Table 1.
End-systolic LV Epicardial Principal Strains
| Animal number | Preload pressure (mmHg) | Afterload pressure (mmHg) | Basic cycle length (ms) | Available triangles | End-systolic deformation (%) |
|
|---|---|---|---|---|---|---|
| Major | Minor | |||||
| 1 | 15 | 45 | 800 | 26 | −9.5 ± 1.5 | −0.7 ± 1.0 |
| 1 | 15 | 45 | 500 | 26 | −9.0 ± 1.1 | −0.2 ± 1.3 |
| 2 | 15 | 30 | 700 | 17 | −9.7 ± 3.6 | 1.0 ± 0.7 |
| 2 | 15 | 30 | 500 | 14 | −9.0 ± 3.1 | 0.8 ± 0.6 |
| 3 | 15 | 30 | 700 | 37 | −11.1 ± 2.6 | 0.2 ± 1.3 |
| 3 | 15 | 30 | 500 | 27 | −6.4 ± 1.4 | 0.8 ± 0.8 |
| Mean ± SD | 147 (total) | −9.2 ± 2.7 | 0.3 ± 1.2 | |||
End-diastole is the reference state for strain. Negative principal strain indicates shortening. All hearts were paced from the LV apex.