Table 3

Strain analysis and mitral valve anatomic features

Population (n=400)SMR without SAD (n=200)SADMR (n=200)P value
LA strain, %12.35±7.515.51±8.639.71±4.97<0.001
LVGLS, %−6.57±3.3−6.26±3.22−6.86±3.430.14
Mitral annular diameter/BSA, cm/m22.03±0.381.84±0.372.18±0.36<0.001
Anterior leaflet length/annular diameter0.62±0.090.67±0.910.58±0.76<0.001
Posterior leaflet length/annular diameter0.61±0.090.66±0.870.58±0.78<0.001
Anterior leaflet angle, degrees34.2 (26.8, 42.1)41.19 (36.29, 46.07)28.51 (24.16, 33.48)<0.001
Posterior leaflet angle, degrees35.7±10.241.54±8.8630.64±8.54<0.001
Tenting height. cm1.34 (1.1, 1.6)1.55 (1.33, 1.79)1.14 (0.91, 1.38)<0.001
  • Significan p-values (<0.05) are highlighted in bold.

  • BSA, body surface area; LV, left atrium; LVGLS, left ventricular global longitudinal strain; SADMR, severe atrial dilation mitral regurgitation.