Variable | Patients with wide QRS width (≥ 120 ms) | Patients with narrow QRS width (< 120 ms) | P |
---|---|---|---|
Number of patients | 55 | 17 | − |
Age, yrs | 54 ± 15 | 62 ± 14 | 0.06 |
Gender, Male (%) | 37 (67%) | 10 (59%) | 0.07 |
Ischemic Heart Disease (%) | 12 (23%) | 8 (47%) | 0.09 |
QRS width, ms | 148 ± 24 | 95 ± 15 | < .001 |
Cardiac magnetic resonance | |||
LV end-diastolic volume, cm3 | 188 ± 73 | 259 ± 110 | 0.003 |
LV end-systolic volume, cm3 | 103 ± 71 | 187 ± 98 | < 0.001 |
Ejection fraction,% | 49 ± 16 | 30 ± 17 | < 0.001 |
Feature Tracking CMR Anteroseptal to posterior delay | 230 ± 94 | 77 ± 92 | < 0.001 |
Speckle tracking Echocardiography Anteroseptal to posterior delay | 242 ± 101 | 75 ± 88 | < 0.001 |