Effect of QRS duration on echocardiographically derived parameters
| Echocardiographic parameter | QRS duration ≤120 ms | QRS duration >120 ms | p Value |
|---|---|---|---|
| IVRT, isovolumic relaxation time; LA, left atrial dimension; LVCT, isovolumic left ventricular contraction time; LVEDD, left ventricular end diastolic diameter; LVESD, left ventricular end systolic diameter. | |||
| LVESD | 4.8 (1.4) | 5.5 (1.1) | 0.1 |
| LVEDD | 5.9 (1.4) | 6.8 (0.9) | 0.03 |
| LA | 3.9 (0.7) | 4.2 (0.9) | 0.3 |
| IVRT | 75 (26) | 39 (32) | <0.0001 |
| LVCT | 86 (19) | 113 (54) | 0.03 |