Table 1.
Clinical Characteristics and Parameters between the Three Groups
| RVOT‐VT ARVD BrS (n = 20) | ARVD (n = 10) | BrS (n = 10) | P‐Value | |
|---|---|---|---|---|
| Age (y/o) | 49.4 ± 13.0 | 48.4 ± 11.1 | 41.9 ± 16.9 | 0.360 |
| Male | 8 | 4 | 10 | 0.006 |
| RVD | 26.6 ± 3.3 | 47.2 ± 6.2 | 29.6 ± 5.1 | <0.001 |
| LVEF | 67.6 ± 6.4 | 48.4 ± 12.6 | 67.0 ± 7.6 | <0.001 |
| Family history | 0 | 2 | 3 | 0.569 |
| Syncope | 5 | 2 | 4 | 0.569 |
| SAECG | ||||
| f‐QRS (ms) | 106.6 ± 7.7 | 137.1 ± 23.6 | 121.1 ± 22.2 | <0.001 |
| RMS40 (μV) | 19.2 ± 7.6 | 6.3 ± 3.2 | 15.8 ± 16.1 | 0.006 |
| LAS40 (ms) | 31.0 ± 5.7 | 60.4 ± 21.6 | 43.4 ± 18.8 | <0.001 |
| LP | 0 | 10 | 7 | <0.001 |
| WTECG | ||||
| P20 | 1082.0 ± 99.2 | 1000.6 ± 123.7 | 1082.5 ± 83.9 | 0.107 |
| P50 | 805.2 ± 100.1 | 730.0 ± 147.6 | 851.0 ± 111.0 | 0.074 |
| P80 | 450.8 ± 67.1 | 546.7 ± 69.2 | 704.6 ± 38.3 | <0.001 |
| P100 | 301.4 ± 88.6 | 566.4 ± 77.4 | 501.4 ± 81.2 | <0.001 |
| P150 | 161.2 ± 56.3 | 570.0 ± 124.6 | 297.5 ± 83.9 | <0.001 |
Data are given as the mean ± standard deviation, number of patients and percent of the number in parentheses. RVOT‐VT = right ventricular outflow tract ventricular tachycardia; ARVC = arrhythmogenic right ventricular cardiomyopathy; BrS = Brugada syndrome; RVD = right ventricular diameter; WTECG = wavelet‐transformed ECG; SAECG = signal‐averaged ECG; f‐QRS = filtered QRS; RMS40= root mean square voltage of the terminal 40 ms; LAS40= low‐amplitude signals <40 μV; LP = late potentilal.