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Transcatheter Aortic Valve Implantation (TAVI) is an aortic valve replacement performed without surgery that treats patients with severe, symptomatic aortic stenosis.
The TAVI delivery system is placed over a guidewire and across the native aortic valve (pink arrowhead). During implantation, a pigtail catheter is placed into the coronary cusp to verify location of the transcatheter valve relative to the aortic annulus. The valve is deployed by inflating a balloon (blue arrowhead) (A).
After implantation, aortography is performed to verify correct aortic valve deployment and evaluate valvular or paravalvular regurgitation (B).
Transthoracic echocardiography in short axis (C, left) and long axis (C, right) views also verifies correct valve deployment and quantifies valvular or paravalvular aortic regurgitation.
Click the Related Article link for a complete review of the procedure.
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