Bĕlohlávek M, Vondrácek V, Kautzner J, Munclinger M
Cas Lek Cesk. 1989 Sep 15;128(38):1192-5.
The authors examined by one- and two-dimensional echocardiography 28 patients with valvular prostheses, divided into groups, depending on the type and position of the prosthesis. They assessed the excursions of the disc or ball, the speed of opening and closure, time intervals A2-MVO and S1-AVO and the size of the left cardiac compartments. They investigated the occurrence of paradoxical movements of the interventricular septum, the diastolic wave in mitral prostheses and the flutter of the anterior cusp of the mitral valve in aortic prostheses. The results of these observations were confronted with data in the literature. In the investigated group of patients no pathological findings were detected. In mitral ball prostheses greater excursions were recorded than in eccentric disc-shaped prostheses. The closing speed was always greater than the opening speed. The A2-MVO interval was approximately double, as compared with S1-AVO. It was found that the paradoxical movement of the interventricular septum persists longer than reported in the literature. One-dimensional echophonocardiography and 2-D echocardiography retains its importance for the follow-up of patients with valvular prostheses.
作者通过一维和二维超声心动图对28例人工瓣膜患者进行了检查，根据人工瓣膜的类型和位置将其分组。他们评估了瓣盘或球的活动度、开闭速度、时间间期A2-MVO和S1-AVO以及左心腔大小。他们研究了室间隔矛盾运动、二尖瓣人工瓣膜的舒张期波以及主动脉瓣人工瓣膜中二尖瓣前叶扑动的发生情况。这些观察结果与文献中的数据进行了对比。在所研究的患者组中未发现病理结果。二尖瓣球型人工瓣膜的活动度记录值高于偏心盘状人工瓣膜。关闭速度总是大于开放速度。与S1-AVO相比，A2-MVO间期约为其两倍。发现室间隔矛盾运动持续的时间比文献报道的更长。一维超声心动图和二维超声心动图对人工瓣膜患者的随访仍具有重要意义。
