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Related Experiment Videos

Ice pack test for myasthenia gravis.

K D Sethi, M H Rivner, T R Swift

    Neurology
    |August 1, 1987
    PubMed
    Summary
    This summary is machine-generated.

    The ice pack test can help diagnose myasthenia gravis, especially when other tests are negative. Applying cold to the eye improved eyelid ptosis in most myasthenia gravis patients tested.

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    Area of Science:

    • Neurology
    • Ophthalmology

    Background:

    • Eyelid ptosis is a common symptom of myasthenia gravis.
    • The edrophonium test is frequently negative in ocular myasthenia gravis cases.
    • Myasthenic weakness often shows improvement with cold application.

    Purpose of the Study:

    • To evaluate the utility of the ice pack test for diagnosing myasthenia gravis.
    • To determine if cold application can alleviate ptosis in myasthenia gravis patients.

    Main Methods:

    • 10 patients diagnosed with myasthenia gravis and 7 disease controls were enrolled.
    • Ice packs were applied to the eye area for a specified duration.
    • Improvement in eyelid ptosis was assessed post-application.

    Main Results:

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    • Eight out of 10 myasthenia gravis patients experienced improvement in eyelid ptosis.
    • None of the 7 disease controls showed any improvement.
    • The results indicate a significant difference between patients and controls.

    Conclusions:

    • The ice pack test is a valuable and accessible diagnostic tool for myasthenia gravis.
    • This test is particularly useful in cases where the edrophonium test yields negative results.
    • Cold application demonstrates a therapeutic effect on myasthenic ptosis.