Jeremiah Johnson, MD, FAANS, and Anthony Wang, MD explain moyamoya disease, which involves the narrowing of blood vessels in the brain. Moyomoya is rare and affects people of all ages, but it accounts for 10-20% of all strokes that occur in children. When a person has moyamoya, backup blood vessels form in the brain to make up for the lack of blood and oxygen caused by narrowing. Compared to healthy blood vessels, those backup vessels are smaller and weaker. Over time, moyamoya can cause bleeding in the brain or a stroke. The most common symptoms of moyamoya disease include brain bleeding (hemorrhage), headaches, personality changes, cognitive dysfunction, problems with senses (sight, touch, hearing, taste, smell) and seizures. There is no cure for moyamoya at this time, but treatments can help manage symptoms and prevent serious complications like seizure and stroke. Bypass surgery using donor arteries can help divert blood flow. In this webinar, Dr. Wang shows a bypass surgery and explains how the procedure is performed.
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