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  • Title: Less pronounced reverse left ventricular remodeling in patients with bicuspid aortic stenosis treated with transcatheter aortic valve replacement compared to tricuspid aortic stenosis.
    Author: Xiong TY, Wang X, Li YJ, Liao YB, Zhao ZG, Wei X, Xu YN, Zheng MX, Zhou X, Peng Y, Wei JF, Feng Y, Chen M.
    Journal: Int J Cardiovasc Imaging; 2018 Nov; 34(11):1761-1767. PubMed ID: 29915878.
    Abstract:
    To compare reverse left ventricular (LV) remodeling after transcatheter aortic valve replacement (TAVR) between patients with bicuspid aortic valve (BAV) and tricuspid aortic valve (TAV). We retrospectively reviewed data of patients with at least two serial echocardiographic follow-ups (1, 3, 6 months and 1 year) post-TAVR. A total of 116 patients were identified. BAV morphology was documented in 67 patients. LV mass index (LVMi) at baseline was not significantly different between the TAV and BAV group (178.0 ± 6.9 vs. 166.3 ± 6.4 g/m2, P = 0.14). Reverse LV remodeling was observed in both BAV and TAV patients, but the reduction of LVMi from baseline was significantly more pronounced in TAV patients compared with BAV patients from 6 months post-TAVR (- 56.3 ± 8.1 vs. - 30.0 ± 4.7 g/m2, P < 0.01 at 6-month follow-up; - 60.6 ± 7.6 vs. - 37.9 ± 6.2 g/m2, P = 0.02 at 1-year follow-up). EDV value changes during follow-up were similar between patient with TAV and BAV. There were no significant differences in the proportions of patients with more than mild PVL or new permanent pacemaker between TAV and BAV morphology throughout the follow-up. Patients with bicuspid morphology might experience less pronounced reverse LV remodeling post-TAVR than patients with tricuspid morphology.
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