Table 1:
Baseline characteristics in the entire study population
| Variable | Result (N = 115) |
|---|---|
| Male sex | 54 (47.0%) |
| Primary diagnosis | |
| TOF or its variantsa | 92 (80%) |
| With MAPCA | 14 (12.2%) |
| With absent pulmonary valve syndrome | 5 (4.3%) |
| Truncus arteriosus | 11 (9.6%) |
| Aortic stenosis (with Ross procedure) | 7 (6.1%) |
| Miscellaneous | 5 (4.3%) |
| Underlying conditions | |
| Confluent pulmonary artery with normal arbourization | 80 (69.6%) |
| History of previous cardiac operation | 94 (81.7%) |
| Genetic anomaly | 9 (7.8%) |
| McGoon ratio | 2.1 (1.8–2.4) |
| Pulmonary artery index (mm²/m²) | 259.9 (IQR: 193.8–332.6) |
| Characteristics at operation | |
| Age (months) | 10.3 (IQR: 5.7–26.9) |
| Neonate | 11 (9.6%) |
| Body weight (kg) | 7.8 (IQR: 6.3–12.4) |
| BSA (m²) | 0.39 (IQR: 0.33–0.55) |
| Conduit size (mm) | 14.0 (IQR: 12.0–16.0) |
| 12 | 36 (31.3%) |
| 14 | 45 (39.1%) |
| 16 | 21 (18.3%) |
| 18 | 13 (11.3%) |
| Conduit diameter/body weight at operation (mm/kg) | 1.71 (IQR: 1.30–2.06) |
| Conduit diameter (Z-score)b | 1.6 (IQR: 0.9–2.3) |
| Dual RVOT pathway | 11 (9.6%) |
| One-and-a-half ventricular repair | 11 (9.6%) |
| Concomitant pulmonary artery angioplasty | 67 (58.3%) |
| CPB time (min) | 143 (IQR: 115–188) |
| ACC time (min) (in 106 patients) | 52 (IQR: 36–93) |
Numbers with percentages or medians with interquartile ranges are shown as appropriate.
a
Tetralogy of Fallot, pulmonary atresia with ventricular septal defect, Fallot type double outlet right ventricle.
b
Z-scores were calculated using the echocardiographic nomogram of the pulmonary valve annulus.
ACC: aortic cross-clamping.; BSA: body surface area; CPB: cardiopulmonary bypass; IQR: interquartile range; MAPCA: major aortopulmonary collateral arteries; RVOT: right ventricular outflow tract; TOF: tetralogy of Fallot.