His perfusion pressure is only thirty, even on bypass.

More detail is available at Cerebral perfusion pressure.

Decrease in renal perfusion pressure (detected directly by the granular cells)

Hence the microcirculation in this particular area is extremely sensitive to hypoxia and changes in perfusion pressure.

In this sense, more specifically, the cerebral perfusion pressure can be defined as either:

These cells also respond directly to a decrease in systemic blood pressure which is manifested as a lower renal perfusion pressure.

These conditions tend to decrease the cerebral perfusion pressure but with minimal tissue shifts.

Infusion of cholecystokinin-8 did not change the perfusion pressure.

As a result, cerebral perfusion pressure (the pressure of blood flow in the brain) is reduced; ischemia results.

The two critical perfusion pressures are those across the coronary and cerebral circulations.