Table 3.
Preoperative and operative characteristics according to the type of conduits
| Characteristic | All | Contegra | Valved PTFE | Valveless PTFE | Hancock | p-value |
|---|---|---|---|---|---|---|
| Total no. of patients | 141 | 82 | 34 | 19 | 6 | |
| Age at operation (mo) | 6 (1 to 8) | 6 (4 to 8) | 5 (1 to 9) | 1 (0 to 5) | 11 (7 to 12) | <0.001 |
| Weight at operation (kg) | 6.5 (3.8 to 7.6) | 6.7 (5.3 to 7.7) | 6 (3.7 to 7.7) | 3.2 (2.8 to 6.1) | 7.7 (7.0 to 8.6) | <0.001 |
| Male gender | 62 (44.0) | 36 (85.0) | 13 (38.0) | 8 (42.0) | 5 (83.0) | 0.235 |
| Premature | 26 (18.4) | 17 (20.4) | 5 (14.7) | 3 (15.7) | 1 (16.6) | 0.873 |
| Chromosomal anomalies | 25 (17.7) | 10 (12.1) | 11 (32.3) | 2 (10.5) | 2 (33.3) | 0.039 |
| Primary cardiac diagnosis | 0.002 | |||||
| Pulmonary atresia with VSD | 82 (58.1) | 52 (63.4) | 17 (50.0) | 7 (36.8) | 6 (100.0) | |
| Truncus arteriosus | 18 (12.7) | 9 (10.9) | 3 (8.8) | 6 (31.5) | - | |
| DORV/ToF | 16 (11.3) | 11 (13.4) | 4 (11.7) | - | - | |
| ToF/Absent pulmonary valve syndrome | 10 (7.0) | 4 (4.8) | 6 (17.6) | 1 (5.2) | - | |
| Others | 15 (10.6) | 6 (7.3) | 4 (11.7) | 5 (26.3) | - | |
| Conduit diameter (mm) | 12 (12 to 14) | 12 (12 to 14) | 12 (12 to 14) | 10 (8 to 10) | 14 (14 to 14) | <0.001 |
| 8 | 9 (6.3) | - | - | 9 (47.3) | - | |
| 10 | 13 (9.2) | - | 7 (20.5) | 6 (31.5) | - | |
| 12 | 61 (43.2) | 43 (52.5) | 16 (47.0) | 2 (10.5) | - | |
| 14 | 55 (39.0) | 38 (46.3) | 10 (29.4) | 2 (10.5) | 5 (83.3) | |
| 16 | 3 (2.1) | 1 (1.2) | 1 (2.9) | - | 1 (16.6) | |
| Conduit diameter, z-score | 1.34 (0.8 to 1.8) | 1.47 (0.9 to 2.0) | 1.00 (0.8 to 1.7) | 0.08 (-0.2 to 0.8) | 1.27 (1.0 to 1.6) | <0.001 |
| Cardiopulmonary bypass time (min) | 151 (123 to 203) | 143 (119 to 175) | 176 (147 to 209) | 204 (149 to 246) | 153 (141 to 172) | 0.007 |
| Aortic cross-clamp time (min) | 54 (40 to 88) | 48 (37 to 73) | 61 (48 to 90) | 95 (76 to 110) | 45 (42 to 57) | 0.001 |
Values are presented as number, median (interquartile range), or number (%).
PTFE, polytetrafluoroethylene; VSD, ventricular septal defect; DORV, double outlet right ventricle; ToF, tetralogy of Fallot.