Injuries to the acromioclavicular joint are usually the result of force applied downward to the acromoion. Surgery treatment modalities for grade IU complete acromioclavicular dislocation are extremely varied and usually successful. 13 cases of complete acromioclavicular dislocation were operated by techniuqe of Kirschner wire with tension-band wiring at Wonju Christian Hospital from June 1984 to Oct. 1985. And they had been followed for average 17.8 months and following results were obtained. l. Of the 13 cases, male was 8 cases(61%) and female was 5 cases(39%) . 2. The most common cause of injury was traffic accident. Nexts were fall down, slip down and direct blow. 3. Results were evaluated by using Weaver and Dunn criteria, 12 cases(92.3%) were good and 1 case was fair but this technique involved a more extensive implant removal that required general anesthesia. Therefore, AO tension-band wiring is thought useful operative method in the treatment of acromioclavicular dislocation.
Accidents, Traffic ; Acromioclavicular Joint ; Anesthesia, General ; Dislocations ; Female ; Gangwon-do ; Humans ; Male ; Methods

PURPOSE: To describe the radiological differences between tuberculous(TBB) and non-tuberculous bronchiectasis(NTBB). MATERIALS AND METHODS: Chest radiographs(n=62), bronchograms(n=18), and CT scans(n=52) of 37 patients with TBB and 25 patients with NTBB were reviewed retrospectively. Diagnostic basis for TBB were positive sputum AFB with or without history of anti-tuberculous chemotherapy(n=35), and radiological findings of pulmonary tuberculosis (n=2). Four of NTBB had a history of severe respiratory tract infection in childhood. RESULTS: Air-fluid levels on chest radiographs were seen in 2% of TBB, and 20% of NTBB. On bronchograms, all patients with TBB had combined focal bronchostenosis, whereas patients with NTBB had tubular(50%), cystic(17%), or mixed(33%) pattern of dilatation without stenosis. On CT scans, focal emphysema was seen in 86% of the patients with TBB, and 38% of the patients with NTBB. Peribronchiolar infiltration were seen in 78% and 44% of patients with TBB and NTBB, retrospectively. CONCLUSION: Basic radiological difference between TBB and NTBB was that the former had coexistent sten.
Bronchiectasis* ; Constriction, Pathologic ; Dilatation ; Humans ; Pulmonary Emphysema ; Radiography, Thoracic ; Respiratory Tract Infections ; Retrospective Studies ; Sputum ; Thorax ; Tomography, X-Ray Computed ; Tuberculosis, Pulmonary

Missing data such as appropriateness ratings in clinical research are a common problem and this often yields a biased result. This paper aims to introduce the multiple imputation method to handle missing data in clinical research and to suggest that the multiple imputation technique can give more accurate estimates than those of a complete-case analysis. The idea of multiple imputation is that each missing value is replaced with more than one plausible value. The appropriateness method was developed as a pragmatic solution to problem of trying to assess "appropriate" surgical and medical procedures for patients. Cataract surgery was selected as one of four procedures that were evaluated as a part of the Clinical Appropriateness Initiative. We created mild to high missing rates of 10%, 30% and 50% and compared the performance of logistic regression in cataract surgery. We treated the coefficients in the original data as true parameters and compared them with the other results. In the mild missing rate (10%), the deviation from the true coefficients was quite small and ignorable. After removing the missing data, the complete-case analysis did not reveal any serious bias. However, as the missing rate increased, the bias was not ignorable and it distorted the result. This simulation study suggests that a multiple imputation technique can give more accurate estimates than those of a complete-case analysis, especially for moderate to high missing rates (30 - 50%). In addition, the multiple imputation technique yields better accuracy than a single imputation technique. Therefore, multiple imputation is useful and efficient for a situation in clinical research where there is large amounts of missing data.
Cataract Extraction/*methods ; Humans ; Logistic Models ; Research Support, Non-U.S. Gov't

No abstract available.
Korea*

No abstract available.
Adenocarcinoma, Mucinous* ; Child* ; Colon* ; Humans ; Mucins*

No abstract available.
Emergencies* ; Emergency Service, Hospital* ; Humans ; Statistics as Topic*

BACKGROUND: Hemoptysis is a common clinical symptom, responsible for 11% of admission to the hospital chest service. Correct diagnosis, accurate localization of the bleeding source and proper management are imperative to reduce the risk of massive hemoptysis. We performed the study to define the optimal time of fiberoptic bronchoscopy in 63 patients with hemoptysis admitted to Kyung Hee University Hospital between Aug 1989 and Aug1992. METHODS: Retrospective analysis of medical records concerning the cause, amount, duration of hemoptysis and the timing of fiberoptic bronchoscopy in 63(M:F=36:27) patients. RESULTS: 1) The main causes of hemoptysis were pulmonary tuberculosis(52.4%) bronchiectasis(27.0%) and lung cancer(11.1%). 2) The bleeding sites were localized in 26 Patients(41.3%). 3) The rates of localization of bleeding site were not related to the amount and duration of hemoptysis. 4) The rates of localization of bleeding site were 61.8%(21/34) during hemoptysis,18.2%(122) within 24hr after resolution of hemoptysis, 14.3%(1/7) thereafter. CONCLUSION: Early bronchoscopy, especially during hemoptysis may show higher rates of successful localization than delayed bronchoscopy.
Bronchoscopy* ; Diagnosis ; Hemoptysis* ; Hemorrhage* ; Humans ; Lung ; Medical Records ; Retrospective Studies ; Thorax

No abstract available.
Diaphragm* ; Stomach Volvulus*

PURPOSE: To elucidate high-resolution CT(HRCT) findings and their pathologic basis in pulmonary oil embolism induced by LipiodoI-Adriamycin emulsion. MATERIALS AND METHODS: Pulmonary oil embolism was induced by infusing LipiodoI-Adriamycin emulsion through a peripheral vein in twelve Yorkshire pigs. Serial HRCT scans were performed on 2rid, 4th, 7th, 14th, and 28th day after the procedure. The pigs were sacrificed immediately after HRCT and histologic specimens were prepared in the same plane and level with HRCT. RESULTS: The basic pathology was reversible hemorrhagic edema of the lung. On HRCT, intraalveolar hemorrhage and edema in the acute stage manifested as ground-glass opacity or air-space consolidation of the whole secondary Iobule. The lesions were predominantly distributed over the dependent posterior lung fields because the specific gravity of Lipiodol is 1.28. Interlobular septal thickening due to edematous fluid collection was also associated. With the elapse of time, the extent and severity of the acute lesions resolved and, sometimes, changed into small nodular opacities. Pulmonary opacity was most severe on the post-embolization 2nd day and completely resolved within 2 weeks. CONCLUSION: Pulmonary embolization of LipiodoI-Adriamycin emulsion causes reversible hemorrhagic edema of the lung and Lipiodol toxicity seems to play a major role. HRCT findings of pulmonary oil embolism are quite different from those of pneumonia and pulmonary metastasis, which suggests the possibility of clincal application.
Edema ; Embolism* ; Ethiodized Oil ; Hemorrhage ; Lung ; Neoplasm Metastasis ; Pathology ; Pneumonia ; Specific Gravity ; Swine ; Veins

Cell kinetic information is an important adjunct to histologically-based tumor classification. Studies on growth regulation and cellular transformation will be assisted by the identification of proteins that are synthesized in dividing cells. Proliferating cell nuclear antigen(PCNA) also known as cyclin, is a cell cycle-related nuclear protein that is maximally elevated in late G1 and S phases of proliferating cells. PCNA reacts with proliferating cells including tumor cells but gives undetectable immunofluorescence with resting cells of normal tissue. NORs are loop of DNA which occur in nucleoli and possess ribosomal DNA genes. Ribosomal DNA genes are of vital significance in the ultimate synthesis of protein, and that protein associated with NORs are stained with silver nitrate(Ag-NORs). AgNORs were studied in various tumors and may reflect the activity of cells and may be an indicator of the degree of malignancy. To evaluate the correlation between cellular proliferating activity and variable prognostic parameters, an immunohistochemical staining for PCNA and silver nitrate staining of NORs were performed in 23 cases of prostatic adenocarcinoma and 10 cases of benign prostatic hyperplasia, as control. The results were summarized as follows; 1. The mean expression of PCNA in BPH, well, moderately and poorly differentiated adenocarcinoma was 8.17+/-2.77(mean+/-SD ;n = 10), 21.75+/-6.11(n = 6), 19.40+/-6.98 (n=10) 27.93+/-8.23%(n=7), respectively in each group. Statistically significant differences were found in each group (p <0.05) except between well and moderately differentiated adenocarcinoma. 2. The mean number of Ag-NORs in BPH, well, moderately and poorly differentiated adenocarcinoma was 1.24+/-0.10(mean+/-SD;n=10), 1.87+/-0.23(n=6), 2.08+/-0.28(n=10) 4.02+/-0.22 (n = 7), respectively in each group. As the grade of tissues increased, the mean number of Ag-NORs increased too. The results showed statistically significant differences in each group (p < 0.05) except between well and moderately differentiated adenocarcinoma. 3. The mean area of Ag-NORs calculated by morphometry in BPH, well, moderately and poorly differentiated adenocarcinoma was 5.40+/-1.8um2, 7.84+/-3.68um2, 14.02+/-4.95um2, 23.9+/-6.94um2, respectively and significant differences was found statistically in each group (p < 0.05 ). 4. There was significant correlation between the expression of PCNA and the number of AgNORs(r= 0.800, p= 0.0001), the expression of PCNA and the area of AgNORs (r=0.788, p=0.0001). We concluded that the expression of PCNA and the number and area of NORs were increased with the degree of malignancy and may reflect the proliferative activity of cells in prostatic adenocarcinoma. PCNA and Ag-NORs may be a valuable prognostic indicator of patient's survival, but further studies will be needed to confirm its exact prognostic role.
Adenocarcinoma* ; Classification ; Cyclins ; DNA ; DNA, Ribosomal ; Fluorescent Antibody Technique ; Nuclear Proteins ; Nucleolus Organizer Region* ; Proliferating Cell Nuclear Antigen ; Prostatic Hyperplasia ; S Phase ; Silver ; Silver Staining