Table 2

Haemodynamic variables, arterial dimensions, and vascular compliance at the proximal reference segment

Unstable patients Stable patients p Value
PS (mm Hg)124 (25)130 (20)0.544
PD (mm Hg)67 (11)68 (11)0.892
LAS (mm2)8.28 (2.68)8.57 (3.46)0.921
LAD (mm2)7.29 (2.56)8.18 (3.40)0.386
LAS−LAD(mm2)0.99 (0.66)0.39 (0.30)< 0.001
Distensibility (per mm Hg)3.09 (2.68)0.94 (0.83)< 0.001
LDS (mm)3.52 (0.53)3.49 (0.69)0.895
LDD (mm)2.63 (0.50)2.88 (0.63)0.158
LDS−LDD (mm)0.88 (0.26)0.62 (0.15)< 0.001
β Stiffness index1.95 (0.94)3.10 (0.96)< 0.001
  • Data are given as mean (SD).

  • LAD, diastolic lumen area; LAS, systolic lumen area; LDD, diastolic lumen diameter; LDS, systolic lumen diameter; PD, diastolic arterial pressure; PS, systolic arterial pressure.