Donorship system at which the donor-altruist gives the organ or its part to the stranger, and friends or a family of the recipient give similar to bank of donor organs, is called as cascade.

Usually, people who wish to give the organ to the friend or a member of a family are involved in a cascade donorship, but have with it histological incompatibility. When they give the organ to another's person, native that person still to someone and so on, the probability of increases that in a chain the organ will be received approaching for their transplantation close.
The similar system is applicable in a situation with a donorship of kidneys, and, by words, researchers from Alliance for Paired Donation, the USA, she allows to salvage larger number of the doomed patients. The co-ordinator of research Dr. Michael Rees specifies, that in the conditions of America the mechanism of a cascade donorship can provide with necessary organs nearby 3 000 persons.

Researchers have noticed, that the probability to receive the consent of the person to become the cascade donor is even after carrying out of its transplantation to the close. Transplantation of a kidney and the subsequent maintenance of the patient in the USA manages in 300 000 dollars for 10 years. It on a half-million of dollars is less than cost of carrying out within 10 years of a hemodialysis.