In:
Echocardiography, Wiley, Vol. 36, No. 4 ( 2019-04), p. 678-686
Abstract:
Application of speckle‐tracking echocardiography ( STE ) provides rapid assessment of tissue‐tracking mitral annular displacement ( TMAD ). We investigated the value of TMAD for the assessment of decreased LV longitudinal deformation in asymptomatic patients with severe or moderate‐to‐severe mitral regurgitation ( MR ) and preserved LV ejection fraction ( LVEF ). Methods We retrospectively studied 50 patients with severe or moderate‐to‐severe organic MR and preserved LVEF ( 〉 60%) in whom global longitudinal strain ( GLS ) was successfully measured by STE . TMAD was quickly assessed in the apical four‐chamber view using STE . We calculated the percentage of TMAD to LV length from the midpoint of mitral annulus to the apex at end‐diastolic (% TMAD ). The study population was divided into two groups: decreased GLS patients ( 〉 −20%; Group A) and preserved GLS patients (≤−20%; Group B). We examined whether % TMAD could be used as a diagnostic factor of decreased GLS . Results % TMAD was significantly lower in Group A than Group B (12.5 ± 0.5 vs 16.8 ± 2.2, P 〈 0.0001). By univariate logistic regression analysis, % TMAD was a diagnostic factor of decreased GLS . By multiple regression analysis, % TMAD remained an independent diagnostic factor of decreased GLS (Odds ratio [ OR ] = 4.21, 95% confidence interval [ CI ] = 1.34–28.94, P 〈 0.0001). A cutoff value of % TMAD 〈 14.6 had a sensitivity of 94% and specificity of 94% for the presence of decreased GLS . Conclusions Tissue‐tracking mitral annular displacement is useful in the assessment of decreased LV longitudinal deformation in asymptomatic patients with severe or moderate‐to‐severe MR and preserved LVEF .
Type of Medium:
Online Resource
ISSN:
0742-2822
,
1540-8175
DOI:
10.1111/echo.2019.36.issue-4
Language:
English
Publisher:
Wiley
Publication Date:
2019
detail.hit.zdb_id:
2041033-5
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