Body Mass Index: An Unreliable Adiposity Indicator for Predicting Outcomes of Liver Transplantation Due to Hepatocellular Carcinoma

Author:

Czarnecka Kinga1ORCID,Czarnecka Paulina1ORCID,Tronina Olga1ORCID,Bączkowska Teresa1ORCID,Durlik Magdalena1ORCID

Affiliation:

1. Department of Transplant Medicine, Immunology, Nephrology and Internal Diseases, Medical University of Warsaw, 59 Nowogrodzka Street, 02-006 Warsaw, Poland

Abstract

Obesity is a well-documented risk factor for the development of hepatocellular carcinoma (HCC) in the general population. The applicability of these findings to liver recipients is uncertain, and the results of available data have not been unanimous. The objective of the current study was to investigate the impact of the pre-operative body mass index (BMI) on oncological outcomes of liver transplantation due to HCC. Methods: This observational retrospective study enrolled all patients with histologically confirmed HCC who underwent liver transplantation from a deceased donor in our centre between 2008 and 2018. Results: Overall, 83 patients were enrolled and were subsequently stratified according to their pre-operative BMI into three groups: patients with normal body weight (n = 53), patients with overweight (n = 23), patients with obesity (n = 7). Overall tumour recurrence was 12%. BMI failed to predict the 5-year recurrence-free survival (p = 0.55), risk of tumour recurrence (p = 0.314) and overall 5-year survival (p = 0.19) in liver recipients. Conclusions: BMI was proven to be an unreliable surrogate measure of obesity for predicting oncological outcomes among liver recipients. Other obesity indices should be referenced to assess cancer-related prognosis more accurately in these groups of patients.

Publisher

MDPI AG

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