Mini gastric bypass

How it works

• A long, narrow stomach pouch is created and connected to a loop of small intestine.
• Only one anastomosis (surgical connection) is required.
• Combines restrictive and malabsorptive mechanisms.

Risks and considerations

• Standard surgical risks (bleeding, infection)
• Bile reflux in a subset of patients
• Marginal ulcer at the anastomosis
• Nutritional deficiencies requiring lifelong supplementation and monitoring

Follow-up

Long-term nutrition supplementation and annual labs are standard.

May be discussed for

• Adults living with obesity, particularly those with type 2 diabetes
• Patients who prefer a shorter operative time than Roux-en-Y

When it may not be appropriate

Patients with severe pre-existing reflux or Barrett's esophagus may be advised toward alternative procedures.