Sudden cardiac death (SCD) is defined as natural unexpected death in witnessed cases occurring < 1 h and in unwitnessed cases as last seen alive < 24 h. SCD due to ischaemic heart disease (IHD) is frequent in older age groups; in younger people genetic cardiac causes, including channelopathies and cardiomyopathies, are more frequent. This study aimed to present the causes of SCD from a large specialist pathology registry.

https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/his.14889

Sudden arrhythmic death and cardiomyopathy are important causes of sudden cardiac death in the UK: results from a national coronial autopsy database

Evolution of genetic testing and gene therapy in hypertrophic cardiomyopathy

Inherited cardiovascular diseases are highly heterogeneous conditions with multiple genetic loci involved. The application of advanced molecular tools, such as Next Generation Sequencing, has facilitated the genetic analysis of these disorders. Accurate analysis and variant identification are required to maximize the quality of the sequencing data. Therefore, the application of NGS for clinical purposes should be limited to laboratories with a high level of technological expertise and resources. In addition, appropriate gene selection and variant interpretation can result in the highest possible diagnostic yield. Implementation of genetics in cardiology is imperative for the accurate diagnosis, prognosis and management of several inherited disorders and could eventually lead to the realization of precision medicine in this field. However, genetic testing should also be accompanied by an appropriate genetic counseling procedure that clarifies the significance of the genetic analysis results for the proband and his family. In this regard, a multidisciplinary collaboration among physicians, geneticists, and bioinformaticians is imperative. In the present review, we address the current state of knowledge regarding genetic analysis strategies employed in the field of cardiogenetics. Variant interpretation and reporting guidelines are explored. Additionally, gene selection procedures are accessed, with a particular emphasis on information concerning gene-disease associations collected from international alliances such as the Gene Curation Coalition (GenCC). In this context, a novel approach to gene categorization is proposed. Moreover, a sub-analysis is conducted on the 1,502,769 variation records with submitted interpretations in the Clinical Variation (ClinVar) database, focusing on cardiology-related genes. Finally, the most recent information on genetic analysis's clinical utility is reviewed.

/pdf/application-of-next-generation-sequencing-in-cardiology-2mqzg3za.pdf

Application of next generation sequencing in cardiology: current and future precision medicine implications

Hypertrophic cardiomyopathy (HCM) is an important cause of morbidity and mortality in children. While the aetiology is heterogeneous, most cases are caused by variants in the genes encoding components of the cardiac sarcomere, which are inherited as an autosomal dominant trait. In recent years, there has been a paradigm shift in the role of clinical screening and predictive genetic testing in children with a first-degree relative with HCM, with the recognition that phenotypic expression can, and often does, manifest in young children and that familial disease in the paediatric age group may not be benign. The care of the child and family affected by HCM relies on a multidisciplinary team, with a key role for genomics. This review article summarises current evidence in clinical and genetic screening for hypertrophic cardiomyopathy in paediatric relatives and highlights aspects that remain to be resolved.

/pdf/clinical-and-genetic-screening-for-hypertrophic-1b8w42cc.pdf

Clinical and Genetic Screening for Hypertrophic Cardiomyopathy in Paediatric Relatives: Changing Paradigms in Clinical Practice

BACKGROUND
We assessed the awareness of multidisciplinary healthcare professionals of the challenges related to implementation of molecular autopsy (MA) for sudden cardiac death (SCD) among children and young adults.Methods and Results: We conducted 11 focus groups with 31 multidisciplinary healthcare professionals, and categorized them into 2 themes: values, and challenges of MA implementation. The participants recognized 2 different values of MA: discovering the unknown cause of SCD, and SCD prevention among family members of victims. The coexistence of these values makes the MA process and role of professionals more complex. Participants were concerned about the psychological burden for bereaved family members and mentioned challenges in each process of the MA delivery system: obtaining consent, cause of death investigation, disclosing results, and preventive intervention.


CONCLUSIONS
MA is a valuable procedure both in terms of forensic and preventive medicine. However, the dual meanings and complex characteristics of genetic information is a potential source of concern and confusion among healthcare professionals as well as bereaved family members. Increasing awareness among healthcare professionals of the MA process is essential for connecting all related areas of expertise.

Implementation of Molecular Autopsy for Sudden Cardiac Death in Japan　- Focus Group Study of Stakeholders.

European Heart Rhythm Association (EHRA)/Heart Rhythm Society (HRS)/Asia Pacific Heart Rhythm Society (APHRS)/Latin American Heart Rhythm Society (LAHRS) Expert Consensus Statement on the state of genetic testing for cardiac diseases

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European Heart Rhythm Association (EHRA)/Heart Rhythm Society (HRS)/Asia Pacific Heart Rhythm Society (APHRS)/Latin American Heart Rhythm Society (LAHRS) Expert Consensus Statement on the state of genetic testing for cardiac diseases