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Regional variations in peer reviewed liver allocation under the MELD system
Hector Rodriguez-Luna1, Hugo E Vargas, Adyr Moss
1Transplantation Medicine, Mayo Clinic Hospital, Phoenix, Arizona, USA.
Summary
Regional variations in approving non-MELD exception requests for liver transplant priority highlight a need for standardized criteria. Approval rates for these critical MELD adjustments varied widely, impacting patient access to transplantation.
Area of Science:
- Hepatology
- Transplantation Medicine
- Health Services Research
Background:
- The Model for End-Stage Liver Disease (MELD) score is crucial for liver transplant candidate prioritization.
- Recognized Exceptional Diagnoses (REDs) allow MELD score adjustments, but non-RED requests address unlisted conditions.
- Existing policies may not accurately reflect transplant priority for all conditions.
Purpose of the Study:
- To compare regional practices in justifying and approving non-RED MELD adjustment requests.
- To identify variations in the application of exception criteria for liver transplant candidates.
- To provide data supporting the need for standardized exception policies.
Main Methods:
- Utilized the UNOS/OPTN database to extract adult cases with non-RED MELD adjustment requests (2/27/02 - 8/27/03).
- Stratified data by geographic region and justification for requests.
- Analyzed approval rates by regional review boards (RRBs) and patient demographics.
Main Results:
- Of 827 non-RED requests, 57.7% were approved, with significant regional variation in approval rates (28-75%, p<0.0001).
- Complications of portal hypertension were the most common reason for non-RED requests (48%).
- Significant regional disparities existed in the percentage of patients listed with non-REDs (0.7-8.3%) and transplanted with non-REDs (2.1-31.9%).
Conclusions:
- Widespread regional variations in handling non-RED MELD exception requests were observed.
- These inconsistencies suggest a need for policy reform to standardize exception criteria.
- Standardization is essential for equitable liver transplant candidate prioritization.