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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