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Cricothyroid Muscle Botulinum Toxin Chemodenervation to Treat Recalcitrant High-Pitched Functional Dysphonia in an Adult Male

      Summary

      Introduction

      Functional dysphonia occurs in the absence of structural or neurologic laryngeal abnormalities with various manifestations including aphonia and inappropriate vocal pitch. Voice therapy is the first-line treatment, and literature on treatment options for functional dysphonia unresponsive to voice therapy is limited.

      Methods

      Retrospective medical records review and report of a case.

      Results

      We report a unique case of an adult male with recalcitrant high-pitched functional dysphonia of adult-onset that was successfully treated with a single cricothyroid muscle botulinum toxin (Botox) chemodenervation injection.

      Conclusion

      Cricothyroid muscle botulinum toxin chemodenervation can be an effective treatment for recalcitrant functional dysphonia.

      Key Words

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