Table 1 Patient characteristics at baseline and twelve months follow-up
Variable | Total group (n = 57) | Responders (n = 43) | Non-responders (n = 14) | P-value |
|---|---|---|---|---|
Age (years) | 65 ± 10 | 63 ± 10 | 71 ± 9 | 0.013 |
Gender (n, % male) | 30 (53%) | 20 (47%) | 10 (71%) | 0.132 |
Etiology (n, % ICMP) | 13 (23%) | 5 (12%) | 8 (57%) | 0.001 |
ECG–QRS width (ms) | 176 (165–188) | 180 (168–194) | 169 (152–176) | 0.011 |
ECG–QRS morph (n, % LBBB) | 45 (79%) | 38 (88%) | 7 (50%) | 0.005 |
ECG–QRS area (µVs) | 138 (118–159) | 143 (126–168) | 115 (78–126) | 0.002 |
Echo–IVMD (ms) | 50 ± 29 | 58 ± 25 | 24 ± 24 |  < 0.001 |
Echo–apical rocking (n, %) | 39 (68%) | 34 (79%) | 5 (36%) | 0.006 |
CAVIAR score (points) | 3 ± 3 | 4 ± 2 | 0 ± 2 |  < 0.001 |
CMR–LVEDV (ml) | 283 (227—338) | 297 (231–380) | 256 (220–297) | 0.181 |
CMR–LVEF (%) | 28 ± 10 | 27 ± 10 | 30 ± 6 | 0.092 |
CMR–Scar size (% LV mass) | 1.3 (0.0–5.7) | 0.0 (0.0–2.7) | 5.7 (0.0–15.1) | 0.028 |
Echo–Change in LVESV after 12 months (%) | − 32 ± 27 | − 44 ± 18 | 4 ± 15 |  < 0.001 |
ECG–Change in QRS width after CRT (ms) | − 32 ± 28 | − 37 ± 26 | − 15 ± 29 | 0.017 |