Vascular aging in large arteries plays an important role in contributing to cardiovascular morbidity and mortality.[1]Structural changes include an increase in wall thickness, intima-media thickening ratio is widely attributed to sub-clinical atherosclerosis and it is independently associated with future cardiovascular events.[1]
The most marked functional change in large arteries with age consists in a real "stiffening".Arterial stiffness, assessed using pulse wave velocity (PWV), is also a strong independent predictor of cardiovascular events;[1] it plays an important role in terms of age-related increase in systolic blood pressure and pulse pressure,[2] which are both components of blood pressure closely associated with cardiovascular risk in middle-aged or elderly subjects.