Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany; DZHK (German Center for Cardiovascular Research), partner site Berlin, Germany.
Department of Internal Medicine - Cardiology, German Heart Center Berlin, Berlin, Germany; DZHK (German Center for Cardiovascular Research), partner site Berlin, Germany.
Ann Thorac Surg. 2019 Mar;107(3):e177-e179. doi: 10.1016/j.athoracsur.2018.06.086. Epub 2018 Sep 1.
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.
经导管主动脉瓣置换术（TAVR）在单纯主动脉瓣反流（AR）中具有挑战性，因为随后在非钙化瓣环下植入经导管瓣膜会变得困难。预扩张可以帮助在单纯 AR 中为 TAVR 准备一个稳定的瓣环下区（DLZ），并防止瓣膜迁移。在此，我们报告首例将未覆盖的支架植入非钙化主动脉瓣中作为预扩张策略，以在单纯 AR 中为 TAVR 准备一个易于操作的 DLZ。我们认为这项技术是一种有用的新型工具，可以提高设备的成功率，至少在缺乏专门针对单纯 AR 的 TAVR 设备的情况下是如此。
