The Brugada Syndrome as a Cause of Sudden Death. Diagnostics and Clinical Manifestations in Children

Kardiologiia ◽  
2016 ◽  
Vol 10_2016 ◽  
pp. 63-71
Author(s):  
I.M. Miklashevich Miklashevich ◽  
M.A. Shkolnikova Shkolnikova ◽  
2016 ◽  
Vol 26 (6) ◽  
pp. 1044-1055 ◽  
Author(s):  
M. Cecilia Gonzalez Corcia ◽  
Carlo de Asmundis ◽  
Gian-Battista Chierchia ◽  
Pedro Brugada

AbstractBrugada syndrome is an inherited arrhythmogenic disorder, characterised by coved-type ST-segment elevation in the right precordial leads, and is associated with increased risk of sudden death. It is genetically and clinically heterogeneous, presenting typically in the fourth or fifth decade of life. The prevalence of Brugada syndrome in the paediatric population is low compared with the adult population. Interestingly, over the last several years, there has been growing evidence in the literature of onset of the disease during childhood. Most of the paediatric cases reported in the literature consist of asymptomatic Brugada syndrome; however, some patients manifest the disease at different regions of the cardiac conduction system at a young age. Early expression of the disease can be affected by multiple factors, including genetic substrate, hormonal changes, and still unknown environmental exposures. The initial manifestation of Brugada syndrome in children can include sinus node dysfunction and atrial arrhythmias. Brugada syndrome can also manifest as ventricular arrhythmias leading to sudden death at an early age. In symptomatic children, performance of the ajmaline test by an experienced team can be safely used as a diagnostic tool to unmask latent Brugada syndrome. Defining indications for an implantable cardioverter defibrillator in children with the diagnosis of Brugada syndrome remains challenging. Given the rarity of the syndrome in children, most paediatric cardiologists will only rarely see a young patient with Brugada syndrome and there is still no universal consensus regarding the optimal management approach. Care should be individualised according to the specific clinical presentation, taking into account the family history, genetic data, and the family’s specific preferences.


Heart Rhythm ◽  
2021 ◽  
Author(s):  
Antonio Curcio ◽  
Alberto Malovini ◽  
Andrea Mazzanti ◽  
Mirella Memmi ◽  
Patrick Gambelli ◽  
...  

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Hiroya Matsumura ◽  
Yukiko Nakano ◽  
Masaaki Toshishige ◽  
Hidenori Ochi ◽  
Takehito Tokuyama ◽  
...  

BACKGROUND: The common SCN5A polymorphism H558R has been reported as a genetic modulator that improves sodium channel activity in mutated channels by repairing abnormal channel gating kinetics and membrane trafficking. We investigated the possible effects of H558R on the clinical manifestations of Brugada syndrome. METHODS: The study population comprised 95 Brugada syndrome patients (mean age 42 ± 14 years, 91 males and 4 females) and 1,875 normal controls. H558R was genotyped by TaqMan assay in all subjects. The SCN5A gene mutation was screened by resequencing. We evaluated the PR, QRS, and QTc intervals from lead II and the J-point amplitude from leads V1 and V2 of a 12-lead electrocardiogram (ECG). We also evaluated signal-averaged ECG and electrophysiological parameters. RESULTS: H558R was less frequent in patients with Brugada syndrome than normal controls (4.7% vs. 10.3%, P = 0.01). Surprisingly, H558R (minor allele A) was not observed in patients with Brugada syndrome without ventricular fibrillation (VF; n = 60), whereas 7.5% of patients with VF had H558R (n = 35). Nonsynonymous mutation of SCN5A was not detected in patients with H558R. The H558R carriers showed lower J-point elevation in lead V1 than noncarriers (1.8 ± 0.4 vs. 3.3 ± 0.3 mV, P = 0.04). Other parameters in the 12-lead and signal-averaged ECG were similar in patients with and without H558R. CONCLUSION: We demonstrated that the H558R polymorphism was a strong protective genetic modulator even in Brugada syndrome patients without SCN5A mutation.


2010 ◽  
Vol 56 (19) ◽  
pp. 1585-1588 ◽  
Author(s):  
Sami Viskin ◽  
Raphael Rosso

2008 ◽  
Vol 52 (19) ◽  
pp. 1567-1573 ◽  
Author(s):  
Begoña Benito ◽  
Andrea Sarkozy ◽  
Lluis Mont ◽  
Stephan Henkens ◽  
Antonio Berruezo ◽  
...  

2019 ◽  
Vol 124 (11) ◽  
pp. 1797-1802
Author(s):  
Shayna McEnteggart ◽  
N.A. Mark Estes

2005 ◽  
Vol 25 (Suppl4) ◽  
pp. 27-30
Author(s):  
Shin-ichiro Morimoto ◽  
Akihisa Uemura ◽  
Shinya Hiramitsu ◽  
Masatsugu Ohtsuki ◽  
Shigeru Kato ◽  
...  

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