Heterotopic Heart Transplantation in the Rat Model

쥐모델에서의 이소성의 심장이식

  • Chung, Won-Sang (Department of Thoracic and Cardiovascular Surgery, Hanyang University Hospital) ;
  • Jeon, Yang-Bin (Department of Thoracic and Cardiovascular Surgery, Hanyang University Hospital) ;
  • Chun, Soon-Ho (Department of Thoracic and Cardiovascular Surgery, Hanyang University Hospital) ;
  • Kim, Hyuk (Department of Thoracic and Cardiovascular Surgery, Hanyang University Hospital) ;
  • Lee, Chul-Burm (Department of Thoracic and Cardiovascular Surgery, Hanyang University Hospital) ;
  • Kim, Young-Hak (Department of Anesthesiology, Hanyang University Hospital) ;
  • Jee, Heng-Ok (Department of Thoracic and Cardiovascular Surgery, Hanyang University Hospital) ;
  • Seo, Jung-Kuk (Department of Anesthesiology, Hanyang University Hospital) ;
  • Kong, Gu (Department of pathology, Hanyang University Hospital)
  • 정원상 (한양대학교병원 흉부외과학교실) ;
  • 전양빈 (한양대학교병원 흉부외과학교실) ;
  • 전순호 (한양대학교병원 흉부외과학교실) ;
  • 김혁 (한양대학교병원 흉부외과학교실) ;
  • 이철범 (한양대학교병원 흉부외과학교실) ;
  • 김영학 (한양대학교 마취과학교실) ;
  • 지행옥 (한양대학교병원 흉부외과학교실) ;
  • 서정국 (한양대학교 마취과학교실) ;
  • 공구 (한양대학교병원 조직병리학교실)
  • Published : 1998.05.01

Abstract

In 1964, Abbott and Colleagues published the world's first heterotopic heart transplantation technique in the rat. Their method established circulation by end-to-end anastomoses of the graft's aorta and pulmonary artery to the recipient's abdominal aorta and Inferior Vena Cava(IVC), respectively. In 1966, Tomita et al altered Abbott's technique by employing end-to-side rather than end-to-end anastomoses, thus eliminating the hind leg paralysis that sometimes resulted from Abbott's technique. In order to prevent postsuture hemorrhage (since 7-0 silk suture was the finest available at that time), Tomita's aortic anastomosis was done with double up-and-down continuous suture technique. A single layer continuous anstomosis effected the pulmonary artery-IVC anastomosis. The availability of Nylon monofilament suture made it possible for Ono and Lindsey to use a single layer suture technique for the aortic end-to-side anastomosis in their modified rat heart transplantation. We observed survival time between control group and Immunosuppression(Cyclosporine administration, 10mg/Kg${\times}$4 times postoperatively) group after heterotopic heart transplantation in the rat model. The cyclosporine adminstration group survived longer than the control group, thus we concluded that cyclosporine was based on Immunosuppressive drugs.

국내에서 심장, 폐이식이 각 대학병원에서 점차 확산 시행되고는 있으나, 이에 따른 기초실험이 뒷받침되지 않고, 큰 동물에서는 많은 실험비용이 들어 보다 적은 동물을 이용하게 되었으나 이 방법은 현미경하의 미세수술기법의 발달과 더불어 발전하게 되었다. 본 연구는 현미경하의 미세수술기법으로 쥐모델에서 복부의 대동맥과 하공정맥에 다른 쥐의 공여심장의 대동맥과 폐동맥을 각각 문합술로 연결하는 방법으로 이식하여 동종이형의 장기이식에 따른 거부반응과 면역억제제를 투여하여 그에 따른 생존율을 비교하고자 하였다. 체중 150∼250 gm의 흰쥐의 심장을 공여 및 이식하는 바, 이소성의 심장이식후 면역억제제를 투여하지 않은 군과 면역억제제를 투여한 군으로 나누고, 각 군에서 복부에 이식된 심장의 박동을 매일 만져보고서 만져지지 않을 경우는 이식된 심장이 거부반응에 따른 것으로 판단하여 이의 생존율을 비교 검토하여본 바, 면역억제제를 투여하지 않은 군에서보다 투여한 군에서 오래 생존하여 동종이형의 이식에서 면역억제제를 투여하므로써 장기이식에 따른 장기성적을 향상시킴을 알 수 있었다.

Keywords

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