with new developments and ethical issues in newborn metabolic screening. J Community Genet 2012; 4:59-67. [PMID: 23055099 PMCID: PMC3537969 DOI: 10.1007/s12687-012-0118-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Accepted: 09/12/2012] [Indexed: 11/30/2022] Open
Abstract
Newborn metabolic screening is the most widespread application of screening technology and provides the most comprehensive application of genetics in health services, where the Guthrie blood spot cards allow screening for metabolic diseases in close to 100 % of all newborn babies. Despite over 40 years of use and significant benefits to well in excess of 100,000 children worldwide, there is remarkably little consensus in what conditions should be screened for and response to new advances in medicine relating to programme expansion. In this article, the international criteria for newborn metabolic screening are considered, and we propose that these criteria are poorly developed in relation to the baby, its family and society as a whole. Additionally, the ethical issues that should inform the application of screening criteria are often not developed to a level where a consensus might easily be achieved. We also consider that when family interests are factored in to the decision-making process, they have a significant influence in determining the list of diseases in the panel, with countries or states incorporating family and societal values being the most responsive. Based on our analysis, we propose that decision criteria for metabolic screening in the newborn period should be adapted to specifically include parent and family interests, community values, patients’ rights, duties of government and healthcare providers, and ethical arguments for action in the face of uncertainty.
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Affiliation(s)
- John Forman
- New Zealand Organisation for Rare Disorders (NZORD), PO Box 38-538, Wellington Mail Centre, 5045, Wellington, New Zealand,
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22
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Scala I, Parenti G, Andria G. Universal screening for inherited metabolic diseases in the neonate (and the fetus). J Matern Fetal Neonatal Med 2012; 25:4-6. [DOI: 10.3109/14767058.2012.716983] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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23
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Burgard P, Rupp K, Lindner M, Haege G, Rigter T, Weinreich SS, Loeber JG, Taruscio D, Vittozzi L, Cornel MC, Hoffmann GF. Newborn screening programmes in Europe; arguments and efforts regarding harmonization. Part 2. From screening laboratory results to treatment, follow-up and quality assurance. J Inherit Metab Dis 2012; 35:613-25. [PMID: 22544437 DOI: 10.1007/s10545-012-9484-z] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Revised: 03/13/2012] [Accepted: 03/28/2012] [Indexed: 11/30/2022]
Abstract
In a survey conducted in 2010/2011 data from the 28 EU member states, four EU candidate states (Croatia, FYROM, Iceland, Turkey), three potential EU candidate states (Bosnia Herzegovina, Montenegro, Serbia), and two EFTA states (Norway and Switzerland) were collected. The status and function of newborn screening (NBS) programmes were investigated from the information to prospective parents and the public via confirmation of a positive screening result up to decisions on treatment. This article summarises the results from screening laboratory findings to start of treatment. In addition we asked about the existence of feedback loops reporting the conclusions of confirmation of screening results to the screening laboratory and communication of long-term outcome to diagnostic units and possibly existing central registries. Parallel to the description of actual practices of where, how and by whom the different steps of the programmes are executed, we also asked for the existence of guidelines or directives regulating the screening programmes, material to support information of parents about diagnoses and treatment and training facilities for professionals involved in the programmes. This survey gives a first comprehensive overview of the steps following a positive screening result in European NBS programmes. The 37 data sets reveal substantial variation of national screening panels, but also a lot of similarities. Analysis across all countries revealed that actual practice is often organised but not regulated by guidelines. Material to inform patients is available more often for explaining treatment (69 %) than explaining the necessity of confirmatory diagnostics (41 %). Training of professionals is rarely regulated by a guideline (2 %), but is offered for paediatricians (40 %) and dieticians (29 %) and only rarely for other professions (e.g. geneticists, clinical nurse specialists, psychologists). Registry-based evaluation of long-term outcome is as yet almost nonexistent (3 %).
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Affiliation(s)
- Peter Burgard
- Department of Paediatrics, University Hospital - Heidelberg (DE), Im Neuenheimer Feld 430, 69120, Heidelberg, Germany.
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Abstract
This paper reviews the evidence of benefit resulting from newborn screening in Australia as well as for some of those disorders not yet included in the Australian panels, and discusses briefly disorders under active consideration for inclusion in the screening panels.There is solid evidence of benefit from newborn screening for phenylketonuria, congenital hypothyroidism, cystic fibrosis, and overall for the disorders included in tandem mass spectrometry screening. There is also some evidence of benefit for several disorders not screened for in Australia, including congenital adrenal hyperplasia. Harms resulting from screening include anxiety related to false positive results; adverse effects of unwarranted treatment for mild variants; unwanted genetic information; and the costs (opportunity costs) of screening. For well-run programs these harms are relatively small.Screening could become more effective with the development of good systems for rational consideration of disorders to be included, with the extended use of second tier testing to reduce the false positive rate, and with research on the most effective way to deal with mild variants. The most important aspect of increasing effectiveness is the full integration of the screening program, diagnostic laboratories, and the clinical service. This is already in place in Australasia.
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25
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Abstract
The advent of tandem mass spectrometry (MS/MS) around 10 years ago allowed to enlarge consistently the spectrum of metabolic diseases that might be easily and quickly detected. MS/MS was applied to newborn screening in many developed countries, with a wide use, to detect as many as 55 abnormal biochemical conditions (USA), or a restricted one detecting only few diseases (Germany, UK, and Switzerland). Many factors were probably contributing to these very different health organization policies. Although neonatal screening is widely considered extremely useful and efficacious to improve prognosis of many metabolic disorders, the statistically significant demonstration of benefit is quite hard to reach for reasons mainly incidental to the characteristics of these disorders. The expanded newborn screening, in its wide application, includes at present severe diseases presenting in the first days of life, diseases for which treatment is not available, conditions with uncertain significance which are probably not diseases, detection of metabolic disturbances of the mother and all the mildest forms of organic acidurias, urea cycle disorders, fatty acid beta-oxidation defects that may have the possibility to remain asymptomatic for the whole life or may have an acute life-threatening onset of the disease many years later. Which could be the better approach to newborn screening is not clear at present, and probably, it will not be the same for each country. Results of regional screening programs need to be carefully collected and analyzed in future years, with the aim to optimize screening practice in the different countries. Efforts should also be addressed to improve screening programs in the developing countries.
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Affiliation(s)
- Rossella Parini
- Rare Metabolic Diseases Unit, Pediatric Clinic, San Gerardo Hospital, University Milano Bicocca, Monza, Italy.
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26
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Affiliation(s)
- Janice Fletcher
- Genetics and Molecular Pathology, SA Pathology, Women's and Children's Hospital, North Adelaide, SA 5006, Australia.
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27
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García-Jiménez MC, Baldellou A, García-Silva MT, Dalmau-Serra J, García-Cazorla A, Gómez-López L, Giner CP, Luengo OA, Peña Quintana L, Couce ML, Martínez-Pardo M, Lambruschini N. [Epidemiological study of the metabolic diseases with homocystinuria in Spain]. An Pediatr (Barc) 2011; 76:133-9. [PMID: 22047794 DOI: 10.1016/j.anpedi.2011.08.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Revised: 01/28/2011] [Accepted: 08/24/2011] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES To determine the prevalence of homocystinuria in Spain and to establish the measures and mechanisms to ensure its prevention, diagnosis and treatment. MATERIAL AND METHODS A national cross-sectional survey was conducted by means of a questionnaire sent to 35 hospitals in which children and adult patients are treated. RESULTS Using the questionnaires submitted by 25 physicians from 16 centres, 75 patients were identified: 41 transsulphuration defects (one deceased), 27 remethylation (six deaths) and 7 without a syndromic diagnosis. The age at diagnosis varied widely, and 18 cases had more than one sibling affected. The more severe clinical manifestations involved the patients with remethylation defects. There was a high percentage of cognitive impairment, followed by lens diseases. Almost half of the patients had neurological disorders. There was increased vascular involvement in CBS-deficient adults. The therapeutic options most used were, folic acid, hydroxycobalamin and betaine. CONCLUSIONS In view of these results and especially the small number of CBS deficiencies detected, we conclude that there is a need to introduce newborn screening for classical homocystinuria and ensure implementation of an appropriate diagnostic workup in all patients at risk.
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Affiliation(s)
- M C García-Jiménez
- Servicio Pediatría, Unidad de Metabolopatías, Hospital Universitario Miguel Servet, Instituto Aragonés de Ciencias de la Salud, Zaragoza, España.
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28
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Abstract
Genetic disorders are caused by abnormalities in genes and chromosomes and for the most part have implications for family members, affecting such matters as confidentiality and disclosure to third parties. Genetic testing can be not only diagnostic but also predictive, raising issues of the need for pre-test counselling, protection of children from unwanted testing, and most importantly, the imprecision of interpretation of future risk. The rise in availability of direct-to-consumer testing is a fresh cause for concern, as are the new possibilities in reproductive medicine. New technologies and the falling cost of whole genome sequencing ensure that ethics will be a prominent concern for clinical genetics.
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Affiliation(s)
- Bridget Wilcken
- Biochemical Genetics and Newborn Screening Departments, The Children's Hospital at Westmead, Sydney, New South Wales, Australia.
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29
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Wilcken B. Newborn screening: how are we travelling, and where should we be going? J Inherit Metab Dis 2011; 34:569-74. [PMID: 21499716 DOI: 10.1007/s10545-011-9326-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2011] [Revised: 01/01/2011] [Accepted: 03/25/2011] [Indexed: 10/18/2022]
Abstract
In general, newborn screening is now a highly successful enterprise. The introduction of tandem mass spectrometry in the mid-1990s changed the pace of screening, raising its profile and increasing its relevance to a wider range of health professionals. The clinical effectiveness is not in doubt for some conditions, but is lacking for others. Evaluation has major difficulties for the rarer disorders and has been sadly neglected. Partly because clinical effectiveness has not been enthusiastically addressed, but also because of undue caution on the part of regulators, who often seem to ignore available evidence, there are huge differences in the adoption of screening programmes in different jurisdictions. New treatments, especially mutation-specific treatments, and technological advances in diagnostic testing are being rapidly developed, and this will further change the face of newborn screening and probably magnify these differences. The challenges will be considerable, especially with the increasing availability of DNA testing at modest cost. It is likely that there will be pressure to change the aims of newborn screening to encompass "personalised medicine". We must all prepare in a thoughtful way for these future challenges.
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Affiliation(s)
- Bridget Wilcken
- The Children's Hospital at Westmead, Locked bag 4001, Westmead NSW 2145, Australia.
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Abstract
UNLABELLED The potential of newborn blood-spot screening is expanding rapidly with the development of new analytical techniques and treatment methods. At the same time, some existing programmes, particularly that for congenital hypothyroidism, are coming under scrutiny because of suspicion that they are being shaped by analytical performance rather than evidence of clinical need. Screening policy varies greatly from country to country. CONCLUSION Ethical and political considerations may sometimes override formal scientific decision models.
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Affiliation(s)
- Rodney J Pollitt
- Clinical Chemistry and Newborn Screening, The Children's Hospital, Sheffield, UK.
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Vilarinho L, Rocha H, Sousa C, Marcão A, Fonseca H, Bogas M, Osório RV. Four years of expanded newborn screening in Portugal with tandem mass spectrometry. J Inherit Metab Dis 2010; 33 Suppl 3:S133-8. [PMID: 20177789 DOI: 10.1007/s10545-010-9048-z] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Revised: 12/21/2009] [Accepted: 01/04/2010] [Indexed: 10/19/2022]
Abstract
INTRODUCTION The Portuguese Neonatal Screening Programme (PNSP) was started in 1979 for phenylketonuria (2,590,700 newborns screened; prevalence 1:11,031) and, shortly after, for congenital hypothyroidism (2,558,455 newborns screened; prevalence 1:3,174). In 2004, expanded neonatal screening was implemented in the National Laboratory. The programme is not mandatory and has 99.8% coverage of the country (including Madeira and the Azores islands). MATERIAL AND METHODS In the past 4 years, 316,243 neonates were screened with the use of tandem mass spectrometry (MS/MS) to test for selected amino acids and acylcarnitines. RESULTS During this time, 132 patients were identified with 24 different inherited metabolic diseases (classic forms and variants). To date, the global frequency for all disorders integrated into the PNSP is estimated to be 1:1,380, with 1:2,396 for metabolic disorders. A total of 379 tests (0.12%) were classified as having false positive results, yielding an overall specificity of 99.9%. Despite the low frequency of several disorders, the positive predictive value of the overall MS/MS screening was found to be 26%, reflecting high diagnostic specificity of the method. Diagnostic sensitivity of extended screening for the different groups of disorders was 100%. Eight cases of maternal disorders [three glutaric aciduria type I, one carnitine transporter defect, and four 3-methylcrotonyl coenzyme A (CoA) carboxylase deficiency] were also detected through newborn screening. CONCLUSIONS Our data support the advantage of a centralised laboratory for screening an elevated number of samples and making decisions if relying on a clinical network able to provide fast treatment and a good outcome in the screened cases.
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Affiliation(s)
- Laura Vilarinho
- Newborn Screening Unit, Medical Genetics Center, National Institute of Health, INSA, Praca Pedro Nunes 88, 4099-028 Porto, Portugal,
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Dhondt JL. Expanded newborn screening: social and ethical issues. J Inherit Metab Dis 2010; 33:S211-7. [PMID: 20544288 DOI: 10.1007/s10545-010-9138-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2009] [Revised: 05/06/2010] [Accepted: 05/19/2010] [Indexed: 11/26/2022]
Abstract
Newborn screening and genetic testing have expanded rapidly in the last decade with the advent of multiplex (e.g., tandem mass spectrometry) and/or DNA technologies. However, screening panels include a large number of disorders, which may not meet all of the traditional screening criteria, established in late 1960s, and used for years to justify screening programs. After a period of expansion driven by technological advances, many reports have reconsidered the justification of expanded programs. Many factors have contributed to test-panel discrepancies between countries. The test-panel review methodology, the way health benefits are weighed against harms, and the socioeconomic-political environment all play a role. Expansion of screening also requires reconsideration of the infrastructure (ideally, in the context of national plans for rare diseases) to support testing, counselling, education, treatment, and follow-up. Consequently, economic aspects cannot be ignored and can be a limitation for expansion. New ethical questions have emerged: risks of discrimination or stigmatization, respect of the autonomy of persons to make decisions, parental anxiety resulting from a false positive test (especially when reporting to parents screening results for untreatable conditions identified as by-products of screening), etc. For disorders where there is not yet confirmation of benefit, it may be prudent to recommend pilot screening and to have a mechanism that can be used to adapt or even to stop a program.
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Affiliation(s)
- Jean-Louis Dhondt
- AFDPHE (French Association for Neonatal screening) and Laboratoire, Hôpital StPhilibert, 115 rue du grand but., Lomme cedex, France.
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Bombard Y, Miller FA, Hayeems RZ, Avard D, Knoppers BM. Reconsidering reproductive benefit through newborn screening: a systematic review of guidelines on preconception, prenatal and newborn screening. Eur J Hum Genet 2010; 18:751-60. [PMID: 20197792 PMCID: PMC2987364 DOI: 10.1038/ejhg.2010.13] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2009] [Revised: 12/14/2009] [Accepted: 12/29/2009] [Indexed: 11/09/2022] Open
Abstract
The expansion of newborn screening (NBS) has been accompanied by debate about what benefits should be achieved and the role of parental discretion in their pursuit. The opportunity to inform parents of reproductive risks is among the most valued additional benefits gained through NBS, and assumes prominence where the primary goal of identifying a treatable condition is not assured. We reviewed 53 unique guidelines addressing prenatal, preconception and newborn screening to examine: (1) how generating reproductive risk information is construed as a benefit of screening; and (2) what conditions support the realization of this benefit. Most preconception and prenatal guidelines - where generating reproductive risk information is described as a primary benefit - required that individuals be given a 'cascade of choices', ensuring that each step in the decision-making process was well informed, from deciding to pursue information about reproductive risks to deciding how to manage them. With the exception of three guidelines, NBS policy infrequently attended to the potential for reproductive benefits; further, most guidelines that acknowledged such benefits construed voluntarism narrowly, without attention to the choices attendant on receiving reproductive risk information. This review suggests that prenatal and preconception guidance identifies a coherent framework to support the pursuit of reproductive benefits through population screening programmes. Interestingly, attention to reproductive benefits is increasing among NBS guidance, yet reflection on how such benefits ought to be pursued remains limited. Traditional norms for NBS may require reconsideration where the remit of screening exceeds the primary goal of clinical benefits for infants.
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Affiliation(s)
- Yvonne Bombard
- Department of Health Policy, Management and Evaluation, Faculty of Medicine, University of Toronto, Toronto, ON, Canada.
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Lipstein EA, Vorono S, Browning MF, Green NS, Kemper AR, Knapp AA, Prosser LA, Perrin JM. Systematic evidence review of newborn screening and treatment of severe combined immunodeficiency. Pediatrics 2010; 125:e1226-35. [PMID: 20403930 DOI: 10.1542/peds.2009-1567] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
CONTEXT Severe combined immunodeficiency (SCID) is a group of disorders that leads to early childhood death as a result of severe infections. Recent research has addressed potential newborn screening for SCID. OBJECTIVE To conduct a systematic review of the evidence for newborn screening for SCID, including test characteristics, treatment efficacy, and cost-effectiveness. METHODS We searched Medline and the OVID In-Process & Other Non-Indexed Citations databases. We excluded articles if they were reviews, editorials or other opinion pieces, or case series of fewer than 4 patients or if they contained only adult subjects or nonhuman data. The remaining articles were systematically evaluated, and data were abstracted by 2 independent reviewers using standardized tools. For topics that lacked published evidence, we interviewed experts in the field. RESULTS The initial search resulted in 719 articles. Twenty-six met inclusion criteria. The results of several small studies suggested that screening for SCID is possible. Interviews revealed that 2 states have begun pilot screening programs. Evidence from large case series indicates that children receiving early stem-cell transplant for SCID have improved outcomes compared with children who were treated later. There is some inconclusive evidence regarding the need for donor-recipient matching and use of pretransplant chemotherapy. Few data on the cost-effectiveness of a SCID-screening program. CONCLUSIONS Evidence indicates the benefits of early treatment of SCID and the possibility of population-based newborn screening. Better information on optimal treatment and the costs of treatment and screening would benefit policy makers deciding among competing health care priorities.
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Affiliation(s)
- Ellen A Lipstein
- Center for Child and Adolescent Health Policy, Mass General Hospital for Children, Boston, Massachusetts, USA.
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Botler J, Camacho LAB, Cruz MMD, George P. Triagem neonatal: o desafio de uma cobertura universal e efetiva. CIENCIA & SAUDE COLETIVA 2010; 15:493-508. [DOI: 10.1590/s1413-81232010000200026] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2007] [Accepted: 12/17/2008] [Indexed: 11/22/2022] Open
Abstract
Programas de triagem neonatal (PTN) visam detectar portadores de várias doenças congênitas em recém-natos assintomáticos para uma intervenção efetiva. A coleta do teste é a primeira etapa do processo, devendo ser universal e precoce. Foi feita revisão sobre cobertura e momento de coleta em PTN de diversos países. A busca foi realizada em fontes diversas, de 1998 e 2008, com descritores "triagem neonatal" e "cobertura". A falta de desenho de estudo típico impediu o rigor necessário a uma revisão sistemática. Os dados foram agrupados em macrorregiões. O Canadá teve cobertura de 71% em 2006. A Europa teve cobertura de 69% em 2004, com dados de 38 países. Na Ásia e Pacífico, houve dados de dezenove países. No Oriente Médio e Norte da África, houve dados de quatro países. Na América Latina, a cobertura foi de 49% em 2005, com dados de catorze países. No Brasil, a cobertura foi de 80% em 2005. Sobre o momento da coleta, houve doze relatos. A transição epidemiológica contribuiu para o êxito dos PTN. Regiões mais desenvolvidas têm coberturas e momento de coleta mais adequados. No Brasil, a iniciativa do governo ampliou o acesso ao teste, mas coletas tardias indicam a necessidade de ações educativas e de organizações profissionais na definição de diretrizes específicas.
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Wieser B. Public accountability of newborn screening: collective knowing and deciding. Soc Sci Med 2010; 70:926-33. [PMID: 20061074 DOI: 10.1016/j.socscimed.2009.12.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2008] [Revised: 10/23/2009] [Accepted: 12/06/2009] [Indexed: 10/20/2022]
Abstract
A number of European countries have expanded their screening programme considerably during the last decade. Other countries have, however, not expanded their programme substantially. In this paper, I will compare UK and Austria, two countries representing two ends of the European spectrum. Focussing on the decision-making processes behind the design and expansion of newborn screening, I draw on Sheila Jasanoff's concept of "civic epistemology" (Jasanoff, S. (2005). Designs on Nature. Princeton and Oxford: Princeton University Press.) to investigate how the chosen countries provide information in order to give account for their respective screening policies. In particular, I analyse how key institutions in the UK and Austria use scientific expertise to explain and justify national screening programmes. For this purpose, I compare the material that is made available to the public, including policy documents, scientific studies, medical guidelines, legal regulation, advisory committee reports and public engagement exercises. It was found that the observed differences in the accountability practices are rooted in nationally traditional forms of policy making. However, whether or not these repertoires become indeed realised is a more contingent matter and is often triggered by events which evoke a response from the medical and policy-making actors.
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Affiliation(s)
- Bernhard Wieser
- Inter-University Research Centre for Technology, Work and Culture, Modern Biotechnology, Schloegelgasse 2, 8010 Graz, Austria.
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Pampols T. Inherited metabolic rare disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2010; 686:397-431. [PMID: 20824458 DOI: 10.1007/978-90-481-9485-8_23] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Inherited metabolic disorders (IMD) represent a vast, diverse and heterogeneous collection of around 700 genetic diseases. They are caused by rare mutations that affect the function of individual proteins and are a significant cause of morbidity and mortality, especially in childhood. Difficulties in ascertaining cases and the increasing number of new disorders have hampered efforts to accumulate exhaustive epidemiological data. Nonetheless, recent studies quote the cumulative incidence of IMDs at around 1 in 800 live births. To understand the epidemiology of IMD we will consider in this chapter two types of epidemiological approaches. The first type, or the Analytical approaches, includes the function of genetic factors in the natural history and clinical variability of the disease, as well as the role of epigenetic, stochastic and environmental factors. The second type, or the Descriptive approaches, comprises methods of case ascertainment through the diagnosis of symptomatic patients and population screening, mainly newborn and carrier screening, as well as measures of disease frequency and resources for disease control and prevention (primary, secondary and tertiary).
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Affiliation(s)
- Teresa Pampols
- Institut de Bioquímica Clínica, Servei de Bioquímica i Genètica Molecular, Hospital Clínic de Barcelona and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Barcelona, Spain.
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Pollitt RJ. Newborn blood spot screening: new opportunities, old problems. J Inherit Metab Dis 2009; 32:395-9. [PMID: 19412659 DOI: 10.1007/s10545-009-9962-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2009] [Revised: 03/06/2009] [Accepted: 03/18/2009] [Indexed: 10/20/2022]
Abstract
Newborn screening is evolving very rapidly. Geographical coverage is expanding, particularly for common disorders such as congenital hypothyroidism. New technologies, particularly tandem mass spectrometry and high throughput mutation analysis, have increased greatly the range of disorders which could be covered. However, these new possibilities are being exploiting at very different rates in different countries. This is due in part to the different ways in which generally-accepted screening criteria, based on the ten principles of Wilson and Jungner, are being interpreted and applied to policy. The appropriate management of some of the conditions newly-detectable by screening also remains controversial and there is a pressing need to align screening policy and clinical practice. Critical analysis and careful collection of data on an international basis are required to resolve these issues.
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Affiliation(s)
- R J Pollitt
- Newborn Screening Laboratory, The Children's Hospital, Sheffield S10 2TH, UK.
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40
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Wilcken B. The consequences of extended newborn screening programmes: do we know who needs treatment? J Inherit Metab Dis 2008; 31:173-7. [PMID: 18338234 DOI: 10.1007/s10545-008-0843-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2007] [Revised: 01/12/2008] [Accepted: 01/16/2008] [Indexed: 10/22/2022]
Abstract
The development of an evidence base for newborn screening is especially difficult because of the rarity of disorders now detectable. One consequence of expanded newborn screening is that physicians are being called upon to manage asymptomatic babies with persistent biochemical disturbances that indicate likely enzyme deficiencies. Some of these may be very mild. There is not always agreement as to who should be treated. Particular problems are seen with disorders that were previously thought very rare but are now found frequently by newborn screening. Some of these disorders appear benign or nearly so, and in the present state of knowledge should clearly not be included in routine newborn screening panels.
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Affiliation(s)
- B Wilcken
- Biochemical Genetics and Newborn Screening, The Children’s Hospital at Westmead, Westmead, NSW, Australia.
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Ross LF. Ethical and policy issues in pediatric genetics. AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS 2008; 148C:1-7. [PMID: 18200518 DOI: 10.1002/ajmg.c.30162] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This article presents an overview to a special issue on ethical and policy issues in pediatric genetics. It discusses challenges to current practices and policies with regard to newborn screening, biobanking initiatives, and predictive genetic testing of minors.
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