Lenox C C, Hashida Y, Anderson R H, Hubbard J D
Int J Cardiol. 1985 Jul;8(3):251-60. doi: 10.1016/0167-5273(85)90216-5.
The incidence of electrical instability of the heart is high in patients with absence of the right and persistence of the left superior caval vein when the latter connects to the coronary sinus. It has been suggested that a large coronary sinus may influence the susceptibility to arrhythmias. we studied the conduction tissues of 8 hearts from the cardiopathological collection of Children's Hospital of Pittsburgh. Six of these specimens had a persistent left superior caval vein connecting to the coronary sinus. There were 4 with absence of the right superior caval vein, 3 of which were in the group with persistent left veins. We evaluated the sinus node and the specialized atrioventricular junctional area, comparing them with known normals. The coronary sinus varied in size from through it. The size did not alter the histology of the adjacent conduction tissue. In contrast, the sinus node was abnormal in 3 of the 4 hearts with absent right superior caval vein. This may be the key factor in the development of arrhythmias when the right superior caval vein is absent or abnormal.
当右上腔静脉缺如且左上腔静脉持续存在并连接至冠状窦时，心脏电不稳定在这类患者中的发生率较高。有人提出，粗大的冠状窦可能会影响心律失常的易感性。我们研究了匹兹堡儿童医院心脏病理标本库中8颗心脏的传导组织。其中6个标本存在连接至冠状窦的左上腔静脉持续存在。有4例右上腔静脉缺如，其中3例在左上腔静脉持续存在的组中。我们评估了窦房结和特殊的房室交界区，并将它们与已知的正常情况进行比较。冠状窦大小不一。其大小并未改变相邻传导组织的组织学结构。相比之下，4例右上腔静脉缺如的心脏中有3例窦房结异常。当右上腔静脉缺如或异常时，这可能是心律失常发生的关键因素。
