Table 2.
Electrocardiographic, echocardiographic magnetic resonance imaging, and genetic screening findings of patients
| n | % | |
|---|---|---|
| Electrocardiographic findings | ||
| Epsilon wave | 13 | 68 |
| Low QRS voltage | 13 | 68 |
| ≥14 years T wave inversion in V1-3 | 10 | 100 |
| >500 PVC/ 24 h | 15 | 79 |
| PVC morphology | ||
| Monomorphic | 8 | 53 |
| Left branch block inferior axis | 6 | 40 |
| Left branch block superior axis | 2 | 13 |
| Polymorphic | 7 | 47 |
| Undetermine PVC origine | 4 | 26 |
| Ventricular tachycardia | 9 | 45 |
| Echocardiographic findings | ||
| Patients with echocardiography findings | 17/19 | 89 |
| Right ventricular dysfunction | 6 | 31.5 |
| Right ventricular aneurysm | 13 | 68 |
| Hypokinetic area in right ventricle | 11 | 57.8 |
| RVOT aneurysm | 17 | 89 |
| Left ventricular involvement | 4 | 21 |
| RVOT diameter PSAX (mean±SD) | 35.9±9.9 mm | 31±9.8 mm/m2 |
| RVOT diameter PLAX (mean±SD) | 32±8.5 mm | 28±10 mm/m2 |
| MRI findings | ||
| Patients underwent MRI | 19 | 100 |
| ARVD criterias in MRI | ||
| Fibro-fatty infiltration of the right ventricle | 12 | 63 |
| Right ventricle/RVOT aneurysm | 13 | 68 |
| Hypokinetic area in right ventricle | 13 | 6 |
| Left ventricular involvement | 7 | 36.8 |
| RV end-diastolic volume (mean±SD) | 157±64 mL/m2 | |
| RV EF % (mean±SD) | 33±16 | |
| Genetic screening | 11 | 57.8 |
| Resulted | 6 | 54.5 |
| Pathological mutation | 4 | 36 |
| PKP2 gene mutation | 1 | 9 |
| DSG2 gene mutation | 2 | 18 |
| RYR2 gene mutation | 1 | 9 |
| No pathological mutation | 2 | 18 |
| Expected results | 5 | 45.5 |
ARVD - arrhythmogenic right ventricular dysplasia, MRI - magnetic resonance imaging, RV - right ventricle, RVOT - right ventricle outflow tract, PVC - premature ventricular contraction