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Sleep‐related Adductor Laryngeal Dystonia Causing Sleep Apnea

R. Marchese-Ragona, A. Vianello, D. Restivo, G. Pittoni, M. Lionello, A. Martini, D. Manfredini, B. Kotecha, A. Staffieri
Published 2013 · Medicine

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Obstructive sleep apnea syndrome (OSAS) is a chronic condition, characterized by recurrent episodes of upper airway collapse during sleep, which affects up to 5% of adults in the Western population. The muscle tone of the human body ordinarily relaxes during sleep, thus causing airway obstruction and leading to sleep apnea. We report a case of a 68‐years old male in which dystonic closure of the larynx during sleep caused OSAS. The sleep endoscopy was crucial in establishing the diagnosis of laryngeal dystonia. A botulinum toxin injection in the vocal cord improved the OSAS. These findings define a novel sleep‐related breathing disorder.
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