Liver transplantation
Outcome
The Incidence and Management of Acute and Chronic Rejection After Living Donor Liver Transplantation

https://doi.org/10.1016/j.transproceed.2006.02.108Get rights and content

Abstract

Living donor liver transplantation (LDLT) is a good alternative to cadaveric liver transplantation for end-stage liver disease. Herein we report the outcome of 132 LDLTs performed between 1999 and 2005, with special emphasis on the incidence and management of acute and chronic rejection. Among the LDLT population a first acute rejection episode (ARE) was clinically suspected in 24% and proven by liver biopsy in 11%. According to the Banff classification, 50% of AREs were grade 1, and 50%, grade 2. There was no grade 3 AREs. The first ARE occurred between 7 days and 23 months posttransplantation (mean 97 days, median 70 days). Ninety-seven percent (31/32) of the AREs occurred within the first year after transplantation and 3% (1/32) in the second year. Among the patients with ARE, 23% developed a second ARE between 4 and 11 months. A third ARE was detected in 8% of patients after month 18. All AREs responded to adjustment of immunosuppressive doses or steroid boluses. Chronic rejection (CR) was detected in 2%. In conclusion, the incidences of ARE and CR are consistent with the previously reported data. Acute and chronic rejections seem to be mild and easily manageable clinical conditions. Our results also showed a significant difference between clinically suspected and biopsy-proven ARE emphasizing the importance of indicated liver biopsies in the management of the LDLT population.

Section snippets

Materials and methods

The 132 primary liver allograft recipients underwent LDLT between January 1999 and May 2004. We excluded patients who died in early posttransplant period (during the first months). All patients were followed until April 2005. They were evaluated monthly over the first 12 months, and every 3 months thereafter. The standard evaluation included a physical examination, liver function tests, and serological viral tests when necessary. Liver biopsies were performed when clinically indicated.

Liver

Donor and Recipient Characteristics

The study group consisted of 90 male and 42 female recipients of mean recipient age at the time of transplantation 36 years (range = 0.5 to 63; median 41.50). There were 25 pediatric and 107 adult cases. The causes of end-stage liver disease are shown in Table 1.

The donor was blood related in all but 13 cases. There were 81 female and 51 male donors with a mean age of 35 years (range: 19 to 64). There was no ABO-incompatible graft. The source of the graft was the right lobe in 103 patients;

Discussion

In this study we sought to document the incidence, severity, and outcome of acute and chronic rejection by evaluation of histological and clinical data. In this series of 132 LDLT recipients, clinical and biopsy-proven AREs were detected in 24% and 11% of patients, respectively. Sixteen percent of the pediatric and 11% of the adult recipients developed at least one ARE.

Among the pediatric LDLT series the overall incidence of ARE has been reported to be between 61% and 74%, whereas the rate was

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