ArticleClinical research in cardiology : official journal of the German Cardiac Society2025
Subtle echocardiographic markers of CAD: looking beyond the LV ejection fraction in stable angina patients.
Article in Clinical research in cardiology : official journal of the German Cardiac Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundA routine echocardiogram aims at identifying only regional wall motion abnormality (RWMA) or left ventricle diastolic dysfunction (LVDD) for coronary artery disease (CAD). When absent, a study is often labeled "normal." This creates an unmet need to identify and add subtle markers of CAD to the routine echocardiogram to increase the diagnostic yield.
methodsLeft ventricle (LV) systolic and diastolic parameters, along with left atrium (LA) strain parameters, were assessed using echocardiography in one hundred three patients of stable angina undergoing coronary angiography and compared with their SYNTAX score-II (SS-II).
resultsThe left ventricle global longitudinal strain (LV-GLS) and LA Volume indexed (LAVi) did not correlate significantly with the SS-II. The LA filling pressures reflected by the ratio of early mitral inflow velocity with early mitral annular velocity (E/e`), however, increased significantly with SS-II, with a cut-off value >10.39 for significant CAD (pvalue <0.001). The LA reservoir function parameters, peak atrial longitudinal strain (PALS), and peak global systolic strain rate (LAsSR) decreased significantly with increasing SS-II (p values of 0.011 and 0.001, respectively). The values < 23.56 for PALS and less than 1.15 for LAsSR, showed a significant association with CAD. The LA conduit function parameter, peak global early diastolic strain rate (LAeSR), also increased significantly with increasing SS-II (p-value <0.001), with values > 1.09 having a good correlation with CAD.
conclusionBesides RWMA and LV-GLS, the LV diastolic and LA strain parameters can be potential echocardiographic markers for CAD in stable angina patients.
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