Mok Michael, Dumont Eric, Doyle Daniel, Rodés-Cabau Josep
Quebec Heart & Lung Institute, Laval University, Quebec City, Quebec, Canada.
J Card Surg. 2012 Sep;27(5):546-8. doi: 10.1111/j.1540-8191.2012.01492.x. Epub 2012 Jul 4.
In transcatheter aortic valve implantation procedures using balloon-expandable valves, the valve is deployed by rapid balloon inflation within a short period of rapid ventricular pacing. This system and deployment technique is generally considered to be nonrepositionable. We illustrate with two cases (transapical and transfemoral) the possibility to partially reposition the valve during its deployment if a slow balloon inflation technique were employed-a technique that may minimize the risk of valve mal-positioning and its attendant complications.
在使用球囊扩张瓣膜的经导管主动脉瓣植入手术中，瓣膜通过在短时间快速心室起搏期间快速球囊充气来展开。该系统和展开技术通常被认为是不可重新定位的。我们通过两个病例（经心尖和经股动脉）说明，如果采用缓慢球囊充气技术——一种可将瓣膜位置不当及其相关并发症风险降至最低的技术，在瓣膜展开过程中有可能对其进行部分重新定位。
