Patient and surgical characteristics
| Number of patients | 153 |
| Follow-up after PVR (years) | 9.6 (5.9, 13.3) |
| Male gender | 95 (62%) |
| Age at PVR (years) | 30.8±11 |
| Initial correction | |
| Myectomy/valvulotomy | 17 (11%) |
| RV patch | 21 (14%) |
| Transannular patch | 106 (69%) |
| Other | 9 (6%) |
| Age at initial correction (years) | 4.8 (2.4, 7.5) |
| Previous shunt procedure | 73 (48%) |
| Waterston | 31 (42%) |
| Potts | 6 (8%) |
| Blalock–Taussig | 32 (44%) |
| Other | 4 (5%) |
| Age at shunt procedure (years) | 1.5 (0.7,2.9) |
| Down syndrome | 4 (3%) |
| 22q11 deletion | 5 (3%) |
| Other cause of mental retardation | 8 (5%) |
| History prior to PVR | |
| Ventricular tachycardia | 15 (10%) |
| Supraventricular tachycardia | 21 (14%) |
| Heart failure | 6 (4%) |
| QRS duration before PVR (ms) | 152±27 |
| NYHA class ≥II before PVR | 67/119 (56%) |
| Indication for PVR | |
| Pulmonary regurgitation | 130 (85%) |
| Other | 23 (15%) |
| Surgical data | |
| Type of RV outflow tract homograft | |
| Pulmonary homograft | 147 (96%) |
| Aortic homograft | 6 (4%) |
| Previous PVR | 2 (1%) |
| Concomitant procedures | |
| Tricuspid valve plasty or ring | 29 (19%) |
| RV aneurysm/patch resection | 52 (34%) |
| Pulmonary artery angioplasty | 34 (22%) |
| Ventricular septal defect closure | 9 (6%) |
| Diameter homograft (mm) | 25.2±2.0 |
Data are described as number with frequency, mean with SD or median with IQR. Supraventricular and ventricular tachycardia were both defined as >30 s or requiring cardioversion.
NYHA, New York Heart Association; PVR, pulmonary valve replacement.