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The cerebellum is the area of the brain responsible for controlling muscle coordination. If it becomes inflamed or damaged, you may suddenly lose coordination. This is called acute cerebellar ataxia (ACA), or cerebellitis.
Viruses and other diseases that affect the nervous system can damage the cerebellum. Some viruses that can cause ACA include chickenpox, Epstein-Barr virus, and coxsackie disease. Ataxia can take weeks to appear following a viral infection in children.
Other causes of ACA include:
Children younger than 3 years old have the highest risk of ataxia. However, older children and adults can also develop ACA.
Symptoms of ACA include:
These symptoms are also associated with several other conditions that affect the nervous system. It is important to visit your doctor if you experience any of them.
Your doctor will administer several tests to determine whether you have ataxia and what is causing it. These tests can include a complete physical exam and various neurological exams. Your hearing, memory, balance, vision, concentration, reflexes, and coordination may all be evaluated. If you did not have a recent virus, a doctor will also look closely for underlying disorders and conditions that commonly lead to ACA.
There are a number of tests your doctor can use to evaluate your symptoms.
Your doctor might also look for damage in your brain using magnetic resonance imaging (MRI) or computerized tomography (CT). Other tests your doctor might perform include a urinalysis and an ultrasound.
Treatment is not always necessary. When ACA is caused by a virus, a full recovery is usually expected without treatment. Viral ataxia generally clears on its own within a few months.
If your ataxia is not caused by a virus, it may require treatment. However, specific treatment will depend on the cause. Surgery may be recommended if your ataxia is due to bleeding. Antibiotics might be necessary if you have an infection. Blood-thinners can help if your ataxia was caused by a stroke. There is also medication available that can treat inflammation of the cerebellum directly.
If you have ataxia, you may also need assistance dealing with your symptoms. Adaptive devices such as canes, special eating utensils, and speaking aids can all help with walking or performing daily tasks. So can physical therapy, speech therapy, and occupational therapy. Some people also find that lifestyle changes, such as altering their diet and taking nutritional supplements, can help their condition improve.
ACA that occurs due to a stroke, infection, or bleeding may cause chronic symptoms. Having ataxia can also put you at higher risk for anxiety and depression, especially if you need help with daily tasks or are unable to get around on your own.
You can’t prevent acute cerebellar ataxia, but you can reduce your children’s risk of getting it. Make sure your child gets vaccinated against viruses, such as chickenpox, that can put them at risk
Written by: Amanda Delgado and Elizabeth Boskey, PhD
Medically reviewed by George Krucik, MD
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