1.UPPER EYELID BLEPHAROPLASTY USING CARBON DIOXIDE LASER.
Sung Bong AHN ; Sung Ryul LIM ; Sung Gyun JUNG ; Chang Hyun KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(3):614-620
The safety and efficacy of the CO2laser as a replacement for the steel scalpel is well documented in plastic surgery, but the use of the laser blepharoplasty has been controversy. This study compares and contrasts the use of the CO2 laser with conventional method in cosmetic upper eyelid blepharoplasty. Thirteen Patients underwent blepharoplasty in a paired comparison study. Four patients(Group A) underwent blepharoplasty by laser, another four patients (Group B) underwent blepharoplasty by conventional method, and the other five patients(Group C) underwent upper eyelid blepharoplasty using the laser on one eye and a conventional method on the other side. Preoperative factor(set up time, equipment), intraoperative factor(actual operation time, bleeding, visibility), postoperative factor(swelling, ecchymosis, immediate & short term result) were evaluated. The advantage of using the CO2 laser rather than the steel scalpel in blepharoplasty are less bleeding and superior intraoperative visibility. The disadvantage of using the laser compared with steel scalpel include the cost of purchasing and maintaining the laser equipment, the need for additional and extensive laser training for surgeons and assistants, and the need for two assistants rather than the one needed for scalpel surgery There were no complications with either the scalpel or the laser.
Bleeding Time
;
Blepharoplasty*
;
Carbon Dioxide*
;
Carbon*
;
Ecchymosis
;
Eyelids*
;
Hemorrhage
;
Humans
;
Lasers, Gas*
;
Matched-Pair Analysis
;
Steel
;
Surgery, Plastic
2.ENDOSCOPIC CARPAL TUNNEL RELEASE: AGEE SINGLE PORTAL TECHNIQUE.
Sung Bong AHN ; Sung Ryul LIM ; Sung Gyun JUNG ; Chang Hyun KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(3):598-607
For many years the standard surgical treatment for carpal tunnel syndrome has been division of the transverse carpal ligament under direct vision through a palm incision. Although the effectiveness and Patient acceptability of the conventional open carpal tunnel release are good, disability from a painful palm cutaneous neuroma, and prolonged swelling are reported Endoscopic carpal tunnel release seems to result in less postoperative morbidity, and minimal serious complications. Because endoscopic carpal tunnel release leaves the overlying skin, the subcutaneous fat and the palmer fascia and its attachments to the thenar and hypothenar musculature intact its proponents maintain that their patient have less scar tenderness, quicker recovery of grip strength, and earlier to return activities of daily living and work The endoscopic approach(Agee single portal technique), which includes specific localization of the hook of hamate, flexor retinaculum and the superficial palmar arch utilizing topographical landmarks, avoids entry into Guyon's canal and common digital nerves. We experienced four cases of carpal tunnel syndrome. In four cases, patients with carpal tunnel syndrome have been performed endoscopic carpal tunnel release with minor complication.
Activities of Daily Living
;
Carpal Tunnel Syndrome
;
Cicatrix
;
Fascia
;
Hand Strength
;
Humans
;
Ligaments
;
Neuroma
;
Skin
;
Subcutaneous Fat
3.Biochemical Assisted Hatching of Embryos in Human IVF-ET Program.
Sung Il ROH ; Jeoung Eun LEE ; Dong Ryul LEE ; Hyun Soo YOON
Korean Journal of Obstetrics and Gynecology 1999;42(11):2426-2433
Human assisted reproductive technology programs have been being developed marvelously during this decade. However, implantation rates following embryo replacement remain low, regardless of increased fertilization rates by ICSI. One proposed possibility limiting the successful implantation is an impaired hatching caused by suboptimal culture conditions. As to improve the hatching potential of blastocysts, assisted hatching by an artificial alteration of zona pellucida(ZP) have been done in many laboratories using the various methods. We tried to investigate whether the supplementation of proteases into culture media has any effect on development, zona structure, and/or hatching of mouse embryos. Supplementation of either pronase E(PE) or proteinase K(PK) in culture media did not affect development up to blastocyst but significantly increased hatching rate. And we observed the alteration of ultrastructure and casein binding properties of ZP in mouse embryos. Also we investigated the effects of protease on development of human embryos and pregnancy rates in human ART program. From July 1994 to December 1996, 792 cycles(for study I) and 1095 cycles(for study II) undergoing the IVF-ET program in MizMedi Hospital were randomly selected for BAH. The concentrations of proteases used in this study were 1microgram/ml PE, 0.1microgram/ml PK and 1microgram/mlPE+0.1microgram/ml PK in HTF with 0.5% human serum albumin(HSA), and in vitro fertilized embryos were cultured for 24 hours. We analyzed the efficiency and stability of biochemical assisted hatching(BAH) according to the clinical profiles of patients and fertilization methods. After cultured in HTF with proteases for 24 hours of human embryos, the thinning in zona pellucida of embryos was observed but its development was not disturbed. Also, clinical pregnancy rates were higher in the PE, PK and PE+PK groups than the control group without proteases(36.0%(32/89), 35.3%(36/102), 35.1%(39/111) vs. 25.5%(125/490), p<0.05). The live birth rate in the PE, PK and PE+PK groups were increased than control, and the abortion rate were not different. They were showed a effect and safety of proteases treatment in human embryos. We selected PE as BAH for study II because of slightly better embryonic morphology and pregnancy rate. In patients over 35 years old, clinical pregnancy rates of the BAH group was higher than that of the control group(31.4%(58/185) vs. 22.2%(51/230); p<0.05). And in the cases with few oocytes retrieval, or less than 3 cycles of IVF-ET, clinical pregnancy rates of the BAH group was significantly higher than that of the control group(36.8%(86/234) vs. 27.2%(93/342), p<0.05; 36.8%(148/402) vs. 29.9%(168/562), p<0.05). In BAH groups, the clinical pregnancy rate was similar between conventional IVF and ICSI group. From above results, it is suggested that improved hatching by protease treatment is due to physiological alteration of ZP structure, giving rise to the similar hatching process to that in vivo. We suggest that BAH using protease is a simple, safe and economic technique compared to the other known assisted hatching techniques in human ART program.
Abortion, Induced
;
Adult
;
Animals
;
Blastocyst
;
Caseins
;
Culture Media
;
Embryonic Structures*
;
Female
;
Fertilization
;
Herpes Zoster
;
Humans*
;
Live Birth
;
Mice
;
Oocytes
;
Peptide Hydrolases
;
Pregnancy Rate
;
Pronase
;
Reproductive Techniques, Assisted
;
Sperm Injections, Intracytoplasmic
;
Zona Pellucida
4.Two Cases of Ovarian Pregnancy.
Sung Chul JUN ; Ji Hyun SONG ; Sung Lae SONG ; Young Ryul CHOI
Korean Journal of Obstetrics and Gynecology 2003;46(11):2287-2290
Primary ovarian pregnancy is comparatively rare in ectopic pregnancy. Ovarian pregnancy occurs in corpus luteum cyst and is usually accompanied with the rupture of ovary and a massive hemoperitoneum. It presents as a hemorrhagic ovary and frequently misdiagnosed as a ruptured corpus luteum. Spiegelberg's criteria should be fulfilled for the diagnosis of ovarian pregnancy. Two cases of ovarian pregnancy were presented with a brief review of the literatures.
Corpus Luteum
;
Diagnosis
;
Female
;
Hemoperitoneum
;
Ovarian Cysts
;
Ovary
;
Pregnancy
;
Pregnancy, Ectopic*
;
Rupture
5.Non-typhoid Salmonella meningitis complicated by a infarction of basal ganglia.
Hyunmi KIM ; Jin Yeoung JEOUNG ; Soo Youn HAM ; Sung Ryul KIM
Journal of Korean Medical Science 1999;14(3):342-344
A previously healthy 16-month-old Korean girl with symptoms of fever, vomiting, and generalized tonic seizure was diagnosed to have Group D non-typhoid Salmonella meningitis. The patient was treated with ceftriaxone (100 mg/kg/day) and amikin (22.5 mg/kg/day) initially and ciprofloxacin (30 mg/kg/day) was added later because of clinical deterioration and disseminated intravascular coagulation. Brain CT performed on the second day showed a well-demarcated low density lesion in the right lentiform nucleus and both caudate nuclei, without evidence of increased intracranial pressure. MRI performed on the 11th day confirmed CT scan findings as well as right subdural fluid collection, brain atrophy, and ventriculomegaly. She underwent subdural drainage and later ventriculo-peritoneal shunt operation. Despite receiving intensive treatment, she still has severe neurologic sequelae. Our case shows that infarctions of basal ganglia and thalami are not specific for tuberculous meningitis and that meningitis complicated by infarction is indicative of grave prognosis.
Basal Ganglia Diseases/radiography
;
Basal Ganglia Diseases/pathology
;
Basal Ganglia Diseases/complications
;
Basal Ganglia Diseases/cerebrospinal fluid
;
Brain/radiography
;
Brain/pathology
;
Case Report
;
Cerebral Infarction/radiography
;
Cerebral Infarction/pathology
;
Cerebral Infarction/complications*
;
Cerebral Infarction/cerebrospinal fluid
;
Female
;
Follow-Up Studies
;
Human
;
Infant
;
Magnetic Resonance Imaging
;
Meningitis, Bacterial/radiography
;
Meningitis, Bacterial/pathology
;
Meningitis, Bacterial/complications*
;
Meningitis, Bacterial/cerebrospinal fluid
;
Salmonella Infections/complications*
;
Tomography, X-Ray Computed/methods
6.Evaluation of the Biodurability of Polyurethane-Covered Stent Using a Flow Phantom.
Dong Hyun KIM ; Sung Gwon KANG ; Jung Ryul CHOI ; Ju Nam BYUN ; Young Chul KIM ; Young Moo AHN
Korean Journal of Radiology 2001;2(2):75-79
OBJECTIVE:To evaluate the biodurability of the covering material in retrievable metallic stents covered with polycarbonate polyurethane. MATERIALS AND METHODS: Using a peristaltic pump at a constant rate of 1ml/min, bile was recirculated from a reservoir through a long tube containing four stents. Each of these was removed from the system every two weeks and a radial tensile strength test and scanning electron microscopy (SEM) were performed. Each stent, removed at 2, 4, 6 and 8 weeks, was compared with a control stent not exposed to bile juice. RESULTS: Gross examination showed that stents were intact at 2 weeks, but at 4, 6 and 8 weeks cracks were observed. The size of these increased gradually in accordance with the duration of exposure, and at 8 weeks several large holes in the polyurethane membrane were evident. With regard to radial tensile strength, extension and peak load at break were 84.47% and 10.030 N/mm, 54.90% and 6.769 N/mm, 16.55% and 2.452 N/mm, 11.21% and 1.373 N/mm at 0, 2, 4 and 6 weeks, respectively. Scanning electron microscopy at 2 weeks revealed intermittent pitting and cracking, and examination at 4, 6 and 8 weeks showed that the size of these defects was gradually increasing. CONCLUSION: When the polyurethane membrane was exposed to bile, biodegradation was first observed at week two and increased gradually according to the duration of exposure.
Bile Acids and Salts/physiology
;
Biodegradation
;
Hydrogen-Ion Concentration
;
Microscopy, Electron, Scanning/*instrumentation
;
Phantoms, Imaging
;
*Polyurethanes
;
*Stents
;
Support, Non-U.S. Gov't
;
Tensile Strength
;
Time Factors
7.A Survey of Pharmacy Students' Perceptions of National Drug Supply Strategy through Public Pharmaceutical Companies.
Sung Ryul JEON ; Jung Eun HA ; Hyun Soon SOHN
Korean Journal of Clinical Pharmacy 2017;27(4):238-249
BACKGROUND: Currently establishment of public pharmaceutical companies became an issue for securing stable supply of national essential drugs in order to respond appropriately to national public health crisis. Pharmacy students as future pharmacists need to be interested in drug related issues under the discussion in our society. This study aimed to investigate perceptions of pharmacy students on the national drug supply strategy through public pharmaceutical companies. METHODS: A 20-items questionnaire designed for this study was used. Pharmacy students nationwide were enrolled in July 2017. They responded to questions through on-line survey program. Data were analyzed descriptively. RESULTS: 160 students from 26 pharmacy schools participated. 5th and 6th grade students accounted for two-thirds, and one third aspired future jobs in pharmaceutical industry. Among responders, 71.3% was unaware of current national essential drugs, 52.5% did not know the Rare and Essential Drug Center, and 91.9% was unaware of the legislation on the supply and management of essential drugs. 82.5% favored the establishment of public pharmaceutical companies. 80.6% agreed that government should intervene in pharmaceutical market for ensuring drug accessibilities, 73.8% agreed that public pharmaceutical companies make possible to reach a goal of stable supply of pharmaceuticals, and 85.1% agreed that active compulsory license by public pharmaceutical companies is necessary. CONCLUSION: We found that pharmacy students recognized the need for governmental control to achieve social values of pharmaceuticals. More attention and participation of the pharmacy students as well as pharmacists in the process of national debate on public pharmaceutical companies are expected.
8.Enhancement of beta-Glucan Content in the Cultivation of Cauliflower Mushroom (Sparassis latifolia) by Elicitation.
Hyun PARK ; Kang Hyeon KA ; Sung Ryul RYU
Mycobiology 2014;42(1):41-45
The effectiveness of three kinds of enzymes (chitinase, beta-glucuronidase, and lysing enzyme complex), employed as elicitors to enhance the beta-glucan content in the sawdust-based cultivation of cauliflower mushroom (Sparassis latifolia), was examined. The elicitors were applied to the cauliflower mushroom after primordium formation, by spraying the enzyme solutions at three different levels on the sawdust-based medium. Mycelial growth was fully accomplished by the treatments, but the metabolic process during the growth of fruiting bodies was affected. The application of a lysing enzyme resulted in an increase in the beta-glucan concentration by up to 31% compared to that of the control. However, the treatment resulted in a decrease in mushroom yield, which necessitated the need to evaluate its economic efficiency. Although we still need to develop a more efficient way for using elicitors to enhance functional metabolites in mushroom cultivation, the results indicate that the elicitation technique can be applied in the cultivation of medicinal/edible mushrooms.
Agaricales*
;
Brassica*
;
Fruit
;
Glucuronidase
;
Metabolism
9.The Effect of Eradication of Methicillin-resistant Staphylococcus aureus from Neonatal Intensive Care unit by Aggressive Infection Control Measures : Isolation Program and the Use of Chlorhexidine.
Hyoung Jin KIM ; Sung Jin KANG ; Hyun Kyung PARK ; Chang Ryul KIM ; Tae Yeal CHOI ; Sung Hee OH
Korean Journal of Perinatology 2010;21(3):248-257
PURPOSE: The increasing incidence and mortality of Methicillin-resistant Staphylococcus aureus (MRSA) colonization or blood-stream infection is an important problem in neonatal intensive care unit (NICU). The aims of this study are to evaluate the effective eradication of MRSA through the aggressive isolation program with or without the use of 2% chlorhexidine-gluconate (CHG) and to investigate significant risk factors of MRSA colonization in NICU. METHODS: This study is a retrospective collected data among 414 neonates admitted to a NICU from June 1, 2007, through October 31, 2009. We divided the groups into 3 periods according to isolation program or the use of 2% CHG. RESULTS: The aggressive isolation program decreased the incidence of MRSA colonization and the additional use of 2% CHG has reduced much more the incidence of MRSA colonization and bacteremia. Days of hospitalization, use of central line, days of using central line, presence of respiratory distress syndrome (RDS) or bronchopulmonary dysplasia (BPD), isolation program, and isolation program + use of CHG were significant factors associated with MRSA colonization or bacteremia in univariate logistic regression analysis. Days of using central line and isolation program + use of CHG were significant after in multivariate logistic regression analysis. CONCLUSION: Hand hygiene, active MRSA surveillance culture, isolation, contact isolation, nursing/doctor cohorts and the use of 2% CHG as skin sterilizer were effective in eradicating to MRSA. The effort of shortening the days of using central line is also necessary.
Bacteremia
;
Bronchopulmonary Dysplasia
;
Chlorhexidine
;
Cohort Studies
;
Colon
;
Hand Hygiene
;
Hospitalization
;
Humans
;
Incidence
;
Infant, Newborn
;
Infection Control
;
Intensive Care, Neonatal
;
Logistic Models
;
Methicillin Resistance
;
Methicillin-Resistant Staphylococcus aureus
;
Retrospective Studies
;
Risk Factors
;
Skin
10.A Study on Iron Status and Anemia of Rural and Urban Middle School Students in Ulsan.
Sang Kyu PARK ; Hyun Mi KIM ; Jin Yeong JEONG ; Sung Jong PARK ; Jae Hoo PARK ; Sung Ryul KIM ; Soon Myung HONG
Korean Journal of Pediatric Hematology-Oncology 1999;6(2):235-249
PURPOSE: This study was aimed at assessing the difference of the prevalence of iron deficiency and iron deficiency anemia among rural and urban middle school students in relation to dietary habit. METHODS: With a questionnaire, blood samples were obtained from 439 apparently healthy rural and urban middle school students residing in Ulsan. Anemia was defined as hemoglobin level of 12.6 g/dL or less for boys and 11.9 g/dL or less for girls. Iron deficiency was defined as serun ferritin level less than 12 micrograms/L or/and transferrin saturation less than 14%. Iron deficiency anemia was defined as iron deficiency plus low hemoglobin. RESULTS: 1) In boys, the prevalence rate of anemia was 17.2%. Among these anemias, 5.4% were found to be iron deficiency anemia. In girls, the prevalence of anemia increased with age. The prevalence of iron deficiency anemia was 6.9%. 2) In girls, the prevalence rate of anemia in rural area was higher than that of anemia in urban area (12.6% in rural, 6.1% in urban, P<0.01). 3) The prevalence of anemia and iron deficiency in the students with menstruation was 10.6% and 33.1%, which was higher than the prevalence of 2.5% and 7.5% in those who did not have the menarche (P<0.001 and P<0.001, respectively). 4) Dietary intake of rural and urban middle school students was estimated lower in energy, iron than the recommeded dietary allowance (RDA). In girls, dietary intake of rural middle school students was estimated lower in iron, niacin, and vitamin C than that of urban middle school students. 5) Nutritional factors such as energy, carbohydrate, protein, and phosphorus showed positive correlation with RBC, hemoglobin (P<0.05). CONCLUSION: It is recommended to enforce the nutritional education to take enough iron in middle school students to reduce the high prevalence rate of anemia among pubertal students.
Anemia*
;
Anemia, Iron-Deficiency
;
Ascorbic Acid
;
Education
;
Female
;
Ferritins
;
Food Habits
;
Humans
;
Iron*
;
Menarche
;
Menstruation
;
Niacin
;
Phosphorus
;
Prevalence
;
Surveys and Questionnaires
;
Transferrin
;
Ulsan*