True- and pseudo-mitral annular disjunction in patients undergoing cardiovascular magnetic resonance.

ABSTRACT:

Background

Mitral annular disjunction (MAD) is a controversial entity. Recently, a distinction between pseudo-MAD, present in systole and secondary to juxtaposition of the billowing posterior leaflet on the left atrial wall, and true-MAD, where the insertion of the posterior leaflet is displaced on the atrial wall both in diastole or in systole, has been proposed. We investigated the prevalence of pseudo-MAD and true-MAD.

Methods

This was a retrospective study, including consecutive patients referred to cardiovascular magnetic resonance (CMR). MAD was defined as a ≥1 mm displacement between the left atrial wall-mitral valve leaflet junction hinge and the top of the left ventricular wall, measured from cine-CMR images in the three long-axis views. Pseudo-MAD and true-MAD were

SUBMITTER: Stankowski K 

PROVIDER: S-EPMC11786680 | biostudies-literature | 2025 Summer

REPOSITORIES: biostudies-literature