Transcatheter mitral valve‐in‐valve implantation is a preferred treatment for degenerating mitral bioprosthetic valves in high‐risk surgical patients. A balloon‐expandable transcatheter heart valve delivered through a postero‐inferior transseptal puncture is deployed within the prosthesis over a guidewire secured in the left ventricle. Patients with aneurysmal left atrium and altered angulation between the planes of atrial septum and mitral prosthesis have unstable position of the guidewire that flips out of the left ventricle into the left atrium when the valve delivery system is advanced. Instead of a transapical access to snare the guidewire and create a railroad in such instances, we report a new technique of transarterial retrograde snaring of the guidewire in the left ventricle for stabilization.

中文翻译：

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一种新的简单技术，用于在经导管二尖瓣瓣膜植入过程中稳定左心室内的导丝位置


经导管二尖瓣瓣内植入术是高危手术患者二尖瓣生物瓣膜退化的首选治疗方法。通过后下房间隔穿刺输送的球囊扩张型经导管心脏瓣膜通过固定在左心室内的导丝部署在假体内。患有左心房动脉瘤且房间隔和二尖瓣假体平面之间角度改变的患者，当瓣膜输送系统前进时，导丝的位置不稳定，导丝从左心室翻转到左心房。在这种情况下，我们报告了一种在左心室中经动脉逆行圈套导丝以实现稳定的新技术，而不是通过经心尖进入圈套导丝并创建铁路。