Cerebrovascular Disease

Posted by e-Medical PPT Sunday, August 1, 2010
Cerebrovascular disease (CVD) is a group of brain dysfunctions related to disease of the blood vessels supplying the brain.It primarily affects people who are elderly or have a history of diabetes, smoking, or ischemic heart disease. A stroke is the rapidly developing loss of brain function due to disturbance in the blood supply to the brain. This can be due to ischemia caused by blockage (thrombosis, arterial embolism), or a hemorrhage (leakage of blood).A stroke is a medical emergency and can cause permanent neurological damage, complications, and even death.
Based on the extent of the symptoms, the stroke episode is classified as total anterior circulation infarct (TACI), partial anterior circulation infarct (PACI), lacunar infarct (LACI) or posterior circulation infarct (POCI).
In an ischemic stroke, blood supply to part of the brain is decreased, leading to dysfunction of the brain tissue in that area. There are four reasons why this might happen:Thrombosis,Embolism,Systemic hypoperfusion and Venous thrombosis.
Hemorrhagic stroke can be either intra-axial hemorrhage (blood inside the brain) and extra-axial hemorrhage(blood inside the skull but outside the brain).Intra-axial hemorrhage is due to intraparenchymal hemorrhage or intraventricular hemorrhage.The main types of extra-axial hemorrhage are epidural hematoma , subdural hematoma and subarachnoid hemorrhage.
A transient ischemic attack (TIA) leaves little to no permanent damage within the brain. The symptoms of this include facial weakness, visual impairment, loss of coordination, or balance and a sudden headache. Severe blockage of the arteries to the brain is known as carotid stenosis.

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1 Response to Cerebrovascular Disease

  1. Anonymous Says:
  2. I saw a case of cerebral thromboses in a young patient having homocystenemia.I wanted to know its prevalence..can anyone help?

     

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