Association Between Non-alcoholic Fatty Liver Disease and Progression of Abdominal Aortic Aneurysm: a Multicenter Study

Overview

Journal BMC Med Imaging

Publisher Biomed Central

Date 2025 Jan 20

PMID 39833711

Authors

Ximing Wang

Jingxiang Sun

Na Chang

Menghan Liu

Shuai Zhang

Affiliations

Soon will be listed here.

Abstract

Background: The purpose of our study was to investigate the association between non-alcoholic fatty liver disease (NAFLD) and abdominal aortic aneurysms (AAA) progression using non-enhanced computed tomography (CT) and CT angiography (CTA).

Methods: Patients with AAA and age- and sex-matched healthy subjects who underwent abdominal CTA and non-enhanced CT examination between January 2015 and January 2023 from four hospitals were retrospectively analyzed. Patients with AAA were divided into progression (growth rate > 10 mL/year) and non-progression groups, as well as those with NAFLD and without NAFLD, based on abdominal CT results. The Kaplan-Meier and Cox regression were used to investigate the association between NAFLD and AAA progression.

Results: A total of 151 patients with AAA (mean age: 69.1 ± 10.5 years old, 133 men) were included, among which 66 patients (43.7%) had NAFLD. During a median of 10.7 months (6.0-76.0 months), 57 patients (37.7%) had AAA progression. The prevalence of NAFLD was significantly higher in the AAA group compared to the control group (43.7% vs. 31.1%, p = 0.024). Multivariable regression analysis revealed that the NAFLD was independently associated with AAA progression (HR, 4.28; 95% CI, 2.20-8.31; p < 0.001). The area under curve of combined NAFLD and AAA maximal diameter was 0.857 for predicting AAA progression.

Conclusions: NAFLD on non-enhanced CT is an independent predictor of AAA progression. It can improve the diagnostic efficacy of predicting the progression of abdominal aortic aneurysms.

Clinical Trial Number: Not applicable. This research is a retrospective analysis.

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