Variable | Baseline | Myocardial wall stabilisation | Coronary occlusion | 2 mins after snare release | 10 mins after snare release |
---|---|---|---|---|---|
Thickening velocity (cm/s) | 2.6 (0.6) | 2.4 (0.7) | 1.4 (0.6)1-150 | 1.7 (0.5)1-150 | 2.6 (0.5) |
Thinning velocity (cm/s) | 3.0 (0.6) | 2.9 (0.8) | 1.4 (0.5)** | 2.0 (0.8) | 2.8 (0.5) |
Thickening fraction (%) | 48 (16) | 50 (10) | 10 (6)** | 29 (10)1-150 | 47 (13) |
Peak power (mW/cm2) | 33 (5) | 33 (4) | 21 (4)** | 25 (4)1-150 | 41 (3)1-150 |
Regional work (mJ/cm2) | 4.6 (0.6) | 4.8 (1.0) | 2.2 (0.8)** | 2.8 (1.0)1-150 | 5.9 (0.5)1-150 |
Cycle efficiency (%) | 60 (10) | 67 (5) | 37 (10)** | 48 (10)1-150 | 76 (8)1-150 |
↵1-150 p < 0.05 v baseline; **p < 0.01v baseline.