Arrhythmias & electrophysiology

SCN5A gene variants and arrhythmic risk in Brugada syndrome: An updated systematic review and meta-analysis

Heart RhythmPublished Systematic review and meta-analysis

Pooled result · Major arrhythmic eventsResult — go to the resultOdds ratio 2.14 95% CI 1.53–2.99

Authors' conclusion

SCN5A+ BrS patients showed a worse clinical phenotype compared with SCN5A-. The pooled analysis demonstrated a significant association between SCN5A+ mutation status and the risk of major arrhythmic events in BrS patients.

Study context

Population
Patients with Brugada syndrome with SCN5A genetic testing and reported arrhythmic outcomes
Participants
3,568 patients17 studies
Comparison
SCN5A+ vs SCN5A- Brugada syndrome
Outcome
Major arrhythmic events
Methodological detailsPubMed and CENTRAL searched from inception to January 2024
  • PubMed and CENTRAL searched from inception to January 2024

Pooled result

As reported in the abstract

Odds ratio

2.14

95% CI 1.53–2.99

SCN5A+vs SCN5A-
OR 2.14 (95% CI 1.53–2.99)

Further pooled results

Clinical phenotype

SCN5A+ more frequently had spontaneous type 1 ECG, history of syncope and documented arrhythmias
Higher PQ and QRS intervals in SCN5A+

Original publication

SCN5A gene variants and arrhythmic risk in Brugada syndrome: An updated systematic review and meta-analysis. Heart Rhythm. Published 16 April 2024. doi:10.1016/j.hrthm.2024.04.047

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