Table 1.
Baseline characteristics
| Total patients (N = 25) | Partial septal LGE (n = 10) | Full-length septal LGE (n = 15) | P value | |
|---|---|---|---|---|
| Age (yr) | 64 ± 8 | 66 ± 7 | 63 ± 9 | .38 |
| Male | 23 (92) | 9 (90) | 15 (100) | .21 |
| LVEF (%) | 39 (24–47) | 43 (35–51) | 30 (22–45) | .19 |
| Intrinsic QRS width (ms) | 133 (113–188) | 114 (108–133) | 156(123–210) | .071 |
| Coronary artery disease | 4(16) | 3(30) | 1(7) | .27 |
| Hypertension | 10 (40) | 4 (40) | 6(40) | 1 |
| Diabetes mellitus | 7(28) | 3(30) | 4(27) | 1 |
| Atrial fibrillation | 11 (44) | 3(30) | 8(53) | .41 |
| Cardiac device | ||||
| ICD | 14 (56) | 7(70) | 7(47) | .41 |
| CRT-D | 10 (40) | 2 (20) | 8(53) | .21 |
| VT storm | 8(32) | 2 (20) | 6(40) | .4 |
| Amiodarone use | 20 (80) | 6 (60) | 14 (93) | .12 |
| Other antiarrhythmics use | 12 (48) | 4 (40) | 8(53) | .69 |
| Beta-blocker use | 23 (92) | 9 (90) | 14 (93) | 1 |
| Aortic valve surgery | 2(8) | 0(0) | 2(14) | .5 |
| Previous VT ablation | 12 (48) | 4 (40) | 8(53) | .69 |
| 3 | 3(12) | 1(10) | 2(13) | |
| 2 | 3(12) | 1(10) | 2(13) | |
| 1 | 6(24) | 2 (20) | 4(27) | |
| 0 | 13 (52) | 6 (60) | 7(47) | |
| Clinical VT | ||||
| Right bundle branch block | 12 (48) | 4(40) | 8(53) | .69 |
| Inferior axis | 18 (72) | 7(70) | 11 (73) | 1 |
| Left axis | 12 (48) | 6 (60) | 6(40) | .43 |
| Epicardial access | 9(36) | 3(30) | 6(40) | .69 |
Values are given as n (%), mean ± SD, or median (interquartile range) unless otherwise indicated.
CRT-D = cardiac resynchronization therapy–defibrillator; ICD = implantable cardioverter-defibrillator; LGE = late gadolinium enhancement; LVEF = left ventricular ejection fraction; VT = ventricular tachycardia.