1.Endoscopic Retrograde Cholangiopancreatography and Endoscopic Sphincterotomy in Patients with a Previous Billroth-II Resection.
Myung Hwan KIM ; Sun Young YI ; Sung Koo LEE ; Young Il MIN ; Sung Gyu LEE ; Pyung Chul MIN
Korean Journal of Gastrointestinal Endoscopy 1992;12(2):267-269
Endoscopic retrograde cholangiopancreatography(ERCP) and its therapeutic developments have become popular in the managemtnt of patients with biliary and pancreatic disease. But certain to anatomical arrangements such as Billroth II partial gastrectomy may cause technical difficulty In the patients with a previous Billroth-II resection, it may be difficult to enter the afferent loop Selectively; and to reach and identify the papilla. Cannulation and sphincterotomy are more difficult because of the direction of approach. Endoscopic retrograde cholangiopancreatography(ERCP) and/or endoscopic sphineterotomy (EST) was perfomed on 12 patients, who had received Billroth II gastrectomy. We could achieve successful cholangiogram in 9 patients(75%) out of 12 patients, And EST was done successfully in 5 patients(83%) out of 6 patients.
Catheterization
;
Cholangiopancreatography, Endoscopic Retrograde*
;
Gastrectomy
;
Gastroenterostomy
;
Humans
;
Pancreatic Diseases
;
Sphincterotomy, Endoscopic*
2.Drying time of tray adhesive for adequate tensile bond strength between polyvinylsiloxane impression and tray resin material.
Myong Hee YI ; Joon Sung SHIM ; Keun Woo LEE ; Moon Kyu CHUNG
The Journal of Advanced Prosthodontics 2009;1(2):63-67
STATEMENT OF PROBLEM: Use of custom tray and tray adhesive is clinically recommended for elastomeric impression material. However there is not clear mention of drying time of tray adhesive in achieving appropriate bonding strength of tray material and impression material. PURPOSE: This study is to investigate an appropriate drying time of tray adhesives by evaluating tensile bonding strength between two types of polyvinylsiloxane impression materials and resin tray, according to various drying time intervals of tray adhesives, and with different manufacturing company combination of impression material and tray adhesive. MATERIAL AND METHODS: Adhesives used in this study were Silfix (Dentsply Caulk, Milford, Del, USA) and VPS Tray Adhesive (3M ESPE, Seefeld, Germany) and impression materials were Aquasil Ultra (monophase regular set, Dentsply Caulk, Milford, Del, USA) and Imprint II Garant (regular body, 3M ESPE, Seefeld, Germany). They were used combinations from the same manufacture and exchanged combinations of the two. The drying time was designed to air dry, 5 minutes, 10 minutes, 15 minutes, 20 minutes, and 25 minutes. Total 240 of test specimens were prepared by auto-polymerizing tray material (Instant Tray Mix, Lang, Wheeling, Il, USA) with 10 specimens in each group. The specimens were placed in the Universal Testing machine (Instron, model 3366, Instron Corp, University avenue, Nowood, MA, USA) to perform the tensile test (cross head speed 5 mm/min). The statistically efficient drying time was evaluated through ANOVA and Scheffe test. All the tests were performed at 95% confidence level. RESULTS: The results revealed that at least 10 minutes is needed for Silfix-Aquasil, and 15 minutes for VPS Tray Adhesive-Imprint II, to attain an appropriate tensile bonding strength. VPS Tray Adhesive-Imprint II had a superior tensile bonding strength when compared to Silfix-Aquasil over 15 minutes. Silfix-Aquasil had a superior bonding strength to VPS Tray Adhesive-Aquasil, and VPS Tray Adhesive-Imprint II had a superior tensile bonding strength to Silfix-Imprint II at all drying periods. CONCLUSION: Significant increase in tensile bonding strength with Silfix-Aquasil and VPS Tray adhesive-Imprint II combination until 10 and 15 minutes respectively. Tray adhesive-impression material combination from the same company presented higher tensile bonding strength at all drying time intervals than when using tray adhesive-impression material of different manufactures.
Adhesives
;
Collodion
;
Dental Impression Materials
;
Elastomers
;
Head
;
Polymers
;
Polymethyl Methacrylate
;
Polyvinyls
;
Siloxanes
3.A Case of Choledochocele.
Myung Hwan KIM ; Jae Yong CHIN ; Sun Young YI ; Sung Koo LEE ; Young Il MIN
Korean Journal of Gastrointestinal Endoscopy 1993;13(1):137-140
A choledochocele is a benign cyst-like herniation of the intramural segment of the distal common bile duct protruding into the duodenal lumen. Cholangiography is essential to demonstrate a choledochocele. Because choledochoceles are often associated with characteristic structual alterations of the papilla of Vater and the peripapillary area, ERCP is helpful in demonstrating a choledochocele. We present the clinical, endoscopic and radiographic (ERCP) findings in a patient with choledochocele.
Cholangiography
;
Cholangiopancreatography, Endoscopic Retrograde
;
Choledochal Cyst*
;
Common Bile Duct
;
Humans
4.A Case of Choledochocele.
Myung Hwan KIM ; Jae Yong CHIN ; Sun Young YI ; Sung Koo LEE ; Young Il MIN
Korean Journal of Gastrointestinal Endoscopy 1993;13(1):137-140
A choledochocele is a benign cyst-like herniation of the intramural segment of the distal common bile duct protruding into the duodenal lumen. Cholangiography is essential to demonstrate a choledochocele. Because choledochoceles are often associated with characteristic structual alterations of the papilla of Vater and the peripapillary area, ERCP is helpful in demonstrating a choledochocele. We present the clinical, endoscopic and radiographic (ERCP) findings in a patient with choledochocele.
Cholangiography
;
Cholangiopancreatography, Endoscopic Retrograde
;
Choledochal Cyst*
;
Common Bile Duct
;
Humans
5.The effect of bone matrix gelatin on DNA synthesis in primary culture of osteoblast.
Key Yong LEE ; Choon Sung LEE ; Won Hyeok OH ; Jung Jae KIM ; Jae Dam LEE ; Sung Woo CHO ; Geum Yi KIM
The Journal of the Korean Orthopaedic Association 1992;27(2):583-587
No abstract available.
Bone Matrix*
;
DNA*
;
Gelatin*
;
Osteoblasts*
6.A long-term follow up study on pulmanary function after lobectomy and pneumonectomy.
Yi Hyeong LEE ; Se Kyu KIM ; Joon CHANG ; Kyung Young CHUNG ; Chul Min AHN ; Sung Kyu KIM ; Won Young LEE
Tuberculosis and Respiratory Diseases 1993;40(6):638-645
No abstract available.
Follow-Up Studies*
;
Pneumonectomy*
7.A Study on the Effects of EMR on Nursing Documentation.
Chung Hee LEE ; Young Hee SUNG ; Yeon Yi JUNG ; Jeong Lim LEE
Journal of Korean Society of Medical Informatics 2000;6(4):87-97
To improve the quality of nursing care, we developed and evaluated a Electronic Medical Record (EMR) program designed to maximize productivity and efficiency in our nursing documentation system. Five computerized documentation forms, the clinical observation record, medication, nursing treatments, nursing records, and admission assessment were developed by a nursing informatics team over 5 months and implemented on a cardiovascular unit. In the EMR program, nurses access and record required documentation at the patients besides with a laptop computer instead of using conventional chart. Four categories of data were compared before and after operating EMR program; the time spent in direct patient care, the time spent in nursing documentation, nurses' s job satisfaction, and patients' satisfaction. The result showed a statistically significant increase in the time spent in direct patient care after implementation of EMR system, as well as a decrease in the time spent in nursing documentation. Nurses job satisfaction was increased and patients' satisfaction was decreased, but both were not significant statistically.
Efficiency
;
Electronic Health Records
;
Humans
;
Job Satisfaction
;
Nursing Care
;
Nursing Informatics
;
Nursing Records
;
Nursing*
;
Patient Care
8.Clinical Significance of Vascular Endothelial Growth Factor in Patients with Lung Cancer and Tuberculous Pleurisy.
Byung Kook IM ; Yoou Jung OH ; Seung Soo SHEEN ; Key Sung LEE ; Kwang Joo PARK ; Sung Chul HWANG ; Yi Hyeong LEE ; Jin Hyuk CHOI ; Ho Young LIM
Tuberculosis and Respiratory Diseases 2001;50(2):171-181
BACKGROUND: Angiogenesis is an essential process for the growth and metastatic ability of solid tumors. One of the key factors known to be capable of stimulating tumor angiogenesis is the vascular endothelial growth factor (VEGF). The serum VEGF concentration has been shown to be a the malignant pleural effusion showing a correlation with the biochemical parameters. The VEGF has been shown to play a role in the inflammatory diseases, but rarely in the tuberculosis (TB). The serum and pleural fluid VEGF levels were measured in patients with lung cancer and TB. Their relationship with the clinical and laboratory parameters and repeated measurement 3 months after various anticancer treatments were evaluated to assess the utility of the VEGF as a tumor marker. METHODS: Using a sandwich enzyme-linked immunosorbent assay, the VEGF concentration was measured in both sera and pleural effusions collected from a total of 85 patients with lung cancer, 13 patients with TB and 20 healthy individuals. RESULTS: The serum VEGF levels in patients with lung cancer (619.9±722.8ph/ml) were significantly higher than those of healthy controls (215.9±191.1pg/ml), However, there was no significant difference between the VEGF levels in the lung cancer and TB patients. The serum VEGF levels were higher in large cell and undifferentiated carcinoma than in squamous cell carcinoma and adenocarcinoma. The serum VEGF levels of lung cancer patients revealed no significant relationship with the various clinical parameters. The VEGF concentrations in the malignant effusion (2,228.1±2,103.0pg/ml) were significantly higher than those in the TB effusion (897.6±978.8pg/ml). In the malignant pleural effusion, the VEGF levels revealed significant correlation with the number of red blood cells (r=0.75), the lactate dehydrogenase (LDH)(r=0.70), and glucose concentration (r=-0.55) in the pleural fluid. CONCLUSION: The serum VEGF levels were higher in the lung cancer patients. The VEGF levels were more elevated in the malignant pleural effusion than in the tuberculous effusion. In addition, the VEGF levels in the pleural fluid were several times higher than the matched serum values suggesting a local activation and possible etiologic role of VEGF in the formation of malignant effusions. The pleural VEGF levels showed a significant correlation with the numbers of red blood cells, LDH and glucose concentrations in the pleural fluid, which may represent the tumor burden.
Adenocarcinoma
;
Carcinoma
;
Carcinoma, Squamous Cell
;
Enzyme-Linked Immunosorbent Assay
;
Erythrocytes
;
Glucose
;
Humans
;
L-Lactate Dehydrogenase
;
Lung Neoplasms*
;
Lung*
;
Pleural Effusion
;
Pleural Effusion, Malignant
;
Tuberculosis
;
Tuberculosis, Pleural*
;
Tumor Burden
;
Vascular Endothelial Growth Factor A*
9.Expression of p53 Protein and Ki-67 in Atypical Ductal Hyperplasia, Ductal Carcinoma in Situ, and Microinvasive Ductal Carcinoma of the Breast.
Yi Kyeong CHUN ; Hye Sun KIM ; Yee Jeong KIM ; Sung Ran HONG ; Hy Sook KIM ; Byung Jun PARK ; Sung Su KANG ; Ji Hyun LEE ; Sung Kong LEE ; Sun Hee SUNG ; Woon Sup HAN
Korean Journal of Pathology 2000;34(9):665-672
Mutation of the p53 gene is one of the most common genetic alterations in invasive breast carcinoma. However, it is unclear that the mutation usually occurs in noninvasive breast lesions. It might be expected that there is a correlation between histologic progression of breast lesions and proliferative rate. We investigated the expression of p53 protein and Ki-67 labelling index (LI) using immunohistochemistry in 16 ductal carcinoma in situ with microinvasion (DCIS-Mi), 56 DCIS, 15 atypical ductal hyperplasia (ADH), and 7 intraductal hyperplasia (IDH). Expression of p53 protein was detected in 33.9% of DCIS and 56.3% of DCIS-Mi and was confined exclusively in Van Nuys DCIS group 2 and 3. In ADH and IDH, no expression of p53 protein was found. There was no significant correlation between Van Nuys DCIS groups and Ki-67 LI. In conclusion, p53 mutation may be involved in the neoplastic progression from ADH to DCIS and is directly related to high nuclear grade and associated necrosis of DCIS.
Breast Neoplasms
;
Breast*
;
Carcinoma, Ductal*
;
Carcinoma, Intraductal, Noninfiltrating*
;
Genes, p53
;
Hyperplasia*
;
Immunohistochemistry
;
Necrosis