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One-Year Changes in Liver Stiffness Measurement, but Not in Alanine Aminotransferase and Controlled Attenuation
Grazia Pennisi1, Giuseppe Infantino1, Gabriele Di Maria1
1Section of Gastroenterology and Hepatology, Department of Health Promotion, Mother and Child Care, Internal Medicine, and Medical Specialties (PROMISE), University of Palermo, Palermo, Italy.
Background & Aims:
The availability of new drugs for the treatment of patients with metabolic dysfunction-associated steatotic liver disease (MASLD) underlines the need of early predictors of response to such therapies. This study evaluated the impact of 1-year changes in liver stiffness measurement (LSM) by vibration-controlled transient elastography (VCTE), controlled attenuation parameters (CAP), and serum alanine aminotransferase (ALT) on liver outcomes in patients with MASLD.
Methods:
A large multicenter cohort of MASLD patients with LSM ≥8 kPa and prospective follow-up was enrolled. Liver-related events (LREs), including hepatocellular carcinoma (HCC) and liver decompensation (LD), were evaluated during follow-up. LSM, CAP, ALT, and Fibrosis-4 Index (FIB-4) were assessed at baseline and at 1-year follow-up. Cause-specific Cox regression analyses were performed to correlate 1-year variation in LSM, CAP, ALT, and FIB-4 with the risk of developing LRE, LD, and HCC, in terms of cause-specific hazard ratios (csHRs).
Results:
We included 1744 patients with LSM ≥8 kPa (median age, 55 years; 52.1% male; 58.3% obese; 55.8% with diabetes) and 989 with LSM ≥10 kPa (median age, 56 years; 50.2% male; 54.7% obese; 51% with diabetes), followed for a median of 28.2 and 32 months, respectively. LREs occurred in 39 patients with LSM ≥8 kPa (26 LD, 22 HCC) and in 35 with LSM ≥10 kPa (25 LD, 19 HCC). A 1-year variation in LSM, but not in CAP, ALT, or FIB-4, was independently associated with LRE in patients with MASLD and LSM ≥8 kPa (csHR, 1.007; 95% confidence interval [CI], 1.001-1.014). Likewise, 1-year LSM variation (csHR, 1.009; 95% CI, 1.000-1.018) independently predicted LD in this population, whereas no 1-year changes in CAP, ALT, or FIB-4 were associated with LD risk. No independent associations were observed between 1-year changes in LSM, CAP, ALT, or FIB-4 and the risk of HCC. All findings were confirmed in patients with LSM ≥10 kPa and in those at high risk of progression with type 2 diabetes.
Conclusions:
In patients with MASLD and LSM ≥8 or ≥10 kPa, the % LSM reduction at 1 year was independently associated with lower risk of LRE and LD.
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