Graft weight integration in the early allograft dysfunction formula improves the prediction of early graft loss after liver transplantation - Scorecard - MDSpire
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Graft weight integration in the early allograft dysfunction formula improves the prediction of early graft loss after liver transplantation
Clinical Scorecard: Incorporating Graft Weight into Early Allograft Dysfunction Assessment Enhances Prediction of Initial Graft Failure Post-Liver Transplantation
At a Glance
Category
Detail
Condition
Early allograft dysfunction (EAD) after liver transplantation
Key Mechanisms
EAD defined by elevated AST/ALT >2000 IU/L within 1 week, bilirubin ≥10 mg/dL, or INR ≥1.6 on day 7; graft-to-recipient weight ratio (GRWR) affects perfusion and graft outcome
Target Population
Adult deceased donor liver transplant recipients excluding multi-organ, split, re-transplantation, machine perfusion, living donor, and pediatric cases
Care Setting
Liver transplant centers in Europe
Key Highlights
EAD is strongly associated with 90-day graft loss post-liver transplantation.
High graft weight and GRWR complicate perfusion and implantation, impacting graft survival.
A modified EAD model including GRWR improves prediction of 90-day graft survival.
Guideline-Based Recommendations
Diagnosis
Use Olthoff et al. criteria for EAD: AST/ALT >2000 IU/L within 7 days, bilirubin ≥10 mg/dL, or INR ≥1.6 on day 7 post-LT.
Management
Consider graft weight and GRWR in assessing graft function and risk stratification post-LT.
Exclude livers with >40% steatosis unless assessed by machine perfusion.
Monitoring & Follow-up
Daily serum aminotransferase measurements during the first postoperative week to identify T-peak.
Intraoperative Doppler ultrasonography to confirm vascular patency after graft implantation.
Risks
High GRWR (>2.13) increases risk of graft loss due to perfusion challenges and technical implantation difficulties.
Heavy livers may cause compression of adjacent structures affecting graft outcome.
Patient & Prescribing Data
Adult recipients of deceased donor liver transplants without multi-organ or living donor transplants.
Incorporating graft weight into EAD assessment enhances early prediction of graft failure, guiding post-transplant management.
Clinical Best Practices
Weigh grafts after removing non-hepatic tissues to accurately calculate GRWR.
Use estimated graft weight formulas when direct measurement is unavailable.
Perform baseline liver biopsies during procurement or backbench for steatosis evaluation.
Apply modified piggyback technique for liver implantation with individualized arterial anastomosis.
Exclude high steatosis grafts (>40%) unless machine perfusion assessment is performed.
by Tommaso Maria Manzia, Quirino Lai, Hermien Hartog, Virginia Aijtink, Marco Pellicciaro, Roberta Angelico, Carlo Gazia, Wojciech G. Polak, Massimo Rossi, Giuseppe Tisone
