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정광윤,최종욱,정학현,유홍균 대한후두음성언어의학회 1991 대한후두음성언어의학회지 Vol.4 No.1
A retrospective review of clinical records of 34 cases with polypoid vocal folds who underwent endolaryngeal microsurgery was carried out. The results were followings; 1) The incidence was high in elder age group(mean age : 53.7 years old). 2) Bilateral lesions were much more frequent than unilateral ones(67.6% vs. 32.4%). 3) Nine out of 34 patients had associated local pathologies and nine out of 34 patients had associated systemic pathologies. 4) Smoking appeared to be the most dominant predisposing factor(76.5%). 5) Maximal phonation time was decreased in 10 cases out of 14 cases(71.4%) and phonation quotient was increased in 9 cases out of 14 cases(64.3%). 6) All the cases were treated with sucking technique and the voice quality was improved in 32 cases(94.1%) The average duration for voice improvement was 2.8 months.
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.
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%).