1.Misdiagnosed Breast Cancer on Mammography Retrospective Analysis in 17 Cases.
Jeong Hyun YOO ; Hye Yooung CHOI ; Sei Hyun AHN
Journal of the Korean Radiological Society 1995;32(3):501-506
PURPOSE: Misdiagnosed breast cancer on screening mammography was retrospectively reviewed in an attempt to analyze the cause for the undiscovery and to determine findings that might have been suggested on the mammographic examination. MATERIALS AND METHODS: Of the 173 breast cancers that were pathologically proven, 17 breast cancers misdiagnosed on mammogram was retrospectively analyzed for the causes of the misinterpretation and predominant secondary findings. RESULTS: Three of the 17 were negative on mammography except for dense breast. Two patients had localized asymmetricity without visible mass. Ten patients had benign-looking mass which was well-defined (n=5), partially defined(n=2), multiple (n=l), or included benign-looking calcifications(n=2). Remaining two cases were retrospectively diagnosed as misinterpreted breast cancers. Various secondary findings such as were useful in the diagnosis of breast cancer. CONCLUSION: Meticulous observation could improve the diagnostic yield of breast cancer in mammography.
Breast Neoplasms*
;
Breast*
;
Diagnosis
;
Humans
;
Mammography*
;
Mass Screening
;
Retrospective Studies*
2.Experimental otitis media with effusion induced by lipopolysaccharides from E. coli: the effects of endotoxin to the chronically of OME.
Hak Hyun JUNG ; Jong Ouck CHOI ; Hong Kyun YOO
Korean Journal of Otolaryngology - Head and Neck Surgery 1991;34(5):879-894
No abstract available.
Lipopolysaccharides*
;
Otitis Media with Effusion*
;
Otitis Media*
;
Otitis*
4.The One-Year Prognostic Value of the Pre-Discharge ECG after the First Acute Myocardial Infarction.
Yeong Ho CHOI ; Suck Koo CHOI ; Won Sang YOO ; Hyun Je LEE
Korean Circulation Journal 1988;18(1):41-47
To assess the prognostic value of the 14 ECG variables obtained from the pre-discharge ECG, 35 patients were followed up for at least one year among the 80 patients of the acute myocardial infarction admitted at Seoul Paik Hospital from Sep. 1983 to Aug. 1986. The following results were obtained. 1) The overall in-hospital mortality rate was 20% and the mortality rate tended to decline year by year. 2) The one-year mortality and morbidity rate of the followed patients was 31.4%. 3) Among the 14 variables obtained from the pre-discharge ECG, T-negativity was the only statistically significant (p<0.05) one to predict the one-year prognosis in the patients after the first myocardial infarction, and we could not derive any meaningful datd from the analysis of the combined effects of the three ECG variables (PTF, ST depression and ST elevation).
Depression
;
Electrocardiography*
;
Hospital Mortality
;
Humans
;
Mortality
;
Myocardial Infarction*
;
Prognosis
;
Seoul
5.Expression of Claudin-1 and -4 in Benign Lesions and Invasive Ductal Carcinomas of the Breast.
Hyun Joo CHOI ; Ji Han JUNG ; Jinyoung YOO ; Seok Jin KANG ; Kyo Young LEE
Korean Journal of Pathology 2007;41(4):232-237
BACKGROUND: The claudins are a family of transmembrane proteins associated with tight junctions and they are critical for maintaining cell-to-cell adhesion in sheets of epithelial cells. However, their role in the progression of cancer remains largely unexplored. The aims of this study were to evaluate the expression patterns of claudin-1 and -4 in benign lesions and invasive ductal carcinomas (IDC) of the breast, and relationships between the expression of these markers and the clinicopathological characteristics in IDC patients. METHODS: We examined the claudin-1 and -4 protein expressions by performing immunohistochemical stainings in 54 benign lesions and 120 IDCs via the tissue microarray method. We evaluated the correlation between the expression of these markers and the clinicopathological characteristics of IDC. RESULTS: The expressions of claudin-1 (p=0.099) and -4 (p=0.000) were up-regulated in IDCs as compared with benign lesions. The claudin-1 expression correlated with the loss of estrogen receptor (p=0.036) and progesterone receptor (p=0.011). The claudin-4 expression correlated with lymph node metastasis (p=0.043), the nuclear grade (p=0.030), the histologic grade (p=0.007), and the loss of estrogen receptor (p=0.001) and progesterone receptor (p= 0.029). CONCLUSIONS: These results suggest that claudin-1 and -4 may play a significant role in the carcinogenesis of IDC of the breast and these may represent novel markers for this disease.
Breast*
;
Carcinogenesis
;
Carcinoma, Ductal*
;
Claudin-1*
;
Claudin-4
;
Claudins
;
Epithelial Cells
;
Estrogens
;
Humans
;
Immunohistochemistry
;
Lymph Nodes
;
Neoplasm Metastasis
;
Receptors, Progesterone
;
Tight Junctions
6.A Study of Case-Based Adult Advanced Cardiac Life Support(ACLS) course in Korea.
Kyu Nam PARK ; Se Min CHOI ; Seung Hyun PARK ; Eun Young YOO ; Se Kyung KIM
Journal of the Korean Society of Emergency Medicine 1999;10(2):191-197
BACKGROUND: To describe the fast experience of case-leased advanced cardiac life support(ACLC) course in Korea. METHODS: We have given case-based ACLC course to 13 nurses(6 emergency nurses, 4 coronary care unit muses, 3 professors) and 17 physicians(4 emergency physicians, 12 emergency residents, 1 intem). We performed the case-based ACLS course according to 1992 American Heart Association guidelines and recommendations for advanced cardiac life support by american ACLS instructors(1 pulmonologist, 4 critical care nurses). We performed final theoretical written test and 2 times written survey (immediate and 100th day after the course) about the course. RESULTS: On final written test, all practitioners answered at leasts 70% of the questions correctly. There was no significant difference between nurses and physicians(86.2+/-3.6 of physicians and 82.5+/-6.8 of nurses, p=0.06). 90%of participants considered that case-based advanced cardiac life support was acceptable. 100th day after the course, 93%of participants answered that ACLS course have been helpful on his/her job and also want retraining of ACLS course. 70%of participants considered that ideal ACLS training committee in Korea is the Korean Society of Emergency Medicine. CONCLUSION: Case-based ACLS course is a useful educational method far physicians and nurses in Korea. In the future, we should organize Korean resuscitation committee and then make guidelines for ACLS, and then continuously educate physicians and nurses.
Adult*
;
Advanced Cardiac Life Support
;
Alprostadil
;
American Heart Association
;
Coronary Care Units
;
Critical Care
;
Emergencies
;
Emergency Medicine
;
Humans
;
Korea*
;
Resuscitation
7.Experience of Falls and Predictors of Falls in the Elderly at Senior Citizens' Centers.
Journal of Korean Academy of Community Health Nursing 2007;18(1):14-22
PURPOSE: The purpose of this study was to investigate the experience of falls, the fear of falling and fall efficacy and identify the predictors of falls in the elderly at senior citizens' centers. METHOD: The subjects of this study were 106 elders who used senior citizens' centers in Chungcheongbuk-do, Korea. Data were collected from May to June, 2006 through a survey using a structured questionnaire. RESULT: Of the elderly sampled, 35.8% experienced falls during the last 1 year. Of falls experienced by the elderly, 53% occurred indoors, 47% outdoors, 15.8% in the bathroom or toilet. In addition, 57.8% of the elderly had injuries on the hip and waist related with falls. The fear of falling was higher in those with experience in falls than in those without. Factors affecting the elders' falls were age (OR=1.113, 95% CI=1.012-1.224), the number of chronic disease (OR=2.342, 95% CI=1.365-4.019) and the fear of falling (OR=4.279, 95% CI=1.901-9.634). The predictor of the frequency of falls was fall efficacy (R2=24.9). CONCLUSION: As a result, it is essential to develop fall prevention programs based on the fear of falling, fall efficacy, chronic diseases and medication state. And in senior citizens' centers, fall prevention safety education should be activated as a health promotion program.
Aged*
;
Chronic Disease
;
Chungcheongbuk-do
;
Education
;
Health Promotion
;
Hip
;
Humans
;
Korea
;
Surveys and Questionnaires
9.Detection of human papillomaviruses DNA in genital and respiratory tract papilloma and study on transmission of viruses usingpolymerase chain reaction(PCR).
Kyoung Chan PARK ; Seung Yong JUNG ; Yoo Shin LEE ; Young Min CHOI ; Kwang Hyun KIM
Korean Journal of Infectious Diseases 1991;23(1):1-6
No abstract available.
DNA*
;
Humans*
;
Papilloma*
;
Respiratory System*
10.Hypotensive Efficacy and Safety of Manidipine on the Patient with Essential Hypertension.
Won Sang YOO ; Young Bin JEON ; Sang Hyun PARK ; Chang Young LIM ; Suck Koo CHOI
Korean Circulation Journal 1991;21(2):350-355
Thirty patient with essential hypertension were administered Manidipine, a new calcium antagonist, 10~20mg once daily to evaluate the hypotensive efficacy and safety for 8 weeks. And the followings were the result. 1) Patients were consists of 14 male, 16 female, aged 53 in average and classified as mild in 21 and moderate in 9 patients. 2) Optimum intial dose was 10mg and 10 to 20mg were the doses recommended. 3) Blood pressure dropped after 8 weeks 24/13mmHg in average, rewarding 80% effectiveness and normalized in 87%. 4) Most frequent side reaction was facial flushing in 5 patiens followed by palpitation and dizziness, all of which did not disturb the continuation of medication. 5) Most of routine laboratory parameter were normal and unchanged between before and after the trial. 6) Overall rating of usefulness was 77%. In conclusion, Manidipine 10 to 20mg once daily regimen is well tolerated and effective in the treatment of mild to moderate essential hypertension.
Blood Pressure
;
Calcium
;
Dizziness
;
Female
;
Flushing
;
Humans
;
Hypertension*
;
Male
;
Reward