Dr Boris Orlov

Surgical perspective of the tricuspid valve complex
Because the small septal wall leaflet is fairly fixed, there is little room for movement if the
free wall of right ventricular/ tricuspid annulus should dilate.
Dilatation of the tricuspid annulus occurs primarily in its anterior/posterior (mural) aspect,
which can result in significant functional TR as a result of leaflet malcoaptation
The septal aspect of the tricuspid annulus is considered to be analogous to the intertrigonal
portion of the mitral annulus in that it is relatively spared from annular dilation