Table 1.
Patient characteristics
| Early repair * n = 24 | Late repair n = 3 | |
|---|---|---|
| Age at enrolment (years) | 21 ± 3 | 24 ± 8 |
| Male, n (%) | 21 (88) | 2 (66) |
| Age at surgery (days) | 6 ± 5 | 397 ± 592 |
| Era of ASO surgery | 1986 - 1991 | 1979 - 1985 |
| Cardiac anatomy | ||
| TGA with IVS | 14 | - |
| TGA with VSD | 10 | 2 |
| Taussig-Bing | - | 1 |
| Additional lesions | ||
| Atrial septal defect | 2 | 1 |
| Coarctation | 2 | 1 |
| Subvalvular aortic stenosis | - | 1 |
| Subvalvular pulmonary stenosis | - | 1 |
| Coronary pattern | ||
| 1LCx2R (usual) | 17 | 1 |
| 2RLCx (single ostium) | 2 | 2 |
| 1L2RCx (CX from RCA) | 4 | |
| 1Cx2RL (LAD from RCA) | 1 | |
| Bypass time, min | 141 ± 99 | 203 ± 25 |
| Cross clamp time, min | 99 ± 22 | 55 ± 39 |
| Additional repair | ||
| Takeuchi repair | 1 | - |
| RV-PA conduit | - | 1 |
| Subclavian flap repair of coarctation | 1 | 1 |
| End-to-end repair of coarctation | 1 | - |
| Indication for exam | ||
| Chest pain | 5 | 2 |
| Coronary surveillance | 19 | 1 |
| Prior ischemia testing as a child † | ||
| Yes | 13 | 1 |
| No | 9 | 2 |
| Unknown | 2 | - |
| Type of prior ischemia testing | ||
| Treadmill | 1 | |
| Thallium | 8 | |
| Technetium | 7 | |
| Coronary angiography | 3 | |
IVS = Interventricular septum; RV-PA = Right ventricular to pulmonary artery; TGA = Transpostion of the great arteries; VSD = Ventricular septal defect.
*Early repair defined as occurring within the first 30 days of life.
†Median number = 1 (range 1–3).