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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