Major causes: Hypertension for many years, atrial fibrillation, and arteriosclerotic blockage in the carotid (neck) arteries are the 3 commonest causes. Rarer causes are: ruptured berry aneurysms, CNS infections, vasculitis, endocarditis, hypercoagulable states and strokes of unknown cause (cryptogenic).
Answered 6/10/2014
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