1.A Case of Eosinophilic Pustular Folliculitis.
Soo Il CHUN ; Won hyoung KANG ; Young Jin KOH
Korean Journal of Dermatology 1984;22(6):689-694
We report herein a case of eosinophilic pustular follicultis in a 20-year-old man. The patient showed typical clinical picture with specific laboratory and histopathological findings of eosinophilic pustular folliculitis. The patient responded well to systemic administration of corticosteroid and dapsone.
Dapsone
;
Eosinophils*
;
Folliculitis*
;
Humans
;
Young Adult
2.Systemic Lupus Erythematosus Showing Vesiculobullous Eruptions: Report of Two Cases.
Young Jin KOH ; Kwang Hoon LEE ; Won Hyoung KANG
Korean Journal of Dermatology 1986;24(6):853-858
l6-year-old male and 48-year-old female with systemic lupus erythematosus (SLE) and renal disease presented with vesiculobullous eruptions during severe attack of the disease. They showed hypocomplementernia, and high ANA titers. Histopathologic findings revealed subepidermal blister and leukocytoclastic vasculitis, Direct immunofluorescence demonstratedlinear deposits of IgG, IgA and lgM at the dermoepidermal junction. The vesiculobullous eruption of SLE may be an important marker reflecting disease activity and prognosis.
Blister
;
Female
;
Fluorescent Antibody Technique, Direct
;
Humans
;
Immunoglobulin A
;
Immunoglobulin G
;
Lupus Erythematosus, Systemic*
;
Male
;
Middle Aged
;
Prognosis
;
Vasculitis
3.The Amounts of Horizontal Ocular Movement in Korean People and Comparison According to Methods of Measurement.
Journal of the Korean Ophthalmological Society 2003;44(6):1370-1375
PURPOSE: To estimate and standardize horizontal ocular movement of normal Korean people and, to adapt correlations among three Methods for clinical approach. METHODS: This study investigated the amounts of horizontal ocular movement in normal Korean people whose age was ranged from 20 to 79 (50 persons in each age decades) by the lateral version light reflex Method, the limbus test of motility and the imaginary vertical line Method, and compared relationships among the amounts measured with above three Methods by Spearman correlation coefficient. The study subjects were three hundred people who visited Dept. of Ophthalmology at Gyeongsang National University Hospital, whose best corrected visual acuity was no less than 20/50 Snellen visual acuity chart, who had no history of ophthalmic operation and diseases, whose age was ranged from 20 years to 79 years (50 persons in each age decades). RESULTS: In imaginary vertical line Method, the excessive ocular movements were more frequent in younger people than in elder people. With age the proportion of the excessive ocular movement was gradually decreased and that of the normal ocular movement was increased until 6th decades. With other two Methods, the amounts of horizontal ocular movement was higher in younger ages than in elder ages and they decreased with aging. There were significantly moderate correlation (rs = - 0.54 to - 0.64) between age and ocular movement, and high correlation (rs = 0.79 to 0.86) among ocular amounts measured with imaginary vertical line Method, the lateral version light reflex test, and the limbus test of motility of Kestenbaum. CONCLUSIONS: This study suggests that any Method of three is reliable clinically.
Aging
;
Humans
;
Ophthalmology
;
Reflex
;
Visual Acuity
4.Optic Disc Hamartoma Combined with Optic Neuritis.
Jin Hyung KIM ; Hyoung Jun KOH ; Oh Woong KWON
Journal of the Korean Ophthalmological Society 2001;42(6):911-915
PURPOSE: Optic disc harmatoma is usually seen in tuberous sclerosis patients, but, it may be seen in otherwise normal people. Visual acuity is usually not affected by this lesion. METHODS: We experienced a 40-year-old woman with optic disc hamartoma who presented with acute visual defect. With oral triamcinolone 48mg/day, her visions recovered to normal in 2 weeks. RESULTS: Her age, symptom, and course of disease supported the diagnosis of optic neuritis. CONCLUSION: We report this patient as a case of optic disc hamartoma combined with optic neuritis.
Adult
;
Diagnosis
;
Female
;
Hamartoma*
;
Humans
;
Optic Neuritis*
;
Triamcinolone
;
Tuberous Sclerosis
;
Visual Acuity
5.A comparative study of physical properties of TiO2 thin films according to a coating method on orthodontic wires and brackets.
Korean Journal of Orthodontics 2006;36(6):451-464
The purpose of this study was to search for an appropriate method of coating TiO2 on orthodontic appliances. TiO2 thin films were deposited on orthodontic wires and brackets using sol-gel, CVD (Chemical Vapor Deposition) and PE-CVD (Plasma Enhanced-CVD) methods. The roughness of TiO2-coated surfaces was investigated via scanning electron microscope (SEM) and adhesive strength of TiO2 thin films was measured by adhesive tape pull test. Methylene blue degradation test was carried out to evaluate the photocatalytic activity of TiO2 and the corrosion resistance of TiO2 thin films against fluoride solution was also analyzed by observing the surfaces of TiO2-coated wires and brackets via SEM after immersion in sodium fluoride solution. Through the comparison of properties and photocatalytic activity of TiO2 thin films according to the coating methods, the following results were obtained. Smoother surfaces of TiO2 thin films were generated by CVD or PE-CVD methods than through the sol-gel method or the control. Adhesive strength of the TiO2 thin films was highest in PE-CVD and gradually became lower in the order of CVD, then the sol-gel method. Photocatalytic activity of TiO2 thin films on methylene blue was the highest in PE-CVD and gradually became lower in the order of CVD, then the sol-gel method. Corrosion resistance of TiO2 thin films against fluoride solution was stronger in CVD and PE-CVD methods than in the sol-gel method. The results of this study suggest that the CVD or PE-CVD methods is more appropriate than the sol-gel method for TiO2 coating on orthodontic wires and brackets.
Adhesives
;
Corrosion
;
Fluorides
;
Immersion
;
Methylene Blue
;
Orthodontic Appliances
;
Orthodontic Wires*
;
Sodium Fluoride
6.Cord Blood RBC Depletion Using 10% Pentastarch and 6% Hydroxyethylstarch.
Hyoung Soo CHOI ; Sang Hyeok KOH ; Hyoung Jin KANG ; Hee Young SHIN ; Hyo Seop AHN
Korean Journal of Pediatric Hematology-Oncology 2002;9(1):101-107
PURPOSE: For separation of RBC from cord blood, it is important to minimize RBC contamination without significant loss of nucleated cells using sedimentation agent that is safe for human use. This study was performed to investigate the possibility of replacing 6% hydroxyethylstarch (HES) with 10% pentastarch (PS) which is a lower molecular weight hetastarch-analog that is cleared from the circulation rapidly. METHODS: After dilution of cord blood till hematocrit 25%, PS or HES were added by the ratio of 7:1 and 5:1 respectively. Sedimentation was performed for 2 hours by gravity. RESULTS: PS was used in 14 cases with volume of 72.4+/-22.3 mL (45~126 mL) and HES in 8 cases with volume of 58.4+/-8.0 mL (50~70 mL). Sedimentation rate has reached at plateau by 90 minutes in PS group and it was slightly faster than in HES group. Recovery rate of nucleated cells and residual RBC were 82.9+/-10.7%, 7.6+/-5.4% in PS group, and 84.0+/-4.7%, 10.7+/-2.3% in HES group. There were no significant differences between the two groups (P=0.657, 0.219). Cell viabilities were high in both groups; 92+/-3% before separation and 97+/-2% in PS group and 98+/-3% in HES group. CD34+ cells were 0.75+/-0.28% before separation and 0.64+/-0.21% in PS group and 0.60+/-0.30% in HES group (P=0.690). CFU-GM after 2 week culture were 27.4+/-20.0 per 1 105 mononuclear cells in PS group and 22.9+/-8.6 in HES group (P=0.856). CONCLUSION: These results demonstrated that PS has similar efficacy to HES for separation of RBC from umbilical cord blood. Considering its rapid clearance and faster sedimentation rate, PS can replace HES for RBC separation in cord blood banking.
Cell Survival
;
Fetal Blood*
;
Granulocyte-Macrophage Progenitor Cells
;
Gravitation
;
Hematocrit
;
Humans
;
Hydroxyethyl Starch Derivatives*
;
Molecular Weight
7.Experience of Extracorporeal Shock Wave Lithotripsy with Electroconductive Lithotriptor (ECL, EDAP- Sonolith Praktis) in 703 Patients with Urinary Calculi.
Chang Ho LEE ; Sung Kun KOH ; Hyoung Jin KIM
Korean Journal of Urology 2005;46(4):375-381
PURPOSE: We analyzed the therapeutic results of 703 cases of urinary calculi treated using an EDAP-Sonolith Praktis, an electroconductive lithotriptor (ECL). MATERIALS AND METHODS: Between January 2000 and June 2004, 703 patients meeting the study inclusion criteria were treated with an EDAP-Sonolith Praktis. The site and size of the stones, session, auxiliary procedure, success rate, causes of failure, complication, efficiency quotient (EQ) and retreatment were analyzed. RESULTS: The records of 703 patients, in whom urinary calculi were treated by extracorporeal shock wave lithotripsy, using an EDAP-Sonolith Praktis, were retrospectively reviewed. The success rates were 99.3, 92.5, 66.7 and 12.5% for stone sizes < or=9, 10-19, 20-29 and > or=30mm, respectively, with an overall success rate of 95.3%. The EQ, mean number of session and retreatment rate were 0.71, 1.7 and 30.6%, respectively. As auxiliary procedures, double-J stenting, ureteroscopic stone removal and open surgery were performed in 6, 15 and 1, respectively. The complications were gross hematuria, flank pain, steinstrasse, nausea and fever, which were successfully controlled by conservative treatment. CONCLUSIONS: EDAP-Sonolith Praktis, an ECL, is an efficient and safe outpatient procedure for initial urinary calculi treatment.
Fever
;
Flank Pain
;
Hematuria
;
Humans
;
Lithotripsy*
;
Nausea
;
Outpatients
;
Retreatment
;
Retrospective Studies
;
Shock*
;
Stents
;
Urinary Calculi*
8.Spontaneous Separation of a Secondary Macular Epiretinal Membrane.
In Young CHUNG ; Hyoung Jin KOH ; Jong Moon PARK
Journal of the Korean Ophthalmological Society 2002;43(9):1812-1815
PURPOSE: To report a young girl with spontaneous separation of an epiretinal membrane and notable visual recovery. METHOD: We experienced a 13-year-old girl with decreased visual acuity of left eye. We diagnosed secondary epiretinal membrane associated with chorioretinitis on macula. RESULT: She had spontaneous improvement in corrected visual acuity of left eye from 0.2 to 0.8 attributable to spontaneous separation of an epiretinal membrane more than 2 years after it was diagnosed. CONCLUSION: Conservative treatment can be considered in young patients with epiretinal membrane because spontaneous separation may occur and result in improvement of visual acuity.
Adolescent
;
Chorioretinitis
;
Epiretinal Membrane*
;
Female
;
Humans
;
Visual Acuity
9.Effect of Partial Ablation of Dense Diode Laser for Threshold Retinopathy of Prematurity.
Hyoung Jin KOH ; In Young CHUNG ; Jong Monn PARK
Journal of the Korean Ophthalmological Society 2003;44(9):2035-2039
PURPOSE: To evaluate the effect of partial ablation using dense indirect laser photocoagulation with diode for the treatment of retinopathy of prematurity (ROP). METHODS: Twenty eyes of 10 premature babies with birth weight 1250 g or less and threshold ROP were treated. Diode laser photocoagulation were applied without scleral depression to the partial avascular retina in front of extravascular fibrovascular proliferation (EFP). The mean follow up period is 16.1 months. RESULTS: There was no retinal detachment, macular dragging, or other complication during follow up period. No premature babies have undergone reoperation due to the progression of disease. CONCLUSIONS: There is no difference between the effect of a dense pattern of diode laser to the partial avascular retina in front of EFP and the standard treatment to the whole avascular retina.
Birth Weight
;
Depression
;
Follow-Up Studies
;
Lasers, Semiconductor*
;
Light Coagulation
;
Reoperation
;
Retina
;
Retinal Detachment
;
Retinopathy of Prematurity*
10.Pneumatic Displacement of Submacular Hemorrhage with Intravitreal Injection of tPA and SF6 Gas.
Sung Jin LEE ; Yong Sung YOU ; Hyoung Jun KOH ; Oh Woong KWON
Journal of the Korean Ophthalmological Society 2001;42(5):724-729
Submacular hemorrhage from various causes induces the irreversible damage to the retina, leading to poor visual outcome. Surgery for removal of submacular hemorrhage was performed but the general results were not satisfactory in spite of better surgical technique. We took this study to identify the effectiveness and safety of intravitreal injection of tissue plasminogen activator(tPA) and SF6 for displacement of submacular hemorrahge. Thirteen patients who have submacular hemorrhage had undergone intravitreal injection of tPA and SF6 and positioned face down for about 1 week. Postoperative complication, best corrected visual acuity, final visual acuity, amount of displacement related to the duration of submacular hemorrhage and causal diseases were checked retrospectively. The average age of the patients was 64. Six eyes(46.2%) improved visual acuity by 2 lines or more, and 2 eyes(15.4%) lost visual acuity 2 lines or more. Complications included vitreous hemorrhage in 2 eyes, increased intraocular pressure in 2 eyes. Causes were trauma in 3 eyes and age-related macular degeneration in 10 eyes. The final visual results after 5 months or longer were related with macular lesion. Complete displacement was achieved in 10 eyes, partial displacement in 4 eyes at 1 month. The authors concluded that brief prone position after intravitreal injection of tPA and SF6 is rapid and effective method for displacement of submacular hemorrhage.
Hemorrhage*
;
Humans
;
Intraocular Pressure
;
Intravitreal Injections*
;
Macular Degeneration
;
Plasminogen
;
Postoperative Complications
;
Prone Position
;
Retina
;
Retrospective Studies
;
Visual Acuity
;
Vitreous Hemorrhage