Peripheral blood stem cells(PBSC) were collected for autologous transplantation for the first time in Korea wish Fenwal CS-3000 Plus blood cell separator. Twenty-nine procedures were performed for 7 patients without any incidents. GM-CSF(400ug) was administered daily for 5 days before PBSC collection and the collections were performed 3-6 successive days. A total of 3.5-11.4 x 109 mononuclear cells(MNCs) were collected from 7,000mL blood processed per procedure. The number of MNCs collected was mainly dependent on the concentration of MNCs in patient's blood(r = 0.68, p<0.01). We concluded that the PBSC trans plantation program could be set up without difficulty in Korea since the Fenwal CS-3000 Plus blood cell separator is already available in many institutions and the procedure used in this study is easy to follow.
Autografts ; Blood Cells* ; Humans ; Korea ; Stem Cells* ; Transplantation, Autologous

No abstract available.
Adult* ; Humans ; Purpura, Thrombocytopenic, Idiopathic*

No abstract available.
Adult* ; Humans ; Purpura, Thrombocytopenic, Idiopathic*

A fabrication method of inner and outer crown using CAD/CAM is presented. The information of abutment teeth is transferred to a computer through a 3-dimensional scanner. A Konus inner and outer crown is designed on a computer and a real crown is machined based on this design using CAM. This method can save laboratory time and reduce inaccuracies compare to conventional casting procedure. A stone model with six prepared abutment teeth from a patient was used in this study. Three dimensional information from the model was transferred to a computer using a contact type 3dimensional scanner with a 25micrometer accuracy. All margins were identified on a computer image where there is a change in surface taper of a model. To provide a cement space, the image of a inner surface of a Konus inner crown was duplicated 25micrometer apart from the surface of a prepared abutment teeth image. The cement space was 20micrometer at the cervical margin. All Konus crowns were machined with a 10micrometer accuracy. It was concluded that this method can reduce working-time for the laboratory process and increase accuracy. A further research is required to make a simplified process for a more complex prosthesis.
Computer Graphics* ; Crowns* ; Humans ; Prostheses and Implants ; Tooth

No abstract available.
Blood Platelets* ; Blood Transfusion*

No abstract available.
Diagnosis* ; Hemoglobinuria*

In planning treatment of tibial condylar fracture, the patient's age and physical condition, associated ligament injury and accurate fracture diagnosis, such as presence and degree of separatiori of split fragment, type of fracture and the severity of comminution must be considered. For accurate diagnosis, many kinds of methods including simple X-ray, arthroscopy, arthrography and tomography can be used. In spite of these procedures, sometimes we cannot know the accurate fracture morphology. The computed tomography(CT) has many advantages over other diagnostic methods. The application of CT in the evaluation of patients with spinal and pelvic fractures has been established, but rarely has its usefulness been noted in tibial condylar fracture. We thought that in assessing tibial condylar fracture, CT is more useful and accurate than conventional radiography. From March 1985 to August 1986, we took 17 patients(18 cases) of tibial condylar CT and were convinced with that it is a good diagnostic method. The results are as follows: l. In 5 cases, we could find a new fracture on CT film, which was impossible to be detected on simple X-ray. 2. In 7 cases, the fracture classification by plain X-rays was changed after CT check-up. 3. We could make the decision of treatment methods easily through more realistic classification and better recognition of split and comminution. 4. Proper approach could be done by understanding the accurate fracture size and localization.
Arthrography ; Arthroscopy ; Classification ; Diagnosis ; Humans ; Ligaments ; Methods ; Radiography

In spite of vigorous efforts to enhance appropriateness of blood usage in surgery, it is recognized that there are still not a few overuse and misuse of blood products in Korean hospitals. To assure appropriate use of blood, continuous monitoring and controlfling blood orders, particularly for surgical operations, should be implemented. The indicator of 'ratio of crossmatching to transfusion' (C/T ratio) has been focalized on in this regard. The authors investigated C/T ratio for eight hospitals, evenly distributed in their geographical location as well as size. Only elective surgeries operated from March 1 to May 31, 1995 were included for analysis. Standardized survey format was distributed, and retrospective reviews of medical records were performed by volunteer surveyors from each hospital after two sessions of pre- survey education. The results were as follows. Average C/T ratio, for all hospitals and all surgeries, was 1.76. Differences in C/T ratio by sex, months, clinical departments, blood components were not significant. However, the ratio showed increasing tendency with ages. The C/T ratio on the average was not higher, compared with the recommended guideline. However, due to study' s limitations ini standardization of survey method and verification of data, we could not conclude that current status of appropriateness of blood use is satisfactory. In addition, to pervasively use the C/T ratio as a quality indicator for blood use management, supplementary measures, such as standardization of data, should be adopted.
Surveys and Questionnaires ; Education ; Medical Records ; Quality Indicators, Health Care* ; Retrospective Studies ; Volunteers

No abstract available.

No abstract available.
Thyroid Gland* ; Thyroiditis*