Amr E Abbas, Houman Khalili, Luai Madanat, Sammy Elmariah, Francis Shannon, Karim Al-Azizi, Thomas Waggoner, Thomas Pilgrim, Taishi Okuno, Anthony Bavry, Julien Ternacle, Jared Christensen, Josep R Cabau, Michael Mack, Philippe Pibarot
BACKGROUND: The role of echocardiography in deriving transvalvular mean gradients from transaortic velocities in aortic stenosis (AS) and in structural valve degeneration (SVD) is well established. However, reports following surgical aortic valve replacement, post-transcatheter aortic valve replacement (TAVR), and valve-in-valve-TAVR (ViV-TAVR) have cautioned against the use of echocardiography-derived mean gradients to assess normal functioning bioprosthesis due to discrepancy compared with invasive measures in a phenomenon called discordance...
July 26, 2023: Journal of the American Society of Echocardiography