Sleep-related adductor Laryngeal dystonia causing sleep apnea: A sleep-related breathing disorder diagnosed with sleep endoscopy and treated with botulinum toxin.

May
15th

Sleep-related adductor Laryngeal dystonia causing sleep apnea: A sleep-related breathing disorder diagnosed with sleep endoscopy and treated with botulinum toxin.

Laryngoscope. 2013 May 10. doi: 10.1002/lary.23708.

OBJECTIVES/HYPOTHESIS: 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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http://www.ncbi.nlm.nih.gov/pubmed/23666585