Skip to main content

Table 6 Relationship between dissection features and treatment modality (N = 110)

From: Clinical characteristics and misdiagnosis of spontaneous isolated superior mesenteric artery dissection

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, %

   

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

   

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

   

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

  1. SMA superior mesenteric artery, LRV left renal vein