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Published on: March 24, 2023
Evaluating Pediatric NAFLD with Controlled Attenuation Parameter: A Comprehensive Narrative Review
Ingrid Arteaga1,2,3, Carla Chacón1,2,4, Alba Martínez-Escudé1,2,5,6
1Unitat de Suport a la Recerca (USR) Metropolitana Nord, Fundació Institut Universitari d'Investigació en Atenció Primària Jordi Gol i Gurina (IDIAP Jordi Gol), 08303 Mataró, Spain.
Insights
Pediatric non-alcoholic fatty liver disease (NAFLD) is rising. Controlled Attenuation Parameter (CAP) shows promise as an accessible, non-invasive tool for diagnosing pediatric NAFLD, simplifying detection compared to traditional methods.
Area of Science:
- Hepatology
- Pediatric Gastroenterology
- Medical Diagnostics
Background:
- Non-alcoholic fatty liver disease (NAFLD) prevalence is increasing in children.
- Pediatric NAFLD can progress more severely than in adults.
- Current diagnostic methods like liver biopsy are invasive and costly; MRI-PDFF is expensive and less accessible.
Purpose of the Study:
- To review the diagnostic accuracy of Controlled Attenuation Parameter (CAP) for pediatric NAFLD.
- To evaluate CAP as a non-invasive alternative for diagnosing hepatic steatosis in children.
Main Methods:
- Systematic literature review of studies on CAP in pediatric NAFLD.
- Searched PubMed and EMBASE databases.
- Included seven studies comparing CAP with liver biopsy and/or MRI-PDFF.
Main Results:
- Controlled Attenuation Parameter (CAP) demonstrated accuracy in detecting fatty infiltration in children.
- CAP is a non-invasive, accessible, and effective method for diagnosing hepatic steatosis.
- CAP shows potential to simplify NAFLD diagnosis in pediatric patients.
Conclusions:
- CAP is a promising tool for diagnosing pediatric NAFLD.
- Further research in larger populations is necessary to confirm findings and support clinical implementation.
- CAP offers a valuable, accessible alternative for non-invasive NAFLD diagnosis in children.
Abstract:
Non-alcoholic fatty liver disease (NAFLD) in the pediatric population has emerged as a significant health concern due to its alarming rise in prevalence. In children, the characteristics of the disease differ from those seen in adults. NAFLD may progress to more severe liver disease in children compared to adults with similar profiles. Liver biopsy remains the gold standard for diagnosis; its invasive nature and high cost limit its use as a first-line tool. Alternatively, magnetic resonance imaging (MRI) techniques, such as magnetic resonance imaging-estimated liver proton density fat fraction (MRI-PDFF), have shown a good correlation with the degree of histological steatosis, although their use is limited by high costs and limited accessibility. Controlled attenuation parameter (CAP), integrated with vibration-controlled transient elastography (VCTE) (FibroScan®), is a novel non-invasive, accessible, and effective method for diagnosing hepatic steatosis. In this article, we reviewed the existing literature on the diagnostic accuracy of CAP in pediatric NAFLD. The PubMed and EMBASE databases were searched. Seven relevant studies were identified, conducted in pediatric hospital populations with specific demographic characteristics. Two of these studies compared CAP with liver biopsy, one compared CAP with liver biopsy and MRI-PDFF, and the remaining four compared CAP with MRI. Overall, CAP proved to be accurate in detecting the presence or absence of fatty infiltration, positioning it as a promising tool to simplify the diagnosis of NAFLD in children. However, further studies in larger populations are needed to confirm these findings and facilitate its implementation in routine clinical practice.

