Impact of Perioperative Organ Resuscitation of Brain-dead Deceased Organ Donor on Kidney Graft Function in the Recipient

Inclusion Criteria: The inclusion criteria for organ donor patients are as follows: * Adult patient * Brain dead * Hospitalized in surgical intensive care at Strasbourg University Hospital (NHC cardiovascular intensive care unit, NHC multi-purpose intensive care unit, Hautepierre surgical intensive care unit) from January 1, 2018 to December 31, 2023 * Having undergone multi-organ transplantation * At least one of the donor kidneys has been transplanted to a patient at Strasbourg University Hospital * Absence of written objection in the medical file of the subject (and/or their legal representative, if applicable) to the reuse of their data for scientific research purposes. The inclusion criteria for kidney transplant recipients are as follows: * Adult patient * Recipient of a kidney transplant from an organ donor who meets the inclusion criteria for donor patients mentioned above * Patient who has undergone surgery and is hospitalized post-operatively at Strasbourg University Hospital * Patient monitored by the Strasbourg University Hospital transplant team * Absence of written objection in the subject's medical file (and/or their legal representative, if applicable) to the reuse of their data for scientific research purposes. Exclusion Criteria: * Subject (and/or their legal representative, if applicable) who has expressed their opposition to the reuse of their data for scientific research purposes * Brain-dead patient who has not undergone organ retrieval * Brain-dead patient whose kidney has not been allocated to a recipient in Strasbourg * Patient transferred to the Strasbourg University Hospital's intensive care unit from another hospital in a state of already diagnosed brain death solely for organ retrieval * Kidney transplant patient with a graft from a living donor * Kidney transplant patient with a graft from a deceased donor who is not brain-dead * Kidney transplant patient with a graft from a deceased donor who is brain-dead and hospitalized in a hospital other than Strasbourg