1.Cosed, semiclosed, open intramedullary nailing in segmental fractures of fmoral shaft.
Seung Ho YUNE ; Kwang Jin RHEE ; Deuk Su HWANG ; Ki Yong BYUN ; Jun Young YANG
The Journal of the Korean Orthopaedic Association 1993;28(5):1684-1690
No abstract available.
Fracture Fixation, Intramedullary*
2.Development of Effective Cryopreservation Method for Mouse Oocytes.
Su Jin CHOI ; Soo Kyung KIM ; Ji Sun KIM ; Jae Won CHO ; Jin Hyun JUN ; Hye Kyung BYUN
Korean Journal of Fertility and Sterility 2004;31(1):75-81
OBJECTIVE: The purpose of this study was to evaluate the efficacy and effect of various cryopreservation method on the survival and the cytoskeletal stability of metaphase II mouse oocyte. METHODS: Mouse ovulated oocytes were collected and cryopreserved by a modified slow-freezing method with 1.5 M 1,2-propanediol (PrOH)+0.1 M sucrose or by vitrification using cryo loop and EM grid with 40% ethylene glycol+0.6 M sucrose. Four hours after thawing, intact oocytes were fixed and stained with fluorescein isothiocyanate (FITC)-conjugated monoclonal anti-beta-tubulin antibody to visualize spindle and propidium iodide (PI) to visualize chromosome. Spindle morphology was classified as follows: normal (barrel-shaped), slightly and absolute abnormal (multipolar or absent). RESULTS: Survival rate of the frozen-thawed oocytes in vitrification group was significantly higher than that of slow-freezing group (62.7% vs. 24.4%, p<0.01). Vitrification with cryo loop showed significantly higher survival rate than that with EM grid (67.7% vs. 53.5%, p<0.05). On the other hand, proportion of normal spindle and chromosome configurations of the frozen-thawed oocytes between two vitrification group was not significantly different. CONCLUSION: For mouse ovulated oocytes, vitrification with cryo loop may be a preferable procedure compared to slow-freezing method. Further study should be needed to investigate developmental competency of frozen-thawed mouse oocytes.
Animals
;
Cryopreservation*
;
Fluorescein
;
Hand
;
Metaphase
;
Mice*
;
Oocytes*
;
Propidium
;
Propylene Glycol
;
Sucrose
;
Survival Rate
;
Vitrification
3.Associated Factors of Job Satisfaction on Part-time Work of the Mentally Disabled.
Seong Sook JUN ; Mi Young KIM ; Su Jung HA ; Eun Kyung BYUN
Korean Journal of Occupational Health Nursing 2012;21(3):221-228
PURPOSE: The purpose of this study was to identify the degree of satisfaction of part-time work of the mentally disabled and the factors affecting their job satisfaction. METHODS: The subjects of this study were 106 part-time workers with mental illness in the city of B and Y. The data were collected from February 1, 2012 to May 30, 2012 using self-report questionnaires including the measurement scales of job satisfaction, family support, work volition and the degree of satisfaction with work environment. The data were analyzed using t-test, ANOVA, Pearson correlation coefficients, multiple regression with the SPSS/WIN 18.0 program. RESULTS: The mean of score for job satisfaction was 61.8+/-13.84. Job satisfaction was highly related to family support, work environment and work volition. The associated factor of the subjects job satisfaction were family support, work environment, work volition, and the period of employment. The combination of these four factors showed an explanation for job satisfaction at the rate of 80.2%. CONCLUSION: The results imply that job satisfaction needs to be increased for the job continuity of employees with mental illness. In addition to this, work environment, work volition and family support should first be improved for the increase of job satisfaction.
Employment
;
Humans
;
Job Satisfaction
;
Mentally Disabled Persons
;
Surveys and Questionnaires
;
Rehabilitation, Vocational
;
Volition
;
Weights and Measures
4.Development of the Korean Version of the Social Adjustment Scale in the Schizophrenics: A Study on the Reliability and Validity.
Chul Kwon KIM ; Ji Min SEO ; Sang Su KIM ; Jin Seok CHO ; Jun Sun HA ; Jeong Ok KIM ; Won Tan BYUN
Journal of Korean Neuropsychiatric Association 1999;38(6):1351-1364
OBJECTIVES: The purpose of this study was to develop the Korean version of the Social Adjustment Scale II-Revised Version (KSAS II-RV) in the schizophrenics. METHODS: KSAS II-RV was administered to 67 schizophrenic patients and 78 matched normal controls for examining the reliability and validity. RESULTS: Data analysis showed statistically significant reliabilities and validities of KSAS II-RV. The test-retest reliability, inter-rater reliability, and internal consistency for total scores of KSAS II-RV were 0.85, 0.89. and 0.87, respectively. Evidence for discriminant validity of KSAS II-RV comes from the results that the mean scores of schizophrenic patients were significantly high than those of normal controls. Construct validity was assessed by calculating the 10 inter-subareas correlations of the KSAS II-RV, and all except the sexual adjustment area were statistically significant. Significant correlations between the global area scores of KSAS II-RV and those of Global Assessment of Functioning Scale lend support for the concurrent validity of this instrument indirectly. CONCLUSION: KSAS II-RV was found to be a valid and reliable instrument which can be used to evaluate the degree of social adjustment in the schizophrenic patients.
Humans
;
Reproducibility of Results*
;
Schizophrenia
;
Social Adjustment*
;
Statistics as Topic
5.The Health Status and Management of Migrant Workers in Cheonan:A Comparison Study With Korean Citizens
Sungyeon KIM ; Dong Jun LEE ; Seung Hyeon KIM ; Min Su BYUN ; Young Sun YUN ; Nam Kyu LIM
Journal of Korean Medical Science 2023;38(46):e398-
Migrant workers face challenging working conditions, resulting in physical and mental vulnerability. The objective is to identify their health vulnerabilities and ensure their right to health. Health records of 163 migrant workers (113 males and 50 females) (Group A) and 163 Korean citizens (Group B) visiting our institution were analyzed from August 2021 to July 2022. Both groups underwent urine analysis, chest radiography, and various blood tests. Statistical analysis using independent t-tests and χ2 tests was performed. Group A had a significantly higher rate of hepatitis B virus surface antigen-positive patients, lower vaccination rates for hepatitis B, and poorer nutritional status compared to Group B. Group B generally exhibited higher levels of albumin, glucose, total cholesterol, and thyroidstimulating hormone. There were significant quantitative differences in multiple blood cell and hemoglobin measurements between the two groups. These findings emphasize the need for policy support and public awareness to protect the health rights of migrant workers.
6.Differential Effect of Light Emitting Diode Light on Electroencephalographic Oscillations in Young and Old Healthy Subjects
Jun Sang SUNWOO ; Sanghun LEE ; Kwang Su CHA ; Tae Joon KIM ; Jung Ick BYUN ; Ki Young JUNG
Journal of Sleep Medicine 2017;14(2):61-69
OBJECTIVES: To investigate brain oscillatory characteristics according to brightness and color temperature of light emitting diode (LED) light in young and elderly subjects. METHODS: We analyzed 22 young (age, 29.0±5.2 years) and 23 elderly (age, 64.8±4.5 years) healthy subjects. A LED light source was used with a combination of two color temperature (6,500 K vs. 3,000 K) and two brightness (700 lx vs. 300 lx) conditions. Participants were exposed to each light condition in relaxed wakefulness. Then, we analyzed power spectral density and functional connectivity from eye-open electroencephalography. RESULTS: A main effect of brightness on delta (p=0.044) and theta (p=0.038) power was significant in the elderly subjects. Bright light enhanced delta and theta power in the frontal region. By contrast, power spectral density of young subjects was affected by color temperature; high color temperature significantly increased beta-band power of the central region (p=0.034). Regarding functional connectivity, a significant effect of color temperature was observed in delta (p=0.006) and beta (p=0.046) frequencies. High color temperature light enhanced beta connectivity of young subjects (p=0.007), while not affecting that of elderly subjects (p=0.979). CONCLUSIONS: The present study demonstrated that spectral power and functional connectivity as well as subjective feelings are affected by the brightness and color temperature of LED light. These results might help us to understand the neurophysiological effects of light and identify the optimal indoor lighting conditions for an individual's environment.
Aged
;
Brain
;
Electroencephalography
;
Healthy Volunteers
;
Humans
;
Wakefulness
7.A Case of Endobronchial Lipoma causing left lung collapse.
Sang Su CHUNG ; Hyung Jung KIM ; Ki Hyun BYUN ; Hong Su PARK ; Jong Won SONG ; Jun Sik CHO ; Kwang Ha YOO ; Chul Min AHN ; Sung Kyu KIM ; Won Young LEE
Korean Journal of Medicine 1998;55(3):415-419
Endobronchial lipoma is a rare, benign neoplasm of the large bronchi, which makes up about 0.1 percent of all lung tumors. It can produce irreversible parenchymal lung damage or bronchiectasis if diagnosis and treatment are delayed. The treatment of endobronchial lipoma is early removal and surgical procedures depend on the status of distal parenchymal lung damage. We experienced a case of endobronchial lipoma in 53 year-old female patient, which caused total collapse of left lung and save left lung by enucleation of tumor via bronchotomy.
Bronchi
;
Bronchiectasis
;
Diagnosis
;
Female
;
Humans
;
Lipoma*
;
Lung*
;
Middle Aged
;
Pulmonary Atelectasis*
8.A Case of Cholangiocarcinoma with Brain and Leptomeningeal Carcinomatosis.
Dae Hyun BACK ; Ki Young YANG ; Ye Rim LEE ; Su Yeon CHO ; Kyung Ah LIM ; Jun Su BYUN ; Sun Hoo PARK
Korean Journal of Medicine 2012;83(6):771-774
Cholangiocarcinoma is a malignant disease originating from the epithelium of the biliary tract, and its prognosis is dismal due to distant metastasis in its early stages. The most common metastatic sites are the intra-abdominal organs, lymph nodes, and lungs. A patient was diagnosed with intrahepatic cholangiocarcinoma and underwent surgical resection. During the follow-up period, metastases were detected at the remnant liver and both lung fields. Eleven months after resection, the patient complained of severe headache. An approximately 5-cm cystic mass was found at the left occipital lobe of the cerebrum, and metastatic malignant cells were present on cerebrospinal fluid cytology. The patient underwent whole-brain radiotherapy. We herein report a rare case of cholangiocarcinoma with cystic brain metastasis together with a review of the relevant literature.
Biliary Tract
;
Brain
;
Cerebrum
;
Cholangiocarcinoma
;
Epithelium
;
Follow-Up Studies
;
Headache
;
Humans
;
Liver
;
Liver Neoplasms
;
Lung
;
Lymph Nodes
;
Meningeal Carcinomatosis
;
Neoplasm Metastasis
;
Occipital Lobe
;
Prognosis
9.A Case of Acute Myocardial Infarction with the Anomalous Origin of the Right Coronary Artery from the Ascending Aorta above the Left Sinus of Valsalva and Left Coronary Artery from the Posterior Sinus of Valsalva.
Jung Jin LEE ; Dae Hyeok KIM ; Sung Su BYUN ; Woong Gil CHOI ; Chan Woo LEE ; Seung Min YI ; Jun KWAN ; Keum Soo PARK ; Woo Hyung LEE
Yonsei Medical Journal 2009;50(1):164-168
Coronary anomalies are rare angiographic findings. Moreover, there are few reports of cases of an anomalous origin of the right coronary artery from the left sinus of Valsalva and of the left coronary artery from the posterior sinus of Valsalva. Here, we report a case with an anomalous origin of the right coronary artery from the ascending aorta above the left sinus of Valsalva and the left coronary artery from the posterior sinus of Valsalva. This was observed in a patient who was treated for a myocardial infarction of the inferior wall caused by a thrombus in the proximal right coronary artery. The patient was treated successfully with the implantation of a stent in the anomalous origin of the right coronary artery using a 6Fr Amplatz left 1 catheter.
Angioplasty, Transluminal, Percutaneous Coronary
;
Aorta/*abnormalities
;
Aortography
;
*Coronary Angiography
;
Coronary Vessel Anomalies/*radiography/therapy
;
Humans
;
Male
;
Middle Aged
;
Myocardial Infarction/*radiography/therapy
;
Sinus of Valsalva/*abnormalities/radiography
;
Stents
;
Tomography, X-Ray Computed
10.A Case of Scleroderma-like Cutaneous Lesions Induced by Docetaxel in a Patient with Breast Cancer.
Jun Su BYUN ; Seung Hwa KANG ; Min Jae LEE ; So Yeon KIM ; Hyung Gyu CHOI ; Hyo Rak LEE
Journal of Rheumatic Diseases 2013;20(5):323-327
Docetaxel, an anti-microtubule agent, has been reported to show cytotoxic effects in solid tumors. Its toxicities also include neutropenia, alopecia, skin reaction, and fluid retention. In this study, we report on a case of a 57-year-old Korean female who presented with rapidly progressive scleroderma-like cutaneous changes in the upper and lower extremities after administration of docetaxel. Results of the following tests were normal or negative: full blood count, serum urea, creatinine, electrolytes, liver function test, thyroid function test, rheumatoid factor, anti-nuclear antibody, and anti-topoisomerase antibody. No structural abnormalities were noted on esophagogastroduodenoscopy, chest computed tomography, and Doppler ultrasonography. A biopsy of skin from the left calf showed dermal sclerosis. There was no other explanation for the lesion, except a scleroderma-like cutaneous change induced by docetaxel in this Korean female undergoing treatment for breast cancer.
Alopecia
;
Biopsy
;
Breast Neoplasms*
;
Breast*
;
Creatinine
;
Electrolytes
;
Endoscopy, Digestive System
;
Female
;
Humans
;
Liver Function Tests
;
Lower Extremity
;
Middle Aged
;
Neutropenia
;
Rheumatoid Factor
;
Sclerosis
;
Skin
;
Taxoids
;
Thorax
;
Thyroid Function Tests
;
Ultrasonography, Doppler
;
Urea