Assessing the Limits in Kidney Transplantation: Use of Extremely Elderly Donors and Outcomes in Elderly Recipients.

Background: Patient survival with end-stage renal disease is longer after kidney transplantation (KT) compared with those remaining on dialysis. Nevertheless, this remains uncertain when receiving a kidney from a donor ≥80 years old.

Methods: In a longitudinal mortality study in the Catalan Renal Registry including 2585 patients ≥60 years old on dialysis and placed on the KT waiting list, 1084 received a first KT from a deceased donor aged 60 to 79 years and 128 from a deceased donor ≥80 years.

Survival Benefit From Kidney Transplantation Using Kidneys From Deceased Donors Aged ≥75 Years: A Time-Dependent Analysis.

Patients with end-stage renal disease have longer survival after kidney transplantation than they would by remaining on dialysis; however, outcome with kidneys from donors aged ≥75 years and the survival of recipients of these organs compared with their dialysis counterparts with the same probability of obtaining an organ is unknown. In a longitudinal mortality study, 2040 patients on dialysis were placed on a waiting list, and 389 of them received a first transplant from a deceased donor aged ≥75 years. The adjusted risk of death and survival were calculated by non-proportional hazards analysis with being transplanted as a time-dependent effect.

The effect of volumetric (3D) tactile symbols within inclusive tactile maps.

Point, linear and areal elements, which are two-dimensional and of a graphic nature, are the morphological elements employed when designing tactile maps and symbols for visually impaired users. However, beyond the two-dimensional domain, there is a fourth group of elements - volumetric elements - which mapmakers do not take sufficiently into account when it comes to designing tactile maps and symbols. This study analyses the effect of including volumetric, or 3D, symbols within a tactile map.

A paired survival analysis comparing hemodialysis and kidney transplantation from deceased elderly donors older than 65 years.

Background: Kidney transplantation from deceased donors aged 65 years or older is associated with suboptimal patient and graft survival. In large registries, survival is longer after kidney transplantation than when remaining on dialysis. However, whether recipients of these old grafts survive longer than their dialysis counterparts is unknown.