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간경변 환자에서 식도정맥류결찰술 유발 궤양 출혈에 대한 시아노아크릴레이트 주입 후 유발된 식도 공동 형성
김은경 ( Eun Kyoung Kim ),손주현 ( Joo Hyun Sohn ),김태엽 ( Tae Yeob Kim ),김배근 ( Bae Keun Kim ),유연화 ( Yeon Hwa Yu ),은창수 ( Chang Soo Eun ),전용철 ( Yong Cheol Jeon ),한동수 ( Dong Soo Han ) 대한소화기학회 2011 대한소화기학회지 Vol.57 No.3
Intravariceal injection of N-butyl-2-cyanoacrylate is widely used for the hemostasis of bleeding gastric varices, but not routinely for esophageal variceal hemorrhage because of various complications such as pyrexia, bacteremia, deep ulceration, and pulmonary embolization. We report a rare case of esophageal sinus formation after cyanoacrylate obliteration therapy for uncontrolled bleeding from post-endoscopic variceal ligation (EVL) ulcer. A 50-year-old man with alcoholic liver cirrhosis presented with hematemesis. Emergent esophagogastroscopy revealed bleeding from large esophageal varices with ruptured erosion, and bleeding was initially controlled by EVL, but rebleeding from the post-EVL ulcer occurred at 17th day later. Although we tried again EVL and the injections of 5% ethanolamine oleate at paraesophageal varices, bleeding was not controlled. Therefore, we administered 1 mL cyanoacrylate diluted with lipiodol and bleeding was controlled. Three months after the endoscopic therapy, follow-up endoscopy showed medium to large-sized esophageal varices and sinus at lower esophagus. Barium esophagography revealed an outpouching in esophageal wall and endoscopic ultrasonography demonstrated an ostium with sinus. It is noteworthy that esophageal sinus can be developed as a rare late complication of endoscopic cyanoacrylate obliteration therapy. (Korean J Gastroenterol 2011;57:180-183)
불포화 폴리에스테르 모르터로 사용하기 위한 퇴적암의 품질평가에 관한 실험연구
배근철,박준호,박준철,최영준,김화중,김영수 대한건축학회 2001 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.21 No.2
The purpose of this study is to investigate quality evaluation of Shale to apply for unsaturated polyester mortar as crushed sand. In general, the Shale is not used as the aggregate for concrete because of the chemical unstability. Therefore. it is needed to chemical treatments or applications of a high molecular substance. In this study, Black Shale(BS). Red Shale(RS), Gray Shale(GS) is compared with river sand for the characteristics of qualities and strength. The result of study is as follows. It is possible that crushed sand could be used as fine aggregate of UPE mortar as quality for crushed sand is proper to the KS standard. The strength of UPE mortar used crushed sand as aggregate is higher than that of river sand.
부순모래의 종류에 따른 불포화 폴리에스테르 모르터의 강도 및 파괴인성에 관한 실험연구
박준호,배근철,박준철,최영준,김화중,김영수 대한건축학회 2001 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.21 No.2
The purpose of this study is to investigate the properties of unsaturated polyester mortar according to kinds of crushed sand. we analyzed the properties of strength and fracture of UPE mortar using crushed sands (Which are made from granite, sedimentary rock and recycled concrete in laboratory and are being used by corporation) and river sands. From the experimental results, the strengths and the fracture energy of UPE mortar using crushed sand are higher than those using river sand in the same fineness modulus except recycled concrete.