To determine the hepatitis B virus infection rate of medical school students and appropriate time for immunization with hepatitis B vaccine, 385 students in the 1st, 2nd and 3rd grades of Medical School of Kyungpook National University who had not been vaccinated and volunteered to participate in this study were tested for HBsAg, anti-HBs and anti-HBc with radioimmunoassay method (Abbortt Lab. kit). A questionnaire was administered to ask the history of transfusion, acupuncture and surgery. HBsAg positive students were retested 16 months after the initial test. Overall HBsAg positive rate was 6.8% and the age adjusted rate for male (7.2%) was higher than that for female (4.9%). Anti-HBs positive rate was 35.8% (36.1% for male, 37.9% for male) and anti-HBc positive rate was 45.5% (46.5% for male, 44.7% for femaleP. Overall hepatitis B virus (HBV) infection rats was 49.1% and the infection rate for male (50.3%) was slightly higher than that for female (46.5%). HBsAg positive rate and infection rate were increased as the grade increased but it was attributed to the age distribution of the students. HBsAg positive rate for 20 years old students was 1.7%; 21 years, 6.6%; 22 years, 6.1%; 23 years, 12.2%; and 24 years and older, 6.4%. HBV infection rate showed an increasing trend as age increased; 45.8% for 20 years, 41.5% for 21 years, 49.5% for 22 years, 55.5% for 23 years and 59.6% for 24 years and older. The age differences in HBsAg positive rates and HBV infection rates did not reach the statistical significance level of 0.05. However, these findings and similar age differences in HBsAg positive rates and HBV infection rates observed in other study suggest that there is a significant age differences. Study of the same age group in other schools and different social classes is warranted to confirm the age difference. Clarification of the reason for such differences would provide a clue to identify the major route of HBV transmission in this age group. Among 26 HBsAg positive students in the initial test, only one student was active hepatitis patient. Out of 24 students who had follow-up test after 16 months 22 students were positive for HBsAg and two students became HBsAg negative and anti-HBs positive. It is obvious that nearly one-half of the medical school students were infected with HBV before 20 years of age and the HBV infection occurs in medical school. Thus, it is recommended to test all the students for HBV infection soon after the admission to the medical school and immunize all the susceptible students with hepatitis B vaccine and give booster as they start to practice at a hospital.
Acupuncture ; Age Distribution ; Animals ; Daegu* ; Female ; Follow-Up Studies ; Gyeongsangbuk-do ; Hepatitis B Surface Antigens ; Hepatitis B Vaccines ; Hepatitis B virus* ; Hepatitis B* ; Hepatitis* ; Humans ; Immunization ; Male ; Surveys and Questionnaires ; Radioimmunoassay ; Rats ; Schools, Medical* ; Social Class ; Young Adult

BACKGROUND: Currently, the incidence of hepatitis A is on the increase in Korea. Although there is emphasis on contact precautions, the nosocomial outbreak of hepatitis A virus (HAV) in healthcare personnel has increased within endemic areas because these workers inevitably come in close contact with patients and work under suboptimal hygiene conditions. In this study, we evaluated the necessity of immunization against HAV for healthcare personnel. METHODS: We investigated the seropositivity of serum immunoglobulin G (IgG) anti-HAV antibody (Ab) in 672 healthcare personnel on the basis of their age-group, sex, and occupation in Soon Chun Hyang University Hospital and Soon Chun Hyang University Bucheon Hospital. RESULTS: The subjects were divided into 6 groups on the basis of their ages to identify differences among the various age groups in the number of cases with HAV Ab seropositivity. Significant intergroup differences were noted in this respect: 21-25 years, 2/152 (1.3%); 26-30 years, 33/245 (13.5%); 31-35 years, 70/148 (47.3%); 36-40 years, 52/79 (65.8%); >40 years, 44/48 (91.7%). CONCLUSION: The number of seropositive cases was low among young healthy personnel: low seropositivity is an emerging risk for vulnerable population. With the increase in the incidence of hepatitis A, healthcare personnel have become a risk population for hepatitis A, as are community residents. Therefore, for healthcare personnel working in hospitals, immunization against HAV should be recommended for personnel younger than 30 years, and serological testing for older personnel.
Delivery of Health Care ; Hepatitis ; Hepatitis A ; Hepatitis A Antibodies ; Hepatitis A Vaccines ; Hepatitis A virus ; Humans ; Hygiene ; Immunization ; Immunoglobulin G ; Incidence ; Korea ; Occupations ; Serologic Tests ; Vulnerable Populations

Formation of the traumatic neuroma results from abnormal nerve regeneration following a peripheral nerve injury. Numerous treatment options have been described. However, there is no one way that is completely effective in the management of these peripheral neuromas. Prevention is best. It is important to maximize nonsurgical management, including pain management and physiotherapy. At the time of surgery, definitive neuroma resection and tension-free repair or coverage will provide the least amount of subsequent nerve irritation.
Nerve Regeneration ; Neuroma* ; Pain Management ; Peripheral Nerve Injuries ; Regeneration

Mitral valvular orifice area is important for the evaluation of prognosis and treatment of patients with mitral valvular stenosis. Until recently, Gorlin's formula using cardiac catheterization has been utilized in the measurement of mitral valve area, but it is invasive and impractical to examine repeatedly. Recently 2-Dimensional echocardiography appeared to be a practical and useful substitute in measurement of valve area and also it is economical and has no risk to patients. In 31 patients with mitral valvular stenosis examined at the echocardiography room of Busan national University Hospital from March 1982 to March 1983, we measured the mitral valve area with 2-Dimensional echocardiography and evaluated its relationship with the left ventricular functions measured on M-mode echocardiogram. Among many parameters on M-mode measurements EF slope, excursion amplitude and the ratio of left atrial dimension to aortic root dimension were rather helpful for the assessment of severity of mitral valvular stenosis than other parameters. And each relationship with the valve area showed correlation coefficient of 0.60, 0.05 and -0.58, respectively.
Busan ; Cardiac Catheterization ; Cardiac Catheters ; Constriction, Pathologic* ; Echocardiography* ; Humans ; Mitral Valve* ; Prognosis ; Ventricular Function, Left

Branch retinal vein occlusion(BRVO), along with central retinal vein occlusion, is second only to diabetic retinopathy as a cause of retinal vascular disease. It has been suggested that eyes with shorter axial length have smaller lamina cribrosa and a narrower scleral canal through which the central retinal vein and artery could pass, causing physical blockage in the vein which predisposes to thrombus formation. The subsequent narrowing of the venous lumen will lead to trubulence. reduced flow, venous stasis and thrombus formation at the level of the arteriovenous crossing. This study was conducted to determine whether there was any difference between the axial lengths of eyes with BRVO and those of control eyes. The axial lengths of the eyes in the group of 37 patients with a unilateral BRVO was compared with those of eyes in the control group. The BRVO group consisted of 23 male and 14 female patients and their mean ages were 61.5+/-7.0 years(51~75years) in male and 63.7+/-7.0 years(52~76years) in female. The control group consisted of 46 male and 28 female patients and their mean ages were 62.5+/-6.5 years(50~73years) in male and 63.9+/-6.1 years(52~75years) in female. The mean axial length of eyes of the BRVO group was 23.08+/-0.57mm(21.92~24.19mm) in male and 22.71+/-0.65mm(21.08~24.00mm) in female. The mean axial length of control eyes was 23.74+/-0.73mm(22.46~25.24mm) in male and 23.18+/-0.81mm(21.62~24.76mm) in female. The difference between the mean axial length of eyes of the BRVO group and that of control eyes was statistically significant(p<0.05). In conclusion, the short axial length may play as a risk factor in the occurrence of a BRVO.
Arteries ; Diabetic Retinopathy ; Female ; Humans ; Male ; Retinal Vein Occlusion* ; Retinal Vein* ; Retinaldehyde* ; Risk Factors* ; Thrombosis ; Vascular Diseases ; Veins

Background: Fluvastatin is the first entirely synthetic 3-hydroxy-3-methylglutaryl-coenzyme A(HMG-CoA) reductase inhibitor. Clinical data indicate that this agent exhibits the proven efficacy of its class and also has some theoretical advantages in safety for long-term use because of its unique pharmacololgic property consistent with hepatoselectivity(i.e., low systemic exposure). This study is to evaluate efficacy and safety of fluvastatin in hypercholesterolemic patients in Korea. Methods: An open clinical trial with fluvastatin was conducted in 31 subjects who continued to have high blood cholesterol levels of 6.21 mmol/L(240 mg/dl) or greater after 1 month of lipid-lowering diet plus single blind placebo period. Fluvastatin was administered for 8 weeks with the initial dose of 20 mg per day and if serum cholesterol levels did not fall below 5.20 mmol/L(200 mg/dl) after 4 weeks the dose was increased to 40 mg per day for the second 4 weeks. On each visit every 4 weeks they underwent interview and laboratory tests about side effects and tolerability. Results: The mean % changes in plasma total cholesterol and LDL-cholesterol from baseline were
Cholesterol ; Creatine Kinase ; Diet ; Humans ; Hypercholesterolemia ; Korea ; Oxidoreductases ; Plasma ; Sleep Stages ; Triglycerides

BACKGROUND: An association between low serum cholesterol concentrations and depressive symtoms has ever been found in several studies. The objective of this study is to evaluate neurotic symptoms in hypocholesterolemia. METHODS: In the course of two months (from June to August, 1998), 81 subjects were selected among the people who screened in adult disease survey of one university hospital. As the control group, 80 subjects were selected from a healthy population. In the study population, we excluded people who had medical history of hypertension, diabetes mellitus, ischemic heart disease, chronic liver disease and history of any medication to lipid metabolism and other psychotic disease history. Neurotic symptoms were measured by Symptom Checklist for Minor Psychiatric Disorders (SCL-MPD) questionnaire. RESULTS: There was no difference between the distribution of age and sex in the hypocholesterolemia groups. As the level of the education and kind of employment, no significant difference between two groups. Hypocholesterolemia groups scored significantly higher than conrol group in some questionnaire of SCL-MPD. The results of depression scale (p<0.01) and anxiety, hypochondriasis scale (p<0.05) were significant. The men of hypocholesterolemia groups have significant relation to hypochondriasis scale (p<0.001) and the women to anxiety scale (p<0.05). CONCLUSION: Though in some scale of neurotic symptoms, the association between hypocholesterolemia and neurotic symptoms was found in our study. There need to be a further study on the correlation of hypocholesterolemia and neurotic symptoms.
Adult ; Anxiety ; Checklist ; Cholesterol ; Depression ; Diabetes Mellitus ; Education ; Employment ; Female ; Humans ; Hypertension ; Hypochondriasis ; Lipid Metabolism ; Liver Diseases ; Male ; Myocardial Ischemia ; Surveys and Questionnaires

No abstract available.
Autoantibodies* ; Humans*

We report 13 chromophobe renal cell carcinomas (10.8%) observed among 120 renal cell carcinomas in adults. The average age was 53 (range: 34-72) years old, and 6 were males and 7 females. The mean tumor size was 10 (range: 5-17) cm, mean nuclear grade 2.4, and mean Robson's stage was 1.9. There were two distinct histologic variants; typical variant (n=9) and eosinophilic variant (n=4). Both of them showed typical light microscopic features and positive reaction with Hale's colloidal iron and carbonic anhydrase II, a marker protein of intercalated cells of renal collecting ducts. A strong positive immunoreactivity for epithelial membrane antigen was noted in the cytoplasm in 12 of 13 tumors. Numerous microvesicles, 180~440 nm in diameter, were identified ultrastructurally. DNA aneuploidy was found in 3 out of 10 cases. Neither local recurrence nor metastasis have been identified during the following period of 4~144 (mean 48) months.
Adult ; Aneuploidy ; Carbonic Anhydrase II ; Carcinoma, Renal Cell* ; Colloids ; Cytoplasm ; DNA ; Eosinophils ; Female ; Humans ; Iron ; Male ; Mucin-1 ; Neoplasm Metastasis ; Recurrence

OBJECTIVE: The aim of this study was to investigate the genetic association of the FAT gene with schizophrenia in the Korean population, as well as analyzing the association of FAT gene with clinical variables. METHODS: Four variants within the FAT gene were investigated in 189 patients with schizophrenia and 119 healthy controls (rs2306987 A/C, rs2306990 T/C, rs2637777 G/T, and rs2304865 G/C). RESULTS: Significant association at the rs273777 with schizophrenia was observed; however, rs2306987, rs2306990, and rs2304865 were not associated with schizophrenia. Haplotype analyses revealed that the haplotype A/T/T/G was associated with a significantly protective effect. Sliding window analysis (rs2637777 G/T and rs2304865 G/C) revealed the more common T/G haplotype, included in the A/T/T/G protective combination, showed a small protective effect, in particular the effect was due to the rs273777 T variant (minor allele). CONCLUSION: The present finding suggests that FAT polymorphism may play a putative role in the susceptibility to schizophrenia in the Korean population. Further studies using a larger number of subjects should be performed to determine whether the FAT gene polymorphism may be truly involved in the development of schizophrenia.
Cadherins ; Haplotypes ; Humans ; Schizophrenia