Abnormal Haemodynamic Flow Patterns in Bicuspid Valve Disease.

Abnormal flow patterns in the aortas of those with bicuspid aortic valves (BAVs) are increasingly recognized as important in the pathogenesis of aortic dilatation but pulmonary flow patterns in bicuspid valves have not been studied. Bicuspid valve disease is rare and a small numbers of case reports describe concomitant pulmonary artery dilation similar to the dilation of the ascending aorta, which is often seen in BAVs disease. We examined three cases of bicuspid valve disease, 10 healthy volunteers and 10 patients with BAV disease but a tricuspid valve.