Changes in mitral annular geometry after aortic valve replacement: a three-dimensional transesophageal echocardiographic study.

Abstract

The mitral annulus undergoes significant geometric changes immediately after AVR. Notably, a 16.3% reduction was observed in the mitral annular area. The anterior annulus underwent a greater reduction in length compared to the posterior annulus, which suggested the existence of a mechanical compression by the prosthetic valve.