Asayama J, Matsuura T, Endo N, Matsukubo H, Furukawa K
Am J Cardiol. 1977 Oct;40(4):620-3. doi: 10.1016/0002-9149(77)90080-7.
A huge saccular idiopathic dilatation of the right atrium was detected with angiography and echocardiography in a 75 year old man. Cardiac catheterization data were compared with data obtained 4 years earlier. Idiopathic right atrial enlargement is not usually accompanied by tricuspid valve disease, but in this case tricuspid insufficiency did occur over a period of 4 years, possibly as a complication in the late stage of idiopathic right atrial enlargement.
血管造影和超声心动图检查发现一名75岁男性的右心房存在巨大的特发性囊状扩张。将心脏导管插入术数据与4年前获得的数据进行了比较。特发性右心房扩大通常不伴有三尖瓣疾病，但在该病例中，三尖瓣关闭不全在4年的时间里确实出现了，这可能是特发性右心房扩大后期的一种并发症。
