Vibration-controlled transient elastography in pediatric metabolic dysfunction-associated steatotic liver disease
Lauren B Nichols1,2, Sebastian G J Oakes1,3, Cynthia Behling1
1Department of Pediatrics, Division of Gastroenterology, Hepatology, and Nutrition, University of California San Diego School of Medicine, La Jolla, California, USA.
Vibration-controlled transient elastography (VCTE) showed limited accuracy in assessing steatosis and fibrosis in pediatric metabolic dysfunction-associated steatotic liver disease (MASLD). New noninvasive methods are needed for better evaluation and monitoring of this condition in children.
Area of Science:
- Pediatric gastroenterology and hepatology
- Noninvasive liver disease assessment
- Metabolic dysfunction-associated steatotic liver disease (MASLD) research
Background:
- Metabolic dysfunction-associated steatotic liver disease (MASLD) is increasingly common in children.
- Liver biopsy is invasive; noninvasive methods like vibration-controlled transient elastography (VCTE) are sought for pediatric MASLD evaluation.
- Limited pediatric data exists validating VCTE parameters like controlled attenuation parameter (CAP) and liver stiffness measurement (LSM) against histology.
Purpose of the Study:
- To prospectively evaluate the accuracy of VCTE, specifically CAP and LSM, in assessing steatosis and fibrosis in children with MASLD.
- To compare VCTE-derived metrics with histological findings in a pediatric cohort.
- To determine the diagnostic performance of LSM for fibrosis staging in pediatric MASLD.
Main Methods:
- Prospective, multicenter study involving 92 children with histologically confirmed MASLD.
- VCTE (CAP and LSM) was performed within six months of liver biopsy.
- Statistical analysis correlated CAP with steatosis grades and LSM with fibrosis stages, assessing diagnostic performance for fibrosis.
Main Results:
- CAP showed no significant correlation with histologic steatosis grades (p=0.422).
- LSM values increased with fibrosis stage, but significant differences were only found between stage 0 and stage 3 fibrosis (p=0.037).
- For advanced fibrosis (stages 3-4), the area under the receiver operating characteristic curve was 0.67, with 67% sensitivity and 76% specificity.
Conclusions:
- VCTE demonstrated modest accuracy in grading steatosis and staging fibrosis in pediatric MASLD.
- Current VCTE parameters are insufficient for reliable noninvasive assessment in this population.
- There is an urgent need for improved noninvasive diagnostic and monitoring tools for pediatric MASLD.
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