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Transcatheter aortic valve-in-valve implantation under cerebral protection in a patient with a deteriorated 19-mm rapid-deployment bioprosthetic valve.

The introduction of transcatheter aortic valve implantation (TAVI) has dramatically improved the treatment of valvular pathologies in high-risk patients. Additionally, transcatheter aortic valve implantation can be successfully applied in patients with deteriorated surgical bioprosthetic valves, representing an attractive alternative to a redo operation. Valve-in-valve transcatheter aortic valve implantations can be especially challenging in patients with a small-diameter prosthesis and patient-prosthesis mismatch. Bioprosthetic valve fracturing or bioprosthetic valve remodeling can be used to increase the valvular opening area and additionally reduce the transvalvular gradients in patients having an aortic valve implant. In this case report, we provide detailed insight and step-by-step guidance for transcatheter aortic valve-in-valve implantation with bioprosthetic valve fracturing/bioprosthetic valve remodeling under cerebral protection in a patient with a deteriorated 19-mm surgically implanted bioprosthesis.