[Comparative immunological and morphological studies following transplantation of fresh and preserved allogeneic vein and artery segments in rat experiments].

Immunological and morphological investigations were carried out on immunogenetically different strain combinations of inbred rats following transplantation of fresh allogeneic and implantation of formalin preserved vein segments. In contrast to vital allogeneic transplants, which evoke an immunological response depending on immunogenetic difference between donor and recipient, there is neither humoral nor cellular immunological response after implantation of formalin fixed vein segments. Therefore, from an immunological standpoint, strongly allogeneic vein implants preserved by formalin can be used for replacement of arteries.