Journal
JOURNAL OF CARDIAC FAILURE
Volume 15, Issue 8, Pages 658-664Publisher
CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS
DOI: 10.1016/j.cardfail.2009.03.006
Keywords
Hypertension; heart failure; arterial stiffness; diastolic function
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Funding
- NCRR NIH HHS [M01 RR 02635] Funding Source: Medline
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Background: Hypertension is an important risk factor for the development of heart failure with preserved ejection fraction. Although heart failure in hypertensive patients is usually ascribed to intrinsic myocardial abnormalities, noncardiac factors may contribute. Methods and Results: Using arterial tonometry and Doppler echocardiography, we assessed arterial stiffness and cardiac diastolic function in 53 individuals with ejection fraction > =0.50, including 23 with hypertension but no heart failure, 16 with hypertension and heart failure, and 14 healthy, normotensive controls. Relative to healthy controls and hypertensives, subjects with heart failure had higher systolic blood pressure, body mass index, creatinine, and left ventricular mass. Diastolic function, as estimated by myocardial relaxation velocity, was not different among the 3 groups. Peripheral arterial stiffness was similar across all groups, but key measures of central aortic stiffness (carotid-femoral pulse wave velocity, characteristic impedance, forward wave amplitude) steadily increased with progression from healthy to hypertensive to heart failure despite adjustment for body mass index, systolic blood pressure, and renal function and were positively correlated with both left ventricular mass and filling pressure. Conclusions: We conclude that patients with heart failure and preserved ejection fraction have increased central aortic stiffness relative to age-matched healthy and hypertensive subjects without heart failure. These changes exceed differences in diastolic function and suggest that abnormal ventricular-vascular coupling may contribute to the pathophysiology of heart failure with preserved ejection fraction. (J Curdiac Fail 2009;15:658-664)
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