Template:Ischemic Stroke Cause

Ischemic stroke causes (87% of all strokes)

• Thrombotic (80% of ischemic CVA)
  • Atherosclerosis
  • Vasculitis
  • Vertebral and carotid artery dissection (common cause of stroke in young patients)
    • Often preceded by yoga, spinal manipulation, coughing, vomiting
  • Polycythemia
  • Hypercoagulable state (oral contraceptives, antiphospholipid antibodies, protein S and C deficiencies, sickle cell anemia)
  • Infection
  • Toxic (cocaine, ampphetamines, etc.)
• Embolic (20% of ischemic CVA)
  • Valvular vegetations
  • Mural thrombi
  • Arterial-arterial emboli from proximal source (ex. amaurosis fugax -> emboli from a proximal carotid artery plaque embolizes to the ophtalmic artery, causing transient monocular blindness)
  • Fat emboli
  • Septic emboli
• Hypoperfusion
  • Cardiac failure resulting in systemic hypotension