Variables | N (%) | Conservative group (n = 71) | Non-conservative group (n = 39) | t/χ2 | P-value |
---|---|---|---|---|---|
Ostium to dissection entry, mm | 15.1 ± 9.1 | 15.4 ± 8.9 | 14.4 ± 9.7 | 0.555 | 0.580 |
Dissection length, mm | 91.9 ± 33.1 | 93.0 ± 30.3 | 89.7 ± 37.9 | 0.501 | 0.618 |
Residual true lumen diameter, mm | 2.7 ± 1.6 | 2.9 ± 1.6 | 2.3 ± 1.6 | 2.069 | 0.041 |
Degree of true lumen stenosis, % | Â | Â | Â | 8.929 | 0.012 |
  < 50% | 43 (39.1) | 35 (49.3) | 8 (20.5) |  |  |
  ≥ 50% and ≤ 70% | 32 (29.1) | 18 (25.4) | 14 (35.9) |  |  |
  > 70% | 35 (31.8) | 18 (25.4) | 17 (43.6) |  |  |
Maximum SMA diameter, mm | 13.0 ± 2.4 | 13.2 ± 2.5 | 12.6 ± 2.2 | 1.401 | 0.164 |
Location of maximum SMA diameter | Â | Â | Â | 0.959 | 0.619 |
 Above the LRV plane | 35 (31.8) | 21 (29.6) | 14 (35.9) |  |  |
 on the LRV plane | 71 (64.5) | 48 (67.6) | 23 (59.0) |  |  |
 Below the LRV plane | 4 (3.6) | 2 (2.8) | 2 (5.1) |  |  |
Aortomesenteric angle, ° | 76.3 ± 25.0 | 75.6 ± 25.0 | 77.6 ± 25.1 |  − 0.404 | 0.687 |
Classification | Â | Â | Â | 1.732 | 0.630 |
 I | 16 (14.5) | 10 (14.1) | 6 (15.4) |  |  |
 IIa | 6 (5.5) | 5 (7.0) | 1 (2.6) |  |  |
 IIb | 70 (63.6) | 46 (64.8) | 24 (61.5) |  |  |
 III | 18 (16.4) | 10 (14.1) | 8 (20.5) |  |  |
Celiac trunk dissection | 8 (7.3) | 5 (7.0) | 3 (7.7) | 0.000 | 1.000 |
Iliac artery dissection | 2 (1.8) | 1 (1.4) | 1 (2.6) | – | 1.000 |
Renal artery dissection | 1 (0.9) | 1 (1.4) | 0 (0.0) | – | 1.000 |
Intestinal obstruction | 8 (7.3) | 2 (2.8) | 6 (15.4) | 4.179 | 0.041 |
 Bowel necrosis | 4 (3.6) | 0 (0.0) | 4 (10.3) | 4.913 | 0.027 |