Endoscopic Sleeve Gastroplasty

Endoscopic sleeve gastroplasty is a procedure performed from the inside of the stomach with access through the mouth and esophagus. A flexible endoscope carries a suturing device into the stomach, and a series of full thickness sutures is placed along the greater curvature. Drawing those sutures together folds the stomach inward, so the interior becomes a narrower tube. Nothing is implanted and nothing is left behind other than sutures.

Two things follow from that. The stomach holds less at one sitting, and it empties more slowly, which changes the fullness signals the stomach sends after a meal. Neither effect depends on removing anything.

Because no tissue is removed, the procedure is potentially reversible and can be revised.

A robotic sleeve gastrectomy is an operation. Small incisions are made in the abdomen, and a portion of the stomach is separated and permanently removed. It is a well established operation with decades of data behind it, and for many people it is the right choice.

ESG works on the same organ toward a similar goal by a different route.

Sleeve gastrectomy removes roughly seventy five to eighty percent of the stomach, including the fundus, the upper portion of the stomach, which lowers the hunger hormone ghrelin. The effect is both restrictive and hormonal, not purely mechanical.

Because ESG preserves the natural stomach anatomy and does not remove the fundus, it is generally associated with less new onset reflux than surgical sleeve gastrectomy.

• ESG: no incisions, no tissue removed, sutured from inside, discharge timing discussed at your visit
• Surgical sleeve: laparoscopic incisions, part of the stomach removed permanently, larger and longer studied effect
• Both require the same nutritional and psychiatric support and follow-up commitment to reach desired results

ESG is often considered by people whose metabolic disease is real but who do not meet the usual thresholds for an operation, or who meet them and do not want an operation. It is also considered by people who cannot safely undergo abdominal surgery, and by people who want an option that removes nothing.

Candidacy is not decided by a single number. It is decided by your metabolic picture, your medical history, your prior abdominal surgery, your reflux status, your medications, and what you actually want out of treatment. Someone with severe reflux or a significant hiatal hernia may need that addressed first, because folding the stomach does not correct a failing valve.

It is also worth saying who it does not suit. If your metabolic disease is advanced and you are considering the full range of treatment options, an operation deserves serious discussion rather than being avoided by default. Nobody is served by choosing the smaller intervention and then being disappointed by a smaller result.

Nothing is scheduled before the evaluation is complete. That means a full history, a review of your medications including any GLP-1 therapy, and laboratory work that looks at the metabolic picture rather than a single value.

Upper endoscopy is performed before ESG. The stomach and esophagus are inspected directly, hiatal hernia and inflammation are identified, and anything that needs treating first is found before rather than during the procedure.

If reflux symptoms are prominent, reflux testing is added. Reflux is treated here as a condition in its own right, not an afterthought to metabolic care, and it changes the plan when it is present.

• Nutrition consultation, before rather than after
• A clear conversation about what the procedure can and cannot do

You arrive having had nothing to eat or drink for the period specified in your instructions. An empty stomach is not a formality here, it is a safety requirement and the single most common reason a procedure is postponed.

The procedure is performed with sedation or anesthesia. Your care team will discuss what to expect for comfort and recovery.

The suturing itself takes place under direct vision. A pattern of full thickness sutures is placed and then cinched, and the stomach shape is checked as the pattern builds. When the shape is right, the scope comes out.

You wake in recovery and are monitored. Discharge timing and return to work depend on the procedure and your recovery. You will need someone to drive you, and you should plan not to work, sign anything, or make decisions that day.

The first several days ask for patience. Cramping, nausea, and a sense of fullness that arrives almost immediately are common and expected as the stomach adjusts to being folded. Medication is provided for nausea, and it is used rather than endured.

Diet advances in stages, beginning with clear liquids, moving to full liquids, then to soft foods, then to regular textures over a period of weeks. The stages are not arbitrary. They protect the suture line while it settles and they retrain how you eat.

Return to desk work and normal activity is individualized, and there is no abdominal wall incision to protect, so activity restrictions are lighter than after an operation. That is the practical advantage of an incisionless approach and it is a real one.

Follow up is scheduled, frequent early, and it includes nutrition. Anyone who tells you a procedure works without follow up is selling something.

Supplementation and lab monitoring continue for life after a sleeve. That means a multivitamin, calcium, vitamin D, vitamin B12, and iron, with periodic bloodwork. ESG carries a lower malabsorption risk but still requires nutritional counseling and monitoring.

No number is promised here, and results vary by patient and procedure. The honest predictors are consistent across the evidence: engagement with nutrition follow up, protein and meal structure, physical activity, sleep, and treatment of the other metabolic conditions in the picture.

The procedure changes the stomach. It does not by itself change the hormonal environment that produced the disease, which is why ESG is offered inside a program rather than as a standalone event. The stomach is the lever. The program is what moves it.

In a multicenter randomized trial in class one and class two obesity, ESG produced a substantially larger reduction in BMI compared with lifestyle change alone at one year, maintained at two years, with improvement in metabolic conditions. Individual results vary.

Serious adverse events occur in roughly two percent of ESG procedures. Reported events include bleeding, a collection around the stomach, and malnutrition. Pain and nausea are common in the short term. ESG is not appropriate for everyone, and a large hiatal hernia or an active gastric ulcer are reasons it would not be offered.

Results can also be undone. The stomach is a muscular organ and it responds to what is repeatedly asked of it. Sustained overfilling works against the reshaping. This is said plainly before the procedure rather than apologetically afterward.

GLP-1 medications have changed the landscape and the practice does not treat them as competition. They work on appetite signaling and metabolic regulation. ESG works on the capacity and emptying of the stomach. Those are different mechanisms, and they can be complementary.

Some people come having done well on medication and wanting a structural change so their result does not depend indefinitely on a prescription. Some come having been unable to tolerate the medication. Some use both together, with the medication managed by the prescribing physician while the procedure addresses the mechanical side.

There is one practical point that matters for safety. These medications slow stomach emptying, which can raise aspiration risk under anesthesia. Current multi society guidance from 2024 individualizes management rather than stopping the medication in every case. Many patients continue and follow a clear liquid diet for twenty four hours beforehand. This is coordinated directly with anesthesia.

Weight regain is common after anti-obesity medication is discontinued, although the amount and timing vary by medication and individual. That is physiology, not a failure of effort. For someone who has plateaued or discontinued, ESG can provide an anatomic complement.

ESG has historically been self pay because most insurers treated it as investigational. As of January 2026 it has a permanent billing code, and a small but growing number of payers have begun to cover it. Coverage is still inconsistent, so benefits are verified individually and many patients continue to choose self pay. No price appears on this page because a real figure depends on your evaluation.

Availability is limited in Colorado, and that is a genuine reason people travel for it. The evaluation is the starting point, and it is where candidacy, alternatives, and expectations are all put on the table at once.

This page is educational information, not medical advice. What is right for you is decided in consultation, after a review of your history, your symptoms, and your testing.