Comparison of Clinical, Angiographic, Echocardiographic, and SPECT Variables in Patients With Versus Those Without Significant LVEF Improvement on Follow-Up
| Variable | LVEF increase | ||
|---|---|---|---|
| ≥5% | <5% | P | |
| Age (y) | 58.7 ± 13.4 | 58 ± 10 | NS |
| No. of stenotic coronary vessels | 1.6 ± 0.7 | 1.3 ± 0.6 | NS |
| Time to reperfusion (min) | 141 ± 91 | 134 ± 92 | NS |
| CK peak (IU/L) | 2,533 ± 2,206 | 3,373 ± 2,560 | NS |
| Admission LVEF (%) | 43.3 ± 8.6 | 43.6 ± 9.1 | NS |
| Baseline wall motion score index | 2.1 ± 0.5 | 2.2 ± 0.5 | NS |
| Dobutamine wall motion score index | 1.8 ± 0.5 | 2.1 ± 0.5 | NS |
| Delta wall motion score index | 0.26 ± 0.23 | 0.08 ± 0.15 | <0.05 |
| Infarct extent | 5.9 ± 2.5 | 6.4 ± 2.3 | NS |
| Mean sestamibi activity | 67.8 ± 12 | 61.5 ± 13.5 | NS |
| Infarct severity index | 0.19 ± 0.23 | 0.45 ± 0.26 | <0.02 |
NS = not significant; CK = creatine phosphokinase; Delta = rest to dobutamine.