Table 3.
Ventricular peak kinetic energy indexed to planimetric stroke volume, cardiac output, body surface area, and inverted to aortic and pulmonary flow for left and right ventricle patients with repaired tetralogy of Fallot and controls
| Mean ± SD rToF, n = 15 Controls, n = 14 | Peak KE (mJ) | Peak KE/SV (mJ/ml) | Peak KE/ systemic CO | Peak KE/BSA (mJ/ml/m2) | Q/peak KE (ml/cycle/mJ) | Q/peak KE/BSA (ml/cycle/mJ/m2) | |
|---|---|---|---|---|---|---|---|
| LV | rToF systole | 2.8 ± 1.1 **** | 0.03 ± 0.01 * | 0.59 ± 0.23 * | 1.5 ± 0.6 *** | 28.8 ± 13.3 NS | 15.6 ± 7.6 NS |
| Controls systole | 4.8 ± 1.1 | 0.04 ± 0.01 | 0.75 ± 0.17 | 2.4 ± 0.5 | 24.8 ± 6.3 | 12.5 ± 3.6 | |
| rToF diastole | 6.2 ± 2.9 NS | 0.08 ± 0.04 NS | 1.18 ± 0.56 NS | 3.4 ± 1.7 NS | 14.5 ± 7.6 * | 7.7 ± 4.1 * | |
| Controls diastole | 5.6 ± 1.9 | 0.05 ± 0.02 | 0.88 ± 0.33 | 2.8 ± 1.0 | 23.3 ± 11.5 | 11.6 ± 5.5 | |
| RV | rToF systole | 9.7 ± 4.0 NS | 0.08 ± 0.03 NS | 1.98 ± 0.74 * | 5.2 ± 1.8 NS | 9.0 ± 4.4 ** | 4.9 ± 2.5 * |
| Controls systole | 8.2 ± 1.9 | 0.08 ± 0.02 | 1.30 ± 0.38 | 4.1 ± 0.9 | 13.9 ± 3.3 | 7.0 ± 1.9 | |
| rToF diastole | 7.7 ± 4.3 *** | 0.06 ± 0.03 *** | 1.49 ± 0.79 **** | 4.0 ± 2.0 **** | 7.9 ± 4.3 **** | 4.3 ± 2.2 **** | |
| Controls diastole | 3.1 ± 1.3 | 0.03 ± 0.01 | 0.49 ± 0.24 | 1.6 ± 0.7 | 41.1 ± 17.3 | 20.4 ± 8.1 |
KE kinetic energy, SV planimetric stroke volume, CO cardiac output, BSA body surface area, Q flow, rToF repaired tetralogy of Fallot, LV left ventricle, RV right ventricle
*p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001 when comparing rToF to controls