Dudiy Yuriy, Brownlee Andrew, Ruiz Carlos E
Hackensack University Medical Center and the Joseph M. Sanzari Children's Hospital, Hackensack, NJ, USA -
J Cardiovasc Surg (Torino). 2016 Jun;57(3):393-400. Epub 2016 Mar 9.
Mitral regurgitation is the most common valvular heart disease. The gold standard for patients not suitable for valve repair is a surgical valve replacement. A significant proportion of patients, however are not referred for surgery due to comorbidities, advanced age or severe LV dysfunction. Transcatheter mitral valve replacement may be a viable therapeutic option for these high risk patients. With improvements in technology and data on the durability of the transcatheter mitral valve, this technology has the potential to be used in a lower risk population. A number of transcatheter systems have emerged recently and are at different stages of investigation. In this review, we outline the key elements and challenges of the transcatheter mitral valve design as well as the status of devices that have reached First in Man status.
二尖瓣反流是最常见的心脏瓣膜病。对于不适合瓣膜修复的患者,金标准治疗方法是外科瓣膜置换术。然而,相当一部分患者由于合并症、高龄或严重左心室功能障碍而未被转诊接受手术。经导管二尖瓣置换术可能是这些高危患者的一种可行治疗选择。随着技术的改进以及经导管二尖瓣耐久性数据的积累,这项技术有可能应用于风险较低的人群。最近出现了多种经导管系统,它们正处于不同的研究阶段。在本综述中,我们概述了经导管二尖瓣设计的关键要素和挑战,以及已进入人体首次应用阶段的器械的现状。