SEATTLE, May 4, 2009 -- Moyamoya disease is an extremely rare condition that leads to irreversible blockage of the carotid arteries to the brain as they enter into the skull. Those with the rare brain disorder are often young, female and at greater risk for stroke or brain hemorrhage. In children it tends to cause strokes or seizures. In adults it tends to cause strokes or bleeding. The clinical features are cerebral ischaemia (strokes), recurrent transient ischemic attacks (TIAs), sensorimotor paralysis (numbness in the extremities), convulsions and/or migraine-like headaches.
Swedish Neuroscience Institute Neurosurgeon David Newell, M.D., is one the country's leading experts on the treatment of the disorder and helped prove that cerebral bypass surgery is an effective treatment for the condition.
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