Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2023
Remission of nonalcoholic steatohepatitis after bariatric surgery: a single referral center cohort study.
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Drai Céline, Chierici Andrea, Pavone Giovanna, Benamran Dorith, Alromayan Mohamed, Alamri Abdulrhamane, Anty Rodolphe, Liddo Guido, Iannelli Antonio
Аннотация
BACKGROUND: Obesity is associated with nonalcoholic steatohepatitis (NASH), which leads to an increased rate of primary liver cancers, cirrhosis, and decreased life expectancy. Metabolic/bariatric surgery (MBS) determines long-term weight loss and the resolution of obesity-related medical problems.
OBJECTIVE: The aim of this study was to evaluate the impact of MBS on liver histologic features in individuals with obesity.
SETTING: Tertiary referral university hospital.
METHODS: We retrospectively analyzed data on 37 patients undergoing MBS from a prospectively held database. All patients had a liver biopsy at the time of MBS and a second liver biopsy in case of further surgery or for NASH follow-up. Eighteen patients had NASH on the first liver biopsy. The primary endpoint was the resolution of steatohepatitis without worsening of fibrosis on the second liver biopsy. Secondary endpoints were the evolution of liver steatosis, hepatocyte ballooning, nonalcoholic fatty liver disease activity score, and biochemical parameters from the time of the first to the second liver biopsy.
RESULTS: Fifteen (83.3%) patients had significant resolution of steatohepatitis (P < .001) without fibrosis worsening. There was a statistically significant improvement of all blood tests except for low-density lipoprotein, alkaline phosphatases, and bilirubinemia. The Homeostatic Model Assessment (HOMA) index was significantly improved after MBS (P < .001), and circulating insulin and leptin concentrations were significantly reduced. Mean weight loss was 47 kg, with a 16.6 kg/m2 body mass index reduction and a % of total weight loss (%TWL) of 40.3 ±14% from the moment of MBS to the last follow-up.
CONCLUSION: MBS is effective in determining NASH regression without fibrosis worsening and in reducing HOMA index and leptin and insulin concentrations.
OBJECTIVE: The aim of this study was to evaluate the impact of MBS on liver histologic features in individuals with obesity.
SETTING: Tertiary referral university hospital.
METHODS: We retrospectively analyzed data on 37 patients undergoing MBS from a prospectively held database. All patients had a liver biopsy at the time of MBS and a second liver biopsy in case of further surgery or for NASH follow-up. Eighteen patients had NASH on the first liver biopsy. The primary endpoint was the resolution of steatohepatitis without worsening of fibrosis on the second liver biopsy. Secondary endpoints were the evolution of liver steatosis, hepatocyte ballooning, nonalcoholic fatty liver disease activity score, and biochemical parameters from the time of the first to the second liver biopsy.
RESULTS: Fifteen (83.3%) patients had significant resolution of steatohepatitis (P < .001) without fibrosis worsening. There was a statistically significant improvement of all blood tests except for low-density lipoprotein, alkaline phosphatases, and bilirubinemia. The Homeostatic Model Assessment (HOMA) index was significantly improved after MBS (P < .001), and circulating insulin and leptin concentrations were significantly reduced. Mean weight loss was 47 kg, with a 16.6 kg/m2 body mass index reduction and a % of total weight loss (%TWL) of 40.3 ±14% from the moment of MBS to the last follow-up.
CONCLUSION: MBS is effective in determining NASH regression without fibrosis worsening and in reducing HOMA index and leptin and insulin concentrations.