[Borderline left ventricular ejection fraction is associated with alterations in mitral annular size and function.

Zsolt Kovács1, Árpád Kormányos2, Péter Domsik2

  • 1Kardiológiai Osztály, Szent Rókus Kórház Baja.

Orvosi Hetilap
|December 15, 2018
PubMed

Insights

Borderline left ventricular ejection fraction (LVEF) is linked to mitral annulus (MA) enlargement and reduced function. Three-dimensional speckle-tracking echocardiography (3DSTE) helps identify these changes in patients with subtle LV dysfunction.

Area of Science:

  • Cardiology
  • Echocardiography
  • Cardiac Mechanics

Background:

  • Mitral annulus (MA) morphology and function are altered in various valvular and non-valvular cardiac conditions.
  • These alterations can impact overall cardiac performance and disease progression.

Purpose of the Study:

  • To investigate the relationship between mitral annulus (MA) morphologic and functional characteristics and left ventricular (LV) ejection fraction (EF) using 3DSTE.
  • To differentiate between normal and borderline LV-EF in relation to MA properties.

Main Methods:

  • 146 volunteers underwent comprehensive 2D Doppler echocardiography and 3DSTE.
  • Participants were categorized into two groups based on 3DSTE-derived LV-EF: borderline (50-54%) and normal (≥55%).

Main Results:

  • Subjects with borderline LV-EF exhibited increased LV end-systolic volumes and reduced LV longitudinal strain.
  • Mitral annulus (MA) dimensions (diameter, area, perimeter) were significantly larger in the borderline LV-EF group.
  • Mitral annulus (MA) functional parameters were diminished in individuals with borderline LV-EF.

Conclusions:

  • Borderline LV-EF, as assessed by 3DSTE, is associated with mitral annulus (MA) dilatation.
  • Impaired mitral annulus (MA) function is also observed in conjunction with borderline LV-EF.
  • These findings highlight the utility of 3DSTE in detecting subtle cardiac abnormalities.
Abstract

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