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( Jin Nyoung Kim ),( Jae Young Jang ),( Soung Won Jeong ),( Jin Woo Choo ),( Soon Ha Kwon ),( Sae Hwan Lee ),( Sang Gyune Kim ),( Sang Woo Cha ),( Young Seok Kim ),( Young Deok Cho ),( Hong Soo Kim ) 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.1
Background/Aim: Detection and characterization of focal lesions in the liver is critical for screening patients with liver cirrhosis. The aim of this study was to investigate the sensitivity of magnetic resonance imaging (MRI) and spiral computed tomography (CT) for the diagnosis of hepatocellular carcinoma (HCC) and relation between radiologic findings and histopathology in HCC. Methods: One hundred four consecutive patients with HCC diagnosed by liver biopsy or hepatectomy were included. Radiologic findings such as CT and MRI were compared with histopathology. Typical radiologic finding of HCC was defined as early enhancement and early wash-out. Tumor cell differentiation was evaluated using Edmondson-Steiner criteria in liver cores. Results: Thirty one HCCs (29.8%) were grade 1 and 2, seventy three HCCs (70.9%) were grade 3 and 4. The sensitivity for detection of HCC was 83.7% for CT alone, 92.9% for MRI alone, 87.9% for both CT and MRI together, and 96% for either CT or MRI. Typical radiologic finding of HCC on CT has a tendency of well differentiated HCC (p=0.060), and typical findings of HCC on CT and MRI showed a significantly increased well differentiated HCC (p=0.013). Clinical variables were no significantly different according to the histopathology. Conclusion: Typical early enhancement and early wash-out pattern on CT and MRI showed a significantly increased well differentiated hepatocellular carcinoma on histopathology.
( Jin Nyoung Kim ),( Jae Young Jang ),( Soung Won Jeong ),( Jin Woo Choo ),( Soon Ha Kwon ),( Sae Hwan Lee ),( Sang Gyune Kim ),( Sang Woo Cha ),( Young Seok Kim ),( Young Deok Cho ),( Hong Soo Kim ) 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.-
Background/Aim: Measurement and assessment of portal hypertension are very important in the caring of patients with liver cirrhosis and in predicting relevant prognosis. This study compared the prognostic values of hepatic venous pressure gradient (HVPG), model for end-stage liver disease (MELD)- Na, and Child-Pugh score for the prediction of mortality in patients with liver cirrhosis. Methods: We investigated 136 patients with liver cirrhosis who underwent HVPG between July 2009 and March 2012. Clinical variables including laboratory data, presence of ascites, HVPG, MELD-Na, and Child-Pugh score were collected and analyzed. Cox regression model was developed to identify predictors of mortality. Accuracy of prediction was analyzed using the area under the receiver`s operating characteristics curve (AUROC). Results: HVPG, MELD-Na, Child-Pugh score, hemoglobin, HDL, albumin, and PIVKA2 significantly predicted overall mortality (univariate analysis, p<0.05). MELD-Na was an independent prognostic factor for prediction of overall mortality (multivariate HR; 23.569; p=0.043). Additionally, ascites was an independent prognostic factor for 6 month mortality (multivariate HR; 5.160; p<0.001), MELD-Na and ascites were independent prognostic factors for 12 month mortality (multivariate HR; 1.845, 1.974; p=0.030, p=0.016). AUROC was 0.698 for HVPG, 0.705 for MELD-Na, 0.591 for Child-Pugh score, respectively (p=0.015, p=0.012, p=0.266). Conclusion: MELD-Na is superior than HVPG and CTP score for the prediction of mortality in patients with liver cirrhosis.
( Jin Nyoung Kim ),( Kyoung Min Sohn ),( Moon Young Kim ),( Ki Tae Suk ),( Soung Won Jeong ),( Ho Eun Jung ),( Sae Hwan Lee ),( Sang Gyune Kim ),( Jae Young Jang ),( Young Seok Kim ),( Soon Koo Baik ) 대한간학회 2012 Clinical and Molecular Hepatology(대한간학회지) Vol.18 No.4
Background/Aims: Variceal hemorrhage is one of the major complications of cirrhosis and is associated with significant mortality and morbidity. The development of gastroesophageal varices and variceal hemorrhage is the most direct consequence of portal hypertension. Correlations between the hepatic venous pressure gradient (HVPG) and first variceal hemorrhage were examined. Methods: Patients with cirrhosis who underwent HVPG measurement between July 2009 and September 2010 were enrolled (n=535). All patients underwent esophagogastroduodenoscopy to enable the evaluation of gastroesophageal varices. Results: The HVPG for all patients was 16.46±7.05 mmHg (mean±SD), and was significantly higher among those with first variceal hemorrhage than in those without it. The HVPG was significantly correlated with both Child-Turcotte-Pugh (r=0.488, P<0.001) and Model for End-stage Liver Disease (r=0.478, P<0.001) scores. An HVPG value of 11 mmHg was predictive of first variceal hemorrhage with a sensitivity of 92.4% and a specificity of 27.7%. Conclusions: The HVPG was higher in patients with first variceal hemorrhage than in those without it. (Clin Mol Hepatol 2012;18:391-396)
( Jin Nyoung Kim ),( Jae Young Jang ),( Soung Won Jeong ),( Jin Woo Choo ),( Soon Ha Kwon ),( Sae Hwan Lee ),( Sang Gyune Kim ),( Sang Woo Cha ),( Young Seok Kim ),( Young Deok Cho ),( Hong Soo Kim ) 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.1
Background/Aim: Measurement and assessment of portal hypertension are very important in the caring of patients with liver cirrhosis and in predicting relevant prognosis. This study compared the prognostic values of hepatic venous pressure gradient (HVPG), model for end-stage liver disease (MELD)- Na, and Child-Pugh score for the prediction of mortality in patients with liver cirrhosis. Methods: We investigated 136 patients with liver cirrhosis who underwent HVPG between July 2009 and March 2012. Clinical variables including laboratory data, presence of ascites, HVPG, MELD-Na, and Child-Pugh score were collected and analyzed. Cox regression model was developed to identify predictors of mortality. Accuracy of prediction was analyzed using the area under the receiver’s operating characteristics curve (AUROC). Results: HVPG, MELD-Na, Child-Pugh score, hemoglobin, HDL, albumin, and PIVKA2 significantly predicted overall mortality (univariate analysis, p<0.05). MELD-Na was an independent prognostic factor for prediction of overall mortality (multivariate HR; 23.569; p=0.043). Additionally, ascites was an independent prognostic factor for 6 month mortality (multivariate HR; 5.160; p<0.001), MELD-Na and ascites were independent prognostic factors for 12 month mortality (multivariate HR; 1.845, 1.974; p=0.030, p=0.016). AUROC was 0.698 for HVPG, 0.705 for MELD-Na, 0.591 for Child-Pugh score, respectively (p=0.015, p=0.012, p=0.266). Conclusion: MELD-Na is superior than HVPG and CTP score for the prediction of mortality in patients with liver cirrhosis.
( Jin Nyoung Kim ),( Jae Young Jang ),( Soung Won Jeong ),( Jin Woo Choo ),( Soon Ha Kwon ),( Sae Hwan Lee ),( Sang Gyune Kim ),( Sang Woo Cha ),( Young Seok Kim ),( Young Deok Cho ),( Hong Soo Kim ) 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.-
Background/Aim: Detection and characterization of focal lesions in the liver is critical for screening patients with liver cirrhosis. The aim of this study was to investigate the sensitivity of magnetic resonance imaging (MRI) and spiral computed tomography (CT) for the diagnosis of hepatocellular carcinoma (HCC) and relation between radiologic findings and histopathology in HCC. Methods: One hundred four consecutive patients with HCC diagnosed by liver biopsy or hepatectomy were included. Radiologic findings such as CT and MRI were compared with histopathology. Typical radiologic finding of HCC was defined as early enhancement and early wash-out. Tumor cell differentiation was evaluated using Edmondson-Steiner criteria in liver cores. Results: Thirty one HCCs (29.8%) were grade 1 and 2, seventy three HCCs (70.9%) were grade 3 and 4. The sensitivity for detection of HCC was 83.7% for CT alone, 92.9% for MRI alone, 87.9% for both CT and MRI together, and 96% for either CT or MRI. Typical radiologic finding of HCC on CT has a tendency of well differentiated HCC (p=0.060), and typical findings of HCC on CT and MRI showed a significantly increased well differentiated HCC (p=0.013). Clinical variables were no significantly different according to the histopathology. Conclusion: Typical early enhancement and early wash-out pattern on CT and MRI showed a significantly increased well differentiated hepatocellular carcinoma on histopathology.
Synthesis of 2,2'-Dipyrryl Ketones from Pyrrole-2-carboxylic Acids with Trifluoroacetic Anhydride
Kim, Se Hee,Lim, Jin Woo,Yu, Jin,Kim, Jae Nyoung Korean Chemical Society 2013 Bulletin of the Korean Chemical Society Vol.34 No.9
An efficient synthesis of 2,2'-dipyrryl ketones has been carried out from pyrrole-2-carboxylic acids using trifluoroacetic anhydride (TFAA). Simultaneous generation of both mixed anhydride and 2-unsubstituted pyrrole, via facile decarboxylation with in-situ generated TFA, made their cross reaction (intermolecular Friedel-Crafts acylation) possible and efficient.
Kim, Sung Hwan,Lim, Jin Woo,Yu, Jin,Kim, Jae Nyoung Korean Chemical Society 2013 Bulletin of the Korean Chemical Society Vol.34 No.10
Convenient synthetic method for 4-arylethylpyrazoles and 4-styrylpyrazoles was developed using ${\alpha}$-alkenyl-${\alpha},{\beta}$-enones readily accessed from the Morita-Baylis-Hillman reaction. For the synthesis of 4-arylethylpyrazole, the reactions with arylhydrazines needed to be carried out in o-dichlorobenzene under $N_2$ balloon atmosphere. On the other hand, 4-styrylpyrazoles required the reactions in ethanol under $O_2$ balloon atmosphere.