class="head no_bottom_margin" id="sec1title">IntroductionPrimary mitral regurgitation (MR) is most commonly due to mitral valve (MV) prolapse (Carpentier's classification type II), and conventional surgical repair or replacement is the usual surgical treatment. Off-pump MV repair with expanded polyfluoroethylene (ePTFE) chordal insertion using the Harpoon TSD-5 device (Harpoon Medical, Baltimore, MD) is an alternative to conventional MV surgery for severe MR in selected cases. The advantages of this procedure include lack of requirement for sternotomy, cardiopulmonary bypass, aortic cross clamp, or cardioplegia. However, currently the device is suitable only for highly selected patients, namely, those with MR due to P2 prolapse only who have favorable anterior mitral leaflet anatomy to allow good coaptation following procedure completion. We describe the case of a patient with severe MR due to P2 prolapse who underwent MV repair using the Harpoon TSD-5 device.
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机译：<！-fig ft0-> <！-fig @ position =“ position” anchor“ == f4-> <！-fig mode =” anchred“ f5-> <！-fig / graphic | fig / alternatives / graphic mode =“ anchored” m1-> class =“ head no_bottom_margin” id =“ sec1title”>简介原发性二尖瓣反流（MR）通常是由于二尖瓣（MV）脱垂（ Carpentier的分类为II型），而常规的手术修复或置换是通常的手术治疗。使用Harpoon TSD-5装置（Harpoon Medical，巴尔的摩，马里兰州），通过扩大的聚氟乙烯（ePTFE）弦插入进行非体外循环MV修复，在某些情况下可替代常规MV手术，用于重度MR。该方法的优点包括不需要胸骨切开术，体外循环，主动脉夹钳或心脏麻痹。但是，目前该设备仅适用于高度挑剔的患者，即仅因具有P2脱垂而患有MR的患者，且这些患者具有良好的二尖瓣前叶解剖结构，可以在手术完成后实现良好的适应性。我们描述了因使用P2脱垂而发生严重MR的患者，并使用Harpoon TSD-5设备进行了MV修复的情况。
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