Table 1.
SBP, HR, and Strain Values by VVI and Sonomicrometry From Ischemic Segment and Nonischemic Segment During Different Hemodynamic Conditions
| Strain by VVI (%) |
Strain by SM (%) |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| SBP (mm Hg) | HR (beats/min) | Isc Seg SAX | Isc Seg LAX | Non-Isc Seg SAX | Non-Isc Seg LAX | Isc Seg SAX | Isc Seg LAX | Non-Isc Seg SAX | Non-Isc Seg LAX | |
| Baseline | 91.5 ± 24.5 | 123.5 ± 7.4 | –18.4 ± 6.6 | –7.4 ± 3.4 | –6.8 ± 8.4 | –5.7 ± 2.3 | –4.8 ± 0.6 | –3.5 ± 1.8 | –8.4 ± 2.6 | –1.4 ± 4.6 |
| Dobutamine | 149.9 ± 56.9* | 148.7 ± 8.1† | –33.9 ± 6.7† | –16.2 ± 3.3† | –29.2 ± 7.2† | –12.4 ± 4.6‡ | –10.8 ± 3.3* | –7.6 ± 6.4‡ | –12.8 ± 3.2 | –4.1 ± 5.5‡ |
| Occlusion | 72.6 ± 17.8 | 117.0 ± 19.3 | 3.5 ± 5.4† | 4.7 ± 2.1† | –10.2 ± 6.4 | –2.8 ± 4.0 | 7.1 ± 6.4† | 6.5 ± 5.6† | –7.9 ± 1.6 | –1.7 ± 3.4 |
| Rep. 1 | 81.7 ± 15.2 | 120.8 ± 7.0 | –2.9 ± 8.4* | 0.5 ± 5.5* | –9.2 ± 12.7 | –6.2 ± 3.0 | –0.7 ± 3.1‡ | 0.3 ± 4.6 | –6.5 ± 3.1 | –1.4 ± 2.7 |
| Rep. 2 | 83.8 ± 16.7 | 123.3 ± 5.1 | –3.0 ± 7.0* | –0.3 ± 5.0 | –12.7 ± 3.1 | –3.3 ± 5.8 | –0.5 ± 2.9‡ | 0.7 ± 5.1 | –8.1 ± 6.1 | –1.8 ± 3.4 |
| Rep. 3 | 100.2 ± 17.3 | 122.6 ± 6.6 | –2.3 ± 6.0* | –2.7 ± 5.3 | –11.8 ± 4.7 | –9.8 ± 4.0 | –1.0 ± 3.7‡ | 0.6 ± 5.2 | –7.0 ± 4.6 | –3.1 ± 2.8 |
| Dobutamine | 144.3 ± 32.0* | 140.8 ± 14.7‡ | –34.8 ± 7.0* | –15.8 ± 3.3* | –25.2 ± 7.3* | –14.2 ± 5.8* | –8.5 ± 2.0* | –3.1 ± 6.7 | –16.9 ± 0.5 | –5.2 ± 4.9‡ |
| Esmolol | 63.4 ± 21.1 | 101.5 ± 5.3† | –4.2 ± 6.0* | –0.2 ± 5.8‡ | –9.4 ± 4.1 | –2.6 ± 6.5 | –1.2 ± 3.5‡ | 0.8 ± 4.5‡ | –7.3 ± 3.7 | –2.0 ± 3.8 |
*
p < 0.01
†
p < 0.001
‡
p < 0.05 when compared with baseline.
HR = heart rate; Isc Seg = ischemic segment; LAX = long axis, longitudinal; Non-Isc Seg = nonischemic segment; Rep. = reperfusion; SAX = short axis, circumferential; SBP = systolic blood pressure; SM = sonomicrometry; VVI = Velocity Vector Imaging.