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    Movement - unpredictable or jerky

    Chorea; Muscle - jerky movements (uncontrolled); Hyperkinetic movements

    Jerky body movement is a condition in whicha personmakes fast movements that they cannot control and that have no purpose. These movements interrupt the person'snormal movement or posture.

    The medical name of this condition is chorea.

    Considerations

    This condition can affect one or both sides of the body. Typical movements of chorea include:

    • Bending and straightening the fingers and toes
    • Grimacing in the face
    • Raising and lowering the shoulders

    These movements do not usually repeat. They can look like they are being done on purpose. But the movements are not under the person's control. A person with chorea may look jittery or restless.

    Causes

    There are many possible causes of unpredictable, jerky movements, including:

    • Anti-cardiolipin antibody syndrome
    • Benign hereditary chorea (a rare inherited condition)
    • Disorders of calcium, glucose, or sodium metabolism
    • Huntington's disease
    • Medicines (such as levodopa, antidepressants, anticonvulsants)
    • Polycythemia rubra vera
    • Sydenham chorea
    • Wilson disease
    • Pregnancy (chorea gravidarum)
    • Stroke
    • Systemic lupus erythematosus
    • Tardive dyskinesia (a condition that can be caused by medications such as antipsychotic drugs)
    • Thyroid disease
    • Other rare disorders

    What to Expect at Your Office Visit

    The doctor will perform a physical exam. This may include a detailed examination of the nervous and muscle systems.

    The doctor will ask about your medical history and symptoms, including:

    • What kind of movement occurs?
    • What part of the body is affected?
    • What other symptoms are there?
    • Is there irritability?
    • Is there weakness or paralysis?
    • Is there restlessness?
    • Arethere emotional problems?
    • Are there facial tics?

    Tests that may beordered include:

    • Bloodtests such asmetabolic panel,complete blood count (CBC), blood differential
    • CT scan of the head or affected area
    • EEG (in rare cases)
    • EMG and nerve conduction velocity (in rare cases)
    • Genetic studies
    • Lumbar puncture
    • MRI of the head or affected area
    • Urinalysis

    Treatment

    Treatment is based on the type of chorea the person has. If medicines are used, the health care provider will decide which medicine to prescribe based on the person’s symptoms and signs.

    Home Care

    Treatment is aimed at the cause of the movements.

    • If the movements are due to a medicine, themedicine should be stopped, if possible.
    • If the movements are due to a disease, the disorder should be treated.
    • For people with Huntington disease, if the movements are severe and affect the person's life, medicines such as tetrabenazine may help control them.

    Excitement and fatigue can make chorea worse. Rest improves chorea. Try to reduce emotional stress.

    Safety measures should also be taken to prevent injury from the involuntary movements.

    When to Contact a Medical Professional

    Call your health care provider if you have unexplained body motions that are unpredictable and do not go away.

    References

    Griggs RC, Jozefowicz RF, Aminoff MJ. Approach to the patient with neurologic disease. In: Goldman L, Schafer AI, eds. Goldman’s Cecil Medicine. 24th ed. Philadelphia, PA: Elsevier Saunders; 2011:chap 403.

    Lang AE. Other movement disorders. In: Goldman L, Schafer AI, eds. Goldman’s Cecil Medicine. 24th ed. Philadelphia, PA: Elsevier Saunders; 2011:chap 417.

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                Review Date: 1/5/2013

                Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang

                The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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