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. 2022 Mar 1;117(3):433-444.
doi: 10.14309/ajg.0000000000001591.

Portrait of Regional Trends in Liver Transplantation for Nonalcoholic Steatohepatitis in the United States

Liyun Yuan  1   2 , Courtney L Hanlon  1 , Norah Terrault  1   2 , Saleh Alqahtani  3 , Hani Tamim  4 , Michelle Lai  5 , Behnam Saberi  5
Affiliations

Portrait of Regional Trends in Liver Transplantation for Nonalcoholic Steatohepatitis in the United States

Liyun Yuan et al. Am J Gastroenterol. .

Abstract

Introduction: Nonalcoholic steatohepatitis (NASH) is one of the most common etiologies of liver transplantation (LT) in the United States. We investigated regional trends in waitlist candidates, LT rates, and recipient survival among patients with NASH.

Methods: Using the United Network for Organ Sharing database by Organ Procurement and Transplantation Network regions, we investigated waitlist registration, LT rates, and survival for NASH between January 2004 and December 2019.

Results: The absolute number and percentage of total LT performed for NASH increased substantially in all Organ Procurement and Transplantation Network regions. In 2019, region 11 had the highest percentage of NASH-related LT with 31.4% followed by region 10 (25.3%) and region 8 (23.1%). Between 2015 and 2019, region 5 had the highest rising percentage in LT for NASH at 208%, followed by region 1 (194%) and region 4 (183%). The proportion of NASH hepatocellular carcinoma (NASH-HCC) was the highest in region 9 at 37.7% and lowest in region 10 (19.2%), region 3 (20.6%), and region 11 (20.8%). In multivariate analysis, diabetes (HR 1.18, P < 0.001), dialysis before LT (hazard ratio [HR] 1.53, P < 0.001), HCC (HR 1.19, P < 0.00), portal vein thrombosis (HR 1.24, P < 0.001), donor age (HR 1.026, P = 0.03), and recipient age (HR 1.24, P = <0.001) were associated with worse survival.

Discussion: LT for patients with NASH has dramatically increased across all regions since 2004, but with substantial heterogeneity among regions in the proportion with HCC and post-LT survival. Identifying contributing factors to these regional differences is warranted.

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