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Oktay V, Tüfekçioğlu O, Çicek Yılmaz D, Onrat E, Karabulut D, Çelik M, Serhat Balcıoğlu A, Murat Sucu M, Özdemir G, Kaya H, Kış M, Güven B, Bağdatoğlu O, Nihan Turhan Çağlar F, Çağdaş Yüksel U, Veysel Düzen İ, Barutçu A, Semih Şimşir Ö, Başarıcı İ, Parspur A, Dalgıç O, Özlem Arıcan Özlük F, Evlice M, Sağ S, Furkan Deniz M, Öcal A, Gazi E, Şen T, Özdabakoğlu O, Bayar Çakıcı N, Ozan Bakır E, Ülgen Kunak A, Çaylı G, Gül Taşdelen A, Akşit E, Uslu Çil Ş, Onay H. The Definition of Sarcomeric and Non-Sarcomeric Gene Mutations in Hypertrophic Cardiomyopathy Patients: A Multicenter Diagnostic Study Across Türkiye. Anatol J Cardiol 2023; 27:628-638. [PMID: 37466024 PMCID: PMC10621609 DOI: 10.14744/anatoljcardiol.2023.2805] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 05/29/2023] [Indexed: 11/04/2023] Open
Abstract
BACKGROUND Hypertrophic cardiomyopathy is a common genetic heart disease and up to 40%-60% of patients have mutations in cardiac sarcomere protein genes. This genetic diagnosis study aimed to detect pathogenic or likely pathogenic sarcomeric and non-sarcomeric gene mutations and to confirm a final molecular diagnosis in patients diagnosed with hypertrophic cardiomyopathy. METHODS A total of 392 patients with hypertrophic cardiomyopathy were included in this nationwide multicenter study conducted at 23 centers across Türkiye. All samples were analyzed with a 17-gene hypertrophic cardiomyopathy panel using next-generation sequencing technology. The gene panel includes ACTC1, DES, FLNC, GLA, LAMP2, MYBPC3, MYH7, MYL2, MYL3, PLN, PRKAG2, PTPN11, TNNC1, TNNI3, TNNT2, TPM1, and TTR genes. RESULTS The next-generation sequencing panel identified positive genetic variants (variants of unknown significance, likely pathogenic or pathogenic) in 12 genes for 121 of 392 samples, including sarcomeric gene mutations in 30.4% (119/392) of samples tested, galactosidase alpha variants in 0.5% (2/392) of samples and TTR variant in 0.025% (1/392). The likely pathogenic or pathogenic variants identified in 69 (57.0%) of 121 positive samples yielded a confirmed molecular diagnosis. The diagnostic yield was 17.1% (15.8% for hypertrophic cardiomyopathy variants) for hypertrophic cardiomyopathy and hypertrophic cardiomyopathy phenocopies and 0.5% for Fabry disease. CONCLUSIONS Our study showed that the distribution of genetic mutations, the prevalence of Fabry disease, and TTR amyloidosis in the Turkish population diagnosed with hypertrophic cardiomyopathy were similar to the other populations, but the percentage of sarcomeric gene mutations was slightly lower.
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Affiliation(s)
- Veysel Oktay
- Department of Cardiology, İstanbul University-Cerrahpaşa, Institute of Cardiology, İstanbul, Türkiye
| | | | - Dilek Çicek Yılmaz
- Department of Cardiology, Faculty of Medicine, Mersin University, Mersin, Türkiye
| | - Ersel Onrat
- Department of Cardiology, Faculty of Medicine, Afyonkarahisar University of Health Sciences, Afyonkarahisar, Türkiye
| | - Dilay Karabulut
- Clinic of Cardiology, Dr. Sadi Konuk Training and Research Hospital, İstanbul, Türkiye
| | - Murat Çelik
- Department of Cardiology, University of Health Sciences, Gülhane Faculty of Medicine, Ankara, Türkiye
| | - Akif Serhat Balcıoğlu
- Department of Cardiology, Faculty of Medicine, Kahramanmaraş Sütçü İmam University, Kahramanmaraş, Türkiye
| | - Mehmet Murat Sucu
- Department of Cardiology, Faculty of Medicine, Gaziantep University, Gaziantep, Türkiye
| | - Güllü Özdemir
- Clinic of Cardiology, Private Çekirge Heart and Arrhythmia Hospital, Bursa, Türkiye
| | - Hakkı Kaya
- Department of Cardiology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale, Türkiye
| | - Mehmet Kış
- Department of Cardiology, Faculty of Medicine, Dokuz Eylül University, İzmir, Türkiye
| | - Barış Güven
- Department of Cardiology, İstanbul University-Cerrahpaşa, Institute of Cardiology, İstanbul, Türkiye
| | | | | | - Uygar Çağdaş Yüksel
- Department of Cardiology, University of Health Sciences, Gülhane Faculty of Medicine, Ankara, Türkiye
| | - İrfan Veysel Düzen
- Department of Cardiology, Faculty of Medicine, Gaziantep University, Gaziantep, Türkiye
| | - Ahmet Barutçu
- Department of Cardiology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale, Türkiye
| | | | - İbrahim Başarıcı
- Department of Cardiology, Faculty of Medicine, Akdeniz University, Antalya, Türkiye
| | - Afşin Parspur
- Clinic of Cardiology, Kütahya University of Health Sciences, Evliya Çelebi Training and Research Hospital, Kütahya, Türkiye
| | - Onur Dalgıç
- Clinic of Cardiology, Private Kardiya Cardiology Center, İzmir, Türkiye
| | | | - Mert Evlice
- Clinics of Cardiology, Adana City Hospital, Adana, Türkiye
| | - Saim Sağ
- Clinic of Cardiology, Acıbadem Bursa Hospital, Bursa, Türkiye
| | - Muhammed Furkan Deniz
- Department of Cardiology, İstanbul University-Cerrahpaşa, Institute of Cardiology, İstanbul, Türkiye
| | - Arslan Öcal
- Department of Cardiology, University of Health Sciences, Gülhane Faculty of Medicine, Ankara, Türkiye
| | - Emine Gazi
- Department of Cardiology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale, Türkiye
| | - Taner Şen
- Clinic of Cardiology, Kütahya University of Health Sciences, Evliya Çelebi Training and Research Hospital, Kütahya, Türkiye
| | | | - Nermin Bayar Çakıcı
- Department of Cardiology, Antalya Training and Research Hospital, Antalya, Türkiye
| | - Eren Ozan Bakır
- Department of Cardiology, Faculty of Medicine, Celal Bayar University, Manisa, Türkiye
| | | | - Gizem Çaylı
- Medical Affairs Rare Diseases, Sanofi, İstanbul, Türkiye
| | - Aybike Gül Taşdelen
- Department of Cardiology, İstanbul University-Cerrahpaşa, Institute of Cardiology, İstanbul, Türkiye
| | - Ercan Akşit
- Department of Cardiology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale, Türkiye
| | | | - Hüseyin Onay
- Gene2Info Health Informatics, İstanbul, Türkiye
- Multigen Genetic Diseases Diagnosis Center, İzmir, Türkiye
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2
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Ishak ND, Shaw T, Li ST, Yuen J, Goh HX, Chua ZY, Suresh P, Que FVF, Zhang Z, Chiang J, Ngeow J. Cancer patients' experience of receiving variant of uncertain significance results: An Asian perspective. J Genet Couns 2023. [PMID: 37864575 DOI: 10.1002/jgc4.1813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 09/26/2023] [Accepted: 09/29/2023] [Indexed: 10/23/2023]
Abstract
Due to a lack of ancestry-matched, functional, and segregation data, Asians have a higher rate of receiving a variant of uncertain significance (VUS) result following panel testing. Managing VUS results presents challenges, as it often leads to increased anxiety and distress among cancer patients undergoing genetic testing. This exploratory study aims to investigate the experience of Asian cancer patients upon receiving a VUS result. A qualitative, semi-structured interview study was conducted, involving cancer patients who had received a VUS result through the Cancer Genetics Service of the National Cancer Centre Singapore. Twenty participants were interviewed, and their responses were transcribed and analyzed using thematic analysis to identify key themes. Thematic analysis revealed five major themes: (1) VUS results are interpreted as uncertain outcomes; (2) a VUS result provides relief and prompts positive behavioral adjustments; (3) patients employ fatalism and religion as coping mechanisms to navigate uncertainty; (4) genetic counselors, family, and the community offer reassurance and support; (5) patients value updates on variant classifications for future management. While this novel study provides unique insights into the perspectives of Asian patients who receive VUS results, it also highlights patients' effective management of VUS results and uncertainty, which has implications for improving counseling practices in Asia. Emphasis must be placed on accurate interpretation and clear communication of VUS results to dispel the possibility of misconceptions, misdiagnosis, and mismanagement in cancer care.
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Affiliation(s)
- Nur Diana Ishak
- Division of Medical Oncology, Cancer Genetics Service, National Cancer Centre Singapore, Singapore, Singapore
| | - Tarryn Shaw
- Division of Medical Oncology, Cancer Genetics Service, National Cancer Centre Singapore, Singapore, Singapore
| | - Shao-Tzu Li
- Division of Medical Oncology, Cancer Genetics Service, National Cancer Centre Singapore, Singapore, Singapore
| | - Jeanette Yuen
- Division of Medical Oncology, Cancer Genetics Service, National Cancer Centre Singapore, Singapore, Singapore
| | - Hui Xuan Goh
- Division of Medical Oncology, Cancer Genetics Service, National Cancer Centre Singapore, Singapore, Singapore
| | - Zi Yang Chua
- Division of Medical Oncology, Cancer Genetics Service, National Cancer Centre Singapore, Singapore, Singapore
| | - Priyadharshini Suresh
- Division of Medical Oncology, Cancer Genetics Service, National Cancer Centre Singapore, Singapore, Singapore
| | - Frances Victoria F Que
- Division of Medical Oncology, Cancer Genetics Service, National Cancer Centre Singapore, Singapore, Singapore
| | - Zewen Zhang
- Division of Medical Oncology, Cancer Genetics Service, National Cancer Centre Singapore, Singapore, Singapore
| | - Jianbang Chiang
- Division of Medical Oncology, Cancer Genetics Service, National Cancer Centre Singapore, Singapore, Singapore
| | - Joanne Ngeow
- Division of Medical Oncology, Cancer Genetics Service, National Cancer Centre Singapore, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
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3
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Ballard LM, Band R, Lucassen AM. Interventions to support patients with sharing genetic test results with at-risk relatives: a synthesis without meta-analysis (SWiM). Eur J Hum Genet 2023; 31:988-1002. [PMID: 37344572 PMCID: PMC10474271 DOI: 10.1038/s41431-023-01400-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 04/22/2023] [Accepted: 05/22/2023] [Indexed: 06/23/2023] Open
Abstract
Whilst the finding of heritable susceptibility to disease was once relatively rare, mainstreaming of genetic testing has resulted in a steady increase. Patients are often encouraged to share their genetic test results with relevant relatives, but relatives may not receive this information, leaving them without knowledge of their own risk. Therefore, strategies to help communicate such information are important. This review aimed to explore the efficacy of existing interventions to improve the sharing of genetic test results. A synthesis without meta-analysis design was used. A systematic search of Medline, CINAHL, PsychINFO, and AMED was conducted, and five studies were identified worldwide. Data were extracted for each study regarding study aim, participant characteristics, condition, intervention details, comparison, study duration, outcome measures, theory and behaviour change techniques used. Limited efficacy and application of theory was found. Knowledge, motivation and self-efficacy were not increased in any intervention. No gender differences in communication behaviour were encountered in interventions that recruited men and women. Two studies reported an evaluation of acceptability, which showed that the interventions were well received by patients and health professionals. No study reported the involvement of the target population in any phase of intervention development. Given the lack of health psychology-informed interventions in this area of clinical genetics, we recommend genetic health professionals, health psychologists and patients collaborate on all stages of future interventions that involve the cascading of genetic health information within families. We also provide guidance regarding use of theory and intervention elements for future intervention development.
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Affiliation(s)
- Lisa Marie Ballard
- Clinical Ethics, Law and Society (CELS), Primary Care, Population Sciences and Medical Education, University of Southampton, Southampton General Hospital, South Academic Block, Tremona Road, Southampton, SO16 6YD, UK.
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK.
| | - Rebecca Band
- Health Sciences, Highfield Campus, University Road, Southampton, SO17 1BJ, UK
| | - Anneke M Lucassen
- Clinical Ethics, Law and Society (CELS), Primary Care, Population Sciences and Medical Education, University of Southampton, Southampton General Hospital, South Academic Block, Tremona Road, Southampton, SO16 6YD, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
- Clinical ethics, law and society (CELS), Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, OX3 7BN, UK
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Davies B, Allan KS, Carroll SL, Gibbs K, Roberts JD, MacIntyre C, Steinberg C, Tadros R, Dorian P, Healey JS, Gardner M, Laksman ZWM, Krahn AD, Fournier A, Seifer C, Lauck SB. Perceived self-efficacy and empowerment in patients at increased risk of sudden cardiac arrest. Front Cardiovasc Med 2023; 10:955060. [PMID: 37255708 PMCID: PMC10225561 DOI: 10.3389/fcvm.2023.955060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 03/10/2023] [Indexed: 06/01/2023] Open
Abstract
Background The role of multidisciplinary clinics for psychosocial care is increasingly recognized for those living with inherited cardiac conditions (ICC). In Canada, access to healthcare providers differ between clinics. Little is known about the relationship between access to specialty care and a patient's ability to cope with, and manage their condition. Methods We leveraged the Hearts in Rhythm Organization (HiRO) to conduct a cross-sectional, community-based survey of individuals with ICC and their family members. We aimed to describe access to services, and explore the relationships between participants' characteristics, cardiac history and self-reported health status and self-efficacy (GSE: General Self-Efficacy Scale) and empowerment (GCOS-24: Genetic Counseling Outcome Scale). Results We collected 235 responses from Canadian participants in 10 provinces and territories. Overall, 63% of participants reported involvement of a genetic counsellor in their care. Access to genetic testing was associated with greater empowerment [mean GCOS-24: 121.14 (SD = 20.53) vs. 105.68 (SD = 21.69); p = 0.004]. Uncertain genetic test results were associated with lower perceived self-efficacy (mean GSE: uncertain = 28.85 vs. positive = 33.16, negative = 34.13; p = 0.01). Low global mental health scores correlated with both lower perceived self-efficacy and empowerment scores, with only 11% of affected participants reporting involvement of psychology services in their care. Conclusion Differences in resource accessibility, clinical history and self-reported health status impact the perceived self-efficacy and empowerment of patients with ICC. Future research evaluating interventions to improve patient outcomes is recommended.
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Affiliation(s)
- Brianna Davies
- Centre for Cardiovascular Innovation, St. Paul’s and Vancouver General Hospitals, University of British Columbia, Vancouver, BC, Canada
| | - Katherine S. Allan
- Division of Cardiology, St. Michael’s Hospital, University of Toronto, Toronto, ON, Canada
| | - Sandra L. Carroll
- School of Nursing, Faculty of Health Science, Population Health Research Institute, McMaster University, Hamilton, ON, Canada
| | - Karen Gibbs
- Centre for Cardiovascular Innovation, St. Paul’s and Vancouver General Hospitals, University of British Columbia, Vancouver, BC, Canada
| | - Jason D. Roberts
- Section of Cardiac Electrophysiology, Division of Cardiology, Department ofMedicine, Western University, London, ON, Canada
| | | | - Christian Steinberg
- Institut Universitaire de Cardiologie et Pneumologie de Québec, Laval University, Quebec City, QC, Canada
| | - Rafik Tadros
- Department of Medicine, Cardiovascular Genetics Center, Montreal Heart Institute, Université de Montréal, Montreal, QC, Canada
| | - Paul Dorian
- Division of Cardiology, St. Michael’s Hospital, University of Toronto, Toronto, ON, Canada
| | - Jeff S. Healey
- School of Nursing, Faculty of Health Science, Population Health Research Institute, McMaster University, Hamilton, ON, Canada
| | | | - Zachary W. M. Laksman
- Centre for Cardiovascular Innovation, St. Paul’s and Vancouver General Hospitals, University of British Columbia, Vancouver, BC, Canada
| | - Andrew D. Krahn
- Centre for Cardiovascular Innovation, St. Paul’s and Vancouver General Hospitals, University of British Columbia, Vancouver, BC, Canada
| | - Anne Fournier
- Division of Pediatric Cardiology, CHU Sainte-Justine, Université de Montréal, Montreal,QC, Canada
| | - Colette Seifer
- Department of Internal Medicine, St Boniface Hospital, University of Manitoba, Winnipeg, MB, Canada
| | - Sandra B. Lauck
- Centre for Cardiovascular Innovation, St. Paul’s and Vancouver General Hospitals, University of British Columbia, Vancouver, BC, Canada
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5
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Burns C, Yeates L, Sweeting J, Semsarian C, Ingles J. Evaluating a communication aid for return of genetic results in families with hypertrophic cardiomyopathy: A randomized controlled trial. J Genet Couns 2023; 32:425-434. [PMID: 36385718 PMCID: PMC10946474 DOI: 10.1002/jgc4.1651] [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: 01/08/2022] [Revised: 09/28/2022] [Accepted: 10/24/2022] [Indexed: 11/18/2022]
Abstract
Genetic testing for hypertrophic cardiomyopathy (HCM) is considered a key aspect of management. Communication of genetic test results to the proband and their family members, can be a barrier to effective uptake. We hypothesized that a communication aid would facilitate effective communication, and sought to evaluate knowledge and communication of HCM risk to at-risk relatives. This was a prospective randomized controlled trial. Consecutive HCM patients attending a specialized clinic, who agreed to participate, were randomized to the intervention or current clinical practice. The intervention consisted of a genetic counselor-led appointment, separate to their clinical cardiology review, and guided by a communication booklet which could be written in and taken home. Current clinical practice was defined as the return of the genetic result by a genetic counselor and cardiologist, often as part of a clinical cardiology review. The primary outcome was the ability and confidence of the individual to communicate genetic results to at-risk relatives. The a priori outcome of improved communication among HCM families did not show statistically significant differences between the control and intervention group, though the majority of probands in the intervention group achieved fair communication (n = 13/22) and had higher genetic knowledge scores than those in the control group (7 ± 3 versus 6 ± 3). A total of 29% of at-risk relatives were not informed of a genetic result in their family. Communication among HCM families remains challenging, with nearly a third of at-risk relatives not informed of a genetic result. We show a significant gap in the current approach to supporting family communication about genetics. Australian New Zealand Clinical Trials Registry: ACTRN12617000706370.
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Affiliation(s)
- Charlotte Burns
- Agnes Ginges Centre for Molecular Cardiology at Centenary InstituteThe University of SydneySydneyAustralia
- Faculty of Medicine and HealthThe University of SydneySydneyAustralia
- Department of CardiologyRoyal Prince Alfred HospitalSydneyAustralia
| | - Laura Yeates
- Agnes Ginges Centre for Molecular Cardiology at Centenary InstituteThe University of SydneySydneyAustralia
- Faculty of Medicine and HealthThe University of SydneySydneyAustralia
- Department of CardiologyRoyal Prince Alfred HospitalSydneyAustralia
| | - Joanna Sweeting
- Cardio Genomics Program at Centenary InstituteThe University of SydneySydneyAustralia
| | - Christopher Semsarian
- Agnes Ginges Centre for Molecular Cardiology at Centenary InstituteThe University of SydneySydneyAustralia
- Faculty of Medicine and HealthThe University of SydneySydneyAustralia
- Department of CardiologyRoyal Prince Alfred HospitalSydneyAustralia
| | - Jodie Ingles
- Faculty of Medicine and HealthThe University of SydneySydneyAustralia
- Department of CardiologyRoyal Prince Alfred HospitalSydneyAustralia
- Cardio Genomics Program at Centenary InstituteThe University of SydneySydneyAustralia
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6
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Lahiri S, Reys B, Wunder J, Pirzadeh-Miller S. Genetic variants with discordant classifications: An assessment of genetic counselor attitudes and practices. J Genet Couns 2023; 32:100-110. [PMID: 35978490 DOI: 10.1002/jgc4.1626] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 07/22/2022] [Accepted: 07/27/2022] [Indexed: 11/11/2022]
Abstract
Discordant variant classifications (DVCs) can impact patient care and pose challenges for clinicians. A survey-based study was conducted to examine genetic counselor (GC) attitudes and practices related to DVCs. Most GCs (202/229, 88%) in the study provide direct patient care across clinical specialties; review patients' genetic test results to determine if reported genetic variants have DVCs (176/202, 88%); and inform patients of known DVCs that impact medical management (165/202, 82%). DVC review, which takes 41 min (range: 5-240) on average per week, is typically prompted by the identification of a variant of uncertain significance (VUS) (160/176, 90%) and is primarily conducted using public databases (176/176, 100%). While most GCs felt it would not be ethical to knowingly provide different medical management recommendations to patients with the same genetic variant (152/229, 66%), they also stated they would rely on the variant classification on the test report (141/229, 61%) and/or the patient's personal/family history (188/229, 82%) to determine which classification to follow if a DVC is identified. Both factors are patient-specific and, inherently, could lead to differing recommendations. When posed with a hypothetical scenario in which two patients have the same genetic variant, but test reports show a DVC (pathogenic vs VUS), most GCs (179/229, 78.2%) stated they would make the same recommendation for both patients regardless of management guidelines. One-third (52/179, 29.1%) cited patient-specific factors, such as personal/family history, would impact their recommendations. Disagreements about whether the pathogenic or VUS classification should be used to make medical management recommendations were noted. Differing practices and opinions on how to manage patients with DVCs, as well as the fact that most GCs (209/229, 91.3%) have consulted with colleagues on this matter, highlight the need for more professional guidance to ensure equitable patient care.
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Affiliation(s)
- Sayoni Lahiri
- Cancer Genetics Program, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Brian Reys
- Cancer Genetics Program, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Julia Wunder
- Oncology-Abstraction, Tempus Labs, Inc., Chicago, Illinois, USA
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7
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Cirino AL, Harris SL, Murad AM, Hansen B, Malinowski J, Natoli JL, Kelly MA, Christian S. The uptake and utility of genetic testing and genetic counseling for hypertrophic cardiomyopathy-A systematic review and meta-analysis. J Genet Couns 2022; 31:1290-1305. [PMID: 35799446 DOI: 10.1002/jgc4.1604] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 05/18/2022] [Accepted: 05/30/2022] [Indexed: 12/14/2022]
Abstract
Genetic testing and genetic counseling are routinely indicated for patients with hypertrophic cardiomyopathy (HCM); however, the uptake and utility of these services is not entirely understood. This systematic review and meta-analysis summarizes the uptake and utility of genetic counseling and genetic testing for patients with HCM and their at-risk family members, as well as the impact of genetic counseling/testing on patient-reported outcomes (PROs). A systematic search was performed through March 12, 2021. Meta-analyses were performed whenever possible; other findings were qualitatively summarized. Forty-eight studies met inclusion criteria (47 observational, 1 randomized). Uptake of genetic testing in probands was 57% (95% confidence interval [CI]: 40, 73). Uptake of cascade screening for at-risk relatives were as follows: 61% for cascade genetic testing (95% CI: 45, 75), 58% for cardiac screening (e.g. echocardiography) (95% CI: 40, 73), and 69% for either/both approaches (95% CI: 43, 87). In addition, relatives of probands with a positive genetic test result were significantly more likely to undergo cascade screening compared to relatives of probands with a negative result (odds ratio = 3.17, 95% CI: 2.12, 4.76). Overall, uptake of genetic counseling in both probands and relatives ranged from 37% to 84%. Multiple studies found little difference in PROs between individuals receiving positive versus negative genetic test results; however, other studies found that individuals with positive genetic test results experienced worse psychological outcomes. Genetic testing may also inform life choices, particularly decisions related to reproduction and insurance. Genetic counseling was associated with high satisfaction, increased perceived personal control and empowerment, and decreased anxiety. Approximately half to three-quarters of patients with HCM and their relatives undergo genetic testing or cascade screening. PROs after genetic testing varied and genetic counseling was associated with high satisfaction and improved PROs.
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Affiliation(s)
- Allison L Cirino
- Cardiovascular Division, Brigham and Women's Hospital, Boston, Massachusetts, USA.,MGH Institute of Health Professions, Boston, Massachusetts, USA
| | - Stephanie L Harris
- Cardiovascular Genetics Program, Cardiology Division, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Andrea M Murad
- Division of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Brittany Hansen
- Center for Personalized Genetic Healthcare, Genomic Medicine Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | | | - Jaime L Natoli
- Kaiser Permanente, Southern California Permanente Medical Group, Pasadena, California, USA
| | - Melissa A Kelly
- Geisinger, Genomic Medicine Institute, Danville, Pennsylvania, USA
| | - Susan Christian
- Department of Medical Genetics, University of Alberta, Edmonton, Alberta, Canada
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8
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van der Crabben SN, Mörner S, Lundström AC, Jonasson J, Bikker H, Amin AS, Rydberg A, Wilde AAM. Should variants of unknown significance (VUS) be disclosed to patients in cardiogenetics or not; only in case of high suspicion of pathogenicity? Eur J Hum Genet 2022; 30:1208-1210. [PMID: 36008533 PMCID: PMC9626604 DOI: 10.1038/s41431-022-01173-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/16/2022] [Accepted: 08/06/2022] [Indexed: 02/04/2023] Open
Affiliation(s)
- Saskia N van der Crabben
- Department of Clinical Genetics, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands.
- European Reference Network for rare, low-prevalence, or complex diseases of the heart (ERN GUARD-Heart), Amsterdam, the Netherlands.
| | - Stellan Mörner
- European Reference Network for rare, low-prevalence, or complex diseases of the heart (ERN GUARD-Heart), Amsterdam, the Netherlands
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Anna C Lundström
- European Reference Network for rare, low-prevalence, or complex diseases of the heart (ERN GUARD-Heart), Amsterdam, the Netherlands
- Department of Clinical Science, Umeå University, Umeå, Sweden
| | - Jenni Jonasson
- European Reference Network for rare, low-prevalence, or complex diseases of the heart (ERN GUARD-Heart), Amsterdam, the Netherlands
- Department of Medical Biosciences, Mecial and Clinical Genetics, Umeå University, Umeå, Sweden
| | - Hennie Bikker
- Department of Clinical Genetics, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
- European Reference Network for rare, low-prevalence, or complex diseases of the heart (ERN GUARD-Heart), Amsterdam, the Netherlands
| | - Ahmad S Amin
- European Reference Network for rare, low-prevalence, or complex diseases of the heart (ERN GUARD-Heart), Amsterdam, the Netherlands
- Department of Clinical and Experimental Cardiology, Amsterdam Cardiovascular Sciences Amsterdam University Medical Centers, University of Amsterdam, Heart Center, Amsterdam, the Netherlands
| | - Annika Rydberg
- European Reference Network for rare, low-prevalence, or complex diseases of the heart (ERN GUARD-Heart), Amsterdam, the Netherlands
- Department of Clinical Science, Umeå University, Umeå, Sweden
| | - Arthur A M Wilde
- European Reference Network for rare, low-prevalence, or complex diseases of the heart (ERN GUARD-Heart), Amsterdam, the Netherlands
- Department of Clinical and Experimental Cardiology, Amsterdam Cardiovascular Sciences Amsterdam University Medical Centers, University of Amsterdam, Heart Center, Amsterdam, the Netherlands
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9
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Stiles MK, Wilde AAM, Abrams DJ, Ackerman MJ, Albert CM, Behr ER, Chugh SS, Cornel MC, Gardner K, Ingles J, James CA, Juang JMJ, Kääb S, Kaufman ES, Krahn AD, Lubitz SA, MacLeod H, Morillo CA, Nademanee K, Probst V, Saarel EV, Sacilotto L, Semsarian C, Sheppard MN, Shimizu W, Skinner JR, Tfelt-Hansen J, Wang DW. 2020 APHRS/HRS expert consensus statement on the investigation of decedents with sudden unexplained death and patients with sudden cardiac arrest, and of their families. J Arrhythm 2021; 37:481-534. [PMID: 34141003 PMCID: PMC8207384 DOI: 10.1002/joa3.12449] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 10/14/2020] [Indexed: 12/26/2022] Open
Abstract
This international multidisciplinary document intends to provide clinicians with evidence-based practical patient-centered recommendations for evaluating patients and decedents with (aborted) sudden cardiac arrest and their families. The document includes a framework for the investigation of the family allowing steps to be taken, should an inherited condition be found, to minimize further events in affected relatives. Integral to the process is counseling of the patients and families, not only because of the emotionally charged subject, but because finding (or not finding) the cause of the arrest may influence management of family members. The formation of multidisciplinary teams is essential to provide a complete service to the patients and their families, and the varied expertise of the writing committee was formulated to reflect this need. The document sections were divided up and drafted by the writing committee members according to their expertise. The recommendations represent the consensus opinion of the entire writing committee, graded by Class of Recommendation and Level of Evidence. The recommendations were opened for public comment and reviewed by the relevant scientific and clinical document committees of the Asia Pacific Heart Rhythm Society (APHRS) and the Heart Rhythm Society (HRS); the document underwent external review and endorsement by the partner and collaborating societies. While the recommendations are for optimal care, it is recognized that not all resources will be available to all clinicians. Nevertheless, this document articulates the evaluation that the clinician should aspire to provide for patients with sudden cardiac arrest, decedents with sudden unexplained death, and their families.
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Affiliation(s)
- Martin K Stiles
- Waikato Clinical School Faculty of Medicine and Health Science The University of Auckland Hamilton New Zealand
| | - Arthur A M Wilde
- Heart Center Department of Clinical and Experimental Cardiology Amsterdam University Medical Center University of Amsterdam Amsterdam the Netherlands
| | | | | | | | - Elijah R Behr
- Cardiovascular Clinical Academic Group, Molecular and Clinical Sciences Institute St George's University of London, and St George's University Hospitals NHS Foundation Trust London UK
| | | | - Martina C Cornel
- Amsterdam University Medical Center Vrije Universiteit Amsterdam Clinical Genetics Amsterdam Public Health Research Institute Amsterdam the Netherlands
| | | | - Jodie Ingles
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute The University of Sydney Sydney Australia
| | | | - Jyh-Ming Jimmy Juang
- Cardiovascular Center and Division of Cardiology Department of Internal Medicine National Taiwan University Hospital and National Taiwan University College of Medicine Taipei Taiwan
| | - Stefan Kääb
- Department of Medicine I University Hospital LMU Munich Munich Germany
| | | | | | | | - Heather MacLeod
- Data Coordinating Center for the Sudden Death in the Young Case Registry Okemos MI USA
| | | | - Koonlawee Nademanee
- Chulalongkorn University Faculty of Medicine, and Pacific Rim Electrophysiology Research Institute at Bumrungrad Hospital Bangkok Thailand
| | | | - Elizabeth V Saarel
- Cleveland Clinic Lerner College of Cardiology at Case Western Reserve University Cleveland OH USA
- St Luke's Medical Center Boise ID USA
| | - Luciana Sacilotto
- Heart Institute University of São Paulo Medical School São Paulo Brazil
| | - Christopher Semsarian
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute The University of Sydney Sydney Australia
| | - Mary N Sheppard
- Cardiovascular Clinical Academic Group, Molecular and Clinical Sciences Institute St George's University of London, and St George's University Hospitals NHS Foundation Trust London UK
| | - Wataru Shimizu
- Department of Cardiovascular Medicine Nippon Medical School Tokyo Japan
| | | | - Jacob Tfelt-Hansen
- Department of Forensic Medicine Faculty of Medical Sciences Rigshospitalet Copenhagen Denmark
| | - Dao Wu Wang
- The First Affiliated Hospital of Nanjing Medical University Nanjing China
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10
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Stiles MK, Wilde AAM, Abrams DJ, Ackerman MJ, Albert CM, Behr ER, Chugh SS, Cornel MC, Gardner K, Ingles J, James CA, Jimmy Juang JM, Kääb S, Kaufman ES, Krahn AD, Lubitz SA, MacLeod H, Morillo CA, Nademanee K, Probst V, Saarel EV, Sacilotto L, Semsarian C, Sheppard MN, Shimizu W, Skinner JR, Tfelt-Hansen J, Wang DW. 2020 APHRS/HRS expert consensus statement on the investigation of decedents with sudden unexplained death and patients with sudden cardiac arrest, and of their families. Heart Rhythm 2021; 18:e1-e50. [PMID: 33091602 PMCID: PMC8194370 DOI: 10.1016/j.hrthm.2020.10.010] [Citation(s) in RCA: 147] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 10/09/2020] [Indexed: 12/13/2022]
Abstract
This international multidisciplinary document intends to provide clinicians with evidence-based practical patient-centered recommendations for evaluating patients and decedents with (aborted) sudden cardiac arrest and their families. The document includes a framework for the investigation of the family allowing steps to be taken, should an inherited condition be found, to minimize further events in affected relatives. Integral to the process is counseling of the patients and families, not only because of the emotionally charged subject, but because finding (or not finding) the cause of the arrest may influence management of family members. The formation of multidisciplinary teams is essential to provide a complete service to the patients and their families, and the varied expertise of the writing committee was formulated to reflect this need. The document sections were divided up and drafted by the writing committee members according to their expertise. The recommendations represent the consensus opinion of the entire writing committee, graded by Class of Recommendation and Level of Evidence. The recommendations were opened for public comment and reviewed by the relevant scientific and clinical document committees of the Asia Pacific Heart Rhythm Society (APHRS) and the Heart Rhythm Society (HRS); the document underwent external review and endorsement by the partner and collaborating societies. While the recommendations are for optimal care, it is recognized that not all resources will be available to all clinicians. Nevertheless, this document articulates the evaluation that the clinician should aspire to provide for patients with sudden cardiac arrest, decedents with sudden unexplained death, and their families.
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Affiliation(s)
- Martin K Stiles
- Waikato Clinical School, Faculty of Medicine and Health Science, The University of Auckland, Hamilton, New Zealand
| | - Arthur A M Wilde
- Amsterdam University Medical Center, University of Amsterdam, Heart Center, Department of Clinical and Experimental Cardiology, Amsterdam, the Netherlands
| | | | | | | | - Elijah R Behr
- Cardiovascular Clinical Academic Group, Molecular and Clinical Sciences Institute, St George's, University of London, and St George's University Hospitals NHS Foundation Trust, London, United Kingdom
| | - Sumeet S Chugh
- Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Martina C Cornel
- Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Clinical Genetics, Amsterdam Public Health Research Institute, Amsterdam, the Netherlands
| | | | - Jodie Ingles
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute, The University of Sydney, Sydney, Australia
| | | | - Jyh-Ming Jimmy Juang
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Stefan Kääb
- Department of Medicine I, University Hospital, LMU Munich, Munich, Germany
| | | | - Andrew D Krahn
- The University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Heather MacLeod
- Data Coordinating Center for the Sudden Death in the Young Case Registry, Okemos, Michigan, USA
| | | | - Koonlawee Nademanee
- Chulalongkorn University, Faculty of Medicine, and Pacific Rim Electrophysiology Research Institute at Bumrungrad Hospital, Bangkok, Thailand
| | | | - Elizabeth V Saarel
- Cleveland Clinic Lerner College of Cardiology at Case Western Reserve University, Cleveland, Ohio, and St Luke's Medical Center, Boise, Idaho, USA
| | - Luciana Sacilotto
- Heart Institute, University of São Paulo Medical School, São Paulo, Brazil
| | - Christopher Semsarian
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute, The University of Sydney, Sydney, Australia
| | - Mary N Sheppard
- Cardiovascular Clinical Academic Group, Molecular and Clinical Sciences Institute, St George's, University of London, and St George's University Hospitals NHS Foundation Trust, London, United Kingdom
| | - Wataru Shimizu
- Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan
| | - Jonathan R Skinner
- Cardiac Inherited Disease Group, Starship Hospital, Auckland, New Zealand
| | - Jacob Tfelt-Hansen
- Department of Forensic Medicine, Faculty of Medical Sciences, Rigshospitalet, Copenhagen, Denmark
| | - Dao Wu Wang
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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11
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Mighton C, Shickh S, Uleryk E, Pechlivanoglou P, Bombard Y. Clinical and psychological outcomes of receiving a variant of uncertain significance from multigene panel testing or genomic sequencing: a systematic review and meta-analysis. Genet Med 2020; 23:22-33. [PMID: 32921787 DOI: 10.1038/s41436-020-00957-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 12/18/2022] Open
Abstract
This study systematically reviewed and synthesized the literature on psychological and clinical outcomes of receiving a variant of uncertain significance (VUS) from multigene panel testing or genomic sequencing. MEDLINE and EMBASE were searched. Two reviewers screened studies and extracted data. Data were synthesized through meta-analysis and meta-aggregation. The search identified 4539 unique studies and 15 were included in the review. Patients with VUS reported higher genetic test-specific concerns on the Multidimensional Impact of Cancer Risk Assessment (MICRA) scale than patients with negative results (mean difference 3.73 [95% CI 0.80 to 6.66] P = 0.0126), and lower than patients with positive results (mean difference -7.01 [95% CI -11.31 to -2.71], P = 0.0014). Patients with VUS and patients with negative results were similarly likely to have a change in their clinical management (OR 1.41 [95% CI 0.90 to 2.21], P = 0.182), and less likely to have a change in management than patients with positive results (OR 0.09 [95% CI 0.05 to 0.19], P < 0.0001). Factors that contributed to how patients responded to their VUS included their interpretation of the result and their health-care provider's counseling and recommendations. Review findings suggest there may be a need for practice guidelines or clinical decision support tools for VUS disclosure and management.
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Affiliation(s)
- Chloe Mighton
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON, Canada.,Genomics Health Services Research Program, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, ON, Canada
| | - Salma Shickh
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON, Canada.,Genomics Health Services Research Program, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, ON, Canada
| | | | - Petros Pechlivanoglou
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON, Canada.,The Hospital for Sick Children, Toronto, ON, Canada
| | - Yvonne Bombard
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON, Canada. .,Genomics Health Services Research Program, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, ON, Canada.
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12
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Muller RD, McDonald T, Pope K, Cragun D. Evaluation of Clinical Practices Related to Variants of Uncertain Significance Results in Inherited Cardiac Arrhythmia and Inherited Cardiomyopathy Genes. CIRCULATION-GENOMIC AND PRECISION MEDICINE 2020; 13:e002789. [DOI: 10.1161/circgen.119.002789] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Increasing use of genetic tests have identified many variants of uncertain significance (VUS) in genes associated with inherited arrhythmias and cardiomyopathies. Evaluation of clinical practices, including medical management recommendations for VUS patients and their families, is important to prevent over- or under-treatment that may result in morbidity or mortality. The purpose of this study is to describe practices related to VUS results including information and medical management recommendations providers give patients and their families.
Methods:
An anonymous online survey was distributed to genetic counselors (GCs) and cardiologists who have seen at least one patient for inherited arrhythmias or cardiomyopathies. The survey explored providers’ confidence in counseling, explanation of VUSs, topics covered before and after genetic testing, and clinical recommendations using a hypothetical scenario maximizing uncertainty with an unclear clinical and molecular diagnosis. Descriptive statistics were calculated, and median confidence and likelihood of making various medical recommendations were compared across provider type.
Results:
Providers (N=102) who completed the survey included 29 cardiovascular GCs, 50 GCs from other specialties, and 23 cardiologists. GCs feel more confident than cardiologists counseling about VUS results (
P
<0.001); while both cardiovascular GCs and cardiologists feel more confident than other GCs in providing input regarding medical management recommendations (
P
=0.001 and
P
=0.01, respectively). Cardiologists were more likely than cardiac GCs to recommend clinical testing for family members even though testing in the scenario is expected to be uninformative.
Conclusions:
These findings illustrate how the expertise of different providers may impact decision processes, suggesting the need for interdisciplinary clinics to optimize care for challenging cases.
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Affiliation(s)
- Reka D. Muller
- College of Medicine, Department of Obstetrics and Gynecology (R.D.M.), University of South Florida, Tampa, FL
| | - Thomas McDonald
- College of Medicine, Department of Cardiovascular Sciences (T.M.), University of South Florida, Tampa, FL
| | - Kathleen Pope
- College of Public Health (K.P., D.C.), University of South Florida, Tampa, FL
| | - Deborah Cragun
- College of Public Health (K.P., D.C.), University of South Florida, Tampa, FL
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13
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Paratz E, Semsarian C, La Gerche A. Mind the gap: Knowledge deficits in evaluating young sudden cardiac death. Heart Rhythm 2020; 17:2208-2214. [PMID: 32721478 DOI: 10.1016/j.hrthm.2020.07.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/19/2020] [Accepted: 07/20/2020] [Indexed: 12/17/2022]
Abstract
Sudden cardiac arrest affects around half a million people aged under 50 years old annually, with a 90% mortality rate. Despite high patient numbers and clear clinical need to improve outcomes, many gaps exist in the evidence underpinning patients' management. Domains identifying the greatest barriers to conducting trials are the prehospital and forensic settings, which also provide care to the majority of patients. Addressing gaps in evidence along each point of the cardiac arrest trajectory is a key clinical priority.
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Affiliation(s)
- Elizabeth Paratz
- Clinical Research Domain, Baker Heart & Diabetes Institute, Melbourne, Australia; National Centre for Sports Cardiology, St Vincent's Hospital Melbourne, Fitzroy, Australia.
| | - Christopher Semsarian
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute, The University of Sydney, Sydney, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia
| | - Andre La Gerche
- Clinical Research Domain, Baker Heart & Diabetes Institute, Melbourne, Australia; National Centre for Sports Cardiology, St Vincent's Hospital Melbourne, Fitzroy, Australia
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14
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Abstract
Cardiovascular genetic counselors provide guidance to people facing the reality or prospect of inherited cardiovascular conditions. Key activities in this role include discussing clinical cardiac screening for at-risk family members and offering genetic testing. Psychological factors often influence whether patients choose to have genetic testing and how they understand and communicate the results to at-risk relatives, so psychological counseling increases the impact of genetic education and medical recommendations. This work reviews the literature on the factors that influence patient decisions about cardiovascular genetic testing and the psychological impact of results on people who opt to test. It also models use of a psychological framework to apply themes from the literature to routine cardiovascular genetic counseling practice. Modifications of the framework are provided to show how it can be adapted to serve the needs of both new and experienced genetic counselors.
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Affiliation(s)
- Julia Platt
- Stanford Center for Inherited Cardiovascular Disease, Falk Cardiovascular Research Center, Stanford, California 94305, USA
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15
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Clift K, Macklin S, Halverson C, McCormick JB, Abu Dabrh AM, Hines S. Patients' views on variants of uncertain significance across indications. J Community Genet 2020; 11:139-145. [PMID: 31432391 PMCID: PMC7062975 DOI: 10.1007/s12687-019-00434-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 08/12/2019] [Indexed: 02/06/2023] Open
Abstract
As genomic sequencing expands into more areas of patient care, an increasing number of patients learn of the variants of uncertain significance (VUSs) that they carry. Understanding the potential psychosocial consequences of the disclosure of a VUS can help inform pre- and post-test counseling discussions. Medical uncertainty in general elicits a variety of responses from patients, particularly in the growing field of medical genetics and genomics. It is important to consider patients' responses to the ambiguous nature of VUSs across different indications and situational contexts. Genetic counselors and other providers ordering genetic testing should be prepared for the possibility of their patients' misinterpretation of such results. Pre-test counseling should include a discussion of the possibility of VUSs and what it would mean for the patient's care and its potential psychosocial impacts. When a VUS is found, post-test counseling should include additional education and a discussion of the variant's implications and medical management recommendations based on the results. These discussions may help temper subjective interpretations, unrealistic views, and decisional regret.
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Affiliation(s)
- Kristin Clift
- Mayo Clinic Center for Individualized Medicine, Jacksonville, FL, USA.
| | - Sarah Macklin
- Mayo Clinic Department of Clinical Genomics, Jacksonville, FL, USA
| | - Colin Halverson
- Center for Bioethics, Indiana University School of Medicine, Indianapolis, IN, USA
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16
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Mazzarotto F, Olivotto I, Walsh R. Advantages and Perils of Clinical Whole-Exome and Whole-Genome Sequencing in Cardiomyopathy. Cardiovasc Drugs Ther 2020; 34:241-253. [DOI: 10.1007/s10557-020-06948-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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17
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Waddell-Smith KE, Skinner JR, Bos JM. Pre-Test Probability and Genes and Variants of Uncertain Significance in Familial Long QT Syndrome. Heart Lung Circ 2020; 29:512-519. [PMID: 32044265 DOI: 10.1016/j.hlc.2019.12.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/08/2019] [Accepted: 12/18/2019] [Indexed: 11/29/2022]
Abstract
The genetics underlying familial long QT syndrome (LQTS) are among the best characterised of all of the inherited heart conditions. Cohort and registry studies have demonstrated important genotype-phenotype correlations that are now essential in guiding clinical practice of patients with the most common three genotypes; KCNQ1 (LQT type 1), KCNH2 (LQT type 2) and SCN5A (LQT type 3). However, the growing number of genes-now more than 16-is confusing, and there is much doubt as to whether many actually cause LQTS at all. Furthermore, changes in sequencing techniques, evolving variant classification criteria and new scientific discoveries make all genes and variants subject to a continuous process of re-classification. This review discusses the nature of variant adjudication, the important concept of pre-test probability in interpreting a genetic result and how the nomenclature of LQTS is shifting in response to this new knowledge. It further discusses the role of deep phenotyping, the inclusion of evaluation of family members in interpreting a genetic test result, or even deciding if genetic testing should occur at all, and the role of specialist multidisciplinary teams to translate this continuously evolving knowledge into the best clinical advice, in partnership with referring cardiologists.
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Affiliation(s)
- Kathryn E Waddell-Smith
- College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia; Department of Cardiovascular Medicine, Flinders Medical Centre, Adelaide, SA, Australia.
| | - Jonathan R Skinner
- Green Lane Paediatric and Congenital Cardiac Service, Starship Children's Hospital, Auckland, New Zealand; Department of Paediatrics, Child and Youth Health, University of Auckland, Auckland, New Zealand
| | - J Martijn Bos
- Windland Smith Rice Sudden Death Genomics Laboratory, Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN, USA
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18
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Nightingale BM, Hovick SR, Brock P, Callahan E, Jordan E, Roggenbuck J, Sturm AC, Morales A. Hypertrophic cardiomyopathy genetic test reports: A qualitative study of patient understanding of uninformative genetic test results. J Genet Couns 2019; 28:1087-1097. [DOI: 10.1002/jgc4.1159] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 07/24/2019] [Accepted: 07/28/2019] [Indexed: 01/06/2023]
Affiliation(s)
| | | | - Pamela Brock
- Division of Human Genetics The Ohio State University Columbus Ohio
| | - Emily Callahan
- Division of Human Genetics The Ohio State University Columbus Ohio
| | - Elizabeth Jordan
- Division of Human Genetics The Ohio State University Columbus Ohio
| | | | - Amy C. Sturm
- Genomic Medicine Institute Geisinger Health, Weis Center for Research Danville Pennsylvania
| | - Ana Morales
- Division of Human Genetics The Ohio State University Columbus Ohio
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19
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Wong EK, Bartels K, Hathaway J, Burns C, Yeates L, Semsarian C, Krahn AD, Virani A, Ingles J. Perceptions of genetic variant reclassification in patients with inherited cardiac disease. Eur J Hum Genet 2019; 27:1134-1142. [PMID: 30903112 PMCID: PMC6777462 DOI: 10.1038/s41431-019-0377-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 01/16/2019] [Accepted: 03/01/2019] [Indexed: 01/08/2023] Open
Abstract
Interpretation of sequence variants is an ongoing challenge and new approaches aim to increase stringency. The reclassification of variants has the potential to alter medical management and elicit psychosocial consequences for patients. The perspective of patients with an inherited cardiac disease and a clinically significant variant reclassification was explored through semi-structured phone interviews. Participants were recruited from two specialized multidisciplinary centers in Canada and Australia. Qualitative analysis was performed through a thematic analysis approach. Fifteen participants were interviewed, including 9 (60%) with an inherited cardiomyopathy and 6 (40%) with an inherited arrhythmia syndrome. Six (40%) patients had a classification upgrade, while 9 (60%) had a downgrade. Four major themes emerged: (1) reactions towards the reclassified variant; (2) impact on decision-making; (3) perception of the reclassification process; and (4) improvement of the reclassification process. Many patients adjusted to the reclassification, however some misunderstood the implications, impacting their responses and decision-making. In conclusion, careful discussion with patients about uncertainty and the potential for reclassification are crucial to ensure a deeper understanding of the outcome of genetic testing and impact on families.
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Affiliation(s)
- Eugene K Wong
- Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada
| | | | | | - Charlotte Burns
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute, The University of Sydney, Sydney, NSW, Australia
- Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Laura Yeates
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute, The University of Sydney, Sydney, NSW, Australia
- Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Christopher Semsarian
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute, The University of Sydney, Sydney, NSW, Australia
- Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | | | - Alice Virani
- Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada
| | - Jodie Ingles
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute, The University of Sydney, Sydney, NSW, Australia.
- Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia.
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20
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Burns C, Yeates L, Semsarian C, Ingles J. Evaluating a custom-designed aid to improve communication of genetic results in families with hypertrophic cardiomyopathy: study protocol for a randomised controlled trial. BMJ Open 2019; 9:e026627. [PMID: 30782759 PMCID: PMC6361342 DOI: 10.1136/bmjopen-2018-026627] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Genetic testing for hypertrophic cardiomyopathy (HCM) in the era of genomics brings unique challenges for genetic counselling. The number of genes routinely included in an HCM gene panel has increased markedly, many with minimal if any robust evidence of gene-disease association. Subsequently, there is a greater chance of uncertain genetic findings. The responsibility of communicating this information with at-risk relatives lies with the index case (proband). We have developed a communication aid to assist with the delivery of genetic results to the proband. We have previously shown the aid is feasible and acceptable and have now developed a study protocol for a randomised controlled trial of a genetic counsellor-led intervention incorporating the communication aid. METHODS AND ANALYSIS This is a prospective randomised controlled trial. We will investigate the impact of a genetic counsellor-led intervention to return proband genetic results using a custom-designed communication aid. We aim to improve knowledge and empowerment. The primary outcome of this trial is the ability and confidence of the proband to communicate genetic results to at-risk relatives. Secondary outcomes will assess genetic knowledge, satisfaction with services, outcomes from genetic counselling and psychological adaptation to genetic information. ETHICS AND DISSEMINATION This study has been approved by and is in strict accordance with the Sydney Local Health District Ethics Review Committee (X16-0030; 22/01/2016; version 1). Results from this trial will be prepared as a manuscript and submitted to peer-reviewed journals for publication as well as submission for presentation at national and international meetings. TRIAL REGISTRATION NUMBER ACTRN12617000706370.
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Affiliation(s)
- Charlotte Burns
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute, The University of Sydney, Newtown, NSW, Australia
- Faculty of Medicine and Health, The University of Sydney, Newtown, NSW, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Laura Yeates
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute, The University of Sydney, Newtown, NSW, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Christopher Semsarian
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute, The University of Sydney, Newtown, NSW, Australia
- Faculty of Medicine and Health, The University of Sydney, Newtown, NSW, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Jodie Ingles
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute, The University of Sydney, Newtown, NSW, Australia
- Faculty of Medicine and Health, The University of Sydney, Newtown, NSW, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
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21
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Bates K, Sweeting J, Yeates L, McDonald K, Semsarian C, Ingles J. Psychological adaptation to molecular autopsy findings following sudden cardiac death in the young. Genet Med 2018; 21:1452-1456. [DOI: 10.1038/s41436-018-0338-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 10/03/2018] [Indexed: 11/09/2022] Open
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22
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Song T, Wan S, Li Y, Xu Y, Dang Y, Zheng Y, Li C, Zheng J, Chen B, Zhang J. Detection of copy number variants using chromosomal microarray analysis for the prenatal diagnosis of congenital heart defects with normal karyotype. J Clin Lab Anal 2018; 33:e22630. [PMID: 30047171 DOI: 10.1002/jcla.22630] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 07/04/2018] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND With the increasing availability of chromosomal microarray analysis (CMA) for congenital heart defect (CHD), genetic testing now faces new challenges due to results with uncertain clinical impact. Studies are needed to better define the penetrance of genetic variants. The aim of the study was to examine the association between CMA and CHDs in fetuses with normal karyotype. METHODS This was a retrospective study of 190 fetuses with normal karyotype that underwent CMA after a diagnosis of CHD by fetal ultrasound. Invasive prenatal diagnosis was performed between January 2015 and December 2016 at the first affiliated hospital of Air Force Medical University. RESULTS Chromosomal microarray analysis detected pathogenic copy number variants (pCNVs) in 13/190 (6.84%) fetuses, likely pCNVs in 5/190 (2.63%), and variants of unknown significance (VOUS) in 14/190 (7.37%). Among those with pCNVs, none (0%) yielded a normal live birth. Among those with likely pCNVs, 2/5 (40.0%) yielded a live birth. Among the fetuses with VOUS, 10/14 (71.5%) yielded a live birth. CONCLUSION These results highlight the usefulness of CMA for prenatal genetic diagnosis of fetuses with CHDs and normal karyotype. In fetuses with CHD, the application of CMA could increase the detection rate of pCNVs causing CHDs. In this study, some VOUS were likely pathogenic, but additional studies are necessary to confirm these findings.
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Affiliation(s)
- Tingting Song
- Department of Obstetrics and Gynecology, the first affiliated hospital of Air Force Medical University, Xi'an, China
| | - Shanning Wan
- Department of Obstetrics and Gynecology, the first affiliated hospital of Air Force Medical University, Xi'an, China
| | - Yu Li
- Department of Obstetrics and Gynecology, the first affiliated hospital of Air Force Medical University, Xi'an, China
| | - Ying Xu
- Department of Obstetrics and Gynecology, the first affiliated hospital of Air Force Medical University, Xi'an, China
| | - Yinghui Dang
- Department of Obstetrics and Gynecology, the first affiliated hospital of Air Force Medical University, Xi'an, China
| | - Yunyun Zheng
- Department of Obstetrics and Gynecology, the first affiliated hospital of Air Force Medical University, Xi'an, China
| | - Chunyan Li
- Department of Obstetrics and Gynecology, the first affiliated hospital of Air Force Medical University, Xi'an, China
| | - Jiao Zheng
- Department of Obstetrics and Gynecology, the first affiliated hospital of Air Force Medical University, Xi'an, China
| | - Biliang Chen
- Department of Obstetrics and Gynecology, the first affiliated hospital of Air Force Medical University, Xi'an, China
| | - Jianfang Zhang
- Department of Obstetrics and Gynecology, the first affiliated hospital of Air Force Medical University, Xi'an, China
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Examining the Psychosocial Impact of Genetic Testing for Cardiomyopathies. J Genet Couns 2017; 27:927-934. [PMID: 29243008 DOI: 10.1007/s10897-017-0186-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 11/27/2017] [Indexed: 10/18/2022]
Abstract
Inherited cardiomyopathies, including hypertrophic cardiomyopathy (HCM) and dilated cardiomyopathy (DCM), are the most common monogenic cause of cardiac disease and can rarely lead to sudden cardiac death (SCD). They are characterized by incomplete and age-dependent penetrance and are usually initially symptomatic in adulthood yet can present in childhood as well. Over 20 genes have been identified to cause HCM, and more than 40 genes are known to cause DCM. Genetic testing for these genes has been integrated into medical care; however, the psychological impact of genetic testing and the impact of the uncertainty that comes with receiving these results have not been well studied. This study surveyed 90 adult probands and relatives with a personal or family history of cardiomyopathy from a single hospital-based cardiac genetic program to determine the psychosocial impact of genetic testing for cardiomyopathies. Standardized psychological instruments including an adapted Multidimensional Impact of Cancer Risk Assessment (aMICRA), Impact of Event Scale (IES), and Satisfaction with Decision (SWD) scales were utilized. Patients with positive genetic test results had higher scores for intrusive thoughts, avoidance, and distress when compared to those with negative genetic test results and were also more likely to make or plan to make life changes because of the results of their genetic testing. Satisfaction with the decision to undergo genetic testing was similar regardless of genetic test results. The results of this study provide insight into the patient experience of genetic testing for cardiomyopathies and how these experiences are associated with genetic test results and cardiac history.
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Burns C, James C, Ingles J. Communication of genetic information to families with inherited rhythm disorders. Heart Rhythm 2017; 15:780-786. [PMID: 29175646 DOI: 10.1016/j.hrthm.2017.11.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Indexed: 01/10/2023]
Abstract
Given the dynamic nature of the electrical activity of the heart and ongoing challenges in the diagnostics of inherited heart rhythm disorders, genetic information can be a vital aspect of family management. Communication of genetic information is complex, and the responsibility to convey this information to the family lies with the proband. Current practice falls short, requiring additional support from the clinician and multidisciplinary team. Communication is a 2-part iterative process, reliant on both the understanding of the probands and their ability to effectively communicate with relatives. With the surge of high-throughput genetic testing, results generated are increasingly complex, making the task of communication more challenging. Here we discuss 3 key issues. First, the probabilistic nature of genetic test results means uncertainty is inherent to the practice. Second, secondary findings may arise. Third, personal preferences, values, and family dynamics also come into play and must be acknowledged when considering how best to support effective communication. Here we provide insight into the challenges and provide practical advice for clinicians to support effective family communication. These strategies include acknowledging and managing genetic uncertainty, genetic counseling and informed consent, and consideration of personal and familial barriers to effective communication. We will explore the potential for developing resources to assist clinicians in providing patients with sufficient knowledge and support to communicate complex information to their at-risk relatives. Specialized multidisciplinary clinics remain the best equipped to manage patients and families with inherited heart rhythm disorders given the need for a high level of information and support.
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Affiliation(s)
- Charlotte Burns
- Agnes Ginges Centre for Molecular Cardiology, Centenary Institute, Sydney, Australia; Sydney Medical School, University of Sydney, Sydney, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia
| | - Cynthia James
- Division of Cardiology, Department of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Jodie Ingles
- Agnes Ginges Centre for Molecular Cardiology, Centenary Institute, Sydney, Australia; Sydney Medical School, University of Sydney, Sydney, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia.
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Ingles J, Burns C, Funke B. Pathogenicity of Hypertrophic Cardiomyopathy Variants. ACTA ACUST UNITED AC 2017; 10:CIRCGENETICS.117.001916. [DOI: 10.1161/circgenetics.117.001916] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Jodie Ingles
- From the Agnes Ginges Centre for Molecular Cardiology, Centenary Institute, Sydney, Australia (J.I., C.B.); Sydney Medical School, University of Sydney, Australia (J.I., C.B.); Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia (J.I., C.B.); Department of Pathology, Massachusetts General Hospital, Boston (B.F.); and Harvard Medical School, Boston, MA (B.F.)
| | - Charlotte Burns
- From the Agnes Ginges Centre for Molecular Cardiology, Centenary Institute, Sydney, Australia (J.I., C.B.); Sydney Medical School, University of Sydney, Australia (J.I., C.B.); Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia (J.I., C.B.); Department of Pathology, Massachusetts General Hospital, Boston (B.F.); and Harvard Medical School, Boston, MA (B.F.)
| | - Birgit Funke
- From the Agnes Ginges Centre for Molecular Cardiology, Centenary Institute, Sydney, Australia (J.I., C.B.); Sydney Medical School, University of Sydney, Australia (J.I., C.B.); Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia (J.I., C.B.); Department of Pathology, Massachusetts General Hospital, Boston (B.F.); and Harvard Medical School, Boston, MA (B.F.)
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Affiliation(s)
- Gerald F Watts
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Australia
- Lipid Disorders Clinic, Department of Cardiology, Royal Perth Hospital, Perth, Australia
| | - Jing Pang
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Australia
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