cerebral perfusion pressure (CPP)

Introduction

Mean systemic arterial pressure [MAP] - intracranial pressure [ICP]

Cerebral perfusion pressures of > 70 mm Hg are generally considered adequate for perfusing the brain.

Pathology

• increases (esp > 120 mm Hg)
  • hypertensive encephalopathy
  • cerebral edema
  • tolerance to increased cerebral perfusion pressure may occur
• decreases
  • cerebral ischemia

Additional terms

• intracranial pressure (ICP)
• mean systemic arterial pressure (MAP)