Age at 1st procedure (days) | 8 (1 to 307) | 9 (1 to 757) | 0.17 |
Weight at 1st procedure (kg) | 3.2 (2.0 to 5.5) | 3.2 (2.0 to 7.2) | 0.66 |
Sex (male/female) | 33/25 | 17/12 | 1.00 |
RV hypoplasia | | | |
Mild | 19 | 9 | 0.37 |
Moderate | 15 | 5 | |
Severe | 24 | 15 | |
RV morphology | | | |
Monopartite | 2 | 2 | 0.61 |
Bipartite | 9 | 6 | |
Tripartite | 47 | 21 | |
RV-coronary connection (yes/no) | 11/47 | 9/20 | 0.28 |
Tricuspid regurgitation | | | |
Nil or mild | 17 | 8 | 0.51 |
Moderate | 10 | 6 | |
Severe | 31 | 15 | |
Ebstein’s abnormality (yes/no) | 2/56 | 2/27 | 0.60 |
Tricuspid valve dimension | | | |
Annulus size (mm) | 10.4 (2.9) | 9.8 (3.4) | 0.49 |
Annulus z score* | −1.2 (1.5) | −1.5 (2.4) | 0.52 |
Annulus z score† | −3.8 (2.5) | −3.9 (2.7) | 0.85 |
Type of primary procedure | | | |
RVOTR | 7 | 5 | |
CPV | 30 | 12 | 0.24 |
Laser assisted valvotomy | 12 | 3 | |
SP shunt | 9 | 9 | |
Year of intervention (before/after 1990) | 26/32 | 9/20 | 0.25 |