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[Decrease and asymmetry in taste perception in patients with nerve trunk damage]

V A Nikulina, G S Kokin, I S Morozov

    Zhurnal Nevrologii I Psikhiatrii Imeni S.S. Korsakova
    |January 1, 1995
    PubMed
    Summary

    Patients with nerve damage, particularly to the facial nerve, often experience decreased taste perception. This study found taste disturbances in over 70% of patients, highlighting a potential prognostic indicator for surgical outcomes.

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    Area of Science:

    • Neurology
    • Sensory Neuroscience

    Background:

    • Nerve damage can impact various sensory functions.
    • Gustatory perception, or taste, is mediated by cranial nerves, including the facial nerve.

    Purpose of the Study:

    • To investigate gustatory perception in patients with unilateral nerve damage.
    • To assess taste alterations in patients with branchial plexus, radial, facial, and ulnar nerve trunk injuries.

    Main Methods:

    • Assessed gustatory perception using sodium chloride (NaCl) solutions.
    • Evaluated taste perception in patients with unilateral nerve damage to specific nerve trunks.

    Main Results:

    • A decrease in gustatory perception was noted in 70.3% of patients.
    • Gustatory perception disturbances, specifically increased thresholds, occurred in 82.2% (right limb) and 69.6% (left limb) of damaged sides.

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  • A strengthening of existing gustatory perception asymmetry was observed, particularly in left-sided denervation.

    • Conclusions:

    • Unilateral nerve damage significantly affects gustatory perception.
    • The degree of taste restoration can serve as a prognostic indicator for surgical interventions in these patients.