Central Systolic Blood Pressure (SBPao)
What is Central Systolic Blood Pressure?
The central systolic blood pressure (SBPao) is the pressure in the aorta and it is considered as an important haemodynamic parameter. It is a result of the ejected stroke volume and the dampening function of large arteries and propagative and reflected pressure waves. In healthy subjects, SBPao is physiologically lower than peripheral systolic blood pressure due to differences in wall structures.
In comparison with conventional cuff brachial blood pressure, central systolic blood pressure (SBPao) is a better cardiovascular prognostic marker. It can be a good determinant or even preventive factor of the disease prognosis. For example, in individual’s adult with normal central blood pressure in the spurious hypertension phenomenon, which is seen in isolated systolic hypertension, the risk of organ damage can be predicted to be pretty low.
Clinical studies have indicated that central systolic blood pressure (SBPao) has predictive value independent of the corresponding peripheral (brachial) blood pressure. Both, SBPao and pulse pressure are stronger predictors of cardiovascular risk and hypertensive organ damage than brachial blood pressure.
It would be really important to use the proper methodological way and device (non invasively), for assessing and interpreting of the accurate SBPao from precisely calculated peripheral pressure pulses. Non-invasively determined central pulse pressure is more strongly related to vascular hypertrophy, extent of atherosclerosis, and cardiovascular events than is brachial blood pressure. Central systolic blood pressure is more relevant than peripheral pressures for the pathogenesis of cardiovascular disease.
Moreover, it has prognostic significance and the simple and easy Arteriograph measurement can be used for its estimation.
What is the Normal Range of Central Systolic Blood Pressure?
Blood pressure is measured in millimetres of mercury (mmHg) and SBPao is recommended to be below 140 mmHg.