Usefulness of Mitral Annular Systolic Velocity in the Detection of Left Ventricular Systolic Dysfunction: Comparison with Three Dimensional Echocardiographic Data

Abstract

In this study, S' velocity measured by TDI showed a significant correlation with three dimensional LVEF and can be used to detect patients with LV systolic dysfunction.

Predictors of successful extracorporeal membrane oxygenation (ECMO) weaning after assistance for refractory cardiogenic shock

“…This effect was more apparent for weaned patients, who therefore displayed greater contractile reserves when challenged by the weaning trial. In contrast, TDSa was only modestly altered by flow reduction, suggesting its relative preload and afterload independence [24]. Lower ECMO flow before the weaning trial was also associated with successful weaning, reflecting reduced need for mechanical assistance in these patients.…”

Functional assessment of the fetal heart: a review

“…Broadly speaking, S′ corresponds with LV systolic function, and has been shown to correlate with EF as measured by 3DUS83. Changes in the S′ waveform have been demonstrated as soon as 15 seconds after the onset of ischemia in experimental animal models84.…”

A Novel Index Combining Diastolic and Systolic Tissue Doppler Parameters for Prediction of Atrial Fibrillation Recurrence

“…Diastolic dysfunction and systolic dysfunction lead to AF by increasing of left ventricular and atrial pressure and also increase recurrence rate after cardioversion . E/Ea ratio is related to left ventricular diastolic function, and Sa velocity is related to left ventricular systolic function . The novel indices could provide further information about the combining (systolic and diastolic) function of the left ventricle.…”

“…9,10 E/Ea ratio is related to left ventricular diastolic function, and Sa velocity is related to left ventricular systolic function. 5,6 The novel indices could provide further information about the combining (systolic and diastolic) function of the left ventricle. Recent studies showed that these new indices are related to left ventricular end-diastolic pressure (LVEDP) and N-terminal pro-brain natriuretic peptide (NTproBNP) levels, and the indices correlation with LVEDP and NTproBNP are better than E/Ea ratio.…”

“…Tissue Doppler imaging (TDI) is an echocardiographic technique employing the Doppler principle to measure the velocity of myocardial segments and other cardiac structures. Pulse‐wave Doppler (PWD) mitral velocities (E = early diastolic mitral velocity, A = late diastolic mitral velocity) and TDI mitral annular diastolic velocities (Ea = early diastolic mitral annular velocity, Aa = late diastolic mitral annular velocity) show the myocardial diastolic function, and TDI mitral annular systolic velocities (Sa = systolic mitral annular velocity) show the myocardial systolic function . AF is related with the impaired left ventricular systolic and diastolic function.…”