Table 2.
Systolic Strain Rate Values by VVI and Sonomicrometry From Ischemic Segment and Nonischemic Segment During Different Hemodynamic Conditions
| Strain Rate by VVI (s–1) |
Strain Rate by SM (s–1) |
|||||
|---|---|---|---|---|---|---|
| Isc Seg SAX | Isc Seg LAX | Non-Isc Seg LAX | Isc Seg SAX | Isc Seg LAX | Non-Isc Seg LAX | |
| Baseline | –2.0 ± 1.1 | –0.9 ± 0.3 | –0.4 ± 1.4 | –1.3 ± 0.7 | –1.0 ± 0.5 | –0.4 ± 0.8 |
| Dobutamine | –4.9 ± 1.2* | –3.2 ± 0.7† | –2.5 ± 0.9* | –3.2 ± 0.8* | –3.2 ± 1.0* | –2.2 ± 1.5‡ |
| Occlusion | 0.8 ± 1.3† | 1.5 ± 1.0† | –0.5 ± 1.1 | 0.8 ± 1.2* | 1.4 ± 1.0† | –0.7 ± 0.2 |
| Rep. 1 | 0.1 ± 1.7‡ | –0.07 ± 1.1 | –0.8 ± 0.3 | –0.1 ± 1.0‡ | –0.3 ± 1.1 | –0.6 ± 0.1 |
| Rep. 2 | –0.1 ± 1.0‡ | –0.1 ± 1.6 | –0.3 ± 0.8 | –0.4 ± 0.8 | –0.3 ± 1.4 | –0.3 ± 0.6 |
| Rep. 3 | 0.3 ± 1.7‡ | –0.4 ± 1.3 | –1.1 ± 0.5 | –0.1 ± 1.1 | –0.7 ± 1.3 | –0.6 ± 0.2 |
| Dobutamine | –4.0 ± 0.9* | –2.9 ± 1.2* | –2.5 ± 0.9* | –2.7 ± 1.0‡ | –2.3 ± 0.7‡ | –2.6 ± 1.5‡ |
| Esmolol | –0.4 ± 0.9‡ | 0.9 ± 1.2‡ | –0.5 ± 0.8 | –0.8 ± 0.2 | 0.5 ± 1.2‡ | –0.6 ± 0.1 |