Cardiac channelopathies in pediatrics: a genetic update

Cardiac channelopathies are a group of inherited syndromes that can cause malignant arrhythmias and sudden cardiac death, particularly in the pediatric population. Today, a 12-lead electrocardiogram is the most effective tool to diagnose these diseases. Incomplete penetrance and variable expressivit...

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Bibliographic Details
Authors: Martínez-Barrios, Estefanía; Campuzano Larrea, Oscar; Greco, Andrea; Cruzalegui, José; Sarquella Brugada, Georgia
Format: Article
Status:Accepted version
Publication date:2024
Country:España
Institution:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:dnet:recercat____::3e3342f382776741b1648c6a30880a04
Online Access:http://hdl.handle.net/10256/28672
https://hdl.handle.net/10256/28672
Access Level:Open access
Keyword:Mort sobtada
Sudden death
Arítmia
Arrhythmia
Cor -- Malalties -- Aspectes genètics
Heart -- Diseases -- Genetic aspects
Description
Summary:Cardiac channelopathies are a group of inherited syndromes that can cause malignant arrhythmias and sudden cardiac death, particularly in the pediatric population. Today, a 12-lead electrocardiogram is the most effective tool to diagnose these diseases. Incomplete penetrance and variable expressivity are hallmarks of these syndromes. Some of these malignant entities may remain hidden and only a trigger such as exercise, emotions or fever can unmask the electrical pattern to diagnose the disease. Sudden cardiac death may be the first manifestation of any of these syndromes. The use of complementary tests that allow early diagnosis is strongly recommended, among which we find: pharmacological provocations, exercise tests, and genetic analysis. Genetic testing makes it possible to unravel the origin of the disease, and also identify family members who carry the harmful genetic defect and are therefore at risk. One of the main challenges in this area is the large number of genetic variants of uncertain significance, which prevent effective translation into clinical practice. Early identification of the pediatric population at risk and adequate risk stratification are crucial to adopting personalized preventive measures that reduce the risk of lethal episodes in this population