Sudden cardiac death in J wave syndrome with short QT associated to a novel mutation in Nav 1.8 coding gene SCN10A: First case report for a possible pharmacogenomic role.
J Electrocardiol
; 51(5): 809-813, 2018.
Article
em En
| MEDLINE
| ID: mdl-30177317
ABSTRACT
INTRODUCTION:
Sudden cardiac death is an important cause of mortality in the general population. It represents an important challenge for clinicians, often being the only symptom of a broad spectrum of cardiac pathologies and inherited heart conditions. Early repolarization syndrome and Brugada syndrome are part of the wider "J-wave" syndrome, which may also include the short QT syndrome as a third factor of an ionic channel imbalance in the arrhythmogenic landscape. CASE PRESENTATION We describe the case of a woman struck down by sudden cardiac death, with short QT and early repolarization, in which we found an extremely rare and putatively pathogenic heterozygous variant in the SCN10A gene. Variants involving SCN10A, which encodes a voltage-gated sodium channel, were already associated with alterations of cardiac conduction parameters and the cardiac rhythm disorder, thereby influencing the cardiac physiology and predisposing to arrhythmia.CONCLUSION:
We underline the role of genetic predisposition to sudden cardiac death and, for the first time, suggest a possible environmental effect, such as a pharmacological therapy in the setting of sudden death, with the purpose to increase awareness in clinical practice.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Arritmias Cardíacas
/
Morte Súbita Cardíaca
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Mutação de Sentido Incorreto
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Canal de Sódio Disparado por Voltagem NAV1.8
Tipo de estudo:
Risk_factors_studies
Limite:
Female
/
Humans
/
Middle aged
Idioma:
En
Revista:
J Electrocardiol
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Itália