Both the study and the perfusion pump sound good. I thought that kidneys are generally transported on ice.
This study showed ice transport was not so bad:
https://www.hopkinsmedicine.org/news/media/releases/shipping_kidneys_for_transplant_is_safe_johns_hopkins_research_findsAt the same time, doctors had concerns about shipping kidneys. They worried that extending a kidney’s cold ischemic time — the time the donor organ was kept outside the body — would take away some of the benefits of getting a kidney from a live donor, Segev says.
So Hopkins researchers studied whether the length of time the kidney was kept viable on ice had any harmful effects on long-term graft survival. Their research found none.I think the not quite as good deceased donors kidneys is those which are "Donation After Cardiac Death (DCD)"
http://www.ucdmc.ucdavis.edu/transplant/nonlivingdonors/nonliving_after_cardiac.htmlOrgans recovered from a donor after cardiac death have some degree of oxygen deprivation during the time after the heart stops beating. This may make kidneys from this type of donor "slow to start".versus "Standard Criteria Donors (SCD) "
http://www.ucdmc.ucdavis.edu/transplant/nonlivingdonors/nonliving_std_criteria.htmlThe standard criteria donor (SCD) is a donor who is under 50 years of age and suffered brain death from any number of causes. This would include donors under the age of 50 who suffer from traumatic injuries or other medical problems such as a stroke.So a "brain dead donor" would still have the blood circulating and the lungs working which is better than the "donation after cardiac death" donor whose kidney looses blood flow prior to harvesting the organ. Thus the brain dead donor kidneys function better.
FYI this is a good story on the ethics of DCD:
http://www.nejm.org/doi/full/10.1056/NEJMp078066