Key result
Molecular genetics improves diagnosis, risk stratification, and family screening in inherited cardiac arrhythmias.
Why the study?
Inherited cardiac arrhythmias are a major cause of sudden cardiac death without structural heart disease, and advances in molecular genetics have improved diagnosis and risk stratification.
Advances in molecular genetics have transformed inherited arrhythmias into molecularly defined diseases, enabling genotype-guided diagnosis, risk stratification, and postmortem evaluation of sudden unexplained death.
Supports genetic testing integration in arrhythmia care; extends mechanistic insights but leaves open prospective validation studies.
Inherited cardiac arrhythmias are a major cause of sudden cardiac death in individuals without structural heart disease. These conditions are primarily genetic, resulting from pathogenic variants affecting cardiac ion channels, calcium-handling proteins, intercellular junctions, and transcriptional regulators. While research has traditionally focused on ventricular syndromes such as long QT syndrome, Brugada syndrome, and catecholaminergic polymorphic ventricular tachycardia, atrial fibrillation-particularly early-onset disease-has been increasingly recognized as heritable, especially when affecting young individuals. Advances in molecular genetics have improved diagnosis, risk stratification, and family screening in these diseases as well as the possibility of postmortem evaluation of sudden unexplained death. This review summarizes the genetic basis and clinical implications of these inherited cardiac arrhythmias.
No takes yet. Share an insight, caveat, or question.
Ramón Brugada (2026) conducted a review in Inherited cardiac arrhythmias. Advances in molecular genetics for inherited cardiac arrhythmias have significantly improved diagnosis, risk stratification, family screening, and the postmortem evaluation of sudden unexplained death.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: