Patient Characteristics
| Characteristic | Data |
|---|---|
| Mean age (±SD) at time of ablation | 63 ± 11 y |
| Sex (male) | 46 (82%) |
| Mean ejection fraction (±SD) | 29% ± 12% |
| Ischemic | |
| Previous myocardial infarction (history, electrocardiography, or cardiac imaging) | 56 (100%) |
| Bypass graft | 20 (36%) |
| Coronary stenting | 36 (64%) |
| NYHA II–III heart failure | 25 (45%) |
| Diabetes | 17 (30%) |
| Hypertension | 30 (54%) |
| ICD at time of ablation | 35 (63%) |
| Severe PET defect | |
| Inferior (inferolateral and inferoseptal) | 38 (70%) |
| Anterior (anteroseptal and anterolateral) | 12 (23%) |
| Apical | 3 (3.5%) |
| Anterior and inferior | 3 (3.5%) |
| EAM dense scar | 53 (97%) |
| Antiarrhythmic drugs | β-blockers (52 [93%]), amiodarone (46 [82%]), sotalol (5 [9%]) |
NYHA = New York Heart Association; ICD = implantable cardioverter–defibrillator.