IMPORTANCE The field of transplantation has made tremendous progress since the first successful kidney transplant in 1954. OBJECTIVE To determine the survival benefit of solid-organ transplant as recorded during a 25-year study period in the United Network for Organ Sharing (UNOS) database and the Social Security Administration Death Master File. DESIGN, SETTING, AND PARTICIPANTS In this re...

Supply Chain Operations Reference (SCOR) model is developed and maintained by the Supply Chain Council (SCC). The model is a reference model which can be utilized to map benchmark and improve the supply chain operations. SCOR model provides companies with a basic process modeling tool, an extensive benchmark database by defining a set of supply chain metrics. This paper explains the process and...

Background & Aims: At present due to brain dead patients’ families refuse to organ donation, the number of available organs is less than the requesting cases. The aim of this comparative descriptive study was to compare opinions of donor and nondonor families about relevant factors in their decision making. Methods: participants included 175 members of 71 families (141 members of 56 donor famil...

T paper develops and analyzes a queueing model to examine the role of patient choice on the high rate of organ refusals in the kidney transplant waiting system. The model is an M/M/1 queue with homogeneous patients and exponential reneging. Patients join the waiting system and organ transplants are reflected by the service process. In addition, unlike the standard M/M/1 model, each service inst...

Since the first kidney transplant was performed over fifty years ago, it has offered the chance of life and the freedom from dialysis for thousands of people. However, demand for organs has always exceeded supply. The gap between the two is widening due to increased prevalence of diseases common to a 'western' lifestyle such as diabetes and hypertension, leading to more chronic kidney disease a...

Renal transplantation is considered one of the best long-term therapies for chronic renal failure, but unfortunately the incidence of malignancy significantly increases in renal transplant recipients. We analyzed nine cases of malignancy in 200 renal transplant recipients occurring in a 12-year follow-up in Imam hospital of Tehran University, Tehran, Iran. According to this study, the organ...