It is therefore possible to differentiate between ischemic and hemorrhagic origin of cerebrovascular disease.

Cerebrovascular disease is caused by one of several pathophysiologic processes involving the blood vessels of the brain, including: the intrinsic process related to the vessel, such as atherosclerosis, lipohyalinosis, inflammation, amyloid deposition, arterial dissection, developmental malformation, aneurysmal dilation, or venous thrombosis an embolic process originating remotely (heart or extracranial circulation) and lodging in the intracranial vessel inadequate cerebral blood flow due to decreased perfusion pressure or increased blood viscosity and finally, rupture of a vessel in the subarachnoid space or intracerebral tissue. Stroke prognosis is influenced by a wide variety of factors, including age, stroke severity, stroke mechanism, infarct location, comorbid conditions, clinical findings, and related complications, and the medical community is obliged to identify risk factors and introduce preventive regimens. The impact of stroke on quality of life, productivity, and the cost of health care is immense. Each year, approximately 16 million people worldwide are affected by stroke, and the estimated prevalence of stroke survivors is over 60 million. Stroke is a devastating and debilitating disease, currently the leading cause of disability and fourth leading cause of death.

Stroke level blood pressure chart