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[A] Distribution of patients undergoing valve-sparing aortic root replacement according to type of aortic valve. [B] Age distribution of tricuspid and bicuspid aortic valve patients. [C] Distribution of patients (number, %) with a bicuspid aortic valve according to Sievers’ classification. [D] Distribution of arch replacement during the study period according to valve type. TAV= tricuspid aortic valve; BAV= bicuspid aortic valve.
