Table 1.
Preoperative characteristics
| Variable | Result |
|---|---|
| Male | 40 (47.1) |
| Age at surgery (y) | 33 (12-53) |
| BSA (m2) | 1.6 (1.3-1.9) |
| Genetic syndromes present | 4 (4.7) |
| Cardiac malformations present | 72 (84.7) |
| Prior cardiac interventions | 52 (61.2) |
| Pulmonary valve/RVOT procedure | 19 (22.4) |
| TOF repair | 19 (22.4) |
| Blalock-Taussig shunt | 11 (12.9) |
| RV-PA connection revision | 9 (10.6) |
| Isolated ASD | 6 (7.1) |
| Isolated VSD | 2 (2.4) |
| Glenn | 1 (1.2) |
| Cardiac transplantation | 5 (5.9) |
| PA band | 1 (1.2) |
| Aortic valve intervention | 2 (2.4) |
| Other | 6 (7.1) |
| Fontan | 1 (1.2) |
| Mitral valve replacement | 1 (1.2) |
| Arterial switch | 1 (1.2) |
| Rastelli | 1 (1.2) |
| Hybrid PCI | 1 (1.2) |
| Coronary unroofing | 1 (1.2%) |
| Primary TV lesion | |
| TR | 80 (94.1) |
| TS | 3 (3.5) |
| Mixed TR + TS | 2 (2.4) |
| Etiology of TV lesion | |
| RV/RVOT/PA obstruction | 39 (45.9%) |
| Right heart volume overload | 29 (34.1) |
| Isolated congenital dysplastic TV lesion | 12 (14.1) |
| Iatrogenic lesion | 5 (5.9) |
| Lesion post-VSD repair | 2 (2.4) |
| Iatrogenic injury | 2 (2.4) |
| Lesion from transvenous lead | 1 (1.2) |
| RV dysfunction | |
| Mild | 23 (27.1) |
| Moderate | 15 (17.6) |
| Severe | 1 (1.2) |
| LV dysfunction∗ | |
| Mild | 10 (11.8) |
| Moderate | 5 (5.8) |
| Mitral regurgitation | |
| Moderate | 2 (2.4) |
| Severe | 4 (4.7) |
Values are presented as median (interquartile range) or frequency (%). BSA, Body surface area; RVOT, right ventricular outflow tract; TOF, tetralogy of Fallot; RV, right ventricle; PA, pulmonary artery; ASD, atrial septal defect; VSD, ventricular septal defect; PCI, percutaneous coronary intervention; TV, tricuspid valve; TR, tricuspid regurgitation; TS, tricuspid stenosis; LV, left ventricle.
∗
LV dysfunction was defined as mild (ejection fraction 40%-49%) or moderate (ejection fraction 30%-39%).