Patient baseline characteristics
| VT group (n=58) | VF group (n=44) | p Value | |
|---|---|---|---|
| Continuous data are mean (SEM). | |||
| *The only significant differences. | |||
| ES, ventricular extrastimuli delivered at programmed electrical stimulation; LV, left ventricle; VF, ventricular flutter or fibrillation; VT, ventricular tachycardia. | |||
| Age (years) | 65.8 (10.9) | 62.54 (10.9) | 0.14 |
| Men (%) | 91.3 | 81.8 | 0.23 |
| Follow up (months) | 22.1 (11.1) | 19.9 (11.6) | 0.33 |
| LV ejection fraction (%) | 30.1 (8.6) | 32.8 (8.0) | 0.13 |
| β Blocker (%) | 72.4 | 72.7 | 1.0 |
| Antiarrhythmic medication (%) | 32.8 | 22.7 | 0.19 |
| Coronary heart disease (%) | 81.0 | 81.8 | 1.0 |
| Idiopathic dilated cardiomyopathy (%) | 15.5 | 11.4 | 0.77 |
| Other cardiac disease (%) | 3.4 | 6.8 | 0.65 |
| Diabetes (%) | 22.4 | 22.7 | 1.0 |
| Induction with one to two ES (%) | 50 | 34.1 | 0.1 |
| Induction with three ES (%) | 50 | 65.9 | |
| Reason for ICD implantation (%) | |||
| Primary prevention | 55.2 | 54.5 | 1.0 |
| History of cardiac arrest | 13.8 | 31.8 | 0.02* |
| History of syncope | 8.6 | 11.4 | 0.74 |
| History of sustained VT | 22.4 | 2.3 | 0.003* |