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People rarely think of children as being at risk for stroke. But the truth is, strokes can happen to people of all ages, even to babies in the womb. For children especially, strokes are oftentimes related to bleeding and clotting disorders.
Approximately six in 100,000 children are affected by stroke. Here in the U.S., it is a leading cause of death among children. Nearly 60 percent of childhood strokes occur in boys. Because the causes and symptoms are so different, treating stroke in children requires specialized training.
The cells in the body need oxygen and nutrients to be healthy including the cells in the brain. Blood flows through your veins delivering oxygen and nutrients to the cells. There are three types of stroke:
When this happens, the cells in the area of the brain that have been interrupted become damaged. If the flow is interrupted for too long, the cells may die because they don't get the oxygen they need. When this happens, the child is at risk for long-term damage and may even risk losing his or her life.
The causes and types of stroke in children are very different from those in adults. For children, common causes are often related to:
Cerebral venous sinus thrombosis (CVST) is a stroke that occurs when a blood clot forms in the brain's venous sinuses, but rather that preventing blood from flowing into the brain, it blocks the blood from flowing out. This may result in blood leaking into the brain and causing a hemorrhagic stroke. CVST is a rare form of stroke that occurs almost exclusively in children, teens and young adults. Some causes or risk factors include:
Over the last 15 years, studies by the National STROKE Association have shown that there has also been an increase in strokes among teens and young adults related to certain disorders normally associated with adult strokes, such as:
Sickle-cell disease (SCD) is an inherited disorder in which red blood cells take on an abnormal shape. Stroke is a major complication of SCD. Children with SCD are much more likely to have a stroke than are children in general. Also, the risk of recurrent stroke in infants and children with untreated SCD is much higher — as high as 90 percent, according to some studies. A doctor can run tests to get a better understanding of the risk of stroke in a child with SCD. Regular red blood cell transfusion has been shown to reduce stroke risk in people with SCD.
While it can be extremely difficult to recognize symptoms of stroke in an adult, it is even more so in children. It is not uncommon for some types of strokes or after effects to go unnoticed. The brain is divided into two parts, the left and the right.
The left side of the brain controls the right side of the body as well as speech and language. If your child has experienced a stroke in the left side of his or her brain you may notice difficulty with speaking or reading or a weakness on the right side of the body.
The right side of the brain controls the left side of the body. If your child has suffered a stroke in the right side of the brain, the left side of the body will be affected along with perception and motor skills, In this case your child may have difficulty with simple tasks such as buttoning a shirt or may suddenly become clumsy due to loss of perception and an inability to judge things like distance.
If your child exhibits any of the same symptoms or warning signs seen in adults, call 911 immediately:
In addition, children may experience the following symptoms and warning signs:
Children, especially little ones, often cannot clearly describe the way they feel. Newborns and infants have no way of expressing their symptoms. If your child has been diagnosed with a disorder, illness or genetic disease or is undergoing certain treatments where stroke could be a possibility, it is very important to discuss a plan of action with your pediatrician and/or specialist. It is also critical to know these signs and take swift action if you believe your child is having a stroke. It could save his or her life.
Seizures are closely related to pediatric stroke and can become a continuing issue after a stroke. About 15 percent of seizures in newborns are secondary to stroke. In general, risk of recurrent pediatric stroke is low. However, children who have seizures often have a greater difficulty recovering.
Strokes are very serious and cause long-term and life-threatening damage. Because the brain is like a "command center" signaling all the functions of our bodies, a stroke affects other parts of the body.
The American Stroke Association reports that between 20 percent and 40 percent of children die after experiencing a stroke, and of those who survive, 50 percent to 80 percent may have permanent neurological deficits. Some of those deficits include:
Stroke is diagnosed through several testing techniques. Your doctor will perform a complete physical exam and check for problems with vision, movement, feeling, reflexes, speaking and ability to understand what is being said. The doctor will also listen for an abnormal sound in the carotid arteries in the neck. This sound, called a bruit, is caused by irregular blood flow. Additional tests may include:
Just as the causes for stroke are very different in children than adults, so is treatment. Your child's plan of care will depend on the specific cause of the stroke, as well as other important factors such as age, size and medical issues. Some of the more common treatments stroke in children, teens and young adults include:
For a child with sickle cell disease, blood transfusions may prevent strokes from occurring or recurring. Your doctor will discuss any risks and help to determine if this course of treatment is the right one for your child.
The stroke and thrombosis team at Cook Children's has an outstanding track record in helping patients to recover and to regain as much of their mental and motor skills as possible. An amazing team with extensive knowledge of disorders and issues that can cause stroke and treating those disorders in the tiniest of patients to young adults provides early prevention. And the chance to enjoy childhood and adulthood.
Cook Children's Stroke Program is a proud member of the International Pediatric Stroke Society (IPSS) which is an international network of several large pediatric institutions that are current world leaders in therapy and research in the field of pediatric stroke and thrombosis. Membership in IPSS has allowed Cook Children's to gain access to and participate in an international research trial that offers the most recent advances to treat acute ischemic stroke in children, including the novel use of a "clot busting" medication to reopen the obstructed cerebral artery and offer the best chance for children to have minimal to no neurological deficits.
Our thrombosis program is also a member of the Hemostasis and Thrombosis Research Society (HTRS) which enables us to provide the most up to date thrombosis diagnostics and management to inpatients, as well as outpatients through clinical trials, collaboration and networking with colleagues in this specialized field of hematology. We have also recently become involved in national initiatives for prevention of thrombosis in a variety of clinical situations and disease processes.
If your child has been diagnosed, you probably have lots of questions. We can help. If you would like to speak to one of our staff, please call our offices at 682-885-4007.