Table 1.
Patient characteristics and comparison of clinical parameters
| All patients (n = 147) | Appropriate therapy(−) (n = 68) | Appropriate therapy(+) (n = 79) | P value | |
|---|---|---|---|---|
| Age, y | 59.2 ± 14.6 | 60.1 ± 15.2 | 58.5 ± 14.3 | .512 |
| Male, n (%) | 107 (72.8) | 47 (69.1) | 60 (75.9) | .353 |
| Underlying heart disease | ||||
| Ischemic/nonischemic | 50/97 | 24/44 | 26/53 | .897 |
| 34%/66% | 35%/65% | 33%/67% | ||
| Cause of implantation | ||||
| History of sustained VT, n (%) | 82 (55.8) | 26 (38.2) | 56 (70.9) | <.001 |
| History of CPA, n (%) | 65 (44.2) | 42 (61.8) | 23 (29.1) | <.001 |
| LVEF, % | 45.3 ± 15.2 | 48.7 ± 16.8 | 42.4 ± 13.1 | .014 |
| LVDd, mm | 55.2 ± 9.6 | 53.4 ± 10.0 | 56.8 ± 8.9 | .031 |
| BNP, pg/mL | 308.2 ± 399.2 | 327.9 ± 455.6 | 291.1 ± 345.3 | .592 |
| Follow‐up period, years | 3.2 ± 3.6 | 5.0 ± 4.0 | 1.6 ± 2.3 | |
| ICD/CRT‐D | 136/11 | 64/4 | 72/7 | .711 |
| 93%/7% | 94%/6% | 91%/9% | ||
| Cardiac death (SCD/pump failure) | 18 (4/13) | 6 (1/5) | 12 (3/9) | .315 |
BNP, brain natriuretic peptide; CPA, cardiopulmonary arrest; CRT‐D, cardiac resynchronization therapy with defibrillator; ICD, implantable cardioverter‐defibrillator; LVDd, left ventricular diastolic diameter; LVEF, left ventricular ejection fraction; SCD, sudden cardiac death; VT, ventricular tachycardia.