Abstract
Background: Bariatric surgery is one of the effective therapeutic options for people
with obesity and obesity-related co-morbidities. In addition to weight-related co-morbid diseases,
including diabetes, hypertension, and hypercholesterolemia, non-alcoholic fatty liver disease
(NAFLD) is common in patients with morbid obesity. Bariatric surgery is one of the therapeutic
options in the management of NAFLD. Hence, this review focused on the potential role of bariatric
surgery on hepatic elasticity measured through shear wave elastography.
Methods: A systematic literature search was performed, and the studies regarding heterogeneity
were evaluated using the random-effects model.
Results: The meta-analysis on 6 trials (3-12 months follow-up) including 350 participants showed
a significant reduction of liver elasticity after surgery (WMD: -1.149, 95% CI: -1.767, -0.532, p <
0.001; I2:81.55%).
Conclusion: Bariatric surgery is associated with decreased liver elasticity. This improvement
could be related to weight loss or other mechanisms of bariatric surgery.
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