Table 4.
Preoperative Descending Aorta Morphology Between The Acute And Chronic Groups
| Variables | Acute Group Mean±SD Or Median | Chronic Group Mean±SD Or Median | P-value |
|---|---|---|---|
| True lumen area, mm2 | |||
| L1 | 342.3 ± 107.1 | 421.5 ± 121.7 | 0.004 |
| L2 | 314.4 ± 97.3 | 250.1 ± 84.2 | 0.006 |
| L3 | 263.4 ± 95.3 | 268.2 ± 78.1 | 0.829 |
| False lumen area, mm2 | |||
| L1 | 485.4 ± 292.6 | 1445.0 ± 643.3 | 0.000 |
| L2 | 498.5 ± 199.4 | 1375.2 ± 581.5 | 0.000 |
| L3 | 356.9 ± 114.6 | 619.5 ± 273.6 | 0.000 |
| Maximal lumen area, mm2 | |||
| L1 | 827.7 ± 384.4 | 1866.5 ± 712.4 | 0.000 |
| L2 | 812.9 ± 516.9 | 1625.3 ± 535.7 | 0.000 |
| L3 | 620.3 ± 324.4 | 887.7 ± 422.6 | 0.003 |
| TR | 0.57 (0.49) | 0.74 (0.60) | 0.000 |
| OR | 2.75 ± 1.89 | 3.96 ± 2.27 | 0.022 |
| MR | 1.23 ± 0.15 | 1.20 ± 0.19 | 0.467 |
| TI | 1.22 (1.19) | 1.41 ± 0.17 | 0.000 |
| RoC, mm | 26.05 ± 4.64 | 28.26 ± 4.56 | 0.052 |
Abbreviations: TEVAR, thoracic endovascular aortic repair; TR, taper ratio; OR, oversizing ratio; MR, mismatch ratio; TI, tortuosity index; RoC, radius of curvature.