To get basic data for the development of health care toward the staff of a university, an evaluation study of the risk factors for the cardiovascular disease utilizing data from questionnaire and health examination performed in 1994 for 1233 staff of Chosun University and its affiliated Hospital. The results are as follows: 1. The mean values of systolic blood pressure was 122.0+/-14.7mmHg for the male and 111.8+/-12. lmmHg for the female. The mean values of diastolic blood pressure was 82. 5+/-12.0mmHg for the male and 73.7+/-10.0mmHg for the female. The mean values of serum total cholesterol was 185.6+/-33.4mg/dl for the male and 173.5+/-32.6mg/dl for the female. The mean values of body mass index(BMI) was 23. l+/-2.4kg/m2 for the male and 21.5+/-2.3kg/m2 for the female. The smoking rate of the male was 47. 6% and that of the female was 0.4%. 2. The systolic and diastolic blood pressure levels increased with age in both sexes. Under 55 years of age the mean blood pressures of the male were higher than that of the female, but the levels of both sexes at 55-64 year old group did not show any big difference. The mean values of serum total cholesterol and BMI also increased with age in both sexes. Under 45 years of age, the serum cholesterol and BMI levels of the male were higher than that of the female, but on the contrary, levels of the male were lower than that of the female at 55-64 year old groups. The mean cholestrol and BMI levels of both sexes at 45-54 year old group was similar. As the age increases, the rate of exsmoker increased and the rate of current smoker decreased among the male. 3. The additive cardiovascular risk scores were calculated considering the values of blood pressure, serum total cholesterol level and the smoking status. The distribution curve of risk scores for the male showed 39. 1% under 4 points and 60.9% above 4 points with the peak at 4 points. 61.7% of the female showed that the risk scores were under 4 points and the rest was more than 4 points with maximum 9 points. As a whole the risk scores of the female were lower than that of the male. 4. By the analysis of association between the risk score of cardiovascular disease and the subjective symptom under the stratification of age and sex, the prevalence of exertional dyspnea was significantly higher at 35-44 year male group and prevalence of dizziness was significantly higher at 45-64 year male group as the risk score of cardiovascular disease increased. Among 25 34 year and 45-64 year female group persons with lower risk score of cardiovascular disease showed higher prevalence of dizziness than persosns with higher risk score.
Blood Pressure ; Cardiovascular Diseases ; Cholesterol ; Delivery of Health Care ; Dizziness ; Dyspnea ; Female ; Humans ; Male ; Prevalence ; Risk Factors* ; Smoke ; Smoking ; Surveys and Questionnaires

PURPOSE: To correlate MR findings with histologic findings in avascular necrosis(AVN) of the femoral head. MATERIALS AND METHODS: MR imaging was performed with 8 femoral head specimens using T1- and proton density weighted coronal SE sequences, and compared with contact radiography and histologic sections. RESULTS: In each specimen, necrotic zone in the superior portion of femoral head, repair zone located inferior to the necrotic zone, and rim adjacent to normal bone marrow could be defined. Necrotic zone showed high signal intensity on both T1- and proton density- weighted images in 3 cases which were composed of necrotic bone and marrow, and low signal intensity on both sequences in 2 cases which were composed of necrotic bone marrow with amorphous cellular debris. Mixed high and low signal intensities were seen in 3 cases. The repair zone showed low signal intensity on Tl-weighted image and high signal intenisty on proton density weighted image in 5 cases which were composed of thickened trabecular bone and meSenchymal tissue and also showed intermediate signal intensity on T1 weighted image and high signal intensity on proton density weighted image in 3 cases which were composed of osteoid, chondroid and undifferentiated mesenchymal cells. Rim shown as the low signal intensity on T1 weighted image in all cases was corresponded to viable thickened trabecular bone. CONCLUSION: MR imaging would be the best modality in the diagnosis of avascular necrosis of fernoral head and when used in conjuction with degree and location of signal intensity, the prediction of histologic finding may be possible.
Bone Marrow ; Diagnosis ; Head* ; Magnetic Resonance Imaging* ; Necrosis* ; Protons ; Radiography

An impairment is defined as "a loss, loss of use, or derangement of any body part, organ system or organ function". The impairment evaluation should be performed by physicians. To determine permanent impairment associated with medical condition a standard method should be used. It is a general principle that an evaluation of permanent impairment only be performed when the physician considers the person to have reached a state of maximum medical improvement. Maximum medical improvement is considered when the person's condition has been medically stable and is unlikely to change by more than 3% of whole body impairment within the next 12 months. The physician must use the entire clinical skill and judgment to perform the proper impairment evaluation. A report of the evaluation of permanent impairment should be accurate, comprehensive and fair. The physicians are reminded that they have a duty to act in an ethical, professional and considerate manner when examining the person for the purpose of assessing the permanent impairment.
Clinical Competence ; Humans ; Judgment

PURPOSE: To analyze clinical, radiological and pathological features as well as clinical outcome after surgical treatment of patients with secondary chondrosarcoma arising from osteochondroma(tosis). MATERIALS AND METHODS: We retrospectively reviewed clinical records, radiographs, pathologic slides of 14 patients. Nine patients were male and five were female. The mean age was 34 years. The mean follow-up period was 54 months. RESULTS: All patients had a history of previous mass since childhood or puberty. Preexisted osteochondroma was single in 3 patients and multiple in 10. Remaining 1 patient had multiple osteochondromatosis with enchondromatosis. MRI clearly provided thickness of cartilage cap, which was over 2 cm except in 2 cases. Chondrosarcoma was grade 1 in all except 1 case, which was grade 2. Wide excision was performed in 10 patients, marginal excision in 3 and amputation in 1. Twelve patients were doing very well without evidence of disease. Among 3 patients with marginal excision, 1 patient had local recurrence and 1 patient died of disease. CONCLUSION: Comprehensive understanding of clinical, radiological and pathological features of secondary chondrosarcoma is warranted for accurate diagnosis. The best result can be expected with early recognition of malignant change of osteohcondroma(tosis) and wide excision.
Amputation ; Cartilage ; Chondrosarcoma ; Enchondromatosis ; Female ; Follow-Up Studies ; Humans ; Male ; Osteochondroma ; Osteochondromatosis ; Puberty ; Recurrence ; Retrospective Studies

PURPOSE: To investigate prognostic factors influencing on local recurrence, distant metastasis and event-free survival of liposarcomas. MATERIALS AND METHODS: Fifty-two patients managed for liposarcomas since 1993 were analyzed respectively in the view of prognostic influence of patient age, tumor size, location, histologic type, histologic grade, resection type, surgical margin, chemotherapy and radiation therapy on local recurrence, distant metastasis and event-free survival. The mean follow up period was 39 months. The univariate and multivariate regression analysis were performed for statistical evaluation. RESULTS: The local recurrences occurred in 11 patients (21.2%) and distant metastasis in 4 patients (8%), Event-free survival rate at 4 year follow up was 67%. In univariate analysis, histologic grade, surgical margin, chemotherapy and radiation therapy were significant prognostic factors on local recurrence (p<0.05). However, histologic grade lost its significance in muitivariate analysis. Trunk location revealed higher rate of distant metastasis than extremity location. In univariate analysis on event-free survival. histologic grade and chemotherapy were significant factors (p<0.05). No factor remained significant in multivariate analysis. CONCLUSION: Considering selection bias, positive surgical margin was negative prognostic factor on local recurrence. Liposarcomas arisen in trunk revealed higher rate of distant metastasis. There was no independent prognostic factor on event-free survival of patients with liposarcomas.
Disease-Free Survival ; Extremities ; Follow-Up Studies ; Humans ; Liposarcoma ; Multivariate Analysis ; Neoplasm Metastasis ; Recurrence ; Retrospective Studies ; Selection Bias

PURPOSE: The purpose of this study was to determine whether the number of distal locking screws affected the final radiologic results after volar plate fixation for distal radius fractures. METHODS: We retrospectively identified 176 patients (male, 36; female, 140; average, 60 years) who had distal radius fractures treated with open reduction and volar plate fixation between 2011 and 2012. The number of screws used for distal fixation was determined according to the surgeon's preference and the type of plate used. Radiologic parameters and their displacements were measured postoperatively and at final follow-up. The results of using 4 or 5 distal locking screws were compared with those of using more than 6 distal locking screws. RESULTS: There was no significant displacement in fracture fragment when using 4 or 5 distal locking screws compared with using more than 6 distal locking screws. Mean displacement in ulnar variance was 0.6 mm in group with less than 5 screws, and the displacement was 0.4 mm in group with more than 6 screws (p=0.772). Secondary displacement was not correlated with fracture type or the number of distal locking screws. There was no fixation failure during the study period. CONCLUSION: It seems that 4 or 5 distal locking screws are strong enough to prevent a significant loss of fracture reduction. Filling every distal screw hole is not recommended to limit cost and avoid extensor tendon complications.
Female ; Follow-Up Studies ; Humans ; Radius Fractures* ; Retrospective Studies ; Tendons ; Palmar Plate*

Fungal endocarditis is a rare disease in infants, but it has been reported with increasing frequency among premature infants requiring neonatal intensive care. Congenital heart disease, pro- longed intravenous catheterization, the use of intravenous alimentation, broad-spectrum antibiotics administration and narcotic addiction are risk factors. Candida endocarditis is an unusual but severe complication of systemic candidiasis. Its occurrence has been related to the placement of a central venous catheter with its tip close to or within the right atrium and persistent candidemia. Embolization to major blood vessels is a common complication of Candida endocarditis and repeated pulmonary emboli are suspected to be cause of the repeated episodes of circulatory shock which finally leads to death. Thus, early diagnosis of Candida invasion and prevention of Candida endocarditis are essential for survival. We report a case of Candida endocarditis which was successfully managed with surgical removal and antifungal therapy. (J Korean Pediatr Soc 2000;43:832 836)
Anti-Bacterial Agents ; Blood Vessels ; Candida* ; Candidemia ; Candidiasis ; Catheterization ; Catheters ; Central Venous Catheters ; Early Diagnosis ; Endocarditis* ; Heart Atria ; Heart Defects, Congenital ; Humans ; Infant ; Infant, Newborn ; Infant, Premature ; Intensive Care, Neonatal ; Opioid-Related Disorders ; Rare Diseases ; Risk Factors ; Shock ; Tricuspid Valve*

PURPOSE: To evaluate the usefulness of computed tomography(CT) scanning in classification and selection of treatment method for distal radius fractures involving articular surfaces. MATERIALS AND METHODS: Plain radiographs and CT scans of 42 patients with intraarticular distal radius fractures was analysed for type of fractures and surgical indication and then the results were compared. RESULTS: Fracture types were changed in 15 of 42 patients. 10 patients with AO B1, B3, C1 or C2 type fractures were reclassified as C3 type, which suggested that CT scan revealed articular comminution more accurately. According to the assesment of plain radiographs, 16 patient needed surgical treatment. However additional 17(68%) patients were necessary operation on the bases CT scan evaluation. CONCLUSIONS: Evaluation of intraarticular fractures of distal radius using CT scan was useful for fracture classification and selection of treatment methods, which provided an accurate assessment of fracture patterns and reduction status.
Equidae ; Humans ; Intra-Articular Fractures ; Radius ; Radius Fractures

BACKGROUND: Since 1997, the annual case occurrence of vivax malaria in the Republic of Korea have exceeded 1,000 cases since 1997. The military is thought to be an important source of the current outbreak. We collected various informations about malaria cases (soldiers, veterans and civilians) which occurred in 2000, and analyzed the characteristics of the current outbreak. METHODS: Informations about malaria cases of soldiers, veterans and civilians, including name, age, sex, day of onset, region, etc., were collected through the National Institute of Health. RESULTS: Out of total 4,141 cases, 1,288 (31.1%) occurred in the military, 1,273 (30.7%) occurred among the veterans, and 1,580 (38.2%) occurred among civilians. The monthly case occurrence reached its peak in early August. Areas such as Cheolwon, Yeoncheon and Paju showed the highest prevalence. CONCLUSION: It is considered that the current malaria outbreak has escaped from the exponential growth phase, however, more attention should be paid to prevent further spreading of malaria infection.
Humans ; Malaria ; Malaria, Vivax* ; Military Personnel ; Prevalence ; Republic of Korea* ; United Nations ; Veterans

PURPOSE: There are many controversies concerning therapeutic guidelines for the treatment of Kienbock's disease. The purpose of this study is to evaluate the clinical and radiological result of lunate replacement by vascularized os pisiform transfer in advanced Kienbock's disease. MATERIALS & METHODS: There were two men and three women. The mean age was 55 years, ranging from 41 to 70. According to Lichtman's classification, three cases were stage IIIb and two cases were stage IV. RESULTS: At the period of follow up, pain during motion was markedly diminished in all patients, the arc of motion ranged on average from 49 degrees of flexion to 53 degrees of extension and the grip power of the affected hand reached on average 83% compared with the contralateral side. Clinical results assessed by DASH and modified Mayo score showed 8 and 90. On plain X-rays, carpal height ratio and radioscaphoid angle were not changed postoperatively. CONCLUSION: Lunate excision and vascularized os pisiform transfer is a reliable alternative method for the treatment of advanced Kienbock's disease.
Female ; Follow-Up Studies ; Hand ; Hand Strength ; Humans ; Male ; Osteonecrosis