Gastric Bypass in Sharjah
Medically reviewed by Dar Al Kamal Team
What is a gastric bypass?
A gastric bypass, in full a Roux-en-Y gastric bypass, is an operation that divides the stomach and reconnects the small intestine in the shape of a letter Y. The top of the stomach becomes a pouch about the size of an egg. The rest of the stomach stays in the body, sealed off, and keeps producing digestive juices that travel down to meet food further along. It is one of the two main operations described on the bariatric surgery overview page.
A fact few patients expect: much of the effect of a bypass comes from hormones as well as from the smaller pouch. Because food reaches the lower small intestine sooner, the gut releases more of the signals that raise fullness and help the body handle sugar. This is why blood sugar in type 2 diabetes often improves within days of a bypass, before much weight has been lost.
Dar Al Kamal Hospital, Sharjah offers gastric bypass as part of its general and laparoscopic surgery service.
Who needs it
A gastric bypass is considered for adults with severe obesity who meet the general BMI criteria for weight-loss surgery, usually a BMI of 40 or above, or 35 or above with a weight-related illness. It is often the operation surgeons favour for three groups: people with type 2 diabetes, people with troublesome acid reflux or a hiatus hernia, and people who already have a sleeve gastrectomy and now have reflux or weight regain.
The main alternative is the sleeve, which keeps the intestine unchanged and involves one staple line instead of two joins. A bypass asks for stricter lifelong habits, including avoiding anti-inflammatory painkillers and smoking. Your surgeon weighs your diabetes, reflux, medicines, smoking history and willingness to take supplements for life, then explains which operation fits you. Ongoing care for diabetes continues through diabetes management.
What happens
A gastric bypass is performed under general anaesthesia through five or six small cuts in the abdomen. The surgeon staples across the top of the stomach to form the pouch. A limb of small intestine is then brought up and joined to the pouch, which becomes the path food follows. Further down, the section of bowel that carries bile and digestive juices from the bypassed stomach is joined back in, completing the Y.
The joins are tested for leaks before the cuts are closed. The small gaps between the loops of bowel are often stitched shut to lower the chance of an internal hernia. You wake in the recovery area, begin sips of water when the team advises, and are helped out of bed to walk the same day or the next. You go home once you are drinking well and your pain is controlled with tablets.
Preparing for it
A dietitian at Dar Al Kamal Hospital, Sharjah works with you before the operation on protein, portion size and the staged diet after it, and may ask you to follow a low-calorie liver-reducing diet in the days beforehand. A psychological evaluation is arranged as part of your care pathway. Blood tests check iron, vitamin B12, folate and vitamin D so any shortfall can be corrected in advance.
Smoking needs to stop completely before a bypass and stay stopped, because it raises the risk of ulcers at the join. Bring your medicine list: diabetes medicines often need lowering on the day of surgery, and slow-release tablets may need changing afterwards because they are absorbed differently. Plan your date away from Ramadan so the first months of healing include regular sips and meals through daylight hours.
Afterwards
The diet steps up from fluids to purée, soft food and then small normal meals, with protein first and fluids taken between meals. The bypass has a built-in warning system called dumping: sugary food or drink passing quickly into the bowel can bring on sweating, a racing heart, cramps or faintness. Learning to eat small, slow, low-sugar meals keeps you comfortable. At Iftar in later years, sweet juices, syrups and a large plate of dates are common triggers, so start with water and a small savoury dish.
Lifelong supplements are essential after a bypass: a daily multivitamin with iron, calcium with vitamin D, and vitamin B12, checked by blood tests at every follow-up. Anti-inflammatory painkillers are best avoided for life; ask the team which pain relief is safe. Your surgeon agrees a timeline for work and driving with you.
Contact the hospital urgently if you have a fever, a racing heart at rest, worsening abdominal pain, or vomiting that stops you keeping fluids down. **Go to the emergency department straight away if you have severe cramping abdominal pain that comes in waves, chest pain, breathlessness or a swollen, painful leg, even months or years after the operation.**
Cost and insurance
Gastric bypass needs insurance pre-approval, and many UAE plans exclude weight-loss surgery. Plans that include it usually require a documented BMI, a record of weight-related illness such as diabetes, evidence of supervised weight management, and dietitian and psychological assessments; reflux investigations may be requested too. Dar Al Kamal Hospital, Sharjah can help you check your cover on 06 599 7777.
Related services
Frequently asked questions
What are the risks of a gastric bypass?
A gastric bypass carries the risks of any keyhole abdominal operation, such as bleeding, infection, blood clots and anaesthetic reactions, plus a risk of a leak at one of the joins. Later problems can include ulcers at the join, internal hernia causing bowel blockage, dumping, gallstones and vitamin or iron deficiency. Your surgeon explains these before you decide.
Can a gastric bypass be reversed?
A gastric bypass can technically be reversed because no stomach is removed, but reversal is a major operation and is rarely done. It is best treated as a permanent change when you decide.
What is dumping syndrome?
Dumping syndrome is a group of symptoms, such as sweating, a racing heart, cramps, diarrhoea or faintness, that follow sugary or large meals after a gastric bypass. Eating small, slow, low-sugar meals prevents most episodes, and persistent symptoms should be reported to your team.
Why is a gastric bypass often chosen for diabetes?
A gastric bypass is often chosen for type 2 diabetes because food reaching the lower bowel sooner changes gut hormones that control blood sugar. Blood sugar frequently improves early, though diabetes can still return and needs continued monitoring.
Can I take painkillers after a gastric bypass?
Anti-inflammatory painkillers such as ibuprofen are generally avoided for life after a gastric bypass, because they raise the risk of ulcers at the join. Paracetamol is usually preferred, and your team advises on anything else you need.
Can I fast in Ramadan after a gastric bypass?
Fasting in Ramadan after a gastric bypass is possible for many people once they have fully healed, but only after agreeing a plan with the surgeon and dietitian. Sugary Iftar foods can trigger dumping, and long hot days make it harder to drink enough.
Can a gastric bypass be done after a sleeve?
A gastric bypass is a common second operation after a sleeve gastrectomy, particularly for reflux or weight regain. The revision pathway includes a camera test and imaging first.
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