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장이찬(Lee Chan Jang),최재운(Jae Won Choi),김선희(Sun Whe Kim),박용현(Yong Hyun Park) 대한소화기학회 1995 대한소화기학회지 Vol.27 No.2
N/A Background/Aims: Epidemiologic studies and animn1 experiments have suggested that high-carbohydrate diet affects the formation of pigment gallstone. Although the mechanism is not clear, recent evidence .uggest that high carbohydrate diet may cause poor cholecystokinin(CCK) release. Thus, antiproteinase, which increase cholecystokinin, has been suggested as a candidate for prophylaxis against pigment gallstone. However increased CCK decreases food intake and weight gain. Therefore the present study was undertaken to define the relationship between restricted intake of high carbohydrate diet and pigment gllstone. Methods: Fourty hamsters were divided into 2 groups: Group I was fed high carbohydrate diet ad libitum, and Group II was fed 90% of ad libitum for 8 weeks. Hamsters was sacrificed at the 9th week. Grallbladder was explored to detect whether gallstone was present or not. Grallbladder hile was aspirated. Blood was aspirated by direct cardiac puncture and serum was collected by centrifuge. Bile composition was analysed by Kits, one sample was composed of gallbladder hile from 3 or 4 hamsters. Serum was analysed by automatic analyser, one sample was composed of serum from two hamsters. Results: Gallstones were found in 80%(16/20) of group I and 20%(4/20) of group II(p<0.0001). Gallbladder bile compostion including cholestero1(S8.8 4.65 vs 69.2 7.33mg/ dl, p=0.29), phospholipid(652 88.99 vs 480 7l.5mg/dl, p=0.2l), bilirubin(l9.4 ' 9.61 vs l6.8 t 3.22mg/dl, p=0.40) and bile acid(20.7 4.2 vs 20.4 3.0 mmol/L, p=0.99) were not different between group I and group II. Serum albumin(3.7l ' 0.03 vs 3.62 0.04 mg/dl, p=0.2), cholesterol(76.88 3.07 vs 77.6 3.65mg/ dL, p=0.9), triglyceride(182.66 l2.54 vs l66.9 7.63mg/dL, p=0.43) phospholipid(362.1 l ' 23.30 vs 395.6 9.76mg/ dL, p=0.46), calcium level(12.98 ! O. l4 vs 12.96 ! 0.12mg/dL, p=0.96) and phosporous(8.94! 0.15 vs 8.73 0.19mg/dL, p=0.34) were not different hetween group I and group II. Conclusion: Restricted diet inhibits gallstone fortnation in hamsters, but the mechanism was not defined. (Korean J Gastroenterol 1995; 27: 206-212)
김동주,장이찬,최재운,박진우,Dong-Ju Kim,M.D.,Lee-Chan Jang,M.D.,Jae-Woon Choi,M.D. and Jin-Woo Park,M.D. 대한갑상선-내분비외과학회 2012 The Koreran journal of Endocrine Surgery Vol.12 No.3
Clear cell renal cell carcinoma (RCC) is the most common histological subtype of malignant renal tumors. Although RCC frequently metastasizes to many organs, it rarely metastasizes to the thyroid gland without evidence of other organ involvement. We report a case of a metastatic renal cell carcinoma to the thyroid gland, which was misdiagnosed preoperatively as a follicular neoplasm from the fine needle aspiration cytology.
이충헌(Chung-Heon Lee),장이찬(Lee-Chan Jang),박진우(Jin-Woo Park),최재운(Jae-Woon Choi) 대한외과학회 2008 Annals of Surgical Treatment and Research(ASRT) Vol.74 No.1
Purpose: Since the early 20th century, IVC anomalies have been studied by autopsy, venography, CT, and MRI. Previous studies using conventional CT were usually performed with axial view images with a distance of 3∼5 ㎜. The aim of this study is to determine the incidence of IVC anomalies using MDCT (multi-detector computed tomography). Methods: 1,560 cases of abdominal MDCT imaged in Chungbuk National University hospital from July 2006 to November 2006 were included in this study. We reviewed axial view images at a distance of 1∼2 ㎜, and analyzed coronal view images and sagittal view images reconstructed by multiplanar reformatting with an E-film workstation. Results: The incidence of IVC anomalies was 2.38% (43/1,560). Two left IVC (0.12%), 12 double IVC (0.76%), 25 circumaortic left renal veins (1.6%), and 4 retroaortic left renal veins (0.25%) were detected. The common iliac vein was completely separated in six among 12 double IVC cases. In circumaortic left renal veins, the anterior left renal veins were usually prominent, and the posterior left renal veins were always located on the distal side. The mean distance between the anterior and posterior left renal vein was 39 ㎜. The incidence of a prominent left gonadal vein was 5%. Conclusion: IVC anomalies are not uncommon, and can have clinical implications. Awareness of anomalies can allow clinicians to avoid diagnostic pitfalls and intraoperative morbidity.
이충헌(Chung-Heon Lee),장이찬(Lee-Chan Jang),선우영(Woo-Young Sun),박진우(Jin-Woo Park),최재운(Jae-Woon Choi) 대한외과학회 2009 Annals of Surgical Treatment and Research(ASRT) Vol.77 No.6
Purpose: Left iliac vein compression is a risk factor for deep vein thrombosis (DVT) and often can be symptomatic. We wanted to know the incidence of left iliac vein compressions in the general population and the relationship between iliac vein compression and outflow fraction of the lower extremities. Methods: 1,523 cases examined with abdomen - pelvis CT were included in this study. Left iliac vein compression was calculated as the diameter of left common iliac vein at the site of maximal compression divided by the diameter of the uncompressed caudal common iliac vein. These cases were divided into 4 groups by the degree of iliac vein compression. In addition, left lower extremity venous outflow fractions in 106 patients with abdomen - pelvis CT images were recorded and analyzed. Results: The number and mean age of each group (group 1, 2, 3 and 4) were 351 (23%) & 62.3±13.4, 426 (28%) & 57.7±16.1, 529 (35%) & 50.1±20.4 and 217 (14%) & 40.7±22.9, respectively. While the age of patients was decreasing, the occurrence of left iliac vein compression increased (P<0.01). The mean left low extremity venous outflow fractions of each group (group 1, 2, 3 and 4) was 27.9±6.9%, 26.9±6.4%, 25.9±6.7% and 19.1±6.6%, respectively. The mean outflow fraction of group 4 was significantly lower than that of other groups (P<0.01). There was a tendency that the more left iliac vein compression increased, the more outflow fraction decreased (P=0.011). Conclusion: In 14% of 1,523 cases, there were severe left iliac vein compressions, more than 75% diameter, and the mean outflow fraction of that was lower than in others. Further study is needed to realize the relationship between left iliac vein compression and DVT.
간장 ( 肝臟 ) · 담도 ( 膽道 ) 및 췌장 ( 膵臟 ) : 만성 췌장염 환자의 임상적 고찰
이건욱(Kuhn Uk Lee),장이찬(Lee Chan Jang),오민구(Min Gu Oh) 대한소화기학회 1991 대한소화기학회지 Vol.23 No.4
N/A The 10 years (1980-1989) experience of 43 patients with chronic pancreatitis at Seoul National University Hospital has been analysed to investigate the relationship between history of pain, morphologic change of pancreas (calcification), and diabetes mellitus (DM), and to study indications of surgery and complications. The main etiologic factor was probably alcohol (30 case). The mean age of the patients with alcohol-induced chronic pancreatitis was 9 years below that of the other patients in men (no statistic difference). Calcifications were found in 29 patients, DM patients to require insulin therapy were 13 patients. calcifications were found in 12 patients among 13 diabetes mellitus patients (p<0.05). Pancreatic duct abnormality was found in 29 patients [moderate change of main pancreatic duct dilatation and/or stenosis; 22 cases, severe change of the above findings; 7 cases, filling defect (probably pancreatic duct stone); 7 cases.] Twenty-five patients had been lost average 10.5 Kg/3 months body weight, among whom 11 DM patients were included. There was no relationship between history of pain, morphologic change, and diabetes mellitus. The complications of chronic pancreatitis in 43 patients were pseudocyst (5 cases), comrnon bile duct stenosis (3 cases), splenic vein thrombosis (2 cases). The indications for surgery were pseudocyst (2 cases), cholestatic jaundice (1 case), GI bleeding due to splenic vein thrombosis and portal vein thrombosis (2 cases), pain relief (5 cases) and differential diagnosis from cancer (2 cases). There was no operative mortality.