Edge-to-edge repair is a procedure introduced to overcome mitral valve regurgitation. However, it leads to an unusual flow in the left ventricle characterized by twin parallel pulsed jets. This type of flow has not been extensively investigated in the literature. We set up a basic experiment to better characterize this type of flow from a fundamental point of view. Planar time-resolved particle image velocimetry measurements were performed downstream of three configurations of mitral valves corresponding to healthy and repaired valves. The flow field is characterized using velocity profiles, viscous energy dissipation, and time-frequency spectra, and their potential clinical impact is highlighted.

中文翻译：

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通过柔性孔口的脉动双平行射流应用于边缘到边缘的二尖瓣修复

边对边修复是一种用于克服二尖瓣关闭不全的手术。然而，它会导致左心室出现异常流动，其特征是双平行脉冲射流。这种类型的流动在文献中尚未得到广泛研究。我们建立了一个基本实验，以从基本的角度更好地表征这种类型的流动。平面时间分辨粒子图像测速测量在对应于健康瓣膜和修复瓣膜的三种二尖瓣配置的下游进行。流场使用速度剖面、粘性能量耗散和时间-频谱进行表征，并强调了它们的潜在临床影响。