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Table 1 Patient characteristics and demographics

From: False lumen pressure estimation in type B aortic dissection using 4D flow cardiovascular magnetic resonance: comparisons with aortic growth

Characteristics

Overall (n = 12)

Stable (n = 4)

Enlarging (n = 8)

p-value

Patient age (years)

54.9 ± 9.6

(range: 31–71)

47.8 ± 11.5

58.5 ± 6.6

0.157

Sex (male/female), n

9/3

3/1

6/2

1.000

Hypertension, n (%)

10 (83)

2 (50)

8 (100)

0.091

Smoking history, n (%)

6 (50)

1 (25)

5 (63)

0.545

History of connective tissue disease, n (%)

3 (25)

2 (50)

1 (12)

0.236

Age of dissection at CMR (years)

3.6 ± 3.3 (range: 0.2–8.0)

7.8 ± 0.3

1.5 ± 1.5

 < 0.001

Maximum diameter at baseline (mm)

41.3 ± 8.4 (range: 29–58)

38.0 ± 6.1

42.9 ± 9.2

0.302

Maximum diameter at CMR (mm)

48.8 ± 8.9 (range: 32–62)

42.3 ± 10.4

51.8 ± 6.8

0.187

Aortic growth rate (mm/year)*

6.1 (1.3–11.0) (range: 0–21.7)

0.6 (0–2.0)

11.1 (3.3–21.7)

0.004

Thoracic aortic dissection length (cm)

25.9 ± 3.6 (range: 18.4–32.4)

27.4 ± 4.1

25.1 ± 3.3

0.364

Entry tear distance from left subclavian artery (mm)*

20.0 (7.5–31)

(range: 0–130)

20.0 (7.5–76)

20.0 (9.5–31)

0.932

Dominant entry tear size by CMR (mm)*

17.8 (14.5–21.3)

(range: 10.8–44.5)

24.3 (14.2–37.8)

17.6 (14.5–20.3)

0.500

Systolic blood pressure (mmHg)

130 ± 18 (range: 98–152)

122 ± 16

134 ± 19

0.307

Diastolic blood pressure (mmHg)

70 ± 13 (range: 49–89)

70 ± 12

70 ± 14

1.000

Pulse pressure by CMR (mmHg)

60 ± 11 (range: 44–80)

52 ± 8

64 ± 11

0.070

Heart rate (bpm)

57 ± 8 (range: 47–75)

57 ± 9

57 ± 8

0.931

  1. *Median (IQR)