Clinical events | Overall (n 195) | Quadripolar group (n 99) | Bipolar group (n 96) | p value |
---|---|---|---|---|
CRT-d responders rate (%) | 117 (60%) | 61 (61.6%) | 56 (58%) | 0.27 |
Phrenic nerve stimulation | 23 (11.8%) | 5 (5%) | 18 (18.7%) | 0.007* |
Catheter displacement | 10 (5.1%) | 1 (1%) | 9 (9.4%) | 0.018* |
Re-interventions | 10 (5.1%) | 1 (1%) | 9 (9.4%) | 0.018* |
Hospitalizations for HF worsening | 39 (20%) | 15 (15.2%) | 24 (25%) | 0.046* |
Stroke | 4 (2%) | 2 (2%) | 2 (2%) | 0.62 |
AF n | 21 (10.8%) | 7 (7%) | 16 (16.7%) | 0.019* |
VT n | 51 (26.1%) | 25 (25.2%) | 26 (27.1%) | 0.5 |
ICD shocks | 27 (13.8%) | 13 (13.1%) | 14 (14.6%) | 0.51 |
Cardiac deaths | 9 (5.6%) | 4 (4%) | 5 (5.2%) | 0.43 |
All cause deaths | 12 (6.2%) | 5 (5%) | 7 (7.3%) | 0.33 |
Stroke | 5 (2.6%) | 2 (2%) | 3 (3.1%) | 0.36 |