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Everself Everself

Everself SIS

Revise your Gastric Sleeve. Restart your success.

Regained weight after gastric sleeve surgery? Reclaim your results with Everself SIS (Sleeve-in-Sleeve) — a non-surgical, minimally invasive revision designed to help you get back on track.

Am I a candidate?

Tackling weight regain.
Weight regain after bariatric surgery can happen. Our non-surgical revision helps you get back on track—safely, effectively, and without another surgery.
No incisions, no scars
Under anesthesia, a thin endoscope is inserted through the mouth to perform SIS. There are no incisions or visible marks.
One-time procedure, minimal downtime
The 45-minute procedure ends with 1-2 hours of recovery before you go home. After 2-3 days of rest, you're back to your regular schedule.

A quick 45-minute procedure.
Reverse weight regain after gastric sleeve.
No surgery, no scars.

  • Clinically-proven efficacy

  • Authorized by FDA

Important safety information

Endoscopic revision of sleeve gastrectomy, or sleeve-in-sleeve (SIS), is a non-surgical endoscopic procedure performed through the mouth using a specialized suturing device to reduce the size of the sleeve stomach following a prior sleeve gastrectomy. By reducing the size of the gastric sleeve, SIS helps restore restriction and support renewed weight loss. The procedure has been shown to be a safe and effective option when performed by trained bariatric endoscopists.

A meta-analysis evaluating SIS demonstrated an average weight loss of 13.2% from baseline weight at one year, a severe adverse event rate of 1.6%, and zero mortality. Most side effects are mild and temporary, such as abdominal discomfort, nausea, or vomiting. Rare but serious risks include bleeding, infection, or perforation.

Because SIS modifies prior surgical anatomy, it should only be performed by clinicians with expertise in bariatric endoscopy. At Everself, all patients complete thorough medical history review and blood work for final clearance, and every physician is certified in our proprietary technique to support safety and long-term success. As with any medical procedure, risks exist, and our team will guide you through them so you can make an informed decision.

Alt text for Image
15%
Average weight loss
82%
Participants losing at least 10% body weight
1-3 days
Typical recovery time off work

Leading the future of weight care

Weight loss solution comparison
Endoscopic Revision of Gastric Sleeve (SIS) Surgical Revision
Approach
Tightens the stomach from the inside with sutures—no cutting or incisions.
Removes more of the stomach or converts to another weight-loss surgery.
Invasiveness
Non-surgical, minimally invasive.
Major surgery requiring abdominal incisions.
Hospital stay
Outpatient — go home the same day.
1–3 days in the hospital.
Recovery time
Return to work in 1–3 days.
Typically 2–3 weeks recovery.
Average weight loss
15% of total body weight
12% of total body weight (varies by procedure type).
Major complication rate
Rare (~1-2%)
High (10-30%)
“I feel empowered, supported, and excited for what lies ahead. I’m embracing a healthier lifestyle and, thanks to Everself, I know this time it’s going to stick.”

Clint

Lost 38 lbs 13% weight loss
“The recovery time was minimal, and I felt like nothing had happened, but my appetite changed drastically. ”

Karim

Lost 17 lbs 10% weight loss
“I've lost an incredible 45 lbs and 25 inches, and I feel amazing. The entire team has been fantastic.”

Erin

Lost 45 lbs 13% weight loss
“I no longer feel like a fraud in my job; I have more stamina for softball and volleyball; and I am excited to go dress shopping!”

Mindi

Lost 53 lbs 19.4% weight loss

Setting the standard in lasting weight loss

Description Everself SIS Other Revision Programs

Physicians certified by the SIS inventor

True False

Concierge support from multi-disciplinary care team

True

?

Care team check-ins before & after procedure

15+

0-6

Ongoing support group

True

?

Integrated weight care Rx management (excl medication cost)

True False

Is Everself SIS right for me?

Flexible financing options that work for you

$11,995

Pay upfront with transparent, all-inclusive pricing—no hidden fees or surprises. Know exactly what your procedure costs before you begin.

Check eligibility

What's included:

  • SIS procedure
  • Comprehensive metabolic lab test
  • 12-month post-procedure support from our multidisciplinary care team
  • Smart scale and patient app access
  • Post-procedure 24/7 clinical on-call support
  • Patient support groups
  • Integrated weight loss prescription management
    (medications not included)

Frequently asked questions

How long does a gastric sleeve revision procedure take?

The procedure itself takes approximately 30 to 45 minutes. However, you should plan on spending about half a day with us including preparation and recovery.

What is recovery like after a gastric sleeve revision procedure?

Patients go home on the same day. Most take a few days off to recover at home before returning to work. After the procedure, patients follow a full liquid meal plan, which includes protein shakes and similar products, then transition to a soft diet, which includes easy-to-eat foods such as oatmeal and bananas, and then return to regular eating.

How common are gastric sleeve revisions?

About 5-12% of people who had a sleeve gastrectomy underwent a revision, and 87% of those revisions were due to ongoing obesity.4 Those with a previous gastric band were more likely to need a revision. Most people opted for gastric bypass or resleeve, but since the introduction of the sleeve-in-sleeve procedure in 2018, an increasing number are choosing endoscopic revisions for safety.

How does an endoscopic gastric sleeve revision compare to a revisional surgery?

Endoscopic revision is safer, done through the mouth with a 1% complication rate, and offers quick recovery. Surgical revisions, such as recreating a smaller sleeve or converting sleeve gastrectomy to a gastric bypass or duodenal switch, are riskier with an average complication rate of 29%.3

What are the risks of the gastric sleeve revision procedure?

Discomfort, nausea, chest pressure, or spasms may occur. The major complication rate, including infection or bleeding, is less than 1%.

Is gastric sleeve revision covered by insurance?

Unfortunately, insurance does not cover endoscopic sleeve revision procedures yet. However, we offer several financing options. Learn more about our pricing and financing options.

Bariendo is now Everself.

Since pioneering ESG at Harvard over a decade ago, we've helped thousands achieve life-changing, long-lasting weight loss. Our new name and brand reflect what we've always stood for: helping you become ever healthy, ever confident, ever yourself.

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