Variables | Total (n = 36) | Non-PICM (n = 30) | PICM (n = 6) | p-value |
Electrical dyssynchrony |
|
|
|
|
QRS duration ≥130 ms | 31 (86.1%) | 26 (86.7%) | 5 (83.3%) | 0.829 |
Mechanical dyssynchrony |
|
|
|
|
IVMD ≥40 ms | 8 (22.9%) | 6 (20.7%) | 2 (33.3%) | 0.516 |
LVPEP ≥140 ms | 15 (42.9%) | 11 (37.9%) | 4 (66.7%) | 0.207 |
SPWMD ≥130 ms | 4 (11.8%) | 2 (7.1%) | 2 (33.3%) | 0.071 |
RV paced (%) |
|
|
|
|
≥20% RV paced | 20 (55.6%) | 14 (46.7%) | 6 (100.0%) | 0.024 |
≥40% RV paced | 18 (50.0%) | 12 (40.0%) | 6 (100.0%) | 0.019 |
Pre-procedural LVEF | 65.2 ± 13.0 | 66.2 ± 13.4 | 66.1 ± 9.7 | 0.993 |
Post-procedural LVEF at 3 months | 63.0 ± 15.0 | 65.6 ± 14.7 | 49.7 ± 8.1 | 0.015 |
Post-procedural LVEF <55% | 9 (25.0%) | 5 (16.7%) | 4 (66.7%) | 0.025 |
Difference between pre and post LVEF | 3.1 ± 8.4 | 0.5 ± 5.9 | 16.4 ± 5.8 | <0.001 |
Heart failure | 10 (27.8%) | 7 (23.3%) | 3 (50.0%) | 0.317 |