[Epidemiology of early repolarization pattern in Maghreb]
W Amara1, S A Bouallouche1, A Rezoug2
1Unité de rythmologie, GHI Le Raincy-Montfermeil, 10, rue du Gl Leclercq, 93370 Montfermeil, France.
Annales De Cardiologie Et D'Angeiologie
|October 21, 2017
Summary
Early repolarization variant (ERV) is common in young Algerians. This finding, prevalent in inferolateral leads, may be linked to ethnic factors or Brugada syndrome, warranting further investigation.
Area of Science:
- Cardiology
- Electrophysiology
- Public Health
Background:
- Early repolarization variant (ERV) in inferolateral leads is linked to ventricular fibrillation risk.
- Previous studies on ERV prevalence and risk factors focused on Western populations.
- The prevalence of ERV in the Maghreb region remains largely unknown.
Purpose of the Study:
- To determine the prevalence of ERV in a young Algerian population.
- To identify potential risk factors associated with ERV in this demographic.
- To compare ERV findings in Algeria with those reported in occidental countries.
Main Methods:
- A population of 441 healthy Algerian subjects underwent 12-lead electrocardiography.
- ERV was identified and stratified by three cardiologists based on J-point elevation and QRS characteristics.
- Data analysis focused on prevalence rates and associations with demographic and clinical factors.
Main Results:
- The inferolateral ERV pattern was observed in 12.4% of subjects.
- Malignant ERV (>2mm) was present in 5% of individuals with ERV.
- ERV was more common in younger males, those with bradycardia, and a specific T wave pattern in lead V1.
Conclusions:
- ERV is a frequent finding in young, healthy Algerians.
- The higher prevalence may be attributed to the young age of the cohort rather than racial differences.
- The observed T wave patterns in V1 may indicate ethnic particularities or a phenotypic link to Brugada syndrome.
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