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Gastric bypass is one of the most effective and best-studied weight-loss operations in the world. At Operla Clinic it is performed laparoscopically by senior bariatric surgeons in a fully accredited Istanbul hospital, with lifelong follow-up built into your package.
BeforeAfter ✦Gastric bypass is performed under general anesthesia through five to six small keyhole incisions. The operation is carried out only after a full day of pre-operative testing confirms you are fit for surgery.
On arrival you undergo comprehensive tests — blood panel, ECG, chest imaging, abdominal ultrasound and endoscopy — plus consultations with the surgeon, anesthesiologist and dietitian. Surgery only proceeds once every result is cleared.
Under general anesthesia, the surgeon divides the upper stomach to create a small pouch of roughly 30 millilitres. This becomes your new, much smaller functional stomach.
A section of the small intestine is brought up and joined to the new pouch, so food bypasses the remaining stomach and the first part of the intestine. This reroute is what drives both reduced absorption and the powerful metabolic effect.
Before finishing, the surgical team pressure-tests all new connections for leaks and checks the anatomy carefully. The small incisions are then closed with dissolvable stitches.
You spend three to four nights in hospital under the care of the bariatric team, walking within hours of surgery and starting a staged liquid diet before discharge to your hotel.
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Gastric bypass is major but life-changing surgery, and candidacy is assessed carefully. Our surgeons review your full medical history and test results before confirming that bypass — rather than sleeve or a non-surgical option — is the right choice for you.
Most patients lose around 60–80% of their excess body weight within 12–18 months, though individual results vary with age, starting weight and lifestyle. Just as importantly, bypass produces significant improvement — and often remission — of type 2 diabetes, hypertension and sleep apnea.
Safety depends on the surgeon and the hospital, not the country. Our bariatric surgeons have performed thousands of laparoscopic procedures and operate exclusively in fully accredited hospitals with intensive-care units, 24/7 monitoring and international patient departments. You also complete a full set of pre-operative tests before surgery is confirmed.
The sleeve removes most of the stomach but leaves the digestive route unchanged; the bypass creates a small pouch and reroutes the intestine, adding a malabsorptive and stronger metabolic effect. Bypass is often preferred for patients with type 2 diabetes or severe reflux, while the sleeve is a simpler operation with no rerouting. Your surgeon will recommend the best fit after your tests.
Yes. Because part of the intestine is bypassed, absorption of iron, calcium, vitamin B12 and vitamin D is reduced, so daily supplements and periodic blood tests are a lifelong commitment. Our follow-up programme includes reminders and reviews of your annual results.
You stay in Istanbul for about seven nights, including three to four in hospital. Most patients with desk-based jobs return to work within two to three weeks of surgery, and to unrestricted exercise by six to eight weeks.
Technically it can be revised or, in rare cases, reversed, but it should be considered a permanent change. That is why we invest so much in pre-operative assessment and honest counselling — bypass is only recommended when it is genuinely the right operation for you.
Your package includes all pre-operative tests, the operation and hospital stay, medications and compression garments, hotel accommodation, VIP transfers between airport, hotel and hospital, a dedicated interpreter, and structured lifelong remote follow-up with our bariatric team. There are no hidden costs.
After substantial weight loss some degree of loose skin is common, depending on age, skin quality and how much weight is lost. Many patients later choose body-contouring procedures such as tummy tuck or arm lift, which our plastic surgery team can plan with you once your weight has been stable for about a year.
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