Comparison of pulmonary vein velocities in the three groups of patients evaluated
| Atrial septum | Peak systolic V mean (cm/s) | Peak diastolic V mean (cm/s) | S/D ratio mean | Peak rev V mean (cm/s) |
|---|---|---|---|---|
| Normal (n = 77) | 21.4 | 20.0 | 1.1 | 4.0 |
| HLHS (open, n = 6) | 27.7 | 18.9 | 1.51-150 | 1.4 † |
| HLHS (restrictive, n = 7) | 33.7† | 16.1 | 2.26 † | 22.0 † |
↵1-150 p < 0.05; †p < 0.01 vcontrol group. Values which achieved statistical significance are shown. HLHS, hypoplastic left heart syndrome; rev, reversal wave; S/D, ratio of systolic to diastolic velocities; V, velocity.