JACC. Cardiovascular imaging
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JACC Cardiovasc Imaging · Feb 2016
3D Assessment of Features Associated With Transvalvular Aortic Regurgitation After TAVR: A Real-Time 3D TEE Study.
This study of 3-dimensional (3D) transesophageal echocardiography (TEE) aimed to demonstrate features associated with transvalvular aortic regurgitation (AR) after transcatheter aortic valve replacement (TAVR) and to confirm the fact that a gap between the native aortic annulus and prosthesis is associated with paravalvular AR. ⋯ 3D TEE successfully demonstrated the features associated with transvalvular AR, such as large prosthetic expansion, elliptical prosthetic shape, and anti-anatomical position of prosthesis. Additionally, effective area oversizing was associated with paravalvular AR.
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JACC Cardiovasc Imaging · Feb 2016
Determinants of New-Onset Atrial Fibrillation in Patients Receiving CRT: Mechanistic Insights From Speckle Tracking Imaging.
The aim of this study was to investigate the factors associated with the development of atrial fibrillation (AF) and to examine the impact of these factors for long-term outcome after cardiac resynchronization therapy (CRT). ⋯ LA functional improvement is essential for AF-free survival after CRT and is an independent predictor of AF-free survival. The improvement in LA Ss and Sa as a means of LA mechanical reserve also predicts long-term event-free survival after CRT independently from LV volume response and new-onset AF.