Systolic dysfunction in heart failure with normal ejection fraction: speckle-tracking echocardiography.

Abstract:

:Left ventricular (LV) ejection fraction (EF) and LV end-systolic volumes are important measures of LV global function. However, in many patients with symptoms of heart failure, these measures are within normal limits. This condition is classified as heart failure with normal ejection fraction (HFNEF). Reduced EF and increased end-systolic volume, however, require impaired function in a number of LV segments. Therefore, apparently normal systolic function in HFNEF may reflect limited sensitivity of global EF, and assessment of regional systolic function may provide important diagnostic information. The recently introduced method, speckle-tracking echocardiography (STE), represents a simplified, objective, and angle-independent modality for quantification of regional myocardial deformation. The software uses conventional gray-scale B-mode recordings and tracks myocardial speckles, which serve as natural acoustic markers. Radial and longitudinal myocardial deformation can be measured simultaneously from long-axis recordings, radial and circumferential deformation from short-axis recordings, and LV torsion from assessment of apical and basal short-axis rotation. Experimental and clinical studies have demonstrated that the STE method can assess myocardial function accurately in healthy subjects in the settings of acute and chronic ischemia, dyssynchrony, and cardiomyopathy. So far, no STE studies have been performed regarding HFNEF. The purpose of this article is therefore to illustrate the potential of this novel method.

journal_name

Prog Cardiovasc Dis

authors

Edvardsen T,Helle-Valle T,Smiseth OA

doi

10.1016/j.pcad.2006.08.008

subject

Has Abstract

pub_date

2006-11-01 00:00:00

pages

207-14

issue

3

eissn

0033-0620

issn

1873-1740

pii

S0033-0620(06)00089-2

journal_volume

49

pub_type

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