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Pre-Op Mini Gastric Bypass Concerns

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Hi Everyone,

I am going outside US to get a mini gastric bypass (MGB) in August. After reading many posts, and watching YouTube videos I am really concerned about the following:

- Bile Reflux: It seems like a large percentage of MGBs get Bile Reflux and have to have another operation. Has that been the case for you?

- Foul-Smelling Stool: Is this the case for everyone? Does it get better after a while?

- Malnutrition: Does this happen to everyone and is taking Vitamins (multi, D3, B12) enough to fix this? What else are you taking to prevent malnutrition?

- After experiencing MGB, do you recommend MGB instead of RNY or sleeve?

Thank you in advance for your time and valuable replied.


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Hi hk1100,

I had MGB survey outside the US on 12/12/16.

Bile Reflux - in my research before surgery, I found that most MGB patients do not suffer with bile reflux. Surgeons who are really experienced with MGB can make sure their patients don’t experience bile reflux.

Foul-smelling stool - all bariatric surgeries cause both foul-smelling stools and gas. For some people, taking Probiotics can help with that. But it is a trade off for being healthier.

Malnutrition - most MGB patients don’t suffer from malnutrition as long as they follow their surgeon’s post-op instructions. Other than vitamin patches, I’m not doing anything extra other than making sure I get my Protein and fluids.

I would recommend MGB surgery to anyone looking into having weight loss surgery.

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Thank you for your quick and thorough response.

I look forward to hearing from other MGBs.

Thanks again


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I had MGB surgery 15 months ago with a very experienced surgeon. However, 8 months post-op I developed bile reflux. It is no joke, very painful, and has caused Barrett’s Esophagus. The only solution for me is the revise to an RNY this summer. I wish I had the RNY originally.

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