Abstract
Quadricuspid aortic valves (QAVs) are extremely rare. In this case study, we report
a David-V valve-sparing aortic root replacement with reimplantation of a native QAV
in a patient with aortic dilation, normal valve function, and a family history of
aortic dissection. Microscopic pathological examination of the excised section of
the aorta revealed scattered small foci of cystic medical degeneration throughout.
A genetic predisposition for aortic dilation may be present in patients with QAV,
even in the setting of a competent valve. Regular screening for aortic dilation in
patients with known QAV should therefore be considered.
Key Words
Quadricuspid aortic valve - Aortic dilation - Genetics