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Table 4 Comparison of echocardiographic and stiffness parameters between patients with tricuspid or bicuspid aortic valves in the two DPAA groups

From: Two-dimensional speckle-tracking echocardiography for evaluation of dilative ascending aorta biomechanics

Parameter

Tricuspid aortic valve

Bicuspid aortic valve

p

Aortic annulus (mm)

26.3 ± 2.8

28.4 ± 3.8

NS

Sinus at Valsalva level (mm)

48.9 ± 9.6

43.8 ± 6.5

NS

Sinotubular junction (mm)

43.8 ± 8.5

38.5 ± 4.9

0.02

Ascending aorta in end-diastole (mm)

50.8 ± 7.4

46.0 ± 5.0

0.02

Aortic annulus (mm/m2)

13.6 ± 1.4

14.2 ± 1.3

NS

Sinus at Valsalva level (mm/m2)

25.2 ± 5.0

22.0 ± 2.9

0.02

Sinotubular junction (mm/m2)

22.6 ± 4.3

19.3 ± 2.4

0.004

Ascending aorta in end-diastole (mm/m2)

26.6 ± 6.7

23.2 ± 3.1

NS

2D-ST echocardiographic parameters

 Longitudinal displacement (mm)

  Aortic posterior sinus

−4.6 ± 4.4

−4.7 ± 3.5

NS

  Posterior ascending aorta

−3.5 ± 3.8

−2.5 ± 3.1

NS

  Anterior ascending aorta

−6.7 ± 5.4

−9.5 ± 5.0

NS

  Aortic anterior sinus

−10.0 ± 5.1

−11.7 ± 5.6

NS

  Aortic PW

−4.0 ± 3.6

−3.9 ± 2.9

NS

  Aortic AW

−8.3 ± 4.8

−10.5 ± 5.1

NS

 Transverse displacement (mm)

Aortic posterior sinus

3.1 ± 2.4

4.0 ± 2.6

NS

  Posterior ascending aorta

4.0 ± 3.2

5.4 ± 1.6

NS

  Anterior ascending aorta

−3.4 ± 2.9

−4.8 ± 2.9

NS

  Aortic anterior sinus

−6.4 ± 4.2

−7.7 ± 3.5

NS

  Aortic PW

4.2 ± 2.7

4.8 ± 2.0

NS

  Aortic AW

−4.8 ± 2.5

−6.3 ± 3.1

NS

Longitudinal strain (%)

 Aortic posterior sinus

8.9 ± 10.4

18.8 ± 14.4

0.02

 Posterior ascending aorta

13.7 ± 11.4

15.1 ± 11.5

NS

 Anterior ascending aorta

21.2 ± 11.3

24.8 ± 16.3

NS

 Aortic anterior sinus

11.5 ± 20.9

10.9 ± 12.7

NS

 Aortic PW

11.4 ± 9.3

16.9 ± 11.3

NS

 Aortic AW

15.1 ± 14.0

17.8 ± 12.1

NS

Longitudinal velocity (cm/s)

 Aortic posterior sinus

−5.9 ± 2.6

−5.8 ± 2.6

NS

 Posterior ascending aorta

−5.6 ± 2.1

−6.1 ± 3.0

NS

 Anterior ascending aorta

−5.2 ± 1.8

5.5 ± 1.3

NS

 Anterior sinus

−4.7 ± 2.2

−4.8 ± 2.1

NS

 Aortic PW

−5.8 ± 1.7

−6.0 ± 2.0

NS

 Aortic AW

−4.9 ± 1.8

−5.2 ± 1.5

NS

Arterial stiffness parameters

 Aortic diameter change (mm)

2.5 ± 1.2

2.4 ± 1.4

NS

 Aortic strain (%)

5.3 ± 2.8

5.6 ± 3.2

NS

 Elastic modulus (mmHg)

19.8 ± 13.8

23.4 ± 29.6

NS

 Stiffness index β

0.2 ± 0.1

0.2 ± 0.3

NS

 Aortic distensibility (mmHg)−1

0.2 ± 0.1

0.2 ± 0.1

NS

  1. 2D-ST two-dimensional speckle tracking, AW anterior wall, PW posterior wall, Values are mean (SD) unless otherwise indicated