What are the challenges of echocardiography in the workup of aortic regurgitation (AR) following transcatheter aortic valve replacement (TAVR)?

Updated: Nov 19, 2018
  • Author: Stanley S Wang, JD, MD, MPH; Chief Editor: Terrence X O'Brien, MD, MS, FACC  more...
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Answer

Echocardiographic assessment of AR following TAVR is much more challenging because the AR is usually paravalvular and occurs in the context of acute hemodynamic changes, as well as prosthetic materials that may impair image quality. Proposed TEE criteria for identifying significant AR include a regurgitant jet extending below the LV outflow tract, multiple AR jets, holodiastolic flow reversal in the descending aorta, and circumferential extent of the jet in short axis (>10% moderate, ≥ 30% severe). [6] Further research is needed to validate these criteria for clinical application.


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