Comparison of self-expanding and balloon-expandable transcatheter aortic valves morphology

What is it about?

Paravalvular regurgitation after transcatheter aortic valve replacement remains a frequent complication. A better understanding of the prosthesis geometry may be important to improve selection of the best device for each case and possibly reduce the rates of PVR.

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Why is it important?

Self-expanding prosthesis have greater eccentricity and under-expansion. Calcium burden exerts more influence in the final morphology of that type of valve. Calcification and eccentricity are associated with the development of paravalvular regurgitation.