1.A clinical analysis of the appendicitis in children.
Tae Young JUNG ; Dae Hwa CHOI ; Chang Woo LEE
Journal of the Korean Surgical Society 1992;43(5):767-775
No abstract available.
Appendicitis*
;
Child*
;
Humans
2.Clinical review of surgical procedures in patients over 65 years of age.
hyun hun SHIN ; Dae Hwa CHOI ; Chang Woo LEE
Journal of the Korean Surgical Society 1993;44(6):839-846
No abstract available.
Humans
3.General Recommendations for Immunization Practices in Children and Adolescents.
Journal of the Korean Medical Association 2009;52(3):225-232
Immunization is the most cost-effective method of preventing many infectious diseases. Recommendations for immunization practices are based on scientific knowledge of vaccine characteristics, the principles of immunization, the epidemiology of specific diseases, host characteristics, and expert opinion of public health officials and specialists in clinical and preventive medicine on vaccine benefit and safety issues. Therefore, recommendations for vaccination practices balance scientific evidence of benefits and risks of immunization programs. Many of the standards for child and adolescent vaccination programs that have been previously published are universal and are applicable to many countries where different public health concerns may exist. However, several updated changes are added to these standards to maximize the benefits from the vaccination services. This report will provide the most recent technical guidance about common vaccination concerns for clinicians who administer vaccines to infants, children, and adolescents.
Adolescent
;
Child
;
Collodion
;
Communicable Diseases
;
Expert Testimony
;
Humans
;
Immunization
;
Immunization Programs
;
Infant
;
Preventive Medicine
;
Public Health
;
Risk Assessment
;
Specialization
;
Vaccination
;
Vaccines
4.A study on surface of various abutment screws.
Chan Ik PARK ; Chae Heon CHUNG ; Han Cheol CHOI ; Dae Hwa BACK
The Journal of Korean Academy of Prosthodontics 2003;41(3):351-359
STATEMENT OF PROBLEM: Regardless of any restoration, most of case, we used in screw connection between abutment and implant. For this reason, implant screw loosening has been remained problem in restorative practices. PURPOSE: The purpose of this study was to compare surface of coated/plated screw with titanium and gold alloy screw and to evaluate physical property of coated/plated material after scratch test in FESEM investigation. MATERIAL AND METHODS: GoldTite, titanium screw provided by 3i (Implant Innovation, USA) and TorqTite, titanium screw by Steri-Oss (Nobel Biocare, USA) and gold screw, titanium screw by AVANA (Osstem Implant, korea) - were selected for this study. Each abutment screw surface was observed at 100 times, and then screw crest, root, and slope were done more detailed numerical value, at 1000 times with FESEM. A micro-diamond needle was also prepared for the scratch test. Each abutment screw was fixed, micro-diamond scratch the surface of head region was made at constant load and then was observed central region and periphery of fine trace through 1000 times with FESEM. RESULTS: The surface of GoldTite was smoother than that of other kinds of screw and had abundant ductility and malleability compared with titanium and gold screw. The scratch test also showed that teflon particles were exfoliated easily in screw coated with teflon. Titanium screw had a rough surface and low ductility. CONCLUSION: It was recommended that the clinical use of gold-plated screw would prevent a screw from loosening.
Alloys
;
Head
;
Needles
;
Polytetrafluoroethylene
;
Titanium
5.The change of indications for cesarean section for recent 20 years.
Young Chul CHOI ; Dong Ho KIM ; Dong Jin KIM ; Dae Hwa KIM ; Hun Jung IM
Korean Journal of Obstetrics and Gynecology 1993;36(7):2561-2570
No abstract available.
Cesarean Section*
;
Female
;
Pregnancy
6.Correlation between Chromosome Abnormalities and Genomic Imprinting in Developing Human 2) Independent Expression of Imprinted Genes, H19 and Insulin-like growth factor II (IGF2), in Androgenetic Hydatidiform Moles.
Sung Ik CHANG ; Bo Hwa CHOI ; Tae Sung LEE ; Dae Kwang KIM ; In Hwan LEE
Korean Journal of Anatomy 1998;31(4):611-617
Human uniparental gestations such as androgenetic hydatidiform moles provide a model to evaluate the integrity of parent-specific gene expression,-i.e, genomic imprinting,- in the absence of a complementary parental genetic contribution. Several imprinted genes are characterized so far including the insulin-like growth factor-2 gene (IGF2) coding for a fetal growth factor and the Hl9 gene whose normal function is unknown but which is likely to act as an untranslated mRNA for its tumor-suppressing function. IGF2 is expressed exclusively from the paternal allele while Hl9 from the maternal allele. Such an alternate expression is quite interesting because both Hl9 and IGF2 genes are located close to each other on chromosome 11p15.5. An in situ hybridization analysis has shown strong expression of Hl9 and IGF2 alleles in nine hydatidiform moles. Especially, a prominent expression of Hl9 and IGF2 was detected in cytotrophoblast and the cellular localization was almost paralleled in Hl9 and IGF2 transcripts . Hl9 and IGF2 genes could be expressed either biallelically or monoallelically in the moles. However, IGF2 biallelic expression did not affect allele-specificity of Hl9 expression.. These results suggest that both H19 and IGF2 transcripts are expressed in the same cells and that the functional imprinting of H19 and IGF2 genes in hydatidiform moles can be controlled individually and independently of each other.
Alleles
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Chromosome Aberrations*
;
Clinical Coding
;
Female
;
Fetal Development
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Genomic Imprinting*
;
Humans*
;
Hydatidiform Mole*
;
In Situ Hybridization
;
Insulin-Like Growth Factor II*
;
Parents
;
Pregnancy
;
RNA, Messenger
;
Trophoblasts
7.Familial Occurrence of Moyamoya Disease: Report of Two Families.
Sang Hwa KIM ; Nam Je KANG ; Dae Seong KIM ; Dae Soo JEONG ; Kyu Hyun PARK ; Chang Hwa CHOI
Journal of the Korean Neurological Association 1998;16(4):603-606
BACKGROUND: Whether the changes of risk factors (hypertension, diabetes mellitus, smoking, alcohol) can precipitate stroke remains unknown, and antecedent infection and psychologic stress are described inss case-control study, 113 consecutive patients with acute cerebrovascular disease (38 small vessel disease, 43 large vessel disease, 11 cardiogenic infarction, 4 infarction of undetermined cause, and 17 intracerebral hemorrhage) and 23 control subjects were evaluated. Changes of the risk factors (and their management) were interviewed. A sign/symptom based questionnaire was used to characterize the prevalence of recent prior infection and exposure to coldness. Psychologic stress was measured with the use of Social Readjustment Rating Scale. RESULTS: The negative change of alcohol drinking was significantly higher in the stroke group. However, there was no significant difference between stroke and control groups in the changes of thether risk factors. The prevalence of previous (within 1 month) infection was significantly higher in the stroke group compared with control subjects (p=0.03). However, there were no significant differences among the stroke subtypes in the prevalence of infection(p=0.08). Upper respiratory tract infections constituted the most common type of infection. The exposure to coldness was significantly higher in the stroke group compared with control subjects (p=0.002). The level of stress within the prior 1 month/1 year was significantly higher in the stroke group than control group (p=0.01). CONCLUSION: Our data suggest that preceding infection, exposure to coldness, psychologic stress, and the negative change of alcohol drinking may be comm.
Alcohol Drinking
;
Case-Control Studies
;
Diabetes Mellitus
;
Humans
;
Infarction
;
Moyamoya Disease*
;
Prevalence
;
Surveys and Questionnaires
;
Respiratory Tract Infections
;
Risk Factors
;
Smoke
;
Smoking
;
Stress, Psychological
;
Stroke
8.Rising Incidence of Diabetes in Young Adults in South Korea: A National Cohort Study
Hyun Ho CHOI ; Giwoong CHOI ; Hojun YOON ; Kyoung Hwa HA ; Dae Jung KIM
Diabetes & Metabolism Journal 2022;46(5):803-807
We investigated the incidence of diagnosed diabetes in South Korean adults (aged ≥20 years) by analyzing data for the National Health Insurance Service–National Sample Cohort. From 2006 to 2015, the overall incidence rate of diagnosed diabetes decreased by approximately 0.1% per year until 2015. Although, this trend was observed in individuals aged 40 years or over, the rate increased slightly in the 20–29 and 30–39 years age groups, from 0.5 to 0.7 and 2.0 to 2.6 per 1,000 individuals, respectively. The proportion of obese young adults with diabetes increased remarkably, from 51.4% in 2006 to 72.4% in 2015. Thus, young adults need early identification and weight-control strategies to prevent diabetes.
9.Diabetes and the Risk of Infection: A National Cohort Study
Eun Jin KIM ; Kyoung Hwa HA ; Dae Jung KIM ; Young Hwa CHOI
Diabetes & Metabolism Journal 2019;43(6):804-814
BACKGROUND: Several studies have shown that people with diabetes are vulnerable to infection. This study compared the risk of infection-related hospitalizations, intensive care unit (ICU) admission, and deaths between the person with diabetes and the generalpopulation in South Korea.METHODS: We conducted a cohort study of 66,426 diabetes and 132,852 age-sex-region-matched non-diabetes controls from the general population using a sample of data from the National Health Insurance Service-National Sample Cohort. The cohort was followed up for 9 years. Infections were classified into 17 separate categories. We used Poisson regression, with adjustment for household income and other comorbidities, to estimate incidence rate ratios (IRRs) in order to compare of infection-related hospitalizations, ICU admissions, and deaths.RESULTS: Compared to non-diabetes controls, diabetes group had a greater risk of almost all the types of infections considered, with the adjusted IRRs (aIRRs) for infection-related hospitalizations being the highest for hepatic abscess (aIRR, 10.17; 95% confidence interval [CI], 7.04 to 14.67), central nervous system (CNS) infections (aIRR, 8.72; 95% CI, 6.64 to 11.45), and skin and soft tissue infections other than cellulitis (SSTIs) (aIRR, 3.52; 95% CI, 3.20 to 3.88). Diabetes group also had a greater risk of ICU admission and death due to SSTIs (aIRR, 11.75; 95% CI, 7.32 to 18.86), CNS infections (aIRR, 5.25; 95% CI, 3.53 to 7.79), and bone and joint infections (aIRR, 4.78; 95% CI, 3.09 to 7.39).CONCLUSION: In South Korea, people with diabetes has a considerably higher incidence of infection-related hospitalizations and deaths than the general population.
Cellulitis
;
Central Nervous System
;
Cohort Studies
;
Comorbidity
;
Diabetes Mellitus
;
Family Characteristics
;
Hospitalization
;
Humans
;
Incidence
;
Intensive Care Units
;
Joints
;
Korea
;
Liver Abscess
;
National Health Programs
;
Skin
;
Soft Tissue Infections
10.A Case of Parry-Romberg Syndrome in Neonate.
Chun Hyuk CHANG ; Jin Hwa JUNG ; Sung Min CHO ; Dae Seop CHOI
Journal of the Korean Pediatric Society 1999;42(11):1589-1593
Parry-Romberg syndrome(Progressive hemifacial atrophy), described in the last century by Parry(1825) and Romberg(1846), is a very rare disorder characterized by a slowly progressive and self-limited unilateral(rarely bilateral) atrophy of the faces affecting variably the skin, subcutaneous fat tissues, musculature, connective tissue, cartilage and bones. And this disorder is usually accompanied by contralateral Jacksonian epilepsy, trigerminal neuralgia, and changes in the eyes and hair. The onset is slow and progressive, starting at 5-15 years of age and lasting from 2-10 years, ending with the face being "burned out". There are a few cases of this disease which presented during the neonatal period. This disorder seems to affect females more than males, and its etiology and incidence has yet to be determined. Trauma, infection with a slow virus, sympathetic dysfunction, immunological abnormality and cranial vascular malformation are proposed causes. No typical or consistent neuropathologic findings occur. No specific treatment for the syndrome exists; however, various reconstructive surgical procedures can have in reasonably good cosmetic effects, as well as antiinflammatory or immunosuppressive treatment. We report a case of Parry-Romberg syndrome, which was presented at 1 month of age, and has progressd to contralateral hemiparesis.
Atrophy
;
Cartilage
;
Connective Tissue
;
Epilepsy
;
Facial Hemiatrophy*
;
Female
;
Hair
;
Humans
;
Incidence
;
Infant, Newborn*
;
Male
;
Neuralgia
;
Paresis
;
Reconstructive Surgical Procedures
;
Skin
;
Subcutaneous Fat
;
Vascular Malformations