Gastroenterology · Surgery · 3 h ago
Bariatric surgery linked to histologic regression in compensated MASH cirrhosis
A retrospective study of 30 adults with biopsy-proven compensated MASH cirrhosis who underwent metabolic bariatric surgery found histologic cirrhosis regression in 33% to 40%, depending on the staging method. The findings are based on paired biopsies obtained a median of 6.2 years apart.
- Retrospective cohort included 30 patients with paired liver biopsies.
- Cirrhosis regression ranged from 33% to 40% by staging method.
- Median total weight loss was 23.9%.
- Small, selected cohort limits generalizability.
Researchers at Cleveland Clinic retrospectively studied adults with biopsy-proven compensated MASH cirrhosis who underwent metabolic bariatric surgery between 2004 and 2024 and had liver biopsies before and after surgery. The primary outcome was regression from NASH Clinical Research Network stage 4 to stage 3 or lower; fibrosis was also assessed using modified Ishak staging and the Beijing classification.
Among 30 patients, 22 (73%) were female; median age was 54.2 years and median baseline BMI was 43.7 kg/m². Over a median 6.2 years between biopsies, median total weight loss was 23.9%. Cirrhosis regression was observed in 33% by NASH CRN staging and 40% by modified Ishak staging. The Beijing classification identified regressive fibrosis features in 60%. Steatosis, lobular inflammation and hepatocyte ballooning also improved.
The results suggest that histologic improvement, including regression of cirrhosis, may occur after substantial weight loss in some patients with compensated MASH cirrhosis. However, the study was small and retrospective, and inclusion required paired biopsies, limiting generalizability. The findings do not establish that surgery reverses cirrhosis in all patients or demonstrate effects on clinical outcomes.
In practice
For adults with compensated MASH cirrhosis and severe obesity, this small retrospective cohort provides evidence that histologic fibrosis regression can be observed after metabolic bariatric surgery: regression was reported in 33% to 40% by two staging systems. This is not evidence that surgery routinely reverses cirrhosis or improves clinical outcomes, and it does not establish which patients benefit. The study included only 30 patients with paired biopsies, so it does not justify changing treatment decisions on its own.
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Annals of Surgery: Cirrhosis Regression After Metabolic Bariatric Surgery in Patients With Compensated MASH Cirrhosis ↗This is an automated AI-condensed summary that has not yet been reviewed by an editor. Always consult the full item at the original source.