Lemke R, Braun B, Klumpp F, Zehner J, Klaus D
Basic Res Cardiol. 1977 Jan-Feb;72(1):57-70. doi: 10.1007/BF01906301.
We constructed three different mitral valve models in order to investigate the different mechanisms which account for the concordant opening and closing movement of the posterior compared to the anterior mitral valve in mitral stenosis. Three different types of movements are possible: a dorso-anterior movement of the mitral ring, opening and closure of the valve itself and a rotation of the entire valve apparatus. Our in-vitro studies showed that the best explanation for the concordant diastolic movement of the posterior valve is given by the assumption that during the early diastolic opening phase of the valves the whole stenotic valve apparatus is rotated upward, i.e. towards the transducer. This rotation, has a higher amplitude compared to the residual downward-oriented opening movement of the posterior valve.
为了研究二尖瓣狭窄时二尖瓣后叶与前叶协调开闭运动的不同机制，我们构建了三种不同的二尖瓣模型。存在三种不同类型的运动：二尖瓣环的背-前向运动、瓣膜本身的开闭以及整个瓣膜装置的旋转。我们的体外研究表明，对于后叶舒张期协调运动的最佳解释是，在瓣膜舒张早期开放阶段，整个狭窄的瓣膜装置向上旋转，即朝着换能器方向旋转。与后叶残余的向下开放运动相比，这种旋转幅度更大。
