Table 3.
Differences between ERS and BrS.
| BrS | ERS | |
|---|---|---|
| Region most involved | RVOT | Inferior LV wall |
| Leads affected | V1–V3, V5, V6, II, III, aVF (inferior and lateral repolarization cases) | II, III, aVF, V4, V5, V6; I, aVL |
| Global Incidence | Asia BrS > ERS | Europe BrS = ERS (not confirmed) |
| Incidence of late potential in signal- averaged ECG | Higher | Lower |
| Prevalence of atrial fibrillation | Higher | Unknown |
| Effect of sodium channel blockers on surface ECG | Increased J-wave | Reduced J-wave |
| Structural changes, including mild fibrosis and reduced expression of Cx43 in RVOT | Higher in severe forms of the syndrome | Unknown |