Presence of Paradoxical Mid-Systolic Longitudinal Strain (Stretching) with Speckle Tracking in the Basal Inferior-to-Lateral Segments in Mitral Valve Prolapse

Background and Purpose: Abnormality in the motion of the inferior papillary muscle was found in an early study of mitral valve prolapse (MVP). We visually observed an abnormal movement not only in the inferior wall but also in the anterolateral and inferolateral basal walls in several patients with MVP. Therefore, the aim of this work was to analyze these findings using strain (Speckle Tracking—STE).