Validation of an echocardiographic wall motion index in heart failure due to ischaemic heart disease
Aims: the echocardiographic assessment of left ventricular ejection fraction (LVEF) by geometric methods is limited in many patients because of inadequate views and also in the presence of regional wall motion abnormalities due to ischaemic heart disease (IHD). This study aimed to examine the applic...
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Published in | European journal of heart failure Vol. 3; no. 6; pp. 731 - 737 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
England
Blackwell Publishing Ltd
01.12.2001
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | Aims:
the echocardiographic assessment of left ventricular ejection fraction (LVEF) by geometric methods is limited in many patients because of inadequate views and also in the presence of regional wall motion abnormalities due to ischaemic heart disease (IHD). This study aimed to examine the application of a wall motion index (WMI) method, using a nine-segment LV model in patients with chronic heart failure (CHF) due to IHD.
Methods and Results:
echocardiography was performed in 71 consecutive subjects with CHF due to IHD. WMI could be derived in 70 subjects (99%). The inter-observer variability (repeatability coefficient) of WMI was 0.66, i.e. LVEF±20%. In 66 subjects, LVEF was measured, within 4 weeks, using radionuclide ventriculography (RNV-EF). The inter-observer variability of RNV-EF was ±3.1%. Using the mean of two observations for each method, the Bland-Altman range of agreement for LVEF was 26% (±13%).
Conclusion:
WMI is a widely applicable echocardiographic method for assessing LV systolic function and has moderate agreement with RNV-EF. Unlike RNV-EF, however, WMI is not likely to be a suitable method for the measurement of small, but prognostically important, changes in LV function that may occur in CHF. |
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Bibliography: | ark:/67375/WNG-DFQKHJT5-G ArticleID:EJHF00199-4 istex:F7647F08A8547380F320B7B6C0FC34B29F229AA2 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1388-9842 1879-0844 |
DOI: | 10.1016/S1388-9842(01)00199-4 |