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Bell's palsy and stapedial reflex.

G Ralli, G Magliulo, M Gagliardi

    Clinical Otolaryngology and Allied Sciences
    |August 1, 1986
    PubMed
    Summary

    The stapedial reflex

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    Area of Science:

    • Neurology
    • Otolaryngology

    Background:

    • Bell's palsy is a common neurological disorder affecting facial nerve function.
    • The stapedial reflex, an involuntary muscle contraction in the middle ear, can be impacted by Bell's palsy.

    Purpose of the Study:

    • To investigate the temporal changes in the stapedial reflex and its latency during the early weeks of Bell's palsy.
    • To correlate these stapedial reflex parameters with the overall recovery pattern of facial paralysis.

    Main Methods:

    • Evaluated 133 patients diagnosed with Bell's palsy.
    • Categorized patients into three groups based on the presence and reappearance timing of the stapedial reflex.
    • Monitored the evolution of facial function recovery in each group.

    Main Results:

    • Group 1: Stapedial reflex present in week 1, recovery in 30-60 days.
    • Group 2: Stapedial reflex reappeared days 8-35, recovery within 150 days.
    • Group 3: Stapedial reflex reappeared days 36-70, incomplete recovery after 1 year.

    Conclusions:

    • The stapedial reflex's evolution provides valuable prognostic information for Bell's palsy.
    • Early stapedial reflex presence indicates a better prognosis for facial function recovery.
    • Delayed or absent stapedial reflex suggests a poorer prognosis and potential for persistent paralysis.

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