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KMID : 0384020100210010027
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Journal of the Korean Society of Logopedics and Phoniatrics
2010 Volume.21 No. 1 p.27 ~ p.31
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Vocal Fold Paresis : Controversies and Consensus
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Kim Tae-Wook
Son Young-Ik
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Abstract
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Mild vocal fold hypomobility is a common finding of which clinical significance is incompletely understood. Recently, electrophysiologic investigations have shown that vocal fold hypomobility is a continuum of neurogenic dysfunction ; partial denervation (paresis), complete denervation (paralysis), and variable degrees and patterns of reinnervation. Despite a sound pathophysiological basis for its existence, interest in and acceptance of the diagnosis of vocal fold paresis is relatively recent. Vocal fold paresis may be a relatively common and often overlooked condition that can be difficult to diagnose since laryngoscopy does not reliably distinguish innocent laryngeal asymmetry from hypomobility caused by paresis. Although not entirely free from error, laryngeal electromyography seems to hold more promise as a means of reliable diagnosis than laryngoscopy, and should be employed systematically in the evaluation of suspected paresis. The means to help most patients with paresis already exists in the repertoire of interventions developed to treat paralysis. However, since the vocal fold retains substantial movement, more conservative treatment strategy is recommended as a first line of treatment. The authors reviewed the representative reports of vocal fold paresis and summarized the controversies and consensus regarding the vocal fold paresis.
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KEYWORD
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Vocal cords, Paresis, Vocal cord paralysis, Electromyography, Mobility limitation
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