Clinical characteristics of patients
| WPW | AVJ | VT | Total | |
|---|---|---|---|---|
| Patients (n) | 144 | 29 | 6 | 179 |
| Radiofrequency procedures (n) | 181 | 29 | 6 | 216 |
| Male/female (n) | 97/47 | 17/12 | 5/1 | 118/61 |
| Mean (SD) age (years) | 38 (15) | 63 (11) | 46 (15) | 43 (17) |
| Structural heart disease (n) | ||||
| None | 137 | 12 | 5 | 154 |
| Ischaemic | 1 | 8 | 1 | 10 |
| Cardiomyopathy | 2 | 7 | 0 | 9 |
| Valvar | 3 | 0 | 0 | 3 |
| Other | 1 | 2 | 0 | 3 |
| Mean (SD) arrhythmia duration (years) | 14 (12) | 7 (5) | 10 (10) | 13 (11) |
| Mean (SD) antiarrhythmic drugs tried | 1.1 (0.8) | 1.8 (0.9) | 2.2 (0.8) | 1.3 (0.9) |
| Mean (SD) radiofrequency applications | 9 (9) | 12 (7) | 8 (6) | 10 (9) |
| Mean (SD) fluoroscopy time (min) | 58 (36) | 53 (18) | 61 (39) | 58 (34) |
| Mean (SD) procedure time (min) | 208 (70) | 158 (41) | 229 (76) | 202 (69) |
WPW, Wolff-Parkinson-White syndrome; AVJ, atrioventricular junctional ablation; VT, ventricular tachycardia.