Background: The aortic stiffness has widely been reported as an independent indicator of all–cause mortality and cardiovascular diseases. Traditional methods for measuring arterial stiffness in vivo involve either invasive procedures or provide a global average estimate. An attractive alternative for noninvasive estimation of local arterial stiffness is based on pulse wave imaging (PWI), a meth...

OBJECTIVES The goal of this study was to investigate the relation between serum cholesterol, arterial stiffness and central blood pressure. BACKGROUND Arterial stiffness and pulse pressure are important determinants of cardiovascular risk. However, the effect of hypercholesterolemia on arterial stiffness is controversial, and central pulse pressure has not been previously investigated. METH...

Exercise markedly influences pulse wave morphology, but the mechanism is unknown. We investigated whether effects of exercise on the arterial pulse result from alterations in stroke volume or pulse wave velocity (PWV)/large artery stiffness or reduction of pressure wave reflection. Healthy subjects (n = 25) performed bicycle ergometry. with workload increasing from 25 to 150 W for 12 min. Digit...

BACKGROUND Arterial stiffening with increased pulse pressure is a leading risk factor for cardiovascular disease in the elderly. We tested whether ALT-711, a novel nonenzymatic breaker of advanced glycation end-product crosslinks, selectively improves arterial compliance and lowers pulse pressure in older individuals with vascular stiffening. METHODS AND RESULTS Nine US centers recruited and ...

OBJECTIVE To compare pH and PCO2 values of simultaneously obtained arterial, arterialized capillary, and venous blood samples and also to compare oxygen saturation (ASaO2) measured in arterial blood and oxygen saturation by pulse oximetry (PSaO2). METHODS Prospective study was done in the children admitted in the Pediatric Intensive Care Unit of Christian Medical College Hospital Vellore, req...

OBJECTIVES We hypothesized that one minus the slope of diastolic on systolic blood pressure in individual 24-h ambulatory blood pressure recordings (ambulatory arterial stiffness index) might reflect arterial stiffness and predict cardiovascular mortality. METHODS In volunteers and a population recruited in China, we studied concordance between ambulatory arterial stiffness index and establis...

Intra-aneurysmal pressure was studied in an experimental model of saccular aneurysm in dogs, using a vein pouch grafted onto a common carotid arterial bifurcation. The mean and the pulse pressures were recorded simultaneously from within the aneurysm and within the common carotid artery, before and after 50% proximal carotid artery stenosis. These experiments were performed under systemic normo...

BACKGROUND Increased arterial stiffness and higher plasma natriuretic peptide and homocysteine levels are associated with elevated risk for cardiovascular disease. Little is known about the relations of natriuretic peptides and homocysteine to arterial wall stiffness in the community. METHODS AND RESULTS We assessed the relations of plasma N-terminal atrial natriuretic peptide, B-type natriur...