Table 2 Baseline characteristics
Patient characteristic | All patients (n = 111) |
|---|---|
Male, n (%) | 71 (64%) |
Age at baseline ECG (years) | 43 (30–56) |
Systolic blood pressure (mmHg) | 120 ± 19 |
Diastolic blood pressure (mmHg) | 76 ± 9 |
Heart rate (bpm) | 65 (57–74) |
Body mass index (kg/m2) | 24.3 ± 3.2 |
Medication | |
Amiodarone, n (%) | 17 (15%) |
Beta-blocker, n (%) | 47 (42%) |
Sotalol, n (%) | 13 (12%) |
12-lead surface ECG | |
Epsilon waves in V1, V2, or V3 | 21 (19%) |
Minor ECG depolarization criteria (2010 TFC) | 25 (23%) |
Terminal activation duration (ms) | 52 (43–64) |
Major ECG repolarization criteria (2010 TFC) | 37 (33%) |
Minor ECG repolarization criteria (2010 TFC) | 21 (19%) |
TWI in inferior leads | 38 (34%) |
TWI in V4, V5, or V6 | 43 (39%) |
Number of leads with TWI | 4.5 ± 2.5 |
Number of precordial leads with TWI | 2.6 ± 1.9 |
QRS duration (ms) | 111 (100–116) |
Corrected QT duration (ms) | 444 (426–480) |
Transthoracic echocardiography | |
Patients with RV regional wall motion abnormalities | 85 (77%) |
1 RV region involved | 25 (23%) |
≥2 RV regions involved | 56 (50%) |
Patients with LV involvement | 15 (14%) |