Table 3.
Left Ventricular Exercise Echocardiography
| Preterm-Born Adults (n = 21) | Term-Born Adults (n = 37) | p Value | |
|---|---|---|---|
| 40% Exercise load | |||
| Ejection fraction, % | 75.6 ± 8.5 | 79.0 ± 5.2 | 0.115 |
| Stroke volume index, ml/m2 | 21.4 ± 8.8 | 26.9 ± 7.6 | 0.104 |
| EDV/BSA, ml/m2 | 27.6 ± 10.4 | 33.6 ± 10.0 | 0.760 |
| ESV/BSA, ml/m2 | 6.68 ± 2.79 | 7.40 ± 3.34 | 0.147 |
| Peak systolic longitudinal strain, % | −21.3 ± 3.1 | −22.7 ± 2.7 | 0.103 |
| 60% Exercise load | |||
| Ejection fraction, % | 71.9 ± 8.7 | 78.6 ± 5.4 | 0.004 |
| Stroke volume index, ml/m2 | 21.5 ± 10.6 | 25.6 ± 6.8 | 0.218 |
| EDV/BSA, ml/m2 | 29.2 ± 11.5 | 32.8 ± 9.5 | 0.500 |
| ESV/BSA, ml/m2 | 7.61 ± 2.27 | 7.20 ± 3.42 | 0.430 |
| Peak systolic longitudinal strain, % | −19.3 ± 2.5 | −21.6 ± 3.3 | 0.004 |
| 80% Exercise load | |||
| Ejection fraction, % | 69.8 ± 6.4 | 77.1 ± 6.3 | 0.004 |
| Stroke volume index, ml/m2 | 19.9 ± 7.6 | 25.1 ± 6.9 | 0.094 |
| EDV/BSA, ml/m2 | 28.1 ± 9.7 | 32.6 ± 8.7 | 0.154 |
| ESV/BSA, ml/m2 | 8.24 ± 2.60 | 7.52 ± 3.12 | 0.420 |
| Peak systolic longitudinal strain, % | −20.2 ± 2.9 | −20.1 ± 2.4 | 0.592 |
Values are mean ± SD. p values were adjusted for sex. Bold p values are statistically significant (p < 0.05).
ESV = end-systolic volume; other abbreviation as in Table 2.