[Kidney preservation methods (author's transl)].

The results of preservation of the two kidneys of the same animal by two different techniques and then reimplanted on the same femoral artery, have been compared. The two methods are the following: 1) Short starting perfusion by Collins solution and than cold storage a 4 degrees C in the same solution. 2) Continuous perfusion by machine supplied by pulsatile pump, oxigenator, cooling. The first more impressive result by using continuous perfusion is the possibility of nullifying the effects of warm ischemia up to 30'. Kidney preservation with continuous perfusion is like to give less problems in the postoperatory period. Some weeks after transplantation however, the problems seems to increase in comparison with kidneys stored in Collins solution and not rarely sudden GFR decreases or anurias without immunologic rejection has been observed. Cautious conclusion should advise to use Collins solution when there has not been a long warm ischemia.