1.Comparison of Mitomycin C Trabeculectomy and Ahmed Valve Implant Surgery for Neovascular Glaucoma.
Yong Woo IM ; Hyun Soo LYM ; Chan Kee PARK ; Jung Il MOON
Journal of the Korean Ophthalmological Society 2004;45(9):1515-1521
PURPOSE: To compare the results of mitomycin C trabeculectomy and Ahmed valve implant surgery for neovascular glaucoma (NVG). METHODS: We reviewed the medical records of 58 patients (66 eyes) with NVG who had undergone mitomycin C trabeculectomy or Ahmed valve implant surgery in the previous 5 years. Trabeculectomy (A group) was performed in 27 eyes of 24 patients and valve implant surgery (B group) in 39 eyes of 34 patients. Intraocular pressure (IOP), visual acuity, complications and the rate of surgical success of the two groups were compared. IOP under 21 mmHg without medication was considered as complete success (CS), under 21 mmHg with medication as qualified success (QS), and IOP over 22 mmHg despite medication as failure (F). RESULTS: IOP at postoperative 2 months was lower in the trabeculectomy group than in the drainage implant surgery group (16.4 +/- 11.3 mmHg, 20.9 +/- 8.7 mmHg, P=.087), but at 12 months, there was no statistically significant difference (18.4 +/- 11.5 mmHg, 17.0 +/- 6.4 mmHg, P=.608). Visual acuity also showed no significant difference. The respective rate of success between A and B groups was 66.7% and 38.5% (CS), 25.9% and 33.3% (QS), and 7.4% and 28.2% (F), at postoperative 2 months, and 47.8% and 42.3% (CS), 30.4% and 46.2% (QS), and 21.7% and 11.5% (F), at 12 months. The most common postoperative complication was hyphema in both groups, while other complications were shallow anterior chamber, valve problems, etc. CONCLUSIONS: The type of surgery had no significant effect on the success rate of neovascular glaucoma treatment at postoperative 12 months.
Anterior Chamber
;
Drainage
;
Glaucoma, Neovascular*
;
Humans
;
Hyphema
;
Intraocular Pressure
;
Medical Records
;
Mitomycin*
;
Postoperative Complications
;
Trabeculectomy*
;
Visual Acuity
2.Effects of Hyaluronic Acid on the Polymorphonuclear Leukocyte (PMN) Release of Active Oxygen and Protection of Bovine Corneal Endothelial Cells from Activated PMNs.
Hyun Soo LYM ; Youn SUH ; Chan Kee PARK
Korean Journal of Ophthalmology 2004;18(1):23-28
The goal of this study was to evaluate the function of hyaluronic acid (HA) on the active oxygen release from polymorphonuclear leukocytes (PMNs) and the protective effect of bovine corneal endothelial cells (BCEC) from activated PMNs. We used HA with three different molecular weights (MW 700, 000, 2, 000, 000, and 4, 000, 000) and five different concentrations (0, 0.1, 1, 2, and 3 mg/ml). We evaluated the amount of released superoxide from activated PMNs by using dismutase-inhibitable ferricytochrome C reduction. To compare the property and protective effect of HA with those of other viscoelastic substances, we used the same concentration of methylcellulose. HA suppressed superoxide release from PMNs and protected BCEC from activated PMNs in a dose-dependent, rather than a molecular weight-dependent, manner. The effect of HA reached almost a plateau at concentration above 2 mg/ml. However, methylcellulose, another viscoelastic substance, showed a similar effect. Therefore, it seems that the suppression of superoxide released from PMNs is not a property that is unique to HA, but is a general property of viscoelastic substances. Our results indicate that the action mechanism of HA proceeds not only through cell surface HA-receptor. We think that HA also acts as a physical barrier and/or a scavenger of superoxide.
Animals
;
Cattle
;
Cell Survival
;
Cells, Cultured
;
Comparative Study
;
Cytochromes c/metabolism
;
Cytoprotection
;
Dose-Response Relationship, Drug
;
Endothelium, Corneal/cytology/*drug effects
;
Humans
;
Hyaluronic Acid/*pharmacology
;
Methylcellulose
;
Molecular Weight
;
*Neutrophil Activation
;
Neutrophils/*drug effects/metabolism
;
Superoxides/*metabolism
3.A Case of Subfoveal Choroidal Neovascularization following Multiple Evanescent White-Dot Syndrome.
Hyun Soo LYM ; Ki Seok KIM ; Won Ki LEE
Journal of the Korean Ophthalmological Society 2004;45(7):1200-1204
PURPOSE: We report a case of subfoveal choroidal neovascularization following multiple evanescent white dot syndrome (MEWDS). METHODS: A 28-year-old female patient with vitreous floater and scotoma of her right eye was diagnosed with MEWDS. Fundus examination revealed multiple white dots at midperipheral retina, and a granular appearance of macular, which were nearly subsided at 1 month after her first visit. She complained of a sudden decrease in visual acuity of right eye at 3 months after her initial episode of MEWDS. Fundus examination showed macular hemorrhage with edema. Typical subfoveal choroidal neovascularization with leakage was confirmed by Indocyanine Green Angiography (ICGA), which was treated by photodynamic therapy (PDT). RESULTS: Subfoveal choroidal neovascularization following MEWDS is rare, and this is the first Korean case report.
Adult
;
Angiography
;
Choroid*
;
Choroidal Neovascularization*
;
Edema
;
Female
;
Hemorrhage
;
Humans
;
Indocyanine Green
;
Photochemotherapy
;
Retina
;
Scotoma
;
Visual Acuity
4.Prevalence and Risk Factors of the Metabolic Syndrome as Defined by NCEP-ATP III.
Youl Lee LYM ; Seung Wook HWANG ; Hyun Jun SHIM ; Eun Hye OH ; Yoo Soo CHANG ; Be Long CHO
Journal of the Korean Academy of Family Medicine 2003;24(2):135-143
BACKGROUNDS: The Third Report of the Adult Treatment Panel (NCEP-ATP III) has newly introduced the clinical diagnosis guideline of the metabolic syndrome which is characterized by clustering of the CHD risk factors. The purpose of this study was to estimate the prevalence of the metabolic syndrome in Korean adults by the newly introduced guideline and to evaluate possible risk factors with the syndrome. METHODS: The subject of this study included 3,873 adults (males 2,144, females 1,729) aged 20 years or older who visited the Health Promotion Center of SNUH. Among the subjects, we excluded those who did not have records of physical parameters, blood test results and who were on current medications except antihypertensives and oral hypoglycemic agents. We estimated the prevalence of the metabolic syndrome in Korean adults according to the ATP III waist-circumference guideline, Asia-Pacific waist- circumference, and Body Mass Index (BMI), respectively, and calculated the age-adjusted prevalence of the metabolic syndrome using the direct standardized method. While applying the Asia-Pacific waist circumference, we estimated the prevalence of the metabolic syndrome by age group and the prevalence of the individual abnormalities of the metabolic syndrome. To identify variables associated with the metabolic syndrome, we used the multiple logistic regression method to estimate the prevalence odds ratios for the metabolic syndrome vs. the non-metabolic syndrome. RESULTS: The age-adjusted prevalence of the metabolic syndrome in Korean adults was 9.3% when ATP III waist-circumference was applied, 15.4% for Asia-Pacific waist-circumference, and 18.6% for body mass index (BMI). The highest prevalence of the individual criteria among the metabolic syndrome diagnostic criteria in men was hypertension, followed by hypertriglyceridemia, abdominal obesity, high fasting blood glucose, and low HDL-cholesterolemia. And in women, it was also hypertension, followed by abdominal obesity, low HDL- cholesterolemia, hypertriglyceridemia, and high fasting blood glucose. The prevalence increased from 3.8% among participants aged 20 through 29 years to 27.1% for ages 60 through 69 years and 31.6% for ages above 70 years. Females, increasing age, increased BMI, current smoking, physical inactivity were higher risk factors for the metabolic syndrome, but mild drinking was a lower risk factor for the metabolic syndrome. CONCLUSION: These results show that the metabolic syndrome is highly prevalent although less prevalent than in American adults. The family physician should focus on the screening and comprehensive management of the metabolic syndrome.
Adenosine Triphosphate
;
Adult
;
Antihypertensive Agents
;
Blood Glucose
;
Body Mass Index
;
Diagnosis
;
Drinking
;
Fasting
;
Female
;
Health Promotion
;
Hematologic Tests
;
Humans
;
Hypertension
;
Hypertriglyceridemia
;
Hypoglycemic Agents
;
Logistic Models
;
Male
;
Mass Screening
;
Obesity, Abdominal
;
Odds Ratio
;
Physicians, Family
;
Prevalence*
;
Risk Factors*
;
Smoke
;
Smoking
;
Waist Circumference