Table 1. Preoperative characteristics.
| Patient characteristics | |
| Male : Female | 20:28 |
| Age at operation (y) | 5.56 (1 d–42.1 y) |
| Body weight (kg) | 16.50 (2.72–60.0) |
| Body surface area (m2) | 0.68 (0.20–1.70) |
| Follow up duration (y) | 9.58 (1 d–33.5 y) |
| Preoperative symptoms, n (%) | 40 (83.3) |
| Exertional dyspnea | 24 (50.0) |
| Cyanosis | 24 (50.0) |
| Frequent URI | 17 (35.4) |
| Palpitation | 9 (18.8) |
| Fatigue | 8 (16.7) |
| Diaphoresis | 4 (8.3) |
| Arrhythmia, n (%) | 25 (52.1) |
| Right bundle branch block | 15 (31.3) |
| Atrial fibrillation/Atrial flutter | 5 (10.4) |
| Paroxysmal supraventricular tachycardia | 5 (10.4) |
| 2' AV block | 3 (6.3) |
| Associated cardiac anomalies, n (%) | 44 (91.7) |
| Atrial septal defect | 40 (83.3) |
| Patent ductus arteriosus | 8 (16.7) |
| Ventricular septal defect | 7 (14.6) |
| Pulmonary stenosis | 7 (14.6) |
| Patent foramen ovale | 6 (12.5) |
| Preoperative TR , n (%) | |
| Mild | 3 (6.3) |
| moderate | 11 (22.9) |
| Moderate to severe | 14 (29.2) |
| Severe | 20 (41.7) |
| Preoperative NYHA /modified Ross Heart failure classification, n (%) | |
| Class I | 12 (25.0) |
| Class II | 28 (58.3) |
| Class III | 6 (12.5) |
| Class IV | 2 (4.2) |
| Preoperative Carpentier’s type, n (%) | |
| A | 11 (22.9) |
| B | 21 (43.8) |
| C | 12 (25.0) |
| D | 4 (8.3) |
URI: upper respiratory tract infection, AV: atrioventricular, TR: tricuspid regurgitation, NYHA: New York Heart Association