Table 3 Univariate analysis: Response to cardiac resynchronization therapy (improvement of LVEF ≥ 5% at one year).
Response | Response (n = 27) | No Response (n = 29) | OR | 95% CI | P value |
|---|---|---|---|---|---|
Age | 64.0 ± 12.2 | 65.8 ± 12.2 | 0.99 | 0.95-1.03 | 0.58 |
Male gender | 18 (67%) | 25 (86%) | 0.32 | 0.09-1.20 | 0.09 |
CAD | 7 (26%) | 19 (66%) | 0.18 | 0.06-0.58 | 0.004 |
Atrial fibrillation | 4 (15%) | 7 (24%) | 0.55 | 0.14-2.13 | 0.38 |
Heart rate (bpm) | 76 ± 15 | 76 ± 16 | 1.00 | 0.97-1.04 | 0.89 |
SBP (mmHg) | 120 ± 20 | 119 ± 19 | 1.00 | 0.98-1.03 | 0.76 |
QRS width (ms) | 161 ± 21 | 150 ± 22 | 1.02 | 1.00-1.05 | 0.07 |
Left ventricle | Â | Â | Â | Â | Â |
EDV index (mL/m2) | 156 ± 46 | 177 ± 71 | 0.99 | 0.98-1.00 | 0.19 |
ESV index (mL/m2) | 111 ± 40 | 133 ± 63 | 0.99 | 0.98-1.00 | 0.13 |
EF (%) | 30.5 ± 8.5 | 26.5 ± 7.2 | 1.07 | 0.99-1.16 | 0.07 |
Mass index (g/m2) | 108 ± 26 | 118 ± 34 | 0.99 | 0.97-1.01 | 0.23 |
Mitral regurgitation | 1.1 ± 0.6 | 1.3 ± 0.8 | 0.58 | 0.27-1.27 | 0.17 |
LGE | 13 (48%) | 24 (83%) | 0.19 | 0.06-0.66 | 0.009 |
LGE (%) | 0 (0-7) | 13 (3-22) | 0.91 | 0.85-0.97 | 0.005 |
Myocardial infarction | 6 (22%) | 18 (62%) | 0.18 | 0.05-0.57 | 0.004 |
Right ventricle | Â | Â | Â | Â | Â |
EDV index (mL/m2) | 77 (67-104) | 83 (61-139) | 0.99 | 0.98-1.01 | 0.28 |
ESV index (mL/m2) | 36 (23-54) | 40 (31-96) | 0.99 | 0.98-1.00 | 0.10 |
EF (%) | 56 (45-63) | 44 (28-61) | 1.04 | 1.01-1.08 | 0.03 |
TAPSE (mm) | 15.3 ± 5.8 | 11.8 ± 4.2 | 1.15 | 1.03-1.29 | 0.02 |
Wall thickness (mm) | 3.3 ± 0.7 | 4.0 ± 1.0 | 0.42 | 0.21-0.84 | 0.02 |
PAP (mmHg) | 36.9 ± 8.5 | 40.5 ± 9.0 | 0.95 | 0.89-1.02 | 0.16 |