Table 1 Baseline clinical and procedural characteristics of the study subjects
| Origin of ventricular arrhythmia | |||||||
|---|---|---|---|---|---|---|---|
|
Total cohort (n = 30) |
RVOT (n = 24) |
LVOT (n = 6) | P value | ||||
| Clinical variables | |||||||
| Age, years | 52.4 ± 12.6 | 51.5 ± 13.6 | 56.2 ± 7.7 | 0.428 | |||
| Female (%) | 16 (53.3) | 12 (50.0) | 4 (66.7) | 0.657 | |||
| BMI | 25.2 ± 3.9 | 25.2 ± 4.2 | 25.4 ± 3.1 | 0.912 | |||
| LV EF (%) | 56.2 ± 8.3 | 55.1 ± 8.6 | 60.6 ± 5.8 | 0.191 | |||
| LV diameter (mm) | 50.0 ± 6.9 | 50.3 ± 7.5 | 48.8 ± 4.0 | 0.673 | |||
| Holter monitoring | |||||||
| Average HR (min) | 74.0 ± 8.7 | 74.2 ± 9.0 | 72.0 ± 7.1 | 0.743 | |||
| PVC burden | 15.4 ± 11.9 | 13.3 ± 10.4 | 35.5 ± 2.5 | 0.008 | |||
| Non-sustained VT (%) | 28 (93.3) | 22 (91.6) | 6 (100.0) | > 0.999 | |||
| Sustained VT (%) | 10 (33.3) | 5 (20.8) | 5 (83.3) | 0.009 | |||
| R/S transition in the precordial leads during VA | < 0.001 | ||||||
| V1–V2 | 1 (4.2) | 5 (83.3) | |||||
| V3 | 5 (20.8) | 1 (16.7) | |||||
| V4–V6 | 18 (75.0) | 0 | |||||
| Procedural variables | |||||||
| Origin of ventricular arrhythmia (n) | Septum | Ant | 10 | LCC | 4 | ||
| Mid | 3 | ||||||
| Post | 4 | ||||||
| Free wall | Ant | 4 | RCC | 2 | |||
| Mid | 0 | ||||||
| Post | 3 | ||||||
| Fluoroscopy time (min) | 45.5 ± 32.0 | 33.9 ± 23.3 | 89.4 ± 20.1 | < 0.001 | |||