Abstract
Objective
The appropriate timing of aortic repair in patients with bicuspid aortic valve-related aortopathy remains controversial. We describe the changes in diameter of the non-aneurysmal ascending aorta after aortic valve replacement for bicuspid or tricuspid aortic valve stenosis.
Methods
This retrospective review included 189 patients who had undergone aortic valve replacement for severe stenotic aortic valve with a non-aneurysmal ascending aorta diameter of 45 mm or less between January 2008 and December 2018. A linear mixed-effect model was used to analyze and compare the enlargement rates of the non-aneurysmal ascending aorta at the tubular portion after aortic valve replacement in bicuspid and tricuspid aortic valve patients.
Results
The enlargement rate of the non-aneurysmal ascending aorta after aortic valve replacement was significantly greater in the bicuspid aortic valve group than in the tricuspid aortic valve group (0.36 mm/year vs. 0.09 mm/year, p < 0.001). The specific form of bicuspid aortic valve also affected aorta diameter enlargement: the enlargement rate of 0.85 mm/year in the Type 0 (according to Sievers’ classification) group was approximately five times that in the Non-Type 0 group (p < 0.001). No aortic events were observed, and no patients needed reoperations for the ascending aorta, in either the bicuspid or tricuspid aortic valve groups.
Conclusion
The persistent possibility of progressive ascending aortic dilatation after aortic valve replacement for bicuspid aortic valve stenosis, especially in Type 0 bicuspid aortic valve patients, demands careful post-procedural evaluation of the ascending aorta.
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Hiraoka, T., Furukawa, T., Mochizuki, S. et al. Non-aneurysmal ascending aorta diameter changes after aortic valve replacement in patients with stenotic bicuspid and tricuspid aortic valve. Gen Thorac Cardiovasc Surg 70, 33–43 (2022). https://doi.org/10.1007/s11748-021-01669-3
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DOI: https://doi.org/10.1007/s11748-021-01669-3