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I.H. Kim(김일한),S.W. Ha(하성환),C.I. park(박찬일),S.T. Kim(김수태) 대한방사선종양학회 1986 Radiation Oncology Journal Vol.4 No.1
1979년부터 1984년까지 이식신에 대하여 39회의 국소적 방사선조사가 서울대학교병원 치료방사선과에서 시행되었다. 10회는 예방적으로, 29회는 치료적으로 시행되었고 전체 환자 수는 29명이었다. 방사선조사는 1일 150cGy로 격일간 450cGy를 원칙으로 하였으며 methylprednisolone(Solumedrol)과 동시 병용되었다. 면역억제제로서 prednisone과 Imuran은 이식 후 계속 투여되었다. 방사선조사 시기는 예방목적일 경우에는 이식수술 후 1, 3, 5일에, 치료목적인 경우에는 거부반응의 진단 후 어느정도 시간간격을 두고 시행되었는데, 간격은 개인차이가 있었다. 10예의 예방적조사를 받은 이식신의 8예가 추후 거부반응이 출현하였으며, 이식 후 15개월 후에 기능적 생존을 보인 예는 없어서 예방적조사 효과는 회의적이었다. 치료목적으로 처음 조사받은 21예의 거부반응 회복율은 71%였고, 방사선조사 전 혈청 크레아티닌이 5.5mg%이하일 경우는 93%,; 5.5mg%이상일 경우는 17%였다(P<0.01). 극복이 안된 경우 재차 방사선조사에 대한 효과는 초회효과보다 열등하였다. 거부반응이 회복된 경우에 47%가 재차 거부반응이 출현하였다. 거부반응에 대한 처음 방사선조사 후 이식신의 기능적 생존율은 방사선조사 후 6개월, 1년, 2년 및 3년에 각각 70%,;65% 및 54%였고, 방사선조사 전 혈청 크레아티닌 수준, 거부반응 진단 후 방사선조사까지의 경과시간 및 방사선조사후의 반응 등이 이식신의 기능적 생존에 유의한 영향을 미침을 알 수 있었다(P<0.001). 따라서 방사선조사로 효과를 얻기 위하여는 거부반응으로 인한 이식신 파괴가 한계수준을 넘지 않는 범위 내에서 시행함이 필요함을 알 수 있었다. 이 효과는 Solumedrol과 병용된 결과이므로 방사선조사의 상대적 기여도를 밝히는 것은 어려웠다. From 1979 to 1984, 39 local allograft irradiations were given to 29 patients: 10 irradiations were administered for prevention and 29 for reversal of acute rejection of transplanted kidney. Three doses of 150 cGy every other day were combined with high-dose of methylprednisolone pulse (1 gm/day) for 3 days. For prevention of acute rejection, local irradiation was delivered on the days 1, 3, and 5 after the transplantation, and for reversal, irradiation started after the diagnosis of acute rejection. Eight out of 10 patients irradiated for prevention had acute allograft rejection, and, what is more, there was no surviving graft at 15 months after transplantation. Reversal of acute rejection was achieved in 71%. When the pre-irradiation level of serum creatinine was below 5.5mg%, the reversal rate was 93%, but above 5.5mg% the reversal rate was only 17% (p<0.01). Reirradiation after failure was not successful. Among 15 reversed patients, 7(47%) had subsequent rejection (s). The functional graft survivals at 6 month, 1, 2, and 3 year were 70%,;65%,; 54%,;and;54%, respectively. Therapeutic irradiation resulted in better graft survival when serum creatinine was below 5.5mg% (p<0.001) or when irradiation started within 15 days after the diagnosis of acute rejection (p<0.001).
김유일(Y.I. Kim),김귀순(K.S. Kim),김경천(K.C. Kim),하만영(M.Y. Ha),박호동(H.D. Park) 한국전산유체공학회 1995 한국전산유체공학회 학술대회논문집 Vol.1995 No.-
A computer code for solving the Reynolds averaged full Navier-Stokes equations has been developed for analysis of gas and steam turbine cascade flows with the option of using one of two types of turbulence model. One is the Baldwin-Lomax model and the other is standard k-ε model. The numerical integration is based on the explicit four stage Runge-Kutta scheme and finite volume method. To be verified, the resulting code is applied to VKI turbine cascade and compared with the previous experimental results. Finally, the flowfield around a steam turbine cascade is analyzed. Comparisons with experimental data show that present numerical scheme is an accurate Navier-Stokes solver and can give very good predictions for both gas and steam turbine cascade flow.
1999년도 한국 신생아외과 현황 -대한소아외과학회 회원대상 전국조사(제 2 차)-
김우기,김상윤,김신곤,김인구,김재천,김현학,박귀원,박우현,송영택,오수명,유수영,이두선,이명덕,이성철,이석구,서정민,정상영,정성은,정을삼,정풍만,Kim, W.K.,Kim, S.Y.,Kim, S.K.,Kim, I.K.,Kim, J.C.,Kim, H.H.,Park, K.W.,Park, W.H.,Song, Y.T.,Oh, S.M.,Yoo, Y.S.,Lee, D.S 대한소아외과학회 2001 소아외과 Vol.7 No.1
To understand the current status of neonatal surgery in Korea, a survey was made among the 36 members of the Korean Association of Pediatric Surgeons. The response rate was 75 % (26 surgeons in 20 hospitals). Five hundred fifty three neonatal surgical patients treated in 1999 were analyzed. Regional numbers of patients were closely related to the regional population in most areas. Ano-rectal malformations (17 %), pyloric stenosis (16 %), Hirschsprung's disease (13 %), atresia/stenosis of the gut (11 %), esophageal atresia (8 %) were the most common anomalies treated. The majority of operations were done within the first week of life. Seventy one per cent of cases were major life threatening or so-called neonatal index cases. Over-all mortality was 8 per cent. Higher mortality was observed in patients with diaphragmatic hernia (26 %), gastro-intestinal perforation (18 %), NEC (18 %), and esophageal atresia(14 %). Higher mortality was observed in patients with extremely low birth weight (33%) and low birth weight (18 %). Associated anomalies were observed in 20 %. Prenatal ultrasound was performed in 36 per cent with sensitivity of 20 %. Result of this study was compared to the previous report (1994) and that of Japan (1998).
대한소아외과학회 회원의 1995년도 진료현황 및 수련경력 설문조사
김우기,김상윤,김신곤,김인구,김재억,김종석,김현학,박귀원,박영식,박우현,박주섭,송영택,양정우,오수명,이두선,이명덕,이석구,이성철,장수일,정성은,정풍만,최금자,최순옥,허영수,황의호,Kim, W.K.,Kim, S.Y.,Kim, S.K.,Kim, I.K.,Kim, J.E.,Kim, C.S.,Kim, H.H.,Park, K.W.,Park, Y.S.,Park, W. 대한소아외과학회 1997 소아외과 Vol.3 No.1
To understand the current status of pediatric surgical practice of the members of the Korean Association of Pediatric Surgeons, a survey of the practice of the 31 members in both 1994 and 1995. Twenty five members(80%) representing 20 hospitals responded. An average of four hundred and seventy four cases pediatric surgical operations were performed at individual institution in 1995 with 40 newborn cases. Eighteen members(72%) are currently working at university hospital. Fourteen institutions(70%) are currently classified as tertiary by the health insurance agency. The majority(15 to 60%) of members are working in the metropolitan Seoul area, while five in Taegu area. Sixteen members reported having the title of department head/director. Four members reported occasional non-pediatric surgical practice. Nine members out of 20 reported having independent pediatric surgical out-patient clinic before the establishment of the association(1985). Eight out of 15 members reported being appointed chief of pediatric surgery before 1985. In 20 institutions, 34 full time physicians(27 members, reportedly) are working in pediatric surgery. In regarding to pediatric surgical training, 16 members(64%) received an average of 16 months of training abroad, 5 members trained at home and abroad, and 4 from only at home. There are no differences in length of training periods in these groups. Twenty one members received their basic pediatric surgical training before 1985, the year of inauguration of the association. Twelve members received post-pediatric surgery refresher courses averaging 11 months' duration, after 2-11 years. Thirteen participants of this study belongs to the founding members of the association.