What is the normal range for Cerebral Perfusion Pressure (CPP)?

Cerebral Perfusion Pressure (CPP) is a crucial physiological parameter that measures the pressure gradient driving cerebral blood flow. The normal range for CPP is generally accepted to be between 60 to 80 mmHg. However, in some clinical contexts, especially concerning neurological statuses or specific patient conditions, a range of 70 to 90 mmHg can sometimes be emphasized to ensure adequate cerebral perfusion, particularly in patients at risk for ischemic brain injury.

In certain scenarios, maintaining a CPP at least within this upper range can be critical for patients who are experiencing conditions such as traumatic brain injury or after surgery to minimize the risk of secondary brain damage. Thus, while the ideal CPP may often be cited as being in the range of 60-80 mmHg in a general context, a target of 70-90 mmHg reflects a more conservative approach in ensuring sufficient blood flow to the brain, particularly in more vulnerable patient populations.