Liver transplantation in hepatocellular carcinoma

Younger age and presence of macrovascular invasion were independent significant factors associated with poor disease-free survival in hepatocellular carcinoma patients undergoing living donor liver transplantation

OBJECTIVE

Patients with hepatocellular carcinoma (HCC) exceeding the University of California, San Francisco (UCSF) criteria are normally rejected for cadaveric liver transplants. However, whether they should be allowed to undergo living donor liver transplantation (LDLT) has been controversial. We reviewed the outcome of patients with advanced HCC who underwent LDLT at our center.

METHODS

From April 2002 to May 2011, 176 patients underwent LDLT at our center; of these, 77 (44%) had HCC at the explant liver. Patient overall survival and recurrence-free survival (RFS) was analyzed using Kaplan-Meier method. Multivariate analysis was performed by Cox analysis.

RESULTS

Age was 56±1 (56, 29-71) years; 62 (80.5%) were male; Model for End-stage Liver Disease Score was 11±1 (9, 6-36), alpha fetoprotein (AFP) was 3683±2019 (69, 3-139,591) ng/L; maximum tumor size was 4.5 (0.5-15) cm. Number or tumor nodules was 5 (1-10), and 32 (42%) had macrovascular invasion diagnosed pretransplant. Eleven (14%) were within UCSF criteria. After follow-up of 953±90 (744, 2-2989) days, 53 (69%) were alive and 48 (62%) were recurrence-free. One-, 3- and 5-year overall survival (OS) and recurrence-free survival (RFS) were 80%, 70%, and 57% and 80%, 65%, and 48%, respectively. Five-year OS and RFS for those within UCSF criteria were both 78% versus 55% and 46% outside UCSF criteria (P=not significant). At multivariate analysis, high AFP, younger age, and macrovascular invasion were associated with both poor RFS.

CONCLUSION

In HCC patients exceeding UCSF criteria, a reasonable 5-year overall survival of 55% post-LDLT can be obtained. Patients with HCC exceeding the UCSF criteria, especially in the older age group with no portal vein invasion and lower AFP level, should be actively considered for LDLT.

The outcome of liver transplantation in patients with hepatocellular carcinoma in the United States between 1988 and 2001: 5-year survival has improved significantly with time

PURPOSE

We hypothesized that the outcome of liver transplantation in patients with hepatocellular carcinoma (HCC) has improved over the past decade because of the application of published criteria for patient selection. In this study, we compared the outcome of liver transplantation in patients with and without HCC at different time periods using the United Network for Organ Sharing data.

PATIENTS AND METHODS

We excluded children, patients with multiple organ transplantation or retransplantation, and those with incomplete survival data. The study period was arbitrarily divided into three time intervals: 1987 to 1991, 1992 to 1996, and 1997 to 2001.

RESULTS

During the study period, 985 patients with HCC (HCC group), and 33,339 without HCC underwent liver transplantation (control group). Kaplan-Meier patient and graft survivals were significantly lower for the HCC group compared with the control group. Cox regression analysis (after adjusting for other confounding variables) confirmed a lower patient survival in the HCC group (1-year survival, 77.0% v 86.7%; hazard ratio [HR], 1.7; 95% CI, 1.5 to 2.0; P <.0001) compared with the control group (5-year survival, 48.2% v 74.7%; HR, 2.2; 95% CI, 1.9 to 2.4; P <.0001); HCC was an independent predictor of survival. Kaplan-Meier analysis showed a significant improvement in 5-year patient survival with time in patients with HCC (1987 to 1991, 25.3%; 1992 to 1996, 46.6%; 1997 to 2001, 61.1%; P <.0001). During the same period, there was only minimal improvement in survival among the control group.

CONCLUSION

Five-year survival of patients transplanted for HCC is excellent, with a steady improvement in survival over the past decade. It is possible that the published criteria for patient selection may have contributed to the better outcome.

Role of liver transplantation in the management of hepatocellular carcinoma

The treatment options for hepatocellular carcinoma (HCC) are liver resection, liver transplantation, or local ablation (e.g., percutaneous ethanol injection, cryosurgery, radio-frequency ablation, and chemoembolization). Most patients are not eligible for curative resection because of the location of the tumor or the severity of liver disease. For many of these patients, liver transplantation remains the best curative option. Because of the shortage of donor organs, much of the recent effort has been aimed at patient selection. In this review, the authors address outcomes after liver transplantation for HCC, the role of selection criteria as a predictor of mortality and recurrence, and the emerging role of living donor liver transplantation and chemoembolization.