Conditions + Treatments

Moyamoya Disease | Patient Stories

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David's story

David Youngerman leads a happy, healthy life. According to his mom, Michelle Marengo, he likes everything from soccer to snow skiing, drawing to traveling. He's a busy young man, but he still finds time to participate in Boston Children's Hospital's annual pledge walk.

David's commitment to the hospital is highly personal. Boston Children's diagnosed him with Moyamoya—a rare cerebrovascular disease caused by blocked arteries at the base of the brain. It revealed itself one sunny September day, when he was just 5 years old. David's left arm suddenly went numb in the car after soccer practice.

David Youngerman Moyamoya patient playing soccer

Michelle remembers: "I could see him slumping to one side. Then his speech began to slur, and I checked the rearview mirror again and his mouth was drooping on the left side." David was having a small stroke.

A series of tests found nothing wrong, but David's pediatrician referred him to Boston Children's, where neurosurgeons performed the eight-hour brain surgery that saved David's life.

David and his mom both know that innovative, life-saving care comes at a cost and that philanthropy can make miracles happen. "David sure understands what happens at hospitals and why kids need them so badly," says Michelle about her son's energy for fundraising.

To hear about the stories of other Moyamoya patients at Boston Children's, please click here

Boston Children’s is so much more than a hospital—it’s a community of researchers, clinicians, administrators, support staff, innovators, teachers, patients and families, all working together to make the impossible possible. ”
- Sandra L. Fenwick, President and CEO

Boston Children's Hospital
300 Longwood Avenue, Boston, MA 02115
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