Follow up data
| Data are mean (SD) or median (range). | |
| Echocardiography | |
| Ascending aortic velocity (m/s) | 1.9 (0.57) |
| Descending aortic velocity (m/s)) | 2.2 (0.51) |
| Echocardiographic gradient (mm Hg) | 6.1 (7.8) |
| Time to half peak diastolic velocity (m/s) | 70 (14) |
| Femoral pulses (grade) | 4 (3–4) |
| Blood pressure | |
| Upper limb systolic (mm Hg) | 109 (14) |
| Upper limb diastolic (mm Hg) | 58 (10) |
| Lower limb systolic (mm Hg) | 123 (17.5) |
| Lower limb diastolic (mm Hg) | 68 (12.5) |
| Upper limb systolic centile (mm Hg) | 75 (20) |
| Upper to lower limb gradient (mm Hg) | −15 (17.6) |