Is metabolic surgery helpful for individuals with NASH?

Question

Hello doctor,

I am a 36-year-old female recently diagnosed with nonalcoholic steatohepatitis (NASH) and insulin resistance. My body mass index (BMI) is 42, and I also have polycystic ovary syndrome (PCOS). I have tried various approaches to weight loss, including intermittent fasting and glucagon-like peptide-1 (GLP-1) receptor agonist medications, but have seen minimal results. My endocrinologist has now recommended considering metabolic (bariatric) surgery, specifically Roux-en-Y gastric bypass, as a potential strategy to reverse insulin resistance and reduce the risk of long-term liver damage. However, I have a history of iron deficiency anemia and am concerned about the potential for long-term nutrient malabsorption. Would sleeve gastrectomy be a safer option from a nutritional standpoint, particularly regarding iron absorption? Additionally, how soon after metabolic surgery do patients typically see changes in hormone levels or improvements in liver function and metabolic parameters?

Please help.

Answer 1

Hello,

Welcome to icliniq.com.

I understand your concern.

Both Roux-en-Y gastric bypass and sleeve gastrectomy are effective metabolic surgery options for promoting weight loss and improving insulin resistance. However, gastric bypass is associated with a higher risk of long-term nutrient malabsorption, including deficiencies in iron, vitamin B12, and other micronutrients. In contrast, sleeve gastrectomy generally poses a lower risk of nutrient malabsorption and may be more appropriate for individuals with a history of iron deficiency anemia. Given your existing iron deficiency anemia, malabsorption is an important consideration. Sleeve gastrectomy may offer a safer profile in terms of maintaining adequate nutrient absorption, though both procedures require lifelong supplementation and close monitoring of vitamins and minerals after surgery. Metabolic and hormonal changes often begin within a few weeks to a few months after surgery. Patients frequently experience improvements in insulin sensitivity, polycystic ovary syndrome (PCOS) symptoms, and liver function as weight decreases and metabolic markers stabilize. Improvements in liver enzymes and signs of nonalcoholic steatohepatitis (NASH) are commonly observed within six to twelve months postoperatively.

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Thank you.