Thilenius O G, Bharati S, Lev M
Am J Cardiol. 1976 Apr;37(5):743-52. doi: 10.1016/0002-9149(76)90369-6.
Twenty-four hearts with cor triatriatum were studied. On the basis of this material and a review of the literature a new classification of "subdivided left atrium" is proposed. Tye A, the most common form of subdivided left atrium, is the classic cor triatriatum with its multiple variations of partial anomalous pulmonary venous drainage; the fossa ovalis can be related to the proximal left atrial chamber (type A, a) or the distal left atrial chamber (type A, b). Type B hearts are related to (but not identical with) total anomalous pulmonary venous drainage into the coronary sinus; the coronary sinus opening is atretic in these hearts; abnormal defects connect the proximal left atrial chamber usually with the right atrium only, rarely also with the distal left atrial chamber. The Type C heart, first reported in this paper, has a superiorly and medially situated proximal chamber, located between the right and distal left atrium; it does not receive any pulmonary veins; the coronary sinus is normally formed. Current morphogenetic hypotheses that satisfactorily explain the Type A b and B heart fail to account for the Type A a and C heart.
对24例三房心患者的心脏进行了研究。基于该研究材料并回顾相关文献，提出了一种新的“左心房细分”分类方法。A型是左心房细分最常见的形式，即典型的三房心，伴有部分肺静脉异常引流的多种变异情况；卵圆窝可与左心房近端腔室相关（A型，a型）或左心房远端腔室相关（A型，b型）。B型心脏与完全性肺静脉异常引流至冠状窦有关（但并不完全相同）；这些心脏的冠状窦开口闭锁；异常缺损通常仅将左心房近端腔室与右心房相连，很少也与左心房远端腔室相连。C型心脏在本文中首次报道，其近端腔室位于上方和内侧，位于右心房与左心房远端之间；它不接受任何肺静脉；冠状窦正常形成。目前能满意解释A型b型和B型心脏的形态发生假说无法解释A型a型和C型心脏。
