Key result
Genetic findings have advanced the understanding and gene-specific management of inherited arrhythmogenic diseases like long-QT syndrome, though the genotype-phenotype relationship remains complex.
This review highlights the complexity of genotype-phenotype correlations in inherited arrhythmogenic diseases and proposes future research directions.
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Supports gene-specific management in long-QT syndrome; leaves open precise genotype-phenotype mapping for routine use.
Twelve years after the identification of the molecular bases of the long-QT syndrome, it is now possible to express some considerations on the impact that genetic findings have had in the understanding of inherited arrhythmogenic diseases. Along with the excitement for the emerging data on genotype/phenotype correlation and for the development of the first recommendations for gene-specific management of patients, it is also important to acknowledge the unexpected complexity that has emerged. The focus of this article is to analyze the elusive aspects of the relationship between genetic defects and clinical manifestations and to propose some research directions that may provide the needed answers to move forward in the understanding of the genetics of heart rhythm abnormalities.
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Silvia G. Priori (2004) conducted a review in Inherited arrhythmogenic diseases. Genetic findings have advanced the understanding and gene-specific management of inherited arrhythmogenic diseases like long-QT syndrome, though the genotype-phenotype relationship remains complex.
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