Prevalence of J-wave syndrome electrocardiographic patterns in a sample of Azerbaijan's general population

Abstract

Objective: To this date, there is no information regarding the prevalence of neither the early repolarization syndrome (ERS) nor the Brugada syndrome (BrS) electrocardiographic (ECG) patterns in Azerbaijan. Study Design and Setting: This is a retrospective study of ECG recordings obtained between 2011 and 2012 in one clinical center in Baku, Azerbaijan. The recordings were taken during routine check-ups of 1079 males and females of the general population, with an age range between 23 and 78 years (mean age 44 years). The presence of a J-wave in the lateral, inferior/inferolateral, right precordial, or all leads was evaluated by two independent cardiologists. Results: The J-wave ECG pattern was present in 66 participants (6.12%). The ERS pattern was present in 63 participants (5.84%), more specifically 1.4% – ERS Type 1, 4.4% – ERS Type 2, and 0% – ERS Type 3. The BrS pattern was present in three participants (0.27%), all of which had a Type 2 pattern. Conclusion: The J wave syndrome ECG pattern is not rare in Azerbaijan's general population. The prevalence of both the ERS and the BrS pattern is similar to existing reports from other countries.

Keywords

• brugada syndrome
• early repolarization
• j-point elevation
• j-wave syndromes
• sudden cardiac death