1.The value of 2-D echocardiography in diagnosis of CHD.
Sang Kyung YUN ; Young Woon BAEK ; Hyun Ki JUNG
Journal of the Korean Pediatric Society 1991;34(5):662-667
No abstract available.
Diagnosis*
;
Echocardiography*
2.Lymphokine-activated killer(LAK) cell activity in tumor-transplanted mice(II).
Sang Yun NAM ; Yun Tai LEE ; Young Il KIM ; Si Young KIM ; Kyung Sam CHO
Journal of the Korean Cancer Association 1992;24(3):365-377
No abstract available.
3.Lymphokine-activated killer(LAK) cell activity in tumor-transplanted mice(I).
Sang Yun NAM ; Yun Tai LEE ; Young Il KIM ; Si Young KIM ; Kyung Sam CHO
Journal of the Korean Cancer Association 1991;23(2):218-229
No abstract available.
4.Fine needle aspiration cytology of malignant ameloblastoma metastasized to the lung-a case report-.
Yun Kyung KANG ; In Ae PARK ; Chang Yun LIM ; Eui Keun HAM ; Sang Kook LEE
Korean Journal of Cytopathology 1993;4(2):167-170
No abstract available.
Ameloblastoma*
;
Biopsy, Fine-Needle*
5.Etiology of Pediatric Healthcare-associated Infections in a Single Center (2007-2011).
Ki Wook YUN ; Mi Kyung LEE ; Sin Weon YUN ; Soo Ahn CHAE ; In Seok LIM ; Eung Sang CHOI ; Byoung Hoon YOO
Korean Journal of Nosocomial Infection Control 2012;17(1):13-20
BACKGROUND: Healthcare-associated infections (HAIs) are among the most important threats to patient safety. When hospitalized children face these threats, there is morbidity, mortality, prolonged hospitalization, and increased healthcare costs. Research on local healthcare epidemiology is necessary to enhance collective knowledge and evidence formanaging this problem. METHODS: We performed a retrospective analysis of databases of patients who were diagnosed with HAIs at Chung-Ang University Hospital (CAUH) from 2007 through 2011. Cases were selected from the microbiology registry databases. The data on prevalence of HAIs in various wards and its annual trends were compared to previously reported nationwide data. Moreover, we analyzed the patterns of antibiotic susceptibility results for HAI pathogens. RESULTS: A total of 181 HAIs were identified in 122 patients. The HAI rate among pediatric patients at CAUH was 2.4/1,000 person-hospital days. Urinary tract infections (UTIs) (53 episodes, 29.3%) were the most common, followed by pneumonia (33 episodes, 18.2%). Staphylococcus aureus was found to be the most common gram-positive organism, whereas Escherichia coli was the most common gram-negative organism. Methicillin-resistant S. aureus (MRSA) comprised 84% of the S. aureus infections. Imipenem resistance was detected in 58.8% and 55.0% of Acinetobacter baumannii and Pseudomonas aeruginosa isolates, respectively. CONCLUSION: Between 2007 and 2011, UTIs were the most common type of HAIs, and MRSA was the most common pediatric HAI pathogen, both in the general ward and intensive care unit at the CAUH. Further research on the epidemiology and pathogenesis of HAIs is necessary and prevention measures should be implemented to prevent HAIs in children.
Acinetobacter baumannii
;
Child
;
Child, Hospitalized
;
Delivery of Health Care
;
Escherichia coli
;
Health Care Costs
;
Hospitalization
;
Humans
;
Imipenem
;
Intensive Care Units
;
Methicillin Resistance
;
Methicillin-Resistant Staphylococcus aureus
;
Microbial Sensitivity Tests
;
Patient Safety
;
Patients' Rooms
;
Pneumonia
;
Prevalence
;
Pseudomonas aeruginosa
;
Retrospective Studies
;
Staphylococcus aureus
;
Urinary Tract Infections
6.Effect of Spinal Decompression Therapy Compared with Intermittent Mechanical Traction in Lumbosacral Disc Herniation.
Hee Sang KIM ; Dong Hwan YUN ; Ki Yun HUH
Journal of the Korean Academy of Rehabilitation Medicine 2008;32(3):319-323
OBJECTIVE: To compare the effects of intermittent mechanical traction with spinal decompression therapy (SDT), using the newly introduced device DRX 3000(R), in patients suffering from low back pain associated with lumbosacral disc herniation documented on MRI. METHOD: Thirty-five patients with low back pain with or without lower extremity radiating pain were prospectively enrolled in this study. They were all diagnosed with lumbosacral disc herniation according to physical examinations and MRI. Patients over age 60 years or those with previous spinal surgery, spondylolisthesis, severe osteoporosis, rheumatic diseases, hypertension, and other serious medical problems were excluded. Patients were randomly assigned to intermittent mechanical traction group (15 patients) or SDT group (20 patients) and compared visual analog pain scale (VAS) pre- and post-treatment. RESULTS: There was a significant improvement in VAS in SDT group compared to intermittent mechanical traction group. The mean reduction in VAS for intermittent mechanical traction group equaled 1.93+/-0.83 (from 6.4+/-1.28 to 4.5+/-1.22) while the mean reduction in VAS in SDT group equaled 4.35+/-2.21 (from 6.9+/-1.86 to 2.6+/-1.43) (p=0.0006). CONCLUSION: Spinal decompression therapy can be used as an effective treatment for discogenic low back pain without serious complications.
Decompression
;
Humans
;
Hypertension
;
Low Back Pain
;
Lower Extremity
;
Osteoporosis
;
Pain Measurement
;
Physical Examination
;
Prospective Studies
;
Rheumatic Diseases
;
Spondylolisthesis
;
Stress, Psychological
;
Traction
7.Change of volume of isoflow in pneumoconiosis patients with small opacity.
Sang Yong OH ; Jee Won KIM ; Chang Young JUNG ; Kyung Ah KIM ; Im Goung YUN
Tuberculosis and Respiratory Diseases 1993;40(5):540-547
No abstract available.
Humans
;
Pneumoconiosis*
8.Localized Primary Thymic Amyloidosis Presenting as a Mediastinal Mass: A Case Report.
Sang Yun HA ; Jae Jun LEE ; Heejung PARK ; Joungho HAN ; Hong Kwan KIM ; Kyung Soo LEE
Korean Journal of Pathology 2011;45(Suppl 1):S41-S44
We herein describe a case of a 55-year-old healthy woman with localized primary thymic amyloidosis presented as a mediastinal mass, found incidentally by chest radiography. Computed tomography revealed a 4.1 cm soft tissue lesion with nodular calcification in the left anterior mediastinum. The resected specimen was a well-defined lobulating mass with calcification. Microscopically, the mass was consisted of amorphous eosinophilc hyalinized substances involving the thymus and intrathymic lymph nodes. These eosinophilic substances showed apple-green bi-refringence under polarized light after staining with Congo red. In immunohistochemical study, they were positive for kappa and lambda light chains and negative for amyloid A. There was no evidence of systemic amyloidosis in clinical investigations. A final diagnosis of localized primary thymic amyloidosis was made.
Amyloid
;
Amyloidosis
;
Congo Red
;
Eosinophils
;
Female
;
Humans
;
Hyalin
;
Light
;
Lymph Nodes
;
Mediastinum
;
Middle Aged
;
Thorax
;
Thymoma
;
Thymus Gland
9.Gastrointestinal Cytomegalovirus Infection: A clinicopathologic analysis of 8 cases.
Yun Kyung KANG ; Sang Yong SONG ; Woo Ho KIM ; Yong Il KIM
Korean Journal of Pathology 1994;28(1):22-29
We analysed 8 cases of gastrointestinal cytomegalovirus(CMV) infection including one autopsy, three surgically resected and four endoscopic biopsy cases. Involved sites were colon in four,stomach in three and small intestine in one. Three of them were associated with immu-nosuppressed condition but others had no clinical evidence of immune deficiency. Multiple aphthous mucosal ulceration was a common presentation, but one revealed a mucosal ulcer with segmental narrowing and thickening of wall. Microscopically, six showed cytomegalic inclusions in endothelial cells and fibroblasts, one in mucosal epithelial cells and the remaining one in both endothelial cells and mucosal epithelial cells. Immunohistochemical staining using monoclonal antibody against CMV confirmed postive result in seven cases. Serum IgM anti-CMV antibody was elevated in one case. We conclude that gastrointestinal CMV infection is currently not a rare condition and frequently associated with non-immunosuppressed condition, and thus a thorough histologic examination is required especially in the gastrointestinal ulcerative lesion. Once cytomegalic inclusion is suspected, immunohistochemical identification of CMV seems essential for specific diagnosis.
Biopsy
10.Determination of DNA-DNA Hybridization Condition for Rapid Identification of Mycobacterium Species.
Yun Sop CHONG ; Sang Nae CHO ; Kyung Won LEE ; Hong Seok PARK
Journal of the Korean Society for Microbiology 1999;34(2):137-145
Rapid identification of Mycobacterium spp. isolated from patients is important with increased isolation of mycobacteria other than tubercle bacilli (MOTT). DNA-DNA hybridization with streptavidin-peroxidase and tetramethylbenzidine (TMB) color reaction method was recognized as a useful tool for identification of various species of mycobacteria. In this study, optimum condition of the test was determined. The optimal concentrations of tetramethylbenzidine dihydrochloride and hydrogen peroxide for streptavidin-horseradish peroxidase were 0.3-0.6 ug/ ml and 0.16 mM, respectively. The TMB stock solution was stable when prepared in methanol and the dilution of TBM stock solution in 10 mM sodium citrate-10 mM EDTA solution (pH 5.0) gave highest peroxidase-TMB activity. The suitable composition of hybridization solution consisted of 2 x SSC, 10% dextran sulfate, 50 ug/ml salmon DNA, 5 x Denhardt's solution, and 50% formamide. The 5-minute heating at 100C of test DNA prior to photobiotin labeling significantly increased the reaction. In conclusion, DNA-DNA hybridization method with streptavidin-peroxidase and TMB color reaction method may be useful for rapid identification of Mycobacterium spp. isolated from patients.
Dextran Sulfate
;
DNA
;
Edetic Acid
;
Heating
;
Hot Temperature
;
Humans
;
Hydrogen Peroxide
;
Methanol
;
Mycobacterium*
;
Peroxidase
;
Salmon
;
Sodium