| Responders | Non-responders | P value |
---|---|---|---|
N | 35 | 15 | Â |
Sex (male/female) | 23/12 | 12/3 | 0.31 |
Aetiology | 24 DCM | 7 DCM | 0.14 |
 | 11 ICM | 8 ICM |  |
QRS duration (ms) | 149 ± 20 | 141 ± 23 | 0.27 |
QRS morphology (LBBB/RBBB/IVCD) | 23/1/11 | 5/3/7 | 0.04 |
Number of patients with scar on CMR n(%) | 12 (34) | 9 (60) | 0.11 |
Scar burden on CMR (% of myocardium) in those patients with scar | 22.2 ± 13.0 | 29.4 ± 8.4 | 0.17 |
Volume change SDI (%) | 15.2 ± 6.2 | 8.5 ± 4.5 | <0.001 |
LV lead position | Â | Â | 0.20 |
Lateral | 17 | 4 | Â |
Posterolateral | 14 | 8 | Â |
Anterior | 2 | 3 | Â |
Posterior | 2 | 0 | Â |
LV lead in area with >50% transmural scar n (%) | 1(3) | 7(47) | <0.001 |