Mathematical Models and Behavior: Assessing Delta MELD for Liver Allocation

MELD and PELD: application of survival models to liver allocation.

In 1998, the Department of Health and Human Services (DHHS) issued the final rule,1 in which the principles of organ allocation were defined, to govern the operation of the Organ Procurement and Transplant Network (OPTN). This rule included the following guidelines for organ allocation: (1) organs should be allocated to transplant candidates in the order of medical urgency; (2) the role of wait...

MELD-based liver allocation: who is underserved?

Deceased-donor livers are a scarce, lifesaving resource. For patients whose lives depend upon liver transplantation, policies for prioritizing allograft allocation are of ultimate importance. In the current paradigm, donor livers are allocated on the basis of medical urgency. Thus, the onus is on the transplant community to refine the allocation system continuously so that livers are targeted t...

MELD-based allocation scheme for liver transplantation in Israel.

Liver transplantation: expectation with MELD score for liver allocation in Brazil.

Liver transplantation represents the most effective therapy for patients suffering from chronic end-stage liver disease. Until very recently, in Brazil, liver allocation was based on the Child-Turcotte-Pugh score and the waiting list followed a chronological criterion. In February 2002 the Model for End-stage Liver Disease (MELD) score was adopted for the allocation of donor livers in the US. A...

Allocation models for DMUs with negative data

The formulas of cost and allocative efficiencies of decision making units (DMUs) with positive data cannot be used for DMUs with negative data. On the other hand, these formulas are needed to analyze the productivity and performance of DMUs with negative data. To this end, this study introduces the cost and allocative efficiencies of DMUs with negative data and demonstrates that the introduc...