Scholtz Smita, Horstkotte Dieter, Gummert Jan, Börgermann Jochen, Scholtz Werner
J Heart Valve Dis. 2015 May;24(3):342-4.
Next-generation transcatheter heart valves are designed to overcome procedure-related adverse events such as vascular complications and annulus rupture, and to minimize paravalvular regurgitation. The Direct Flow Medical valve is fully repositionable and shows promising results. The case is presented of Direct Flow Medical valve implantation in a patient with a functional bicuspid aortic valve. Multiple repositioning maneuvers failed to overcome the anatomic difficulties, and this resulted in a moderately high persisting gradient and moderate paravalvular leakage. Surgical valve explantation was necessary which, to the present authors' knowledge, is the first such case of Direct Flow Medical valve explantation to be performed.
新一代经导管心脏瓣膜旨在克服与手术相关的不良事件，如血管并发症和瓣环破裂，并尽量减少瓣周反流。Direct Flow Medical瓣膜可完全重新定位，且已显示出有前景的结果。本文介绍了一例在功能性二叶式主动脉瓣患者中植入Direct Flow Medical瓣膜的病例。多次重新定位操作未能克服解剖学上的困难，这导致了持续存在的中度较高压差和中度瓣周漏。有必要进行外科瓣膜取出术，据作者所知，这是首次进行的Direct Flow Medical瓣膜取出术病例。
