Naqvi Tasneem Z, Nagai Tomoo, Atar Shaul, Siegel Robert J
Cardiac Non-Invasive Laboratory, Division of Cardiology, Department of Medicine, Cedars-Sinai Medical Center and UCLA School of Medicine, 8700 Beverly Boulevard, Los Angeles, CA 90048, USA.
J Am Soc Echocardiogr. 2002 Apr;15(4):379-81. doi: 10.1067/mje.2002.116827.
Time of appearance of agitated saline contrast in the left atrium is one of the distinguishing features between intracardiac and intrapulmonary shunt. We report a patient with hepatic cirrhosis who had intrapulmonary shunting and had appearance of peripheral venous saline contrast injection in the left heart chambers within 3 cardiac cycles after its appearance in the right heart chambers despite absence of an intracardiac shunt. Thus, time of appearance of saline contrast in the left heart chambers should not be the sole criterion to distinguish intracardiac from intrapulmonary shunt.
左心房出现搅动盐水造影剂的时间是心内分流和肺内分流之间的区别特征之一。我们报告一例肝硬化患者，其存在肺内分流，尽管没有心内分流，但在右心腔出现外周静脉盐水造影剂后3个心动周期内，左心腔就出现了该造影剂。因此，左心腔出现盐水造影剂的时间不应作为区分心内分流和肺内分流的唯一标准。
