Pulse Pressure

Pulse pressure and microvessels.

Determinants of pulse pressure.

We have searched to define the major arterial parameters that determine aortic systolic (Ps) and diastolic (Pd) pressure in the dog. Measured aortic flows were used as input to the 2-element windkessel model of the arterial system, with peripheral resistance calculated as mean pressure divided by mean flow and total arterial compliance calculated from the decay time in diastole. The windkessel ...

Investigation of Pressure Pulse Distribution in Porous Media

  Diffusivity equation commonly used for pressure distribution prediction in porous media results from substituting equation of state and continuity equation in Navier-Stokes momentum equation. From mathematical point of view this equation format shows infinite propagation speed for pressure pulse through porous media, which is physically impossible. This issue may caused by numerous assumption...

Ageing and ankle pulse pressure.

BACKGROUND Pulse pressure (PP) is a marker of arterial stiffness. Ageing of the arterial system is accompanied by atherosclerosis of coronary arteries and atherosclerosis of popliteal artery. However, severe impairment of the brachial artery is rare. This study investigates whether there is any significant inter-limb (brachial/ankle) PP difference. METHODS Blood pressure was measured in a gro...

Pressure pulse in small arteries.

• The present study was designed to answer the following questions: (1) What is the pressure gradient that occurs between the large and small arteries; (2) what changes occur in. the dynamic characteristics of the pressure pulse during its transmission from large to small arteries; and (3) do small arteries play an important part in the control of the peripheral vascular resistance, or do they ...