Yoshiharu Isoura1, Yuki Cho1, Hiroki Fujimoto2, Takashi Hamazaki1, Daisuke Tokuhara3. 1. Department of Pediatrics, Osaka City University Graduate School of Medicine, Osaka, Japan. 2. Nutrition Dietary Section, Osaka City University Hospital, Osaka, Japan. 3. Department of Pediatrics, Osaka City University Graduate School of Medicine, Osaka, Japan. Electronic address: m1155519@med.osaka-cu.ac.jp.
Abstract
AIM: To clarify the effects of obesity reduction on non-alcoholic fatty liver disease (NAFLD) in obese children. METHODS: Twenty-six obese pediatric NAFLD patients (median age, 13.0 years; range, 6.4-16.6 years), who underwent obesity management supported by regular hospital visits and/or hospital admission, were studied to explore how reductions in weight and body mass index (BMI) percentile affected two transient elastography-based parameters: controlled attenuation parameter (CAP) and liver stiffness (LS), which reflect the degree of hepatic fat deposition and liver fibrosis, respectively. RESULTS: Univariate analysis revealed that CAP reduction was correlated positively with baseline CAP and reductions in weight and BMI percentile (r = 0.320-0.525), whereas LS reduction was correlated positively with baseline LS and reductions in weight, BMI percentile, aspartate transaminase, and alanine aminotransferase (r = 0.385-0.625). Multivariate analysis revealed that baseline CAP and reduction in weight were significantly associated with CAP reduction, whereas reduction in weight and alanine aminotransferase were significantly associated with LS reduction. Short-term weight control by hospital admission (24.9 ± 9.5 days) provided significantly higher reductions in weight and BMI percentile (both P < 0.001) and was associated with reductions of CAP and LS (P = 0.04 and 0.01) compared with regular hospital visit-supported self-directed weight management (0.9 ± 0.8 years). CONCLUSIONS: Weight reduction in obese pediatric NAFLD patients resulted in reduced hepatic fat deposition and liver stiffness. Weight control by short-term hospital admission is an alternative approach to regular hospital visit-supported self-directed weight management in NAFLD patients who fail to reduce obesity.
AIM: To clarify the effects of obesity reduction on non-alcoholic fatty liver disease (NAFLD) in obesechildren. METHODS: Twenty-six obese pediatric NAFLDpatients (median age, 13.0 years; range, 6.4-16.6 years), who underwent obesity management supported by regular hospital visits and/or hospital admission, were studied to explore how reductions in weight and body mass index (BMI) percentile affected two transient elastography-based parameters: controlled attenuation parameter (CAP) and liver stiffness (LS), which reflect the degree of hepatic fat deposition and liver fibrosis, respectively. RESULTS: Univariate analysis revealed that CAP reduction was correlated positively with baseline CAP and reductions in weight and BMI percentile (r = 0.320-0.525), whereas LS reduction was correlated positively with baseline LS and reductions in weight, BMI percentile, aspartate transaminase, and alanine aminotransferase (r = 0.385-0.625). Multivariate analysis revealed that baseline CAP and reduction in weight were significantly associated with CAP reduction, whereas reduction in weight and alanine aminotransferase were significantly associated with LS reduction. Short-term weight control by hospital admission (24.9 ± 9.5 days) provided significantly higher reductions in weight and BMI percentile (both P < 0.001) and was associated with reductions of CAP and LS (P = 0.04 and 0.01) compared with regular hospital visit-supported self-directed weight management (0.9 ± 0.8 years). CONCLUSIONS: Weight reduction in obese pediatric NAFLDpatients resulted in reduced hepatic fat deposition and liver stiffness. Weight control by short-term hospital admission is an alternative approach to regular hospital visit-supported self-directed weight management in NAFLDpatients who fail to reduce obesity.
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