A liver function test score identifies high-risk MASLD patients based on the pattern of liver enzymes

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Abstract

Background & Aims

A cholestatic pattern of liver enzymes is associated with progressive liver disease and major adverse liver-related outcomes (MALO) among patients with Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD). We aimed to authenticate the efficacy of a newly formulated liver function test (LFT) score for distinguishing patients with cholestatic vs. hepatocellular patterns and to evaluate its prognostic utility in MASLD patients.

Methods

A retrospective longitudinal study on a dataset of over 250,000 individuals diagnosed with MASLD and/or obesity with cardiovascular risk factors. Patients were categorized into cholestatic (C), mixed (M), or hepatocellular (H) patterns according to the LFT score, or the well-known R score. Long-term MALO, major adverse cardiovascular events (MACE), and all-cause mortality were tracked.

Results

The LFT score excelled in differentiating patients into C, M, or H groups accurately. While about two-thirds of our cohort initially showed a low FIB4 (<1.3), patients in the C category experienced a higher incidence of MALO and MACE compared to those in the H category (0.5% vs. 0.2% and 7.1% vs. 3.6%, respectively) over the span of 10 years post-diagnosis. Additionally, the 15-year overall survival rate was notably lower for C patients compared to their H counterparts (63% vs. 77%, p<0.0001). The LFT score was more effective than the R score in distinguishing between H and C patients for prognostic purposes, and a baseline cholestatic pattern indicates poorer outcomes regardless of subsequent LFT changes.

Conclusions

The LFT score accurately categorizes cholestatic MASLD patients and may serve as a useful prognostic tool.

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