| Types of stroke by etiology |
- Atherothrombotic: sudden, gradual, stepwise or fluctuating
- Cardiac embolus: Sudden onset
- High risk: atrial fibrillation, prosthetic valve,
left ventricular thrombus, left atrial thrombus, dilated caridomyopathy, sick sinu
syndrome, myocardial infarction in past 4 weeks
- Moderate risk: congestive heart failure, atrial flutter, mitral valve
prolapse, atrial septal defect, bioprosthetic valve, ventricular hypokinesia, MI between
4-6 weeks
- Lacunar: abrupt or gradual onset.
- history of diabetes or hypertension
- CT, MRI < 1.5 cm
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