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박상환(Sang-Hwan Park),윤성수(Sung-Su Yun),이동식(Dong-Shik Lee),김홍진(Hong-Jin Kim),최준혁(Joon-Hyuk Choi),김종연(Jong-Yeon Kim) 대한외과학회 2007 Annals of Surgical Treatment and Research(ASRT) Vol.73 No.1
Purpose: Liver cell damage after ischemia and reperfusion injury has been a major cause of death after liver surgery. Yet there have been no exact and practical guidelines for assessing liver cell damage after ischemia and reperfusion injury. The aim of this study was to estimate the liver cell viability after ischemia and reperfusion injury. Methods: A 70% partial liver occlusion model with employing Spraque Dawley Rats was used. The ATP content of the liver tissue, the palmitic acid metabolic rate and the histologic change (H/E, TUNEL stain) were all measured at 30 minute intervals to assess liver cell viability during 120 minutes of ischemia. At 24 hours reperfusion after 30, 60 and 120 minutes ischemia, the same parameters and the AST/ALT level in the blood were measured. Results: The ATP content was decreased below 20% compared to normal liver after ischemia, but there were no significant changes in the histology and the palmitic acid metabolic rate during 120 minutes ischemia. At 24 hours reperfusion after 30, 60 and 120 minutes ischemia, the ATP content was decreased to around 50% in all the groups and the palmitic acid metabolic rate was decreased 90.9±2.4%, 80.0±5.3% and 79.1±7.7%, respectively, compared to the control liver. But histologic change was not as great as the change in the ATP content and the palmitic acid metabolic rate. Conclusion: Judging by these results, liver has relatively good tolerance during ischemia, but after reperfusion, the liver showed damage depending on the duration of ischemia. This study might be very helpful as a guide line of liver damage after ischemia and reperfusion in both clinical practice and basic research.
허영수,강수환,윤성수,Huh, Young-Soo,Kang, Su-Hwan,Yun, Sung-Su 대한소아외과학회 1999 소아외과 Vol.5 No.2
Splenic cysts are uncommon and classified as either primary(true) or secondary(pseudo-) depending on the presence or absence of a true epithelial lining. True cysts (epidermoid cyst) of the spleen are very rare. Three cases of splenic cysts in childhood were treated at the Yeungnam University Hospital in the last eleven years(1989-1999). Two of patients were girls. The ages at diagnosis were 7, 12 and 15 years. Abdominal ultrasonography and computerized tomography were utilized for the diagnosis. Radionuclide scanning was performed in one patient. Surgical resection(one partial splenectomy and two total splenectomies) was performed. The sizes of cysts were 4, 6.5 and gem in maximum demension.