Author + information
- Joseph Burke,
- Ernesto Salcedo,
- Tamas Seres,
- Robert Quaife,
- Paola Roldan,
- Esra Donmez,
- John Messenger and
- John Carroll
Background: Multiple trials have demonstrated that MR improves following TAVR. No data exists comparing the effect of balloon expandable (BE) and self-expanding (SE) TAVR on MR. In this study, the post-TAVR structural change of the mitral valve annulus (MVA) was measured using 3D MV reconstruction from transesophageal echo (TEE) and the changes were correlated to change in MR.
Methods: This single center retrospective study included TAVR patients from 06/2015 through 02/2016. Full volume or 3D zoom images of the mitral valve were analyzed pre and post TAVR. 3D mitral valve reconstruction was performed using Mitral Valve Navigator software (Philips). 3D MVA antero-posterior (A-P), bicommissural (AL-PM) diameter and ellipticity were measured pre-and post-TAVR. MR was graded with pre-TAVR and pre-discharge transthoracic echo.
Results: There was no significant difference between the TAVR valve diameters of the BE (25.6 ± 3mm) and SE (26.1 ± 1mm) TAVR groups. 19/39 patients had reduced MR following TAVR. This was not correlated with a statistically significant change in MVA dimensions. See Table for subgroup analysis.
Conclusions: This is the first study to compare the effect of BE and SE TAVR on the dimensions of the MVA. There was a significant decrease in A-P diameter and increase in ellipticity in BE TAVR. The difference in distortion may reflect the effect of BE valve deployment or the fact that the MVA was larger in the BE TAVR group. There was no significant difference to MR improvement between the two groups
Poster Hall, Hall C
Friday, March 17, 2017, 10:00 a.m.-10:45 a.m.
Session Title: Novel Echocardiographic Methods for Assessing Cardiac Function
Abstract Category: 28. Non Invasive Imaging: Echo
Presentation Number: 1120-238
- 2017 American College of Cardiology Foundation