房室交界区三角的观察和测量

OBSERVATION AND MEASUREMENT OF THE TRIANGLE OF ATRIOVENTRICULAR JUNCTION AREA

在110例人心(成人70,儿童40)上,观察了由冠状窦口、Todaro腱及三尖瓣隔瓣附着缘围成的房室交界区三角,对上述各边界及室间隔膜部进行了测量。三角的三个角各有不同结构占据,前上角为房室结,顶角有冠状窦和心最小静脉开口,后下角深面为右冠状动脉“U”形袢。就上述特点结合临床进行了讨论。

The triangle of atrioventricular junction area of 110 human hearts(adults 70,children 40)has been observed and measured.The morphological features of the opening and valve of the coronary sinus,membranous part of the interventricular septum,Todaro’s tendon and attachment of the septal cusp of tricuspid valve were observed,and their length,width were measured.Different angles of the trigon are occupied by different structures respectively.The atrioventricular node is in the anterior superior angle,the openings of the coronary sinus and smallest veins are in the upper angle,and deep to the inferior angle,there is the coronary artery.Their clinical significance has been discussed.