1.A clinical study on the results of middle ear surgery.
In Young KWAK ; Sung Kun KIM ; Kyung Rae KIM ; Chul Won PARK ; Kyung Sung AHN
Korean Journal of Otolaryngology - Head and Neck Surgery 1993;36(6):1140-1147
No abstract available.
Ear, Middle*
2.Effects of middle ear and temporal bone pathology on bone conduction hearing level in chronic otitis media.
Song Ho KANG ; In Young KWAK ; Chul Won PARK ; Hyung Seok LEE ; Kyung Sung AHN ; Kyung TAE
Korean Journal of Otolaryngology - Head and Neck Surgery 1992;35(5):694-701
No abstract available.
Bone Conduction*
;
Ear, Middle*
;
Otitis Media*
;
Otitis*
;
Pathology*
;
Temporal Bone*
3.Changes of Psychopathology and Extrapyramidal Symptoms When Co-administering Fluoxetine and Haloperidol.
Min Soo LEE ; Chang Su HAN ; Jae Won KIM ; Kyung Sik WON ; Dong ll KWAK
Journal of the Korean Society of Biological Psychiatry 1997;4(1):121-126
OBJECTIVES: The authors have intended to know the drug interaction of fluoxetine and haloperidol when coadministering two drugs to the chronic schizophrenics by assessing the changes of positive, negative symptoms and extrapyramidal symptoms. METHOD: We selected 38 patients, the chronic schizophrenics with no physical problems. they are randomly assigned to placebo group and drug group. And then, placebo or fluoxetine 20mg were administered to the subjects of each group during 8 week period. We have assessed their psychopathology and extrapyramidal symptoms using positive and Negative Syndrome Scale(PANSS), Clinical Global Impression(CGI), Simpson-Angus Scale at o, 2, 4, 6, 8 week during the period. RESULTS: 38 patients have completed the study during 8 week. 1) PANSS, CGI : no significant difference between groups and no significant change according to the times. 2) Simpson-Angus Scale : no significant changes. CONCLUSION: When co-administering fluoxetine and haloperidol, there were no significant changes of psychopathology and extrapyramidal symptoms. There results suggest that it is safe to coadminister fluoxetine to schizophrenic with haloperidol treatment.
Drug Interactions
;
Fluoxetine*
;
Haloperidol*
;
Humans
;
Psychopathology*
4.Placental Site Nodules & Plaques: A clinicopathologic analysis of 14 cases.
Kyu Rae KIM ; Sun Won HONG ; Kyung Sub CHA ; In Pyong KWAK ; Tae Ki YOON
Korean Journal of Pathology 1992;26(1):53-61
Placental site nodules and plaques have been recently described to designated single or multiple, well-circumscribed, rounded lesions at the placental site, composed of viable or degenerating intermediate trophoblastic cells and extensive hyalinization between the cells. We described clinicopathologic findings of 14 cases of placental site nodules and plaques. The age of 14 patients ranged from 25 to 39(average 33) years and all of them had been pregnant in the past. Ten of them presented with vaginal spotting, which was preceded by recent pregnancy in only 3 cases. Three patients presented with secondary infertility and one with secondary infertility and vaginal spotting. Urine pregnancy tests were negative in all 14 cases at the time of presentation. Ultrasonographic examination disclosed abnormalities in only 3 cases and the remaining cases were normal. Hysterosalpingography was performed in 3 patients who presented with 2 degrees infertility and revealed moderate to severe intrauterine adhesions. Microscopically, chronic endometritis of varying degrees evidenced by plasma cells and eosinophiles were present in all cases and these were more prominent in the vicinity of the lesions. It is presumed that the placental site nodules and plaques are not sloughed at the time of menstruation and it may cause chronic endometritis or intrauterine adhesions at any time after previous delivery.
Pregnancy
;
Female
;
Humans
5.The Changes of the Retinal Ganglional Cells in the Pressure-induced Ischemic Rabbit Retina.
Tae Kwann PARK ; Won Sub SON ; Hyung Woo KWAK
Journal of the Korean Ophthalmological Society 2001;42(5):772-782
PURPOSE: There were many studies on the distributions of the retinal ganglion cells(RGC) in the experimental model of the retinal ischemia. RGC was known to be more sensitive to the ischemic injury than the other types of the retinal cells. So, we would identify the changes of the retinal ganglion cell morphologies and distribution after the iatrogenic retinal ischemia induced by intraocular pressure(IOP) elevation. METHODS: Eight pigmented and six white rabbits were used and retinal ischemia was induced by increasing IOP higher than 120 mmHg for 60 minutes. Electroretinogram were recorded at 6 days or 13 days, and histologic findings were observed at 7 or 14 days. RESULTS: After 7 days, RGC densities decreased, cytoplasmic staining disappeared, and the intranuclear hyperpigmentation was noted. RGC densities decreased significantly at 14 days. In the vertical retinal section, some flattening of retinal ganglion cell layer and inner plexiform layer was observed. Changes in the cellular morphologies were prominent. CONCLUSIONS: It may be more appropriate to examine both the retinal whole-mount and the vertical tissue section for the estimatation of the changes of retinal ganglion cell layer in the pressure-induced retinal ischemia.
Cytoplasm
;
Ganglion Cysts*
;
Hyperpigmentation
;
Ischemia
;
Models, Theoretical
;
Rabbits
;
Retina*
;
Retinal Ganglion Cells
;
Retinaldehyde*
6.The Neuroprotective Effect of Intravitreal Melatonin Injection in Pressure-induced Retinal Ischemia.
Seung Joon LEE ; Won Sub SON ; Hyung Woo KWAK
Journal of the Korean Ophthalmological Society 2001;42(4):638-646
PURPOSE: The authors sought to determine the neuroprotective effect of melatonin in a model of ischemic injury in rabbit retina. METHODS: Ischemia was induced by high intraocualr pressure. A dose of 100 microgram of melatonin or dimethyl sulfoxide(DMSO) alone was injected intravitreally just after the induction of ischemia. After 7 and 14 days, the neuroprotective effect of melatonin on ischemic retina was examined with light microscope and transmission electron microscope. RESULTS: The authors found reduction of cytoplasm of retinal ganglion cell(RGC), vacuole formation, chromatin condensation and rupture of nuclear membrane in ischemia-injured eyes treated with DMSO alone. But in melatonin treated eyes, we found that RGC layer's thickness and number of RGC reduced and destruction of cytoplasmic organells and nuclear damage were minimal. The partial recovery of wave is noted in melatonin-treated eyes after ischemia induction. CONCLUSIONS: The melatonin(100 microgram) protected the rabbit retina from high intraocular pressure-induced ischemic injury when administered intravitreally. Melatonin may be useful to decrease neuronal damage in the retina as a result of ischemic injury. But further investigations are neccesary to decide effective concentration, route and time of administration.
Chromatin
;
Cytoplasm
;
Dimethyl Sulfoxide
;
Ganglion Cysts
;
Ischemia*
;
Melatonin*
;
Neurons
;
Neuroprotective Agents*
;
Nuclear Envelope
;
Retina
;
Retinaldehyde*
;
Rupture
;
Vacuoles
7.Comparison of patient's desire, physician's recommendiation andhealth examination cneter's performance on periodic healthexamination.
Bang Bu YOUN ; Hye Ree LEE ; Mi Kyung OH ; Ki Won KWAK ; Jong Tae CHUNG ; Hee Chul KANG ; Won Kyung KIM
Journal of the Korean Academy of Family Medicine 1991;12(2):1-19
No abstract available.
8.Energy Value of Breakfast and Its Relation to Total Daily Nutrient Intake and serum Lipid in Korean Urban Adults.
Wha Jin HYUN ; Joung Won LEE ; Chung Sil KWAK ; Kyung Hee SONG
Korean Journal of Community Nutrition 1998;3(3):368-379
The purpose of this study was to assess the energy value of breakfast and its relation to total daily nutrient intake and serum lipid. Dietary intakes were evaluated through the 3-day dietary recalls(interview for 1day and self-report for 2 days) from 333 Korean urban adults aged 20-49 year. Serum lipids in fasting blood samples were measured form 98 of those 333 adults. Low energy breakfast(<15% of daily energy intake) was consumed by 22.6% of males and 18.5% of females. 59.4 of males and 43.3% of females consumed a breakfast of average energy intake(15-25% daily energy intake) ; and 18.1 of males and 38.2% of females consumed a significant contribution to a total daily nutrient intake. The daily nutrient intake except crude fiber and vitamin A, B, B, and C in males and except vitamin C in females significantly increased as the energy value of breakfast increased. The differences in energy and nutrient intakes at breakfast were not made up for by other meals. To make matters worse, the satisfactory-energy breakfast group took more energy at dinner compared with the low-energy and average-energy breakfast group took more energy at dinner compared with the low-energy and average-energy breakfast groups in females. Among serum lipid parameters, TG was negatively correlated with energy provided at breakfast, and total cholesterol and LDL-cholesterol had a negative correlation with energy and carbohydrates provided at breakfast in males. For females TG was positively correlated with the ratio of carbohydrates to energy at breakfast but negatively correlated with the ratio of fat to energy at breakfast. These results suggest that satisfactory energy intakes at breakfast have positive effects on the adequacy of daily nutrient intake and may positively affect the serum lipid status.
Adult*
;
Ascorbic Acid
;
Breakfast*
;
Carbohydrates
;
Cholesterol
;
Fasting
;
Female
;
Humans
;
Male
;
Meals
;
Vitamin A
9.The Neuroprotective Effect of alpha-phenyl-N-tert-butyl-nitrone (PBN) in the Argon Laser Induced Retinal Ischemia.
Hyung Kyu PARK ; Won Sub SON ; Hyung Woo KWAK
Journal of the Korean Ophthalmological Society 2002;43(3):599-607
PURPOSE: We examined the ability of alpha-phenyl-tert-butyl-nitrone (PBN), an electron spin trapper, to determine the neuroprotective effect in the argon laser induced ischemic rat retina model. METHODS: After ischemic condition of rat retina was induced by argon green laser, PBN was given intraperitoneally at 50 or 100 mg/kg and normal saline was injected to control group. After 24 hours, 48 hours, and 7 days, the neuroprotective effect of PBN was examined by electroretinogram (ERG) and after 7 days, the enucleation of eyes was performed and histologic findings were compared by light microscopy and transmission electron microscopy. RESULTS: We found relatively reduced amplitude of ERG wave in the PBN injected group but not so greatly reduced as in normal saline control group. The retinal ganglion cell (RGC) layer and the number of RGCs were affected by acute ischemic changes but in the group of PBN treatment, the cell membrane was well preserved and vecuoles formation, cytoplasmic destructions, nuclear chromatin condensation were reduced. CONCLUSIONS: Systemic administration of PBN can ameliorate an argon laser induced retinal ischemia. Further investigations are necessary to decide effective dose without toxicity and to find more convenient methods of administrations.
Animals
;
Argon*
;
Cell Membrane
;
Chromatin
;
Cytoplasm
;
Ischemia*
;
Microscopy
;
Microscopy, Electron, Transmission
;
Neuroprotective Agents*
;
Rats
;
Retina
;
Retinal Ganglion Cells
;
Retinaldehyde*
10.Solid and Papillary Epithelial Neoplasm of the Pancreas: Radiologic and Pathologic Correlationt.
Ik YANG ; Eun Kyung KIM ; Jae Hoon LIM ; Young Tae KO ; Joo Won LIM ; Dal Mo YANG ; Jeong Ho KWAK
Journal of the Korean Radiological Society 1994;30(1):155-158
PURPOSE: Computed tomographic(CT), ultrasonographic(US) findings of solid and papillary epithelial neoplasm of the pancreas were correlated with pathologic findings for the better understanding of this disease entity. METHODS AND MATERIALS: A retrospective review of CT and US of 14 cases of solid and papillary epithelial neoplasm of the pancreas was carried out in terms of the margin, internal architecture, caicification and septation, and this was correlated with gross pathologic findings. RESULTS: CT and US findings were well defined round masses consisting of both solid and cystic components. Five cases were cystic, four cases were solid and five cases were mixed. Cystic portion of the tumor represented variable degree of hemorrhagic necrosis. Six cases contained foci of calcification, which were linear, marginal and amorphous. Marginal calcification interfered US examination of the mass in three cases. Internal septurn was demonstrated in four cases on CT, one case on US and three cases on gross specimen. CONCLUSIONS: Our results indicate that calcification and internal septurn were considered as a part of radiologic findings in solid and papillary epithelial neoplasm of the pancreas.
Necrosis
;
Neoplasms, Glandular and Epithelial*
;
Pancreas*
;
Retrospective Studies