Transcatheter aortic valve replacement (TAVR) is a minimally invasive procedure to replace a narrowed aortic valve that fails to open properly (aortic valve stenosis). Transcatheter aortic valve replacement is sometimes called transcatheter aortic valve implantation (TAVI).
TAVR is usually reserved for people who can't undergo open-heart surgery or for people for whom surgery presents too many risks.
TAVR can relieve the signs and symptoms of aortic valve stenosis and may improve survival in people who can't undergo surgery or have a high risk of surgical complications.
Mayo Clinic's approach