Abstract
A 50-year-old male, complaining of mild inspiratory dyspnea, visited our clinic in April,1993. No organic changes in the ear, nose or throat were observed. Fiberscopic laryngoscopy showed adduction of the vocal cords followed by severe inspiratory dyspnea. The dyspnea attack continued for a few minutes. Drinking chilled water ameliorated the dyspnea. During the attack, he noted tight feeling in the anterior neck. Local fremitus and wheeze were heard over the anterior neck. Chest and neck X-rays showed no pathological change. Peripheral blood test revealed eosinophilia (36.8% of WBC), suggesting an allergic mechanism of laryngeal dyskinesia. During three days of hospitalization, he sustained seven attacks of severe inspiratory dyspnea at night. However, emergency tracheotomy was not needed. After discharge, he has been free from symptoms. From the results of skin allergen test and RAST, cedar polliosis may have led to allergic laryngitis and further development of laryngeal dyskinesia.
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