Table 2. Aortic diameter at different levels.
| Level of aorta | Group | T0 | T1 | T2 |
|---|---|---|---|---|
| Aortic arch level (mm) | MiTAR | 35.0±3.4 | 29.8±4.4 | 30.0±1.9 |
| TAR | 35.8±4.2 | 30.5±4.8 | 31.0±2.2 | |
| P value | 0.614 | 0.584 | 0.043 | |
| Pulmonary artery bifurcation level (mm) | MiTAR | 34.7±3.1 | 33.8±4.8 | 29.0±1.9 |
| TAR | 33.5±4.6 | 35.2±5.5 | 31.0±2.2 | |
| P value | 0.426 | 0.362 | 0.043 | |
| Diaphragm level (mm) | MiTAR | 31.6±4.2 | 32.3±4.2 | 26.6±13.5 |
| TAR | 29.2±3.9 | 33.1±7.2 | 31.8±5.8 | |
| P value | 0.058 | 0.668 | 0.303 | |
| Renal artery level (mm) | MiTAR | 24.6±4.5 | 23.9±3.4 | 22.1±7.9 |
| TAR | 23.3±4.3 | 25.4±4.0 | 25.4±5.1 | |
| P value | 0.445 | 0.176 | 0.269 |
T0: at admission before operation; T1: early stage after operation; T2: follow-up stage after operation. MiTAR, modified island total arch replacement; TAR, total arch replacement.