Characteristics of 13 Male Patients Who Underwent 123I-MIBG Scans Before Radiofrequency Ablation of Drug-Refractory VT
| Patient characteristic | Value |
| Cardiomyopathy (n) | |
| ICM | 9 (69%) |
| NICM | 4 (31%) |
| Age at time of ablation (y) | 62 |
| Ejection fraction (%) | |
| Median | 30 |
| Q1–Q3 | 56–73 |
| Presence of ICD at time of ablation (n) | 13 (100%) |
| Prior ablations (n) | 3 (23.1%) |
| Comorbidities (n) | |
| Diabetes | 5 (38.4%) |
| Hypertension | 10 (76.9%) |
| Hyperlipidemia | 7 (53.8%) |
| Atrial fibrillation | 3 (23.0%) |
| Medications (n) | |
| ACEI/ARB | 11 (84.6%) |
| β blocker | 11 (84.6%) |
| Aldosterone antagonist | 3 (23.0%) |
| Amiodarone | 11 (84.6%) |
| Other antiarrhythmic drugs | 3 (23.0%) |
ACEI = angiotensin-converting-enzyme inhibitor; ARB = angiotensin receptor blocker.