Journal
CIRCULATION-HEART FAILURE
Volume 2, Issue 2, Pages 105-112Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/CIRCHEARTFAILURE.108.822627
Keywords
epidemiology; echocardiography; tissue Doppler imaging; diastole
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Funding
- The European Union [IC15-CT98-0329-EPOGH, LSHM-CT-2006-037093]
- Fonds voor Wetenschappelijk Onderzoek Vlaanderen
- Ministry of the Flemish Community (Brussels, Belgium) [G.0424.03, G.0256.05, G.0575.06]
- Katholieke Universiteit (Leuven, Belgium) [OT/99/28, OT/00/25, OT/05/49]
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Background-Because the process of myocardial remodelling starts before the onset of symptoms, recent heart failure (HF) guidelines place special emphasis on the detection of subclinical left ventricular (LV) systolic and diastolic dysfunction and the timely identification of risk factors for HE Our goal was to describe the prevalence and determinants (risk factors) of LV diastolic dysfunction in a general population and to compare the amino terminal probrain natriuretic peptide level across groups with and without diastolic dysfunction. Methods and Results-In a randomly recruited population sample (n=539; 50.5% women; mean age, 52.5 years), we measured early and late diastolic peak velocities of mitral inflow (E and A), pulmonary vein flow by pulsed-wave Doppler, and the mitral annular velocities (Ea and Aa) at 4 sites by tissue Doppler imaging. A healthy subsample of 239 subjects (mean age, 43.7 years) provided age-specific cutoff limits for normal E/A and E/Ea ratios and the differences in duration between the mitral A and the reverse pulmonary vein flows during atrial systole (AAd-ARd). The number of subjects in diastolic dysfunction groups I (impaired relaxation), 2 (elevated LV end-diastolic filling pressure), and 3 (elevated E/Ea and abnormally low E/A) were 53 (9.8%),76 (14.1 %), and 18 (3.4%), respectively. We used Delta(Ad
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