• J. Thorac. Cardiovasc. Surg. · Sep 2013

    Aortic dimensions in patients with bicuspid and tricuspid aortic valves.

    • Veronica Jackson, Christian Olsson, Per Eriksson, and Anders Franco-Cereceda.
    • Cardiothoracic Surgery Unit at the Department of Molecular Medicine and Surgery, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden. veronica.jackson@karolinska.se
    • J. Thorac. Cardiovasc. Surg. 2013 Sep 1; 146 (3): 605-10.

    ObjectiveWhether patients with bicuspid aortic valves are susceptible not only to ascending aortic dilatation but also to dilatation of the remaining aorta is uncertain. This study evaluated the possible correlation between ascending aortic dilatation and dilatation of the remaining aorta in patients with bicuspid and tricuspid aortic valves, respectively.MethodsThe entire aortas of 97 patients (bicuspid in 62, tricuspid in 35) undergoing replacement of the ascending aorta because of ascending aortic pathology (78 with and 19 without concurrent valve pathology) were preoperatively evaluated using computed tomography scanning.ResultsAortic dimensions distal to the ascending aorta were smaller in patients with bicuspid aortic valves than in patients with tricuspid aortic valves (P < .001): proximal arch: 3.20 ± 0.60 cm/3.80 ± 0.68 cm; distal arch: 2.90 ± 0.60 cm/3.40 ± 0.50 cm; isthmus, 2.95 ± 0.60 cm/3.50 ± 0.60 cm; descending aorta: 2.70 ± 0.50 cm/3.20 ± 0.65 cm; suprarenal aorta: 2.30 ± 0.40 cm/2.70 ± 0.43 cm; infrarenal aorta: 1.90 ± 0.48 cm/2.20 ± 0.35 cm, respectively. Concomitant pathologic dilatation of the descending aorta was more common in patients with tricuspid aortic valves (37%) than in patients with bicuspid aortic valves (5%) (P < .001). Neither valvular pathology nor bicuspid aortic valve phenotype influenced the aortic dimensions in the bicuspid group (P > .2).ConclusionsPatients with bicuspid aortic valves and dilatation of the ascending aorta consistently had smaller dimensions of the remaining aorta compared with patients with tricuspid aortic valves. Concomitant dilatation of the descending aorta was predominantly found in patients with tricuspid aortic valves.Copyright © 2013 The American Association for Thoracic Surgery. Published by Mosby, Inc. All rights reserved.

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