0 relating to the connection between the atrium (= upper space) and ventricle (= lower space) of the heart
1 relating to the heart's AV node (= area of the heart that transmits electrical impulses)
Classification of hearts as univentricular or biventricular on the basis of the atrioventricular junctional arrangement is of practical benefit as will be discussed subsequently.
Our series is unusual because of the presence of a large number of patients with biventricular atrioventricular connections.
The atrioventricular connections through the common atrioventricular valve were equally shared between the ventricles.
Only one posterior node was found in the patients with mirror-imaged arrangement, again with atrial stimulation revealing normal atrioventricular conduction in both patients.
In between the anterior and posterior ridges, the fused atrioventricular cushions are attached, connecting these ridges at the atrioventricular side.
When there are isomeric right appendages, there is usually a common atrioventricular junction, often with double inlet ventricle.
There was moderate degree of residual leakage at two commissures (instead of one) of die tri-leaflet left atrioventricular valve (vertical plane of left ventricle).
In both there was usual atrial arrangement with concordant atrioventricular and ventriculoarterial connections.
