Ikäheimo M, Takkunen J
Ann Clin Res. 1977 Dec;9(6):321-9.
79 patients studied by cardiac catheterization were also studied by echocardiography to evaluate the reliability and usefulness of echocardiography in making left atrial and ventricular measurements in patients with mitral valve disease. The left atrium was larger than normal in all the patients and especially in those with mitral regurgitation. There was a significant correlation between the mean pulmonary capillary wedge pressure and the left atrial diameter in the patients with a stenotic component, and the left atrial diameter seems to correlate better than the cineangiographic left atrial size with the atrial pressure as the anterior-posterior atrial dilatation is more pressure dependent. In atrial fibrillation the left atrial diameter was greater than in the patients with sinus rhythm, but there was a great overlap in atrial diameters between these patient groups. In 37% of the patients with a mitral regurgitation component a systolic bulge caused by a regurgitant jet was found in the posterior left atrial wall, the appearance and magnitude of which depended more on the properties of the atrial wall and the direction of the regurgitant jet than on the amount of regurgitation. The results concerning left ventricular size and function agreed well with the previous cineangiographic studies. There was good correlation between the cineangiographically and echocardiographically measured left ventricular volumes and ejection fractions, but left atrial dilatation made the correlation less close.
对79例接受心导管检查的患者也进行了超声心动图检查，以评估超声心动图在测量二尖瓣疾病患者左心房和心室方面的可靠性和实用性。所有患者的左心房均大于正常，尤其是二尖瓣反流患者。在有狭窄成分的患者中，平均肺毛细血管楔压与左心房直径之间存在显著相关性，而且由于心房前后径扩张更依赖压力，左心房直径与心房压力的相关性似乎比电影血管造影测量的左心房大小更好。在房颤患者中，左心房直径大于窦性心律患者，但这些患者组之间的心房直径有很大重叠。在37%有二尖瓣反流成分的患者中，左心房后壁发现由反流束引起的收缩期膨出，其外观和大小更多地取决于心房壁的特性和反流束的方向，而不是反流的量。关于左心室大小和功能的结果与先前的电影血管造影研究结果吻合良好。电影血管造影和超声心动图测量的左心室容积和射血分数之间有良好的相关性，但左心房扩张使相关性降低。
