Survival Benefit of Liver Transplantation for Hepatocellular Carcinoma

Mounika Kanneganti1, Nadim Mahmud2, David E Kaplan2,3

  • 1Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.

Transplantation
|July 9, 2019
PubMed

Insights

Liver transplantation (LT) offers survival benefits for liver cancer (HCC) but the incremental gain over resection or ablation is small long-term. Careful patient selection for LT is crucial for this scarce resource.

Area of Science:

  • Hepatology
  • Surgical Oncology
  • Transplant Medicine

Background:

  • Hepatocellular carcinoma (HCC) accounts for nearly 30% of liver transplants (LT) in the US.
  • While LT offers the highest long-term survival, data comparing its incremental benefit against resection or ablation are limited due to patient selection biases.
  • Understanding the comparative survival outcomes is essential for optimizing treatment strategies for HCC.

Purpose of the Study:

  • To compare the survival benefit of liver transplantation (LT) versus resection or ablation in patients with cirrhosis and HCC.
  • To quantify the incremental survival advantage of LT over other curative treatments in a real-world veteran population.
  • To inform patient selection for LT to maximize the utility of this scarce resource.

Main Methods:

  • Retrospective cohort study of 2129 veterans aged 50-69 with cirrhosis and HCC (Model for End-Stage Liver Disease score <15) from 2008-2016.
  • Analysis included patients who received LT, resection, or ablation.
  • Multivariable models and sensitivity analyses were used to assess survival outcomes and account for potential biases.

Main Results:

  • Patients undergoing resection or ablation had significantly higher hazards of death compared to LT.
  • The absolute incremental survival benefit of LT over resection or ablation was modest, ranging from 1.04-1.24 years at 5-year follow-up.
  • Sensitivity analyses confirmed these findings, including in a cohort with early/intermediate stage HCC.

Conclusions:

  • Liver transplantation (LT) is associated with significantly improved survival compared to resection and ablation for HCC.
  • However, the absolute incremental survival benefit of LT is small over a 5-year period.
  • Optimizing patient selection for LT is critical to effectively utilize this limited and valuable resource.
Abstract

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