What Is Cerebral Perfusion Pressure?

Cerebral perfusion pressure (CPP) is the pressure found between the arteries, the so-called differential mean arterial pressure (MAP) and the pressure in the skull (transcranial pressure or ICP). Cerebral perfusion pressure is usually held in a flat layer to provide relaxation or tightening of the cerebral vascular constant, stabilizing blood flow to the brain. This means that the brain receives the right amount of blood, even when the body is at rest or when blood pressure drops.

Cerebral perfusion pressure

Right!

Cerebral perfusion pressure (CPP) is the pressure found between the arteries, the so-called differential mean arterial pressure (MAP) and the pressure in the skull (transcranial pressure or ICP). Cerebral perfusion pressure is usually held in a flat layer to provide relaxation or tightening of the cerebral vascular constant, stabilizing blood flow to the brain. This means that the brain receives the right amount of blood, even when the body is at rest or when blood pressure drops.

Cerebral perfusion pressure (CPP) is the pressure found between the arteries, the so-called differential mean arterial pressure (MAP) and the pressure in the skull (transcranial pressure or ICP).

Cerebral perfusion pressure is usually held in a flat layer to provide relaxation or tightening of the cerebral vascular constant, stabilizing blood flow to the brain. This means that the brain receives the proper amount of blood even if the blood pressure in the rest of the body spikes or drops. This means that the brain receives a proper amount of blood, even when the body is at rest or when blood pressure is reduced.

In many tissues, perfusion pressure is simply the pressure difference between the arterial end (upstream pressure) and the venous side (downstream pressure). In some tissues there is a third pressure consideration, which is external pressure, because if the blood vessel pressure is high, this can limit the flow through the tissue. This situation is called Starling resistance. This situation exists when the brain is under external stress and is a comparative scenario.

Therefore, the correct definition of CPP is:

CPP = MAP ICP (if ICP is higher than JVP)

CPP = MAP JVP (if JVP is higher than ICP)