Gastric Bypass

Gastric Bypass


  • Gastric bypass is the surgical procedure for obesity treatment. This involves creating a stomach pouch that restricts food intake. Small intestine is attached directly to new stomach pouch, bypassing the lower stomach and duodenum. The patient eats less after surgery as he/she feels full sooner, leading to loss of weight.
  • Surgery is possible via
  • Laparoscope
  • Open Incision

Why it is needed:

This surgery is prescribed when obese patients cannot lose weight by other methods.

  • The ideal candidate for surgery:
  • BMI -body mass index equal to 40 or more
  • Those whose BMI is 35 or more, but suffer from medical conditions such as diabetes, sleep apnoea, osteoarthritis, heart disease and so on, and would benefit from weight loss
  • Aged between 18 -55 years and willing to followed prescribed diet (and restrictions)

Facts and Figures:

  • Obesity causes premature deaths worldwide. It is ranked second in the cause of preventable deaths in US, where it causes 300,000 deaths every year.
  • Linner and Kremen performed the first surgery, which led to the modern method of bariatric surgery

Advantages and Disadvantages


  • Marked weight reduction after surgery. It makes life comfortable as patients as it eases daily activities and movement.
  • Definite improvement is observed in medical conditions such as asthma, hypertension, diabetes, sleep apnoea etc.


  • Surgery may increase chance of developing gall bladder stones.
  • A chance for developing Hernia.
  • Malnutrition may occur leading to Osteoporosis, Anemia, and/ or Depression.
  • Leaking via the staples in stomach post-surgery may need emergency surgery

Gastric Band

Risks and Complications:

  • Reaction to medication or anesthesia
  • Pulmonary embolism
  • Blood clots
  • Pneumonia
  • Bleeding
  • Injuries to the intestine, stomach, or adjacent organ/s
  • Dumping syndrome

Pre-operative and Post-operative Care

Pre-Operative Preparation:

  • Full-body physical examination
  • Blood plus urinalysis
  • Ultrasound – abdomen
  • Visiting surgeon to have a list of medicines for pre and post-surgery
  • Inform surgeon about alcohol or smoking habits
  • Nutritional counseling
  • Receiving counseling for mental health, to cope with emotional and physical changes post surgery
  • Arrange work leave, help at home and driving, and post-operative care
  • Fasting after midnight before surgery
  • Medical tourist should select a handicapped-accessible hotel near hospital post-surgery recuperation

Post-Operative Care:

  • Patients have stay for 3-5 days in hospital post-surgery. The catheter is used to drain body fluids, which is removed within 1-3 days post-surgery
  • Pain medication is given
  • Patients have to ingest liquids for 1-3 days, then soft food is allowed

Do’s, Don’ts & Precautions:

  •  Do eat small amounts at one go
  • Avoid foods having simple sugars like juice, candy, juice, beverages, condiments, soft drinks to avoid ‘Dumping syndrome’
  • Do follow diet prescribed strictly. Exercise regularly to receive best outcome of surgery