Table 1 Patient characteristics.
| All patients (n = 99) | |
|---|---|
| Patient characteristics | |
| Male/female | 56/43 |
| Previous shunt procedure, n (%) | 48 (49) |
| Mean SD age at previous shunt procedure (years) | 2.3 (2.4) |
| Median range age at initial correction (years) | 4.9 (0.3–30) |
| Type of RVOT reconstruction at initial correction (n = 93) | |
| Myectomy/valvulotomy, n (%) | 9/93 (10) |
| RVOT patch, n (%) | 13/93 (14) |
| Transannular patch, n (%) | 65/93 (70) |
| Valved conduit*, n (%) | 6/93 (7) |
| Preoperative CMR (n = 49) and echocardiographic data (n = 82) | |
| Mean (SD) pulmonary regurgitation (grades 1–4) | 3.2(0.92) |
| Mean (SD) pulmonary stenosis (mm Hg) | 22 (24) |
| Mean (SD) RV end‐diastolic volume (ml/m2) | 168 (37) |
| Mean (SD) RV end‐systolic volume (ml/m2) | 101 (32) |
| Mean (SD) RV ejection fraction (%) | 41 (9) |
| Surgical parameters | |
| Concomitant RV aneurysm/patch resection, n (%) | 46 (47) |
| Concomitant branch pulmonary artery angioplasty, n (%) | 22 (22) |
| Proximal extension of the homograft with patch, n (%) | 12 (12) |
| Concomitant cryoablation, n (%) | 1 (1) |
CMR, cardiac magnetic resonance; RV, right ventricle; RVOT, right ventricular outflow tract; VSD, ventricular septal defect.
*No homograft was used during initial correction.