Endoscopic weight-loss procedures use instruments passed through the mouth to change part of the digestive tract. The right procedure depends first on whether your stomach is unoperated, you have a Roux-en-Y gastric bypass, or you previously had a surgical sleeve. These are different starting points with different treatment questions.
Dr. Hector Perez’s clinical work includes ESG, TORe, and complex revisional bariatric surgery. This guide explains the distinctions so you can begin a focused review of your history instead of choosing a procedure from its name alone.
Which procedure matches which anatomy?
| Your starting point | Procedure to understand | What is being changed? |
|---|---|---|
| No prior bariatric operation | Primary endoscopic sleeve gastroplasty, or ESG | Sutures reshape the stomach from inside; stomach tissue is not removed. |
| Previous Roux-en-Y gastric bypass | Transoral outlet reduction, or TORe | An enlarged connection between the stomach pouch and small intestine is reduced. |
| Previous surgical sleeve gastrectomy | Endoscopic sleeve revision | Suturing may reduce the capacity of an enlarged sleeve in selected patients. Availability requires confirmation. |
The ASGE–ESGE guideline addresses primary endoscopic therapy, while TORe guidance and revisional sleeve research address altered anatomy. Their results should not be combined into a single success rate.
Start with the problem you want treatment to solve
Describe more than your goal weight. Is the main issue weight recurrence after an earlier procedure, persistent hunger, reflux, difficulty eating, or a health condition affected by weight? Write down when the problem began and what treatment you have already tried. These details help organize the medical review.
If you have previous bariatric surgery, request the original operative report and any recent endoscopy or imaging reports. If you do not know your exact operation, say so. A procedure name remembered from years ago may not provide enough detail to plan another intervention.
How to compare options fairly
Three questions make research more useful: Were the study patients like you? Was weight loss measured from before the original operation or before the new procedure? How many participants were still being followed when the result was reported? An impressive percentage without those details can be misleading.
Read ESG versus surgical gastric sleeve if you are considering a first procedure. After bypass, use TORe versus surgical revision. For the underlying studies, see our TORe evidence review and ESG evidence review.
Questions patients ask
Is endoscopic weight loss the same as gastric sleeve surgery?
No. Endoscopic suturing and surgical removal of stomach tissue are different procedures. Similar names do not mean identical results, risks, or follow-up needs.
Can I choose TORe if I have a sleeve?
TORe is directed at the outlet created by gastric bypass. A surgical sleeve has different anatomy; the relevant discussion is sleeve revision, medication, or an appropriate surgical conversion.
Does a procedure replace ongoing obesity care?
Plan for continuing care from the beginning. Ask who will review your progress, nutrition, medications, symptoms, and next steps if the initial response is insufficient. Those responsibilities should be clear before travel.
Begin a coordinated review
Review Renew Bariatrics’ ESG information or TORe information, then ask a coordinator to organize a review. A request starts information gathering; clinical eligibility and the treatment plan require medical assessment.