1.A Case of Treatment of Acute Occlusion Complicating Percutaneous Transluminal Coronary Angioplasty.
Yeun Sun KIM ; Jin Iee CHUNG ; Bo In CHUNG ; Jae Woong CHOI ; In Seok CHOI ; Seung Woon AHN ; Eak Kyun SHIN
Korean Circulation Journal 1991;21(5):932-939
Management of unstable angina has evolved progressively. Although coronary angioplasty has recently shown to be relatively safe and effective treatment strategy for unstable angina, aute occlusion due to intracoronary thrombus accumulation during or immediately after coronary angioplasty remains to be one of the most common serious complication of this procedure. Intracoronary urokinase has been used to treat flow-limiting intracoronary thrombus accumulation that complicated initial successful percutaneous transluminal coronary angioplasty(PTCA) in unstable angina patient, which made the patient stablilzed. Thus in patient with flow-limiting intracoronary thrombus accumulation complicating PTCA, intracoronary urokinase proved to be highly effective in restoring vessel patency and preventing acute myocardial infarction. We report a case of successful revascularization with intracoronary infusion of urokinase in patient with intracoronary thrombus accumulation that complicated PTCA.
Angina, Unstable
;
Angioplasty
;
Angioplasty, Balloon, Coronary*
;
Humans
;
Myocardial Infarction
;
Thrombosis
;
Urokinase-Type Plasminogen Activator
2.Comparison of Direct-labeling Method of Antibody with 99mTc and 188Re.
Chang Woon CHOI ; Sang Moo LIM ; Kwang Sun WOO ; Wee Sup CHUNG ; Tae Hyun CHOI ; Soo Jeong LIM
Korean Journal of Nuclear Medicine 1999;33(1):84-93
PURPOSE: We investigated the direct labeling method of antibody with 99mTc and 188Re and examined the stability and function of these labeled compounds in in vitro and in vivo. MATERIALS AND METHODS: Disulfide bond of nonspecific human IgG was reduced to -SH group by 2-mercaptoethanol. Stannous ion was used to reduce 99mTc and 188Re. The stability of 99mTc-IgG and 188Re-IgG was estimated upto 24 hrs. Biodistribution was evaluated in abscess bearing rats at 4 and 24 hr post-injection of 99mTc or 188Re labeled IgG. RESULTS: The number of -SH group per reduced IgG molecule was 2.34. The labeling yield of 99mTc-IgG and 188Re-IgG were 90% and 95%, respectively. The stability of 99mTc-IgG at 1, 4, 6 and 24 hr was 91%, 83%, 78%, 7% and that of 188Re-IgG, high uptake was found on kidney, blood, stomach and abscess (9.42+/-0.68, 1.43+/-0.24, 0.86+/-0.18, 0.72+/-0.10 %ID/g, respectively). The uptakes at 24 hr were kidney, abscess, stomach, and blood in descending order. In case of 188Re-IgG, high uptake at 4 hr post injection appeared on kidney, blood, abscess and stomach (3.92+/-0.62, 1.32+/-0.08, 0.88+/-0.01, 0.26+/-0.06, respectively). The upatkes at 24 hr were kidney, abscess, blood abd stomach in descending order. The abscess to blood uptake ratio of 99mTc-IgG was 0.5 at 4 hr and 2.02 at 24 hr and that of 188Re-IgG was 0.67 and 1.29. CONCLUSION: 99mTc-IgG and 188Re-IgG and 188Re-IgG canbe labeled efficiently with direct labeling method. However, 99mTc-IgG and 188Re-IgG, labeled with direct method, was unstable. Further study in needed to enhance the stability of the antibody labeling.
Abscess
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Animals
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Humans
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Immunoglobulin G
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Kidney
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Mercaptoethanol
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Rats
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Stomach
3.Erratum: Correction of Prevalence of Falls by Sex in Article 'Risk Factors for Falls in Older Korean Adults: The 2011 Community Health Survey'.
Eun Jin CHOI ; Sun A KIM ; Nu Ri KIM ; Jung Ae RHEE ; Yong Woon YUN ; Min Ho SHIN
Journal of Korean Medical Science 2015;30(1):117-117
We made a mistake in our recently published article.
4.Inflammatory Myofibroblastic Tumor of the Breast: A Case Report.
Woon Ju PARK ; Bo Bae CHOI ; Kwang Sun SUH
Journal of the Korean Society of Medical Ultrasound 2010;29(4):297-301
An inflammatory myofibroblastic tumor is an uncommon type of tumor composed of spindle-shaped myofibroblast admixed with mature plasma and inflammatory cells. It is most common in the lungs and in various organs; however, a few cases of inflammatory myofibroblastic tumor of the breast have been reported in the literature. To date, there are no typical radiologic findings but an ill-defined marginated mass which was a suspicious malignancy has been reported in the literature. Here, we describe the mammographic and ultrasonographic findings of a case of an inflammatory myofibroblastic tumor of the breast with a spiculated margin which was strongly suspect as being a malignancy in a 36-year-old woman.
Adult
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Breast
;
Breast Neoplasms
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Female
;
Granuloma, Plasma Cell
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Humans
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Lung
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Mammography
;
Myofibroblasts
;
Plasma
5.Two Cases of Epidermolysis Bullosa Acquisita with Atypical Distribution of Eruptions.
Min Jung KANG ; Yoo Won CHOI ; Hae Young CHOI ; Ki Bum MYUNG ; Sun Hee SOUNG ; Woon Sup HAN
Korean Journal of Dermatology 2000;38(1):106-110
We herein report two patients with epidermolysis bullosa acquisita(EBA), who had showed the atypical clinical features. A 25-year-old male presented with multiple pruritic vesicles, erosion and crusts which occurred more severely on the face than any other sites of the skin and healed with atrophic scar formation. Histopathologically, there was a subepidermal neutrophilic blister with moderate perivascular lymphohistiocytic infiltrates in the dermis, and the diagnosis of EBA was confirmed by means of direct immunofluorescence and salt-split direct immunofluorescence test performed on the perilesional skin. The other patient was a 24-year-old female who had had multiple painful ulcerative lesions on the oral mucosa for 4 months. After then, vesicles and bullae developed to progressively generalize to the anterior neck, chest and lower leg. Histolopathologic examination of peribullous skin showed a subepidermal bulla with neutrophils and eosinophils. The salt-split skin direct immunofluence test showed IgG and IgM binding to the dermal side only. We diagnosed this patient as nonscarring inflammatory EBA. Both patients were treated with prednisolone, colchicine, and dapsone resulting in clinical improvement, but their skin lesions recurred several months after discontinuing medication.
Adult
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Blister
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Cicatrix
;
Colchicine
;
Dapsone
;
Dermis
;
Diagnosis
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Eosinophils
;
Epidermolysis Bullosa Acquisita*
;
Epidermolysis Bullosa*
;
Female
;
Fluorescent Antibody Technique, Direct
;
Humans
;
Immunoglobulin G
;
Immunoglobulin M
;
Leg
;
Male
;
Mouth Mucosa
;
Neck
;
Neutrophils
;
Prednisolone
;
Skin
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Thorax
;
Ulcer
;
Young Adult
6.Studies on Scintillation Proximity Assay for the mesurement of alpha - hCG.
Tae Hyun CHOI ; Chang Woon CHOI ; Sang Moo LIM ; Wee Sup CHUNG ; Soo Jeong LIM ; Su Jin LEE ; Tae Sup LEE ; Ok Doo AWH ; Kwang Sun WOO
Korean Journal of Nuclear Medicine 2002;36(2):133-139
No abstract available.
7.Transmission of Toxocara canis via Ingestion of Raw Cow Liver: A Cross-Sectional Study in Healthy Adults.
Dongil CHOI ; Jae Hoon LIM ; Dong Chull CHOI ; Kyung Soo LEE ; Seung Woon PAIK ; Sun Hee KIM ; Yoon Ho CHOI ; Sun HUH
The Korean Journal of Parasitology 2012;50(1):23-27
The aim of this study is to ascertain the relationship between ingestion of raw cow liver and Toxocara canis infection. A total of 150 apparently healthy adults were divided into 2 groups; 1 group consisted of 86 adults with positive results of Toxocara ELISA, and the other group of 64 adults with negative results. One researcher collected the history of ingestion of raw cow liver within 1 year and recent history of keeping dogs. Among 86 seropositive adults for T. canis, 68 (79.1%) had a recent history of ingestion of raw cow liver. Multivariate statistical analysis showed that a recent ingestion of raw cow liver and keeping dogs were related to an increased risk of toxocariasis (odds ratios, 4.4 and 3.7; and 95% confidence intervals, 1.9-10.2 and 1.2-11.6, respectively). A recent history of ingestion of raw cow liver and keeping dogs was significantly associated with toxocariasis.
Adult
;
Aged
;
Animals
;
Cattle
;
Cross-Sectional Studies
;
Eating
;
Female
;
Humans
;
Liver/*parasitology
;
Male
;
Middle Aged
;
Toxocara canis/isolation & purification/*physiology
;
Toxocariasis/parasitology/*physiopathology/*transmission
8.In Vivo Image and Biodistribution of 123I-15-(p-iodophenyl)-3-R , S - methylpentadecanoic acid ( BMIPP ) in Liposarcoma Bearing Nude Mice.
Chang Woon CHOI ; Sang Moo LIM ; Tae Sup LEE ; Yong Sup SUH ; Kwang Sun WOO ; Wee Sup CHUNG ; Soo Jung LIM ; Ok Doo AWH
Korean Journal of Nuclear Medicine 2001;35(5):324-333
No abstract available.
Animals
;
Liposarcoma*
;
Mice
;
Mice, Nude*
9.Prevention of chronic graft-versus-host disease by stimulation with glucocorticoid-induced TNF receptor.
Juyang KIM ; Woon Sun CHOI ; Hye Jeong KIM ; Byungsuk KWON
Experimental & Molecular Medicine 2006;38(1):94-99
GITR (glucocorticoid-induced TNF receptor) is a recently identified member of the TNF receptor superfamily. The receptor is preferentially expressed on CD4+CD25+ regulatory T cells and GITR signals break the suppressive activity of the subset. In this study, we wanted to reveal the in vivo function of GITR in chronic graft-versus-host disease (cGVHD), a lupus-like autoimmune disease. A single injection of anti-GITR monoclonal antibody (DTA-1) was effective in blocking the progression of cGVHD in the parent-into-F1 model. Treatment of DTA-1 significantly decreased levels of IgG1 anti-DNA autoantibody, inhibited glomerulonephritis, and increased survival. The DTA-1-mediated inhibition of autoantibody production correlated with deletion of B cells and could occur independently of CD4+CD25+ regulatory T cells. Our results indicate that anti-GITR monoclonal antibody may be used as a potential immunotherapeutic agent for preventing cGVHD.
Animals
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Antibodies, Monoclonal/therapeutic use
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B-Lymphocytes/immunology
;
CD4-Positive T-Lymphocytes/drug effects/immunology/transplantation
;
Comparative Study
;
Enzyme-Linked Immunosorbent Assay
;
Female
;
Flow Cytometry
;
Fluorescein-5-isothiocyanate
;
Fluorescent Antibody Technique, Indirect
;
Fluorescent Dyes
;
Glucocorticoids/*pharmacology
;
Graft vs Host Disease/*prevention & control
;
Mice
;
Mice, Inbred DBA
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Mice, Inbred Strains
;
Microscopy, Confocal
;
Receptors, Tumor Necrosis Factor/*immunology
;
Research Support, Non-U.S. Gov't
;
Transplantation, Homologous
10.Effect of Patient Safety Education in Surgical Clerkship to Develop Competencies for Managing and Preventing Medical Errors.
HyeRin ROH ; Kuhn Uk LEE ; Yoon Seong LEE ; Ock Joo KIM ; Sun Whe KIM ; Jae Woon CHOI
Korean Journal of Medical Education 2010;22(4):303-311
PURPOSE: The aims of this study were to define the necessity and effectiveness of patient safety education during surgical clerkship to develop competency for managing and preventing medical errors. METHODS: Fifty 3rd-year students participated in the patient safety education program during a 4-week surgical clerkship. The students were divided into 4 groups: control group, pretest-only group, education-only group, and pretest and education group. Students were assessed using short essays and an oral exam for reasoning skills, clinical performance exams for patient education and communication skills, and multisource feedback and direct observation of error reporting for real-world problem-solving skills. The results were analyzed with SPSS 14.0K. The reliability (Cronbach alpha) of the entire assessment was 0.893. RESULTS: There was no difference in scores between early and late clerkship groups. Reasoning skills were improved by the pretest. Reasoning, patient education, and error reporting skills were much more developed by patient safety education. Real-world error identification, reporting, and communication did not change after the 4-week course. CONCLUSIONS: Patient safety education during surgical clerkship is necessary and effective. Error prevention and competency management in the real world should developed.
Clinical Clerkship
;
Clinical Competence
;
Humans
;
Medical Errors
;
Patient Education as Topic
;
Patient Safety
;
Safety Management