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. 2021 Jan 12;5(2):ytaa565. doi: 10.1093/ehjcr/ytaa565

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© The Author(s) 2021. Published by Oxford University Press on behalf of the European Society of Cardiology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Transthoracic echocardiography after transcatheter aortic valve implantation. (A, B) Under own junctional rhythm. Left ventricular outflow tract obstruction with systolic anterior motion of the mitral valve (arrow). The anterior mitral leaflet is thickened. (C) Systolic anterior motion of the anterior mitral leaflet (arrow) and left ventricular outflow tract obstruction are decreased by right ventricular pacing. (D) The peak flow velocity and pressure gradient are 6.8 m/s and 185 mmHg, respectively, even under right ventricular pacing.