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Updated: Feb 5, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
A Novel Technique for Transcatheter Aortic Valve Replacement in Pure Aortic Regurgitation
Axel Unbehaun1, Christoph Klein2, Semih Buz1
1Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany; DZHK (German Center for Cardiovascular Research), partner site Berlin, Germany.
Abstract:
Transcatheter aortic valve replacement (TAVR) in pure aortic regurgitation (AR) is challenging, because of the subsequent difficulty in anchoring the transcatheter valve in a noncalcified device landing zone (DLZ). Prestenting can help to prepare a stable DLZ for TAVR in pure AR and prevent valve migration. Here we report the first-in-human implantation of an uncovered stent into a noncalcified aortic valve as a prestenting strategy to prepare an easy DLZ for TAVR in pure AR. We consider this technique a useful novel tool to improve device success, at least as long as specific TAVR devices for pure AR are lacking.
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