Scientific publications

De Novo neoplasia after liver transplantation: an analysis of risk factors and influence on survival

Herrero JI, Lorenzo M, Quiroga J [SP], Sangro B, Pardo F, Rotellar F, Alvarez-Cienfuegos J, Prieto J.
Liver Unit, Clínica Universitaria, Av. Pio XII, 36 31008 Pamplona, Spain

Magazine: Liver Transplantation

Date: Jan 1, 2005

General and Digestive Surgery Hepatology

Immunosuppression increases the risk of posttransplant malignancy and it may increase posttransplant mortality. The finding of factors related to the development of posttransplant malignancy may serve as a guide to avoid those risk factors and to develop strategies of posttransplant surveillance.

The incidence and risk factors of malignancy were studied in 187 consecutive liver transplant recipients surviving more than 3 months. None of the 12 patients surviving less than 3 months had de novo neoplasia. The impact of malignancy on survival was studied in a case-control study. After a median follow-up of 65 months, 49 patients developed 63 malignancies: 25 patients had 35 cutaneous neoplasias and 27 patients had 28 noncutaneous malignancies. The 5- and 10-year actuarial rates of cutaneous neoplasia were 14 and 24% and the rates of noncutaneous neoplasia were 11 and 22%, respectively. Risk factors for the development of cutaneous malignancy were older age and Child-Turcotte-Pugh A status.

Risk factors for the development of noncutaneous malignancy were older age, alcoholism, and smoking. Cutaneous neoplasia had no effect on survival, whereas patients with noncutaneous malignancy had a significant reduction of survival. The overall relative risk of cutaneous and noncutaneous neoplasia, as compared with the general population were 16.91 (95% confidence interval: 11.78-23.51) and 3.23 (95% confidence interval: 2.15-4.67), respectively. The relative risk of cancer-related mortality (after excluding recurrent malignancy) was 2.93 (95% confidence interval: 1.56-5.02). Multivariate analysis showed that noncutaneous malignancy was an independent risk factor for posttransplant mortality.

In conclusion, liver transplant recipients have a higher risk of cancer-related mortality than the general population. This increased risk is due to the development of noncutaneous neoplasia. Older age, alcoholism, and smoking increase the risk of de novo noncutaneous neoplasia.

CITATION  Liver Transpl. 2005 Jan;11(1):89-97



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