Endoscopic Sleeve Gastroplasty (ESG) offers a non-surgical alternative to bariatric surgery for selected patients seeking meaningful weight loss. Dr. Kalpit Devani, an interventional gastroenterologist and ESG specialist in Greenville, South Carolina, helps patients understand how ESG compares to surgical options so they can make informed decisions.
What Is Endoscopic Sleeve Gastroplasty (ESG)?
ESG is an incisionless, outpatient procedure that uses endoscopic suturing to reduce stomach volume by approximately 70%. No incisions, no staples, no implants — the procedure is performed entirely through the mouth. A flexible endoscope is advanced into the stomach, where specialized suturing technology places folds along the stomach wall, reshaping the organ into a narrower, sleeve-like configuration. The procedure typically takes 45–60 minutes, and patients go home the same day. Expected weight loss is 15–20% of total body weight within 12–18 months when combined with a structured program.
How Does ESG Compare to Surgical Options?
ESG vs. Gastric Sleeve (Vertical Sleeve Gastrectomy): ESG is incisionless and reversible; the surgical sleeve permanently removes approximately 80% of the stomach. ESG has faster recovery (days vs. weeks) but slightly lower total weight loss (15–20% vs. 25–30%). ESG may be appropriate for patients in the BMI 30–40 range who prefer a less invasive first step.
ESG vs. Gastric Bypass (Roux-en-Y): Bypass reroutes the intestine and is more complex. Higher weight loss potential (30–35%) but significantly higher risk, longer recovery, and nutritional deficiency risk. ESG has no malabsorption. Bypass is typically reserved for higher BMI or when metabolic benefits are a primary goal.
ESG vs. Intragastric Balloon: The balloon is temporary (6–12 months); weight often regains after removal. ESG provides durable structural change with sutures that remain in place.
Who Is a Candidate for ESG?
ESG may be appropriate for patients with BMI 30–40 — the "gap" between diet/exercise and surgical eligibility. It may also be considered for BMI >40 who prefer a non-surgical first step or are not surgical candidates. Patients who have tried diet, exercise, and medical weight management without sustained success may benefit. ESG works best combined with a structured nutritionist-guided program. Not a candidate if: prior gastric surgery, large hiatal hernia, or active ulcer disease.
What About Weight Regain After Gastric Bypass? TORe Can Help
For patients who have had Roux-en-Y gastric bypass and experience weight regain, Transoral Outlet Reduction (TORe) offers an endoscopic revision option. The gastrojejunal anastomosis (outlet) dilates over time in some patients, leading to weight regain. TORe uses endoscopic suturing to reduce the outlet back to its intended size. No new incisions, outpatient procedure, complements dietary changes. This is different from ESG — TORe is specifically for gastric bypass revision patients. Dr. Devani performs both ESG and TORe in Greenville, South Carolina.
Why Choose Dr. Devani for Endoscopic Weight Loss?
Dr. Devani has placed over 1,000 endoscopic sutures and offers full-spectrum endobariatric expertise: ESG, TORe, post-sleeve revisions, and perforation closure. He has director-level experience building and scaling an EndoBariatrics program (80+ cases/year). A comprehensive approach that works alongside nutrition support enhances sustained results.
For referrals or consultations regarding ESG vs. bariatric surgery, or for evaluation as an ESG specialist in Greenville SC, contact Dr. Devani.
Frequently Asked Questions
Is ESG covered by insurance?
Some insurance plans currently cover ESG. Coverage varies by plan. Dr. Devani's office can help determine coverage options.
How much weight will I lose with ESG?
Most patients lose 15–20% of their total body weight within 12–18 months. Results are best when combined with a nutritionist-guided program and regular exercise.
Can ESG be reversed?
ESG is considered reversible because no anatomy is permanently altered. However, reversal is rarely needed or performed.
What is recovery like after ESG?
Most patients experience nausea and discomfort for 2–3 days. A liquid diet is followed for approximately three weeks before gradually advancing to solid foods. Most return to work within 2–5 days.
Dr. Kalpit Devani, MD, FACP, FACG, FASGE is a board-certified interventional gastroenterologist based in Greenville, South Carolina, specializing in diagnostic and therapeutic EUS, complex ERCP, and endoscopic suturing.
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Read more →This article is for educational purposes only and does not constitute medical advice. Please consult your physician for individualized care.