Challenges in Screening for Pediatric Nonalcoholic Fatty Liver Disease
Anna E Ferguson1, Stavra A Xanthakos1, Robert M Siegel1
11 Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
Insights
Screening for nonalcoholic fatty liver disease (NAFLD) in obese children is challenging. Many children with elevated liver enzymes in a pediatric weight program did not complete recommended follow-up testing.
Area of Science:
- Pediatric Gastroenterology
- Hepatology
- Obesity Medicine
Background:
- Nonalcoholic fatty liver disease (NAFLD) is a leading cause of elevated liver enzymes in US children.
- Published guidelines recommend NAFLD screening for children with obesity.
- The implementation of these recommendations in pediatric weight management settings is not well-defined.
Purpose of the Study:
- To characterize NAFLD screening practices within a large pediatric weight management program.
- To assess the rate of elevated liver enzymes and subsequent diagnostic steps in this cohort.
Main Methods:
- Retrospective chart review of patients in a pediatric weight management program during 2014.
- Analysis of liver enzyme panels and follow-up laboratory testing.
- Inclusion criteria: patients seen in the program, liver enzyme data available.
Main Results:
- A total of 1312 patients were evaluated; liver enzyme panels were obtained for 847 (64.5%).
- 5.5% (47/847) had liver enzymes elevated twice the upper limit of normal.
- Of those with elevated enzymes, 70% (33/47) had persistent elevations, and 67% (22/33) underwent further exclusionary testing.
Conclusions:
- Screening for NAFLD in pediatric weight management programs presents significant challenges.
- Adherence to recommended exclusionary testing for elevated liver enzymes is suboptimal.
- Barriers preventing completion of further diagnostic evaluations require identification and intervention.
Abstract:
Nonalcoholic fatty liver disease (NAFLD) is the most common cause of elevated liver enzymes in children in the United States. Screening for NAFLD in children with obesity is recommended by several published guidelines, but the application of these recommendations in pediatric weight management programs is uncertain. Our study aimed to describe the screening practices for NAFLD in a large pediatric weight management program. During 2014, 1312 patients were seen, with a liver enzyme panel obtained in 847 (64.5%). Only 47/847 (5.5%) had elevated liver enzymes twice the upper limit of normal. Of the 47, 33 (70%) patients had persistently elevated liver enzymes. Of those 33, 22 (67%) had further exclusionary laboratory testing. Screening for NAFLD is challenging even in a pediatric weight management program with clearly established protocols. Those with elevated liver enzymes do not always complete recommended exclusionary testing. Barriers to completing further evaluation need to be addressed.
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