Comparison of morphometric and haemodynamic variables in Williams patients with and without hypertension
| Variable |
Hypertensive Williams patients (n=9) |
Normotensive Williams patients (n=12) |
| Intima–media thickness (mm) | 0.68 (0.07) | 0.61 (0.04) |
| Distensibility (mm Hg−1.10−2) | 1.0 (0.4) | 1.1 (0.3) |
| Cross sectional compliance (mm2.mm Hg−1) | 0.18 (0.06) | 0.14 (0.04) |
| Circumferential wall stress (mm Hg.102) | 2.5 (0.6) | 2.1 (0.5) |
| Young's elastic modulus (Einc) (mm Hg.102) | 9.5 (7.0) | 7.4 (2.0) |
Values are mean (SD).