Table 2 Clinical responders (n = 34) versus non‐responders (n = 26), clinical and echocardiographic variables before and 6 months after cardiac resynchronisation therapy implantation.
| Responders | Non‐responders | p Value | |
|---|---|---|---|
| NYHA class | |||
| Baseline | 3.1 (0.3) | 3.2 (0.4) | NS |
| Follow‐up | 1.9 (0.4)* | 2.7 (0.7) | <0.001 |
| 6 min walking (m) | |||
| Baseline | 287 (96) | 315 (116) | NS |
| Follow‐up | 441 (96)* | 316 (130) | <0.001 |
| QoL score | |||
| Baseline | 36 (14) | 37 (17) | NS |
| Follow‐up | 14 (10)* | 33 (17) | <0.001 |
| LVEF (%) | |||
| Baseline | 23 (7) | 24 (8) | NS |
| Follow‐up | 32 (9)* | 25 (9) | 0.01 |
| LVEDV (ml) | |||
| Baseline | 266 (93) | 219 (74) | NS |
| Follow‐up | 224 (93)* | 215 (88) | NS |
| LVESV (ml) | |||
| Baseline | 207 (85) | 170 (74) | NS |
| Follow‐up | 156 (77)* | 167 (85) | NS |
LVEDV, left ventricular end‐diastolic volume; LVEF, left ventricular ejection fraction; LVESV, left ventricular end‐systolic volume; NYHA, New York Heart Association; QoL, quality of life; TDI, tissue Doppler imaging; TSI, tissue synchronisation imaging.
Data are presented as mean (SD) or number (%).
*p<0.001 baseline vs follow‐up.