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Table 5 Arterial stiffness parameters of the ascending aorta estimated by echocardiography

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

Parameter

Patient groups

p

Controls

Group 1 (≤45 mm)

Group 2 (>45 mm)

Controls vs. group 1

Controls vs. group 2

Group 1 vs. group 2

Aortic diameter change (mm)

1.9 ± 1.3

2.6 ± 1.3

2.2 ± 1.2

NS

NS

NS

Aortic strain (%)

6.3 ± 4.8

6.6 ± 3.4

4.4 ± 2.4

NS

0.028

0.03

Elastic modulus (mmHg)

13.1 ± 11.9

14.2 ± 10.6

23.9 ± 24.2

NS

NS

NS

Stiffness index β

0.1 ± 0.1

0.1 ± 0.1

0.2 ± 0.3

NS

NS

NS

Aortic distensibility (mmHg−1)

0.3 ± 0.3

0.2 ± 0.1

0.1 ± 0.1

NS

0.001

NS

  1. Values are mean (SD) unless otherwise indicated