Pharyngo-laryngeal Symptoms in Patients with Birch Pollen Nasal Allergy

概要

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It is well known that the patients with cedar pollen nasal allergy frequently suffer from various pharyngo-laryngeal symptoms, such as itching, the sensation of a foreign body in the larynx, persistent coughing or soreness of the throat. In this study, we focused on the pharyngo-laryngeal symptoms of patients with the birch pollen nasal allergy and the non-allergic patients with abnormal pharyngo-laryngeal sensations. A clinical study was carried out on 119 patients with birch pollen nasal allergy and 29 non-allergic patients with abnormal pharngo-laryngeal sensations. Diagnoses of cases as allergic were confirmed by the clinical symptoms of seasonal rhinitis along with the presence of the specific anti-birch IgE antibody by CAP-RAST. Laryngeal allergy was diagnosed according to the criteria proposed by the society of study for laryngeal allergy in Japan (1995). It was found that more than 60% of the birch pollen nasal allergy patients, especially with laryngeal allergy, had abnormal sensations in the throat with seasonally and daily alteration. Patients with birch pollen nasal allergy complained more frequently of itching in the larynx, whereas the patients with abnormal pharyngo-laryngeal sensations tended to complain about foreign-body sensations in the larynx. The results of the present study could be considered important and useful to re-evaluate the criteria for laryngeal allergy.
The Japan Laryngological Associationの論文