Abstract
In this study, upper air way model including the oral cavity was obtained from an adult cadaver. 2% methyrene blue solution was prepered for the aerosol solution. The aerosols for the larynx were produced by the way of ultrasonic and jet nebulizers through the nose and through the oral cavity under the artificial respiratory condition, just as rest respiration for 3 minutes. From the sagittal glass plane of this model, current and attachment of aerosol were recorded by VTR. And analysis was performed by reproduced pictures.
From these tests, the most reliable results were obtained from ultrasonic nebulizer through the oral cavity, and followed by ultrasonic through the nose. Jet type nebulizer showed the limited, little volume of aerosol particules in the larynx and into the trachea. Most deposit of the aerosols was found in the epiglottal fold, both aryte noid and root of the tongue, but not on the vocal folds. And lower part of the anterior commissure in the first tracheal ring.
Clinical findings of the allergic laryngitis were characterized by the edematous swelling in the mucosa of the arytenoid, epiglottis, and rare false vocal folds without vocal folds. They have complained of dry cough without sputum, abnormal sensation, itching and foreign body sensation, without hoarseness. And their complaints increased in the allergic season especially ceders. 70% of these patients have allergic disposition. This disease can be managed by local and general medication such as antiallergic drugs, antihistamines, steroid if necessary.
Antibiotics may be prescribed in complication with acute inflammation Antigens of allergic laryngitis were considered the inhalation antigens, alimental antigens and medicine (drugs).
