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August 30, 2021Cardiology & Vascular ResearchOpen Access

Genetics of Sudden Cardiac Death, the Channelopathies: Today's Perspective and the Future

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Key result

Channelopathies drive ~10% of sudden cardiac deaths and require genotype-specific management.

Why the study?

Channelopathies constitute a significant proportion of sudden cardiac death worldwide, prompting a review of the genetic basis of primary electric disorders to decode pathophysiology and aid prevention.

Design

Review

Authors

AAAbdullah AlabdulgaderInstitute of Genetics and Cancer

Discussion

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Implication

Supports genetic testing in unexplained SCD cases; leaves open validation of genotype-guided therapies in prospective studies.

Structured PICO

P
Population
Patients with cardiac channelopathies (including Long QT Syndrome, Brugada syndrome, short QT syndrome, Early Repolarization Syndrome, and catecholaminergic polymorphic ventricular tachycardia) at risk for sudden cardiac death.

Understanding the genetic details of channelopathies improves knowledge and decodes the pathophysiology of malignant arrhythmias to aid in the prevention of sudden cardiac death.

Limitations

  • Around 80% of Brugada syndrome cases remain genetically unknown.
  • Growing number of variants of unknown significance (VUS) complicates risk stratification.
  • Paucity of positive genetic testing in affected individuals with Short QT Syndrome.

Cite This Study

Abdullah Alabdulgader (2021) conducted a review in Channelopathies and Sudden Cardiac Death. Channelopathies, primarily caused by genetic mutations in ion channels, account for approximately 10% of sudden cardiac deaths worldwide and require genotype-specific approaches for management.

synapsesocial.com/papers/6a0e594ea7f61df77cc841fahttps://doi.org/10.33425/2639-8486.1115
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Also Consider

Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Long QT syndrome, Brugada syndrome, and conduction system disease are linked to a single sodium channel mutation2002 · 22 citations
  2. 2Testing the burden of rare variation in arrhythmia-susceptibility genes provides new insights into molecular diagnosis for Brugada syndrome2015 · 139 citations
  3. 3The genetic basis for inherited forms of sinoatrial dysfunction and atrioventricular node dysfunction2015 · 37 citations