Two-dimensional echocardiographic demonstration of left atrial thrombi in patients with prosthetic mitral valves.
Two-dimensional echocardiographic demonstration of left atrial thrombi in patients with prosthetic mitral valves.
复制标题
人工二尖瓣患者左心房血栓的二维超声心动图显示。
作者：
F. Mikell;R. Asinger;T. Rourke;Morrison Hodges;B. Sharma;Gary S. Francis
虽然M型超声心动图（MME）不是检测左房血栓的可靠方法，但最近的报告表明，二维超声心动图（2DE）在识别心内血栓方面可能比MME更有效。在3例出现动脉栓塞或人工瓣膜功能障碍的人工二尖瓣患者中，2DE显示左心房肿块与血栓一致，而MME为左心房血栓阴性（2例患者）或可疑（1例患者）。所有病例均通过手术或尸检记录血栓形成。心房腔和肿块边缘的清晰描绘，多个超声心动图视图的可视化和系列检查的比较有助于将这些肿块识别为血栓。此外，可视化的肿块具有某些运动模式，这些模式似乎是独特的，可以将心房肿块表征为血栓。
Although M-mode echocardiography (MME) is not a reliable method for detecting left atrial thrombi, recent reports suggest that two-dimensional echo (2DE) may be more effective than MME in identifying intracardiac thrombi. In three patients with prosthetic mitral valves who presented with either arterial embolization or prosthetic valvular dysfunction, 2DE demonstrated left atrial masses consistent with thrombi, while MME was either negative (two patients) or suspicious (one patient) for left atrial thrombus. Thrombi were documented by surgical or postmortem examination in all cases. Clear delineation of the atrial cavity and the margins of the masses, visualization on multiple echocardiographic views and comparison of serial examinations were helpful in identifying these masses as thrombi. In addition, the masses visualized had certain patterns of motion which seem unique and may allow characterization of atrial masses as thrombi.