Quadricuspid Aortic Valve on Echocardiogram Quadricuspid Aortic Valve - very rare, usually presents in the 5-6th decade of life w/sign regurg (surgery needed in approx 20% of cases) Ivan Stankovic, MD, PhD @Ivan_Echocardio #Quadricuspid #Aortic #Valve #Echocardiogram #clinical #cardiology #pocus