Gastric Sleeve in Colombia

The sleeve gastrectomy is the most commonly performed bariatric operation in the world today, and it is the procedure most international patients come to Colombia for. It is also — despite how routine it has become — major, permanent, irreversible surgery on a healthy organ. Both of those things are true at once, and any page that tells you only one of them is selling something.

In a laparoscopic sleeve gastrectomy, the surgeon removes roughly 75–80% of the stomach, leaving a narrow vertical tube — the “sleeve” — running from the esophagus to the small intestine. The removed portion goes out; nothing is rerouted and nothing is implanted. It is performed through several small incisions using a camera and instruments, typically under general anesthesia, and typically takes somewhere in the range of one to two hours depending on the case.

Two mechanisms drive the results. The obvious one is restriction: a much smaller stomach holds much less. The less obvious one matters more than most people realize — the removed portion of the stomach is the main producer of ghrelin, a hormone involved in hunger signaling, and its removal changes appetite regulation in ways that go beyond mechanical capacity. This is why patients frequently describe the experience as not thinking about food constantly, rather than as constant restraint.

It is not reversible. The removed stomach is gone. A sleeve can be revised into another operation later if needed (see revision surgery), but it cannot be undone.

Published outcomes for sleeve gastrectomy are generally reported as a percentage of excess weight lost, typically peaking somewhere in the first 12–18 months, with most large series reporting substantial loss in that window and some regain common over subsequent years. Precise numbers vary widely by study, by starting point, by follow-up adherence, and by individual — which is exactly why we are not going to print a single headline figure here as though it were a promise. Your surgeon can discuss expected outcomes for your specific situation.

What is well documented beyond weight itself: bariatric surgery is associated with meaningful improvement or remission in type 2 diabetes, hypertension, sleep apnea, and other obesity-related conditions in many patients. For a great many people, those metabolic changes — not the number on any scale — are the actual clinical point of the operation.

Bariatric surgery is generally considered to have a safety profile comparable to other common abdominal operations when performed by experienced surgeons in properly equipped facilities. That is a real and reassuring statement. It is not the same as “low risk,” and it depends entirely on the two conditions inside it.

Recognized risks specific to or notable in sleeve gastrectomy include:

• Staple line leak — uncommon but the most serious early complication, requiring immediate intervention. This is the single strongest argument for staying in-country through your recovery window and for confirming your surgeon's complication protocol before you book.
• Bleeding, early or delayed
• Strictures or narrowing of the sleeve
• New or worsened acid reflux (GERD) — a genuinely common issue after sleeve, and a significant one: for some patients it is the reason a sleeve is later revised to a bypass. If you already have significant reflux, raise it explicitly — many surgeons will steer you toward bypass instead.
• Blood clots (DVT/PE), the reason mobility protocols and clearance timing matter
• Nutritional deficiencies — lower risk than with bypass, but real and lifelong-relevant
• The general risks of any surgery: anesthesia reactions, infection, hernia at incision sites

Ask any surgeon you are considering about their own complication and reoperation rates for this procedure. A surgeon who tracks that number and shares it has told you a great deal about how they practice.

There is no universally better operation — there is a better operation for a given patient, chosen by a surgeon who has evaluated your history, your reflux status, your metabolic picture, and your ability to commit to lifelong supplementation. Anyone who recommends a specific procedure before evaluating you is quoting, not advising. Full comparison on the bypass page.

1. Remote consultation — you share your history, medications, and relevant records; the surgeon assesses preliminary candidacy and discusses which operation may suit you.
2. Pre-operative workup — bariatric programs typically require a battery of evaluations before clearing anyone: bloodwork, often endoscopy, cardiac and pulmonary assessment as indicated, and consultations with a nutritionist and frequently a psychologist. A program that skips these is not a bariatric program. This is the loudest quality signal in the entire field.
3. Arrival and in-person evaluation — typically several days before surgery for remaining studies and the face-to-face consult.
4. Surgery and hospital stay — commonly one to three nights depending on the program and your case.
5. Recovery window in-country — the period before flying is not optional padding; see recovery.
6. Lifelong follow-up, beginning immediately and continuing after you return home — see life after surgery.

Typical total time in Colombia for a sleeve runs meaningfully longer than most cosmetic procedures — plan on roughly two to three weeks and let your surgeon set the actual date. Details and the reasoning are on the recovery page.

Recovery from a sleeve involves a staged progression of textures — beginning with clear liquids, advancing through full liquids and pureed foods, then soft foods, and eventually a modified regular diet — over a period of weeks, with the pace set by your surgical team.

We deliberately do not publish specific volumes, calorie targets, gram counts, or meal plans anywhere on this site. Those numbers are individualized medical instructions from your surgical team's dietitian, they differ meaningfully between programs and patients, and a public page is precisely the wrong place to source them. If a website hands you exact post-op numbers before anyone has evaluated you, that is a marketing document wearing a clinical costume. Get your numbers from the team that operated on you, and follow them exactly.