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정광윤,최종욱 대한기관식도과학회 1995 大韓氣管食道科學會誌 Vol.1 No.1
Vocal folds injury from vocal abuse is important topics of phonosurgery. Recent advances in diagnostic equipment, phonosurgery and speech analysis equipment have provided a lot of Information about fine movement of the vocal folds. However, predicting the reaction of the vocal folds to phonatory trauma remains difficult. The vocal folds need to withstand great vibratory and shearing stress and anchoring fibers of basement membrane Bone play a role in maintaining structural integrity of histologically different epidermis and superficial layer of lamina propria(cover of vocal folds). The purpose of this study is to demonstrate the changes of anchoring fibers in vocal polyp using transmission electron microscope. Various defects were observed : a irregular thickening of basement membrane, a near absence of normal anchoring fiber, a lot of electron dense material in superficial layer of lamina propria, a destruction of hemidesmosome and many vesicles carrying electron dense material In basal keratinocyte. These observations were suggestive of a hyperactivity of basal keratinocyte of vocal folds epithelium in response to vibratory stress.
정광윤,최종욱,한동수 대한후두음성언어의학회 1995 대한후두음성언어의학회지 Vol.6 No.1
Bowing of the vocal cords may be due to aging. atrophy. bilateral superior laryngeal nerve paralysis. injudicious vocal cord surgery, of an idiopathic cause. The bowing usually produces a dysphonia characterized by breathiness due to air escape : however, it can produce aphonia. This report reviews vocal function after surgical correction of bowing of the vocal cords for diagnosis and management. The vocal function of 13 patients with sulcus vocalis and 12 patients with vocal cord atrophy was evaluated with the use of a test battery of multidimensional evaluation items. The voice was improved postoperatively in most patients. The voice improvement was reflected objectively in maximum phonation time, mean air flow rate during phonation, stroboscopic findings. sound pressure level range and fundamental frequency range of phonation, and results of acoustic analyses of tape-recorded voice. The vocal function after surgical correction of the sulcus vocalis and vocal cord atrophy was improved postoperatively in most patient, but the results were not satisfactory.
유홍균,정광윤 大韓法醫學會 1990 대한법의학회지 Vol.14 No.2
The clinical analysis was performed about 79 cases-of foreign bodies in the food and air passage and 11 cases of corrosive esophagitis visited in the our department during 2 years. The results are as follows: 1. Among the 78 cases, the foreign bodies of the food passage outnumbered those of the air passage, approximately 4.6:1. 2. The most common foreign body was coin(27 cases, 42.2%) in the food passage and plant(10 cases, 71.4%) in the air passage. 3. The male and female ratio was 1.3:1 in the food passage and 6:1 in the air passage. 4. The 25 cases (39.1%) of all esophageal foreign bodies and the 10 cases(74.1%) of all airway foreign bodies occurred under the age of 5 years. 5. The 51 cases (79.7%) in the food passage was in the first narrowing of esophagus and the 8 cases (57.1%) in the air passage was in the right bronchus ; the bronchial foreign bodies was found more common in right bronchus than left in the ratio of 1.6:1. 6. The 38 cases(59.4%) of in the food passage were removed out within a day and the 9 cases(64.3%) in the air passage over 3 days after. 7. Among 11 cases of corrosive esophagitis, the most common causative agent was lye(5 cases, 45.5%) and the most common motive of ingestion was suicide(8 cases, 72.7%).