Table 1.
Baseline population characteristics
| Overall (N = 96) | |
|---|---|
| Age, y, mean (min–max) | 59 (30–83) |
| Male sex | 75 (78.1) |
| Ischemic etiology | 53 (55.2) |
| LBBB | 49 (51.0) |
| Permanent AF | 10 (10.4) |
| LVEF, % | 27.7 ± 5.1 |
| MR grade (echo) | |
| Absent/trivial | 30 (31.3) |
| Mild | 34 (35.4) |
| Moderate | 24 (25.0) |
| Severe | 8 (8.3) |
| NYHA class | |
| I | 8 (8.3) |
| II | 28 (29.2) |
| III | 54 (56.3) |
| IV | 6 (6.2) |
| Secondary prevention | 12 (12.5) |
| Implanted ICD device | |
| Single chamber | 51 (53.1) |
| Medtronic Virtuoso VR | 16 |
| Medtronic Virtuoso II VR | 13 |
| Medtronic Maximo | 9 |
| Medtronic Onyx | 7 |
| Sorin Ovatio | 3 |
| Sorin Paradym | 3 |
| Dual chamber | 2 (2.1) |
| Medtronic Virtuoso DR | 2 |
| CRT | 43 (44.8) |
| Medtronic Concerto | 20 |
| Medtronic Consulta | 18 |
| Medtronic Insync Maximo | 2 |
| Medtronic Insync Sentry | 2 |
| Medtronic Protecta | 1 |
Abbreviations: AF, atrial fibrillation; CRT, cardiac resynchronization therapy; echo, echocardiography; ICD, implantable cardioverter‐defibrillator; LBBB, left bundle branch block; LVEF, left ventricular ejection fraction; max, maximum; min, minimum; MR, mitral regurgitation; NYHA New York Heart Association; SD, standard deviation.
Data are presented as n (%) or mean ± SD unless otherwise noted.