CVA Flashcards
What are the big risk factors for CVA?
Hypertension
Hyperlipidemia
Tobacco use
Diabetes
Race (black and african americans are more at risk)
Oral birth control
Age
Gender
Sickle cell
History of TIA
A-fib
What is an ischemic stroke?
An occlusion of a cerebral artery
What types of patients are in a relatively hypercoagulable state and have an increased risk of thrombus formation causing a stroke?
Patients taking chemo or oral contraceptives
What is penumbra?
Ischemic area that is still viable (injured by alive)
What is the goal related to penumbra?
Salvage the penumbra within 3 hours because otherwise it will die
What is a hemorrhagic stroke?
Bleeding within the brain parenchyma
What is the prognosis for a hemorrhagic stroke?
If the patient is older - the prognosis is better because the brain naturally atrophies and can make more room.
Depends on the location and size
How quickly the bleed shows up on a screen
What type of hematoma is seen commonly with skull fractures?
Epidural hematoma
What type of blood is involved with an epidural hematoma?
Arterial (oxygenated) blood
What is the dura mater doing with an epidural hematoma?
Peeled off of the skull
What type of blood is involved with a subdural hematoma?
Venous blood (deoxygenated)
What is the onset of subdural hematomas?
Can be 2-10 days
Are epidural or subdural hematomas more severe?
Subdural hematomas
What is a subarachnoid hemorrhage?
Bleed between the outer arachnoid membrane and the pia mater
What type of stroke is suspected with the complaint of “the worst headache of my life”?
Hemorrhagic stroke