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Are Children at Risk For Stroke?
The young have several risk factors unique to them. Young people seem to suffer from
hemorrhagic strokes more than ischemic strokes, a significant difference from older age
groups where ischemic strokes make up the majority of stroke cases. Hemorrhagic strokes
represent 20 percent of all strokes in the United States and young people account for many
of these.
Clinicians often separate the "young" into two categories: those younger than
15 years of age, and those 15 to 44 years of age. People 15 to 44 years of age are
generally considered young adults and have many of the risk factors mentioned above, such
as drug use, alcohol abuse, pregnancy, head and neck injuries, heart disease or heart
malformations, and infections. Some other causes of stroke in the young are linked to
genetic diseases.
Medical complications that can lead to stroke in children include intracranial
infection, brain injury, vascular malformations such as moyamoya syndrome, occlusive
vascular disease, and genetic disorders such as sickle cell anemia, tuberous sclerosis,
and Marfans syndrome.
The symptoms of stroke in children are different from those in adults and young adults.
A child experiencing a stroke may have seizures, a sudden loss of speech, a loss of
expressive language (including body language and gestures), hemiparesis (weakness on one
side of the body), hemiplegia (paralysis on one side of the body), dysarthria (impairment
of speech), convulsions, headache, or fever. It is a medical emergency when a child shows
any of these symptoms.
In children with stroke the underlying conditions that led to the stroke should be
determined and managed to prevent future strokes. For example, a recent clinical study
sponsored by the National Heart, Lung, and Blood Institute found that giving blood
transfusions to young children with sickle cell anemia greatly reduces the risk of stroke.
The Institute even suggests attempting to prevent stroke in high-risk children by giving
them blood transfusions before they experience a stroke.
Most children who experience a stroke will do better than most adults after treatment
and rehabilitation. This is due in part to the immature brains great plasticity, the
ability to adapt to deficits and injury. Children who experience seizures along with
stroke do not recover as well as children who do not have seizures. Some children may
experience residual hemiplegia, though most will eventually learn how to walk.
Source: National Institute of Neurological Disorders and Stroke,
NIH Publication No. 99-2222