A survey was performed from April 1978 to Oct. 1978, on the high blood pressure of workers employed at industries in Busan area in order to seek for the environmental factors on blood pressure. The number of workers surveyed in the manufacturing industries occupied 72.4 percent of the total. By the age group of all workers, 39.9 percent belonged to the 20-20 year group. For the age distribution and sex of the workers, the highest frequency was found in the 20-29 year group in both sexes and was 36.8% and 46.1% in male and female, respectively. The prevalence rate of hypertension among the workers was 15.9. The industries showing the highest prevalence rate equivalent to wholesale, retail trades, restaurants, and hotels. This survey presented a tendency of increasing prevalence rate as the age increases.
Age Distribution ; Blood Pressure ; Busan* ; Female ; Humans ; Hypertension* ; Male ; Prevalence ; Restaurants

No abstract available.
Animals ; Epididymis* ; Male ; Mice* ; Muscle Cells*

No abstract available.

No abstract availalbe.

One hundred and seven cases of coronary heart disease were clinically studied at Seoul National University Hospital from September 1967 to August 1971 and following results were obtained. 1. The total cases were composed with 70 cases of myocardial infarction (46 cases of acute type and 24 cases of old type), 26 cases of angina pectoris and 11 cases of coronary insufficiency. 2. The ratio of male to female was 3.5:1, and over two-thirds of patients were sixth and seventh decade in ages. 3. As the underlying diseases, hypertension was found in 38.3% of the cases, and diabetes mellitus in 10.3%. 4. Among the various symptoms, precordial pain was a most common and characteristic, which was noted in 81.1% of the cases. Pain was radiated to the left arm and/or left shoulder in 45.2% of the cases. 5. In 57.2% of the cases, serum cholesterol was more than 200mg%. 6. The ratio between anterior and posterior wall infarction on electrocardiogram was about 3.5:1. 7. Left ventricular hypertrophy was the most frequently noted finding, and sinus tachycardia, low voltage, ventricular premature beat, myocardial ischemia, and others were also observed in some cases. 8. Mortality rate was 8.4%, and the major causes of death were cardiogenic shock and ventricular fibrillation.
Angina Pectoris ; Arm ; Cardiac Complexes, Premature ; Cause of Death ; Cholesterol ; Coronary Disease* ; Diabetes Mellitus ; Electrocardiography ; Female ; Humans ; Hypertension ; Hypertrophy, Left Ventricular ; Infarction ; Male ; Mortality ; Myocardial Infarction ; Myocardial Ischemia ; Seoul ; Shock, Cardiogenic ; Shoulder ; Tachycardia, Sinus ; Ventricular Fibrillation

PURPOSE: To describe the MR findings of simple bone cyst. MATERIALS AND METHODS: We analyzed the signal intensity of the cystic contents, their margins, and internal septae, and the presence of bony fragment and pathologic fracture, and enhancement patterns in MRI of 10 pathologically confirmed simple bone cysts. RESULTS: On MR imaging, the cystic contents were of homogeneously low signal intensity on T1WI and high signal intensity on T2WI in nine cases and fluid-fluid level was seen in one case. The cystic margins were dark in all sequences. There were not any fragment in the cysts. Among the four cases with pathologic fracture, one case had fluid-fluid level and two had some areas of enhancement in the cyst or adjacent soft tissue. All nine cases with gadolinium enhancement showed thin rim enhancement along the inner margin of the cysts and internal septae. CONCLUSION: Homogeneous fluid-like signal intensity of cystic content and thin rim enhancement of margin and internal septae in MR imaging are believed to be helpful in the diagnosis of simple bone cyst.
Bone Cysts* ; Diagnosis ; Fractures, Spontaneous ; Gadolinium ; Magnetic Resonance Imaging

Acquired digital fibrokeratoma is an uncommon, solitary, round, firm, more or less hyperkeratotic projection, most frequently situated on fingers or toes but occasionally on the other locations. It arises out of a collarette of slightly raised skin and may have slight or great resemblance to a rudimentary supernumerary digit or may be mistaken for some other more ordinary condition such as an odd cutareous horn. We experienced a case of acquired digital fibrokeratoma on the right second finger in a 25-year-old male. We treated it with total excision.
Adult ; Animals ; Fingers ; Horns ; Humans ; Male ; Skin ; Toes

Penile melanosis is a new disease entity which is benign and different from pigmented nevus and acral lentiginous melanoma in situ. A 20-year-old man had hyperpigmented macules on the glans penis and penile shaft for 5 years. Clinical and histologic findings were consistent with penile melanosis and giant melanosome complexes were observed ultrastructurally.
Humans ; Male ; Melanocytes* ; Melanoma ; Melanosis* ; Melanosomes ; Nevus, Pigmented ; Penis ; Young Adult

BACKGROUND: To evaluate the usefulness of exercise echocardiography in diagnosis of coronary artery disease and to compare it with exercise ECG test. METHOD: We performed exercise test in 48 patients who suffered from angina-like chest pain, according to the modified Bruce protocol. During exercise, we observed the ECG changes and recored the images of left ventricular wall motion before and after exercise on the video tape. The echocardiogram were digitally stored and displayed in a format that allowed simultaneous analysis of rest and stress images. Newly developed left ventricular wall motion abnormalities were determined as positive findings. RESULTS: The feasibility of exercise echocardiography was 75%. The sensitivity and specificity fo exercise ECG test was 67% and 89%. The sensitivity and specificity of exercise echocardiography was 85% and 100%. The sensitivity of ECG and echocardiography was 50%(7 of 14) and 78.6%(11 of 14) in those with one-vessle disease and 84.6%(11 of 13) and 92.3%(12 fo 13) in those with multi-vessle disease. CONCLUSION: Exercise stress echocardiography was very usefull method for detecting the coronary artery disease especially in single vessle disease. And it had much higher accuracy than the stress ECG test.
Chest Pain ; Coronary Artery Disease* ; Coronary Vessels* ; Diagnosis* ; Echocardiography ; Echocardiography, Stress* ; Electrocardiography ; Exercise Test ; Humans ; Sensitivity and Specificity

A clinical observation was made on 136 cases of benign prostatic hyperplasia, admitted to the department of Urology, National Medical Center during the period from January 1970 to December 1981. The result are summarized as follows: 1. Incidence of benign prostatic hyperplasia was 6.1% to 2,226 total in-patients, 10.3% to 1,315 male in-patients and 23.3% to male in-patients 50 years old or more. 2. Majority of cases Was found in 7Ih and 8th decades (78.6%) with mean age of 68.9 years old. 3. Seventy one patients (52.2%) suffered from urinary retention prior to admission. 4. Mean interval elapsed from initial symptoms to visit was 26.8 months. 5. Method of operative treatment included 68 suprapubic prostatectomy, 10 retropubic prostatectomy and 5 T.U.R. 6. Mean weight of removed adenoma was 42.6 gm in suprapubic prostatectomy and 34.7 gm in retropubic prostatectomy. 7. Mean amount of blood transfusion was 700 ml in suprapubic prostatectomy, and 224 ml in retropubic prostatectomy. 8. Mean period of catheter drainage was 11.9 days in suprapubic prostatect0my, 13.3 days in retropubic prostatectomy and 5.4 days in T.U.R. 9. Mean duration of postoperative hospitalization was 17.8 days in suprapubic prostatectomy, 15.8 days in retropubic prostatectomy and 8 days in T.U.R. 10. Postoperative complications were delayed healing with suprapubic fistula, wound infection, prolonged bleeding 14 days or more, temporary incontinence, epididymitis, unable to void and pneumonia, in suprapubic prostatectomy and prolonged bleeding, wound infection, temporary incontinence and unable to void in retropubic prostatectomy.
Adenoma ; Blood Transfusion ; Catheters ; Drainage ; Epididymitis ; Fistula ; Hemorrhage ; Hospitalization ; Humans ; Incidence ; Male ; Middle Aged ; Pneumonia ; Postoperative Complications ; Prostatectomy ; Prostatic Hyperplasia* ; Urinary Retention ; Urology ; Wound Infection