Video 42.14 View from the apex toward the left-sided atrioventricular (AV) valve, from a transthoracic echo
View from the apex toward the left-sided atrioventricular (AV) valve, from a transthoracic echo. Note that in an AVSD, the “cleft” is formed by the commissure between the anterior and posterior bridging leaflet. The direction is from the left toward the interventricular septum.