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A total of 333 patients with a diagnosis of functional dysphonia were studied by both laryngeal electromyography (EMG) and spectral analysis. EMG and acoustic analysis revealed that some patients with so-called functional dysphonia diagnosed by physical examination alone in fact suffered from a variable degree of laryngeal nerve paralysis. Laryngeal EMG plays an important role in determining whether patients with a diagnosis of functional dysphonia have organic disease of the laryngeal nerves.
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*This work was presented at the Beijing International Symposium on Otolaryngology, Beijing, October 25–30, 1988.
© 1989 Raven Press, Ltd., New York. Published by Elsevier Inc.