D'Cruz I, Prabhu R, Cohen H C, Glick G
Br Heart J. 1977 May;39(5):529-35. doi: 10.1136/hrt.39.5.529.
In the echocardiographic assessment of patients with pericardial effusions, the apparent width of the echo-free space between the left ventricular posterior wall and the parietal pericardium is commonly used to estimate the amount of pericardial fluid present. In 4 patients with pericardial effusions, we showed a distinct disparity between the widths of the posterior pericardial space at different levels of the left ventricular posterior wall. In 2 of them, a 'swinging heart' appearance was recorded when the ultrasoound beam was directed caudally, but not when its direction was cephalad or less caudad. It is suggested that the left ventricle should be scanned at all possible sites to minimise potential errors in estimating the amount of a pericardial effusion.
在对心包积液患者进行超声心动图评估时，左心室后壁与心包壁层之间无回声区的表观宽度通常用于估计心包内液体的量。在4例心包积液患者中，我们发现左心室后壁不同水平的心包后间隙宽度存在明显差异。其中2例患者，当超声束指向尾侧时记录到“心脏摆动”现象，但当超声束指向头侧或更偏向头侧时则未记录到。建议应在所有可能的部位对左心室进行扫描，以尽量减少估计心包积液量时的潜在误差。
