Rosenquist G C, Sweeney L J
Am Heart J. 1975 Feb;89(2):186-8. doi: 10.1016/0002-8703(75)90044-7.
In 39 out of 95 normal specimens, there was either no commissure between the anterior and medial leaflets of the tricuspid valve, which resulted in an interrupted valve margin at the center of the membranous ventricular septum, or an incompletely formed commissure. It is suggested that one end of this spectrum of normal anatomic variations could have a direct relationship to VSD associated with left ventricle-to-right atrial communication.
在95个正常样本中，有39个样本的三尖瓣前叶和中叶之间要么没有连合，导致膜性室间隔中心处瓣膜边缘中断，要么连合形成不完全。有人提出，这种正常解剖变异范围的一端可能与伴有左心室至右心房交通的室间隔缺损有直接关系。
