Left ventricular anterior wall dynamics in patients with collaterals
| Variable | Baseline | Myocardial wall stabilisation | Coronary occlusion | 2 mins after snare release | 10 mins after snare release |
|---|---|---|---|---|---|
| Thickening velocity (cm/s) | 2.5 (0.2) | 2.6 (0.3) | 2.5 (0.4) | 2.7 (0.6) | 3.0 (0.7) |
| Thinning velocity (cm/s) | 3.3 (0.3) | 2.9 (0.6) | 2.1 (0.4)2-150 | 2.7 (0.6) | 3.3 (0.7) |
| Thickening fraction (%) | 48 (10) | 45 (10) | 41 (10) | 47 (10) | 55 (10) |
| Peak power (mW/cm2) | 31 (4) | 35 (4) | 27 (4) | 35 (5) | 39 (3)2-150 |
| Regional work (mJ/cm2) | 4.8 (0.5) | 4.9 (0.7) | 3.5 (0.5)2-150 | 5.8 (0.8) | 6.4 (0.5)** |
| Cycle efficiency (%) | 65 (8) | 67 (10) | 50 (8)2-150 | 76 (6) | 80 (5)2-150 |
↵2-150 p < 0.05 v baseline; **p < 0.01v baseline.