Percy R F, Conetta D A, Miller A B
Chest. 1984 Jun;85(6):826-8. doi: 10.1378/chest.85.6.826.
Echocardiography is helpful in the identification of extracardiac masses. The role of echocardiography in evaluating the effects of the masses on the heart is not well established. The case presented details the identification of and the evaluation by echocardiography of structural and functional effects of a massively dilated esophagus on the heart. Two-dimensional echocardiography revealed anatomic distortion due to a mass effect of the dilated esophagus on the left heart chambers. M-mode echo recordings demonstrated decreased left atrial and ventricular dimensions with increased atrial and ventricular fractional shortening. These findings normalized after Heller myotomy, without a change of estimated stroke volume.
超声心动图有助于识别心外肿块。超声心动图在评估肿块对心脏影响方面的作用尚未完全明确。本文详细介绍了通过超声心动图对极度扩张的食管对心脏的结构和功能影响进行的识别与评估。二维超声心动图显示，扩张食管对左心腔的肿块效应导致解剖结构变形。M型超声心动图记录显示左心房和心室尺寸减小，心房和心室缩短分数增加。在进行赫勒肌切开术后，这些发现恢复正常，估计的每搏输出量没有变化。
