Table 3. Comparison of TAP and non-TAP patients.
| Variables | TAP (n=53) | non-TAP (n=34) | P value |
|---|---|---|---|
| Age at TOF repair (years) | 4.8±5.1 | 3.7±3.5 | 0.279 |
| Follow-up period (years) | 24.4±8.9 | 24.1±10.0 | 0.859 |
| Previous palliative surgery | 27 (51%) | 6 (18%) | – |
| VT/VF | 9 (17.0%) | 1 (2.9%) | 0.035 |
| Cardiothoracic ratio (%) | 55.9±6.7 | 51.6±5.5 | 0.002 |
| QRS duration (ms) | 159±28 | 154±26 | 0.464 |
| QTc (ms) | 473±42 | 452±32 | 0.014 |
| Serum BNP (pmol/L) | 60.2±71.0 | 21.8±13.9 | 0.028 |
| TR pressure gradient (mmHg) | 36.5±10.8 | 27.5±8.0 | <0.001 |
| LVEDd (mm) | 43.0±7.1 | 42.9±5.1 | 0.938 |
| LVEF (%) | 63.4±9.8 | 65.6±6.0 | 0.276 |
| RVEDd (mm) | 31.9±9.0 | 27.0±11.3 | 0.040 |
| PR grade ≥ III | 32 (60.4%) | 8 (23.5%) | <0.001 |
| TR grade ≥ III | 10 (18.9%) | 1 (2.9%) | 0.025 |
TAP, transannular patch repair; TOF, tetralogy of Fallot; VT, ventricular tachycardia; VF, ventricular fibrillation; BNP, brain natriuretic peptide; LVEDd, left ventricular end-diastolic dimension; LVEF, left ventricular ejection fraction; RVEDd, right ventricular end-diastolic dimension; PR, pulmonary valve regurgitation; TR, tricuspid regurgitation; QTc, corrected QT time.