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Journal of Voice
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Journal of Voice
Article . 2018 . Peer-reviewed
License: Elsevier TDM
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Pharyngeal Dystonia Mimicking Spasmodic Dysphonia

Authors: Hyder A. Jinnah; Michael M. Johns; Edie R. Hapner; C. Blake Simpson; Lucy L. Shi;

Pharyngeal Dystonia Mimicking Spasmodic Dysphonia

Abstract

The aim of this study was to describe the presentation of pharyngeal dystonia (PD), which can occur as a focal or segmental dystonia with a primarily pharyngeal involvement for the discussion of treatment methods for controlling consequent symptoms. PD is specific to speech-related tasks.A retrospective medical record review of four patients with PD was performed.All patients were initially misdiagnosed with adductor spasmodic dysphonia and failed standard treatment with botulinum toxin type A (BTX). On laryngoscopy, the patients were discovered to have segmental or focal dystonia primarily affecting the pharyngeal musculature contributing to their vocal manifestations. A novel treatment regimen was designed, which involved directing BTX injections into the muscles involved in spasmodic valving at the oropharyngeal level. After titrating to an optimal dose, all patients showed improvement in their voice and speech with only mild dysphagia. These patients have maintained favorable results with repeat injections at 6- to 12-week intervals.PD, or dystonia with predominant pharyngeal involvement, is a rare entity with vocal manifestations that are not well described. It can be easily mistaken for spasmodic dysphonia. PD is specific to speech-related tasks. A novel method of BTX injections into the involved muscles results in a significant improvement in voice without significant dysphagia.

Keywords

Male, Laryngoscopy, Acetylcholine Release Inhibitors, Pharyngeal Diseases, Recovery of Function, Middle Aged, Dysphonia, Injections, Intramuscular, Medical Records, Speech Acoustics, Diagnosis, Differential, Treatment Outcome, Predictive Value of Tests, Pharyngeal Muscles, Humans, Female, Botulinum Toxins, Type A, Diagnostic Errors, Aged, Retrospective Studies

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    influence
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Average
Top 10%
Average
bronze