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  • Title: Clinical evaluation of vocal fold paralysis.
    Author: Richardson BE, Bastian RW.
    Journal: Otolaryngol Clin North Am; 2004 Feb; 37(1):45-58. PubMed ID: 15062686.
    Abstract:
    Vocal fold paralysis is regarded as a sign of other pathologic findings until investigation has proven that there is no lesion to explain the paralysis. We have outlined a cost-effective and time- and labor-efficient method for the clinical evaluation of vocal fold paralysis, including a focused history; vocal capability assessment to find deficits in the function of palate,pharynx, and larynx: and, finally, an intense examination under topical anesthesia to demonstrate these deficits. In essence, it is the endoscopic version of a radiographic study from the skull base through the aortic arch. This method is streamlined as compared with prior protocols for evaluation of vocal fold paralysis, because it directs the necessary further workup according to the likely site of the lesion as indicated by the extended physical examination and can be conducted entirely in the physician's office. Radiographic workup should include CT of the skull base through the upper mediastinum if solely a recurrent nerve paralysis is present; it should include MRI of the skull base if high vagal signs and symptoms are present. If MRI is negative, CT may also be needed for complete evaluation. Neurologic signs that are not all ipsilateral require MRI of the brain and consultation with a neurologist. Esophageal obstruction combined with vocal fold paralysis mandates evaluation via esophagoscopy or an esophagram.
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