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*
3.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.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
6.Efficacy and Safety of Nifedipine Gastrointestinal Therapeutic System(Adalat OROS) in Patients with Mild to Moderate Essential Hypertension.
Dae Hyun KIM ; Se Ick OH ; Yong Kyun KIM ; Suck Koo CHOI ; Won Sang YOO
Korean Circulation Journal 1992;22(3):488-493
BACKGROUND: This study was designed to evaluate the antihypertensive efficacy and safety of nifedipine gastrointestinal system push-pull osmotic pump formulation in patients with mild to moderate essential hypertension. METHODS: After 2 weeks placebo run-in period, nifedipine 60 mg was administered once daily for 8 weeks in thirty-two patients with mild to moderate essential hypertension. RESULTS: At the end point of treatment, sitting blood pressure decreased as much as 33/16mmHg in average and rewarded 88% of efficacy and 69% of normalization. The ambulatoy blood pressure monitoring in 10 patients also revealed 11% decrease in 24 hr mean diastolic blood pressure and 32% decrease in % elevated blood pressure. The most frequent side reactions were constipation in 7 patients and polyuria in 6 patients which were tolerated during entire trial period. There were no significant changes in biochemical parameters and hematologic data, thus making the rate of safety 91% and overall rating of usefulness was 84%. CONCLUSION: Nifedipine GITS 60 mg once daily regimen is well tolerated and effective in the treatment of mild to moderate essential hypertension.
Blood Pressure
;
Blood Pressure Monitors
;
Constipation
;
Humans
;
Hypertension*
;
Nifedipine*
;
Polyuria
;
Reward
7.Reference Values for the Ambulatory Blood Pressure in Normotensive Korean Young Men.
Young Joo SUNG ; Dae Hyun KIM ; Suck Koo CHOI ; Won Sang YOO
Korean Circulation Journal 1992;22(3):458-462
BACKGROUND: To obtain reference values for the ambulatory blood pressure, 30 normotensive Korean young males, aged 22-28 years(mean age: 25 years) were investigated. METHODS: The ambulatory blood pressure was recorded with SpaceLabs Model 90207 monitor over 24 hours at 20 minutes intervals during day-time(6 am-10pm) and at 30 minutes intervals during night-time (10 pm-6 am). RESULTS: The ambulatory blood pressure of the 30 subjects averaged 119/74mmHg over 24 hours, 122/78 mmHg during day-time and 112/68 mmHg during night-time. The upper limit of normal ambulatory blood pressure was suggested as the value of mean+/-2SD which revealed 131/84mmHg for 24 hours, 134/90 mmHg for day-time and 126/80 mmHg for night-time. CONCLUSION: Reference values for the ambulatory blood pressure, in normotensive Korean young men, were obtained by SpaceLab model 90207 monitor.
Blood Pressure*
;
Humans
;
Male
;
Reference Values*
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.An Evaluation of Sunscreen Efficacy Using Mouse Ear Swelling Reaction.
Joo Hyun CHOI ; Jai Il YOUN ; Ai Young LEE ; Jeong Aee KIM ; Yoo Shin LEE
Korean Journal of Dermatology 1990;28(4):419-424
This study was undertaken to investigate the efficacy of 5% PABA cream using mouse ear swelling reaction(ESR). Mice were exposed to 100mJ/cm of UVB, five times a week for four weeks, on the both ventral aspect of the ear, with application of 5% PABA cream on the right ear. The results were as follows : 1. The intensity of ear swelling reaction of 5% PABA protected group was reduced greater than unproteeted group after the first 3 days of UUR. 2. The intensity of ear swelling reached at peak after 1 week of the ultraviolet radiation. Thereafter it has decreased gradually the following 4 weeks. The difference of ear swelling between the two groups was the greatest after 1 week, and the sunscreening efficacy of 5% PABA cream has remained persisted for 4 weeks. 3. The number of mice which have shown severe inflarnmatory response after ultravioiet radiation was more in unprotected group than that in 5% PABA protected group. 4. Determination of mouse ESR is considered a good method for the evaluation of longterm efficacy of sunscreen preparation.
4-Aminobenzoic Acid
;
Animals
;
Ear*
;
Mice*