Table 1. VFT analysis with respect to both their differences between age-matched healthy volunteers and patients.
| Parameter | rTOF group | Volunteer group | P value |
|---|---|---|---|
| Age (years) | 11.85±1.27 | 12.01±1.27 | 0.585 |
| N (case) | 20 | 20 | |
| Gender (male/female) | 15/5 | 11/9 | |
| Heart rate (beat/min) | 76±11 | 75±13 | 0.823 |
| LV EDV indexed to BSA (mL/m2) | 85.18±22.13 | 80.08±12.19 | 0.499 |
| LV ESV indexed to BSA (mL/m2) | 35.83±9.16 | 30.12±6.03 | 0.026* |
| LV stroke volume indexed to BSA (mL/m2) | 45.95±6.97 | 50.27±7.89 | 0.199 |
| LV EF (%) | 57.90±4.96 | 62.55±4.67 | 0.004* |
| VFTvolume | 5.44±1.93 | 4.27±0.88 | 0.018* |
| VFTblood | 3.75±0.81 | 4.26±0.94 | 0.078 |
Data were expressed as mean ± standard deviation. *, statistically significant differences. VFT, vortex formation time; rTOF, repair of tetralogy of Fallot; LV EDV, left ventricular end-diastole volume; BSA, body surface area; LV ESV, left ventricular end-systolic volume; EF, ejection fraction.