The Substrate of Sudden Death in Long-QT Syndrome is localized in the Epicardium
| Autor: | V. Borrelli, V. Santinelli, G. Ciconte, Gabriele Vicedomini, L. Anastasia, C. Pappone, E. Grant |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
congenital
hereditary and neonatal diseases and abnormalities medicine.medical_specialty Medical treatment business.industry Mortality rate medicine.medical_treatment Long QT syndrome Catheter ablation medicine.disease Sudden death Sudden cardiac death medicine.anatomical_structure Ventricle Internal medicine cardiovascular system medicine Cardiology Effective treatment cardiovascular diseases business |
| DOI: | 10.1101/2021.11.22.21266568 |
| Popis: | Despite significant advances in the prevention of cardiovascular diseases, sudden cardiac death (SCD) persists as a major public health problem. Among young and apparently healthy individuals, Long-QT syndrome (LQTS) represents a leading progenitor of SCD owing to fatal ventricular arrhythmia. Scientific understanding of this association has grown in recent years, and the mortality rate after LQTS diagnosis has significantly decreased. However, despite medical treatment advances, life-threatening ventricular arrhythmias still occur. Until now, no research has established the degree to which this inherited condition arises from an underlying arrhythmogenic electroanatomical substrate. Here, we present direct evidence showing that LQTS patients who survive spontaneous malignant arrhythmias harbor structural electrophysiological abnormalities localized in the epicardium of the right ventricle. We further show that the elimination of these abnormalities by means of catheter ablation successfully suppresses malignant arrhythmias, offering a new approach for the effective treatment of LQTS patients. |
| Databáze: | OpenAIRE |
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