Term
| irreversible damage after how many minutes? |
|
Definition
|
|
Term
|
Definition
| hippocampus, neocortex, cerebellum, watershed areas |
|
|
Term
|
Definition
| - red neurons: irreversible damage |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| - reactive gliosis + vascular proliferation |
|
|
Term
|
Definition
|
|
Term
|
Definition
| thrombi lead to ischemic stroke w/ subsequent necrosis (red neurons); cystic cavity formed with reactive gliosis |
|
|
Term
|
Definition
| intracerebral bleeding, often due to anuerysm rupture; possible secondary to ischemic stroke after reperfusion b/c of vessel fragility |
|
|
Term
|
Definition
| emboli block large vessels; etiologies include atrial fibrillation, carotid dissection, patent foramen ovale, endocarditis; lacunar strokes block small vessels, are secondary to HTN; Tx = tPA w/in 3 hours |
|
|
Term
| transient ischemic attack |
|
Definition
| brief, reversible episode of neurologic dysfunction due to focal ischemia; Sx usually last < 24 hours |
|
|
Term
|
Definition
- (3-30 minutes): bright on diffusion-weighted MRI
- remains bright for 10 days
- dark on CT in about 24 days
- CT w/out contrast = |
|
|
