Stories about: Cerebrovascular Disorders and Stroke Program

Moyamoya and childhood stroke: Catching up with Tyler and Ryan

pediatric-strokeRyan (above left) and Tyler Earle of Winnipeg, Canada had a ticking time bomb inside their heads. Both boys have a rare brain disorder called moyamoya that had caused the arteries feeding their brains to become dangerously narrowed.

At first, they experienced only headaches. But then Ryan suddenly lost his ability to write, began having trouble with word-finding and became weak on one side of his body — signs he had suffered a stroke. He was diagnosed with moyamoya and had partial surgery, but a second stroke took away part of his vision and partially paralyzed him.

Ryan needed a second operation as soon as possible. By this time, Tyler was diagnosed with advancing moyamoya disease and would need neurosurgery too, on both sides of his brain.

Read Full Story