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정인범 ( In Beom Jeong ),이태희 ( Tae Hee Lee ),임성민 ( Seong Min Lim ),류기현 ( Ki Hyun Ryu ),김용석 ( Yong Seok Kim ),김선문 ( Sun Moon Kim ),임의혁 ( Euyi Hyeog Im ),허규찬 ( Kyu Chan Huh ),최용우 ( Young Woo Choi ),강영우 ( Y 대한소화기학회 2011 대한소화기학회지 Vol.58 No.6
Background/Aims: The endoscopic findings and clinical relevance of portal hypertensive colopathy are not well described in Korea. We aimed to do a retrospective study of mucosal changes in the colon of patients with liver cirrhosis and to find their association with clinical characteristics. Methods: We reviewed the clinical data and endoscopic findings of 48 patients with liver cirrhosis and 48 patients, matched for age and sex, with irritable bowel disease (IBS) who underwent colonoscopy over a 5 year span. Results: Patients with liver cirrhosis were more likely to have colitis-like lesions and vascular abnormalities than IBS patients. Low platelet count (p=0.005) and severe esophageal varices (p=0.011) were associated with portal hypertensive colopathy, whereas the etiologies and severity of cirrhosis were not associated with these findings. Conclusions: Portal hypertensive colopathy can be defined with colitis-like lesions or vascular lesions. These lesions are more frequently present in patients with more severe esophageal varices and thrombocytopenia. (Korean J Gastroenterol 2011;58:332-337)
장태수 ( Tae Soo Jang ),정인범 ( In Beom Jeong ),조도연 ( Do Yeun Cho ),강성주 ( Sung Ju Kang ),권오정 ( Oh Jung Kwon ) 영남대학교 의과대학 2017 Yeungnam University Journal of Medicine Vol.34 No.2
Chylothorax or chylous ascites are rare manifestations of liver cirrhosis. We report a rare case of simultaneous chylothorax and chylous ascites in a patient with hepatitis B virus-related liver cirrhosis. A 76-year-old woman was referred to our hospital with a pleural effusion on her right side. She had no history of recent medical procedures, trauma or tumor. There was no evidence of mass or thoracic duct obstruction in a computed tomography scan. Pleural fluid and ascites were confirmed as chylothorax and chylous ascites by chemistry analysis. Despite thorough conservative care, there was no improvement. Pleurodesis was planned, but hepatic encephalopathy developed suddenly and she did not recover.
모의시험에 의한 정공주입층 재료 두께 변화에 따른 OLED의 전기적 특성에 미치는 영향
한현석(Hyun-Seok Han),최현민(Hyun-Min Choi),정인범(In-Beom Jeong),김원종(Weon-Jong Kim),류부형(Boo-Hyung Ryu),김태완(Tae-Wan Kim),홍진웅(Jin-Woong Hong) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
본 논문에서는 유기발광다이오드(OLED)의 전기적 특성을 개선하기 위하여 정공주입층(HIL) 재료의 두께 변화가 전기적 특성에 미치는 영향을 S. co의 모의시험 프로그램을 사용하여 연구하였다. 시료의 구성은 ITO/AF/TPD/Alq₃/BCP/LiF/Al로 제작하였고, 특히 HIL 재료인 Amorphous Fluoropolymer(AF)의 Highest Occupied Molecular Orbital(HOMO)와 Lowest Unoccupied Molecular Orbital(LUMO) 값을 여러 가지 분석법으로 찾아서 모의시험에 적용하였다. AF의 두께 변화에 따른 OLED의 전기적 특성의 최적 두께를 찾아서 이 값을 소자 설계에 적용한 결과 휘도는 2.5 배 증가되고, 외부양자효율도 2.1 배 증가됨을 확인하였다. 또한, HIL 재료의 표면 거칠기를 고려한 OLED의 전기적 · 광학적 특성에 대해 모의시험을 한 결과 실제 제작에서 얻은 data값과 유사함을 확인할 수 있었다. 따라서 OLED 제작에 따른 시간과 경제적 손실을 최소화할 수 있고, 새로운 소자 개발시 최적의 조건을 토대로 시료를 제작 해본다면 실제로도 보다 좋은 특성을 얻을 수 있을 것으로 사료된다.
이한나 ( Han Na Lee ),이태희 ( Tae Hee Lee ),류기현 ( Ki Hyun Ryu ),임성민 ( Sung Min Rim ),정인범 ( In Beom Jeong ),김용석 ( Yong Seok Kim ),최용우 ( Young Woo Choi ),강영우 ( Young Woo Kang ) 대한소화기학회 2012 대한소화기학회지 Vol.59 No.2
Splenic pseudocyst is a rare disease associated with chronic and acute pancreatitis splenic pseudocyst is treated by distal pancreatectomy and splenectomy. A 47-year old woman with a 10-year history of alcohol abuse presented with epigastric and left upper quadrant pain of 3 days duration. Abdominal CT showed a 4.0×4.5 cm sized cystic lesion in the tail of the pancreas, Analgesics was administrated for the relief of abdominal pain. On the 4th hospital day, the patient complained more of left upper quadrant pain, so we took follow up CT scans. On follow up CT, one large splenic pseudocyst with size of 9.5×4.5×10.0 cm was noted. The patient was treated conservatively by percutaneous catheter drainage and discharged on the 13th hospital day. This case is the first case report of splenic pseudocyst treated conservatively, not by surgery in Korea.