Sleeve Gastrectomy with Jejunoileal Bypass (SG-JIB) in Bangkok, Thailand
Sleeve gastrectomy with jejunoileal bypass (SG-JIB, also written SG+JIB) is a sleeve gastrectomy combined with a connection between the upper small bowel (jejunum) and the lower small bowel (ileum), so food skips the middle section of the small bowel. Food still passes through the stomach outlet and the duodenum. At YOUNIFY Clinic, a Healthy Aging & Wellness Center based in Bangkok, Thailand, SG-JIB is discussed by the clinic's bariatric surgical team as a newer option with limited evidence, and priced in a written quotation before any deposit.
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At a glance
- Procedure
- Sleeve gastrectomy with jejunoileal bypass (SG-JIB)
- Starting from (THB)
- SG-JIB: Confirmed in your written quotation after assessment.
- Hospital stay
- Confirmed at consultation
- Time in Bangkok
- Confirmed at consultation
- Who performs
- Confirmed at consultation
- Where
- JCI- or AACI-accredited partner private hospital, Bangkok
- Last reviewed
- October 4, 2026
Key takeaways
- SG-JIB is a sleeve gastrectomy plus a jejunum-to-ileum connection. It is not SADI-S, not SASI, and not the older jejunoileal bypass operation, which was abandoned.
- Published descriptions use different bowel lengths, so the exact construction should be confirmed in your plan.
- The evidence is limited: a 2011 technique report, Brazilian cohort studies, and a randomised trial in Egypt that is still recruiting.
- Sleeve gastrectomy, gastric bypass and SADI-S have more long-term data. SG-JIB is priced in a written quotation after assessment.
What SG-JIB is
SG-JIB is one of the "sleeve plus" operations: a sleeve gastrectomy with a bowel bypass added. A 2025 review in Obesity Surgery (Kurahashi and colleagues) groups these by the type of bypass, the length of the food pathway, and whether the duodenum is bypassed. SG-JIB has two parts.
- The sleeve. A large part of the stomach is removed, leaving a narrow tube, so you feel full on smaller portions.
- The jejunoileal bypass. The upper small bowel (jejunum) is joined to the lower small bowel (ileum). Food passes through the duodenum and the first part of the jejunum as normal, then takes the shortcut into the ileum.
A simple way to picture it:
- Food: oesophagus → narrow sleeve → pylorus → duodenum → upper jejunum → connection → lower ileum → large bowel.
- Skipped: the middle section of the small bowel, between the connection points.
How it differs from similar names
| Name | What is joined | Does food pass through the duodenum? |
|---|---|---|
| SG-JIB (this page) | Sleeve, plus upper jejunum joined to lower ileum | Yes |
| SG-JB or SG+JJB (sleeve with jejunal or jejunojejunal bypass) | Sleeve, plus upper jejunum joined to jejunum further down; a shorter bypass | Yes |
| SADI-S | Sleeve, plus the duodenum, just after the pylorus, joined to the ileum | Only its first few centimetres |
| SASI (single anastomosis sleeve ileal bypass) | Sleeve, plus the stomach itself joined to the ileum, with the normal route left open | Partly |
| The original jejunoileal bypass (1960s and 1970s) | No sleeve; almost all small bowel bypassed | Yes, but less than 50 cm of bowel was left for absorption |
The last row matters. Hsu and Pan note that the original jejunoileal bypass was abandoned because of severe, sometimes irreversible complications such as liver failure and profound nutritional deficiencies. SG-JIB keeps far more bowel in use, but the shared name is one reason they called for clearer terminology. Ask your surgeon to write down which operation, and which lengths, are proposed for you.
Who it may suit
- People who can commit to lifelong supplements, blood tests and follow-up.
- People who accept that this is a newer operation with fewer long-term studies.
Who it may not suit
- Difficulty taking supplements or attending blood tests long term.
- A preference for longer-term evidence. A sleeve gastrectomy, gastric bypass or SADI-S may suit you better; to avoid surgery, see endoscopic sleeve gastroplasty.
What the evidence shows
The evidence for SG-JIB is limited.
- Technique report. Zilberstein and colleagues (Arquivos Brasileiros de Cirurgia Digestiva, 2011) described the operation in 8 patients. BMI fell from 39.57 to 28 at one year, with no complications reported, but eight patients is too few to judge results or risks.
- Compared with gastric bypass. Tosta and colleagues (Journal of Laparoendoscopic & Advanced Surgical Techniques, 2024) reviewed 176 patients from one private practice in Brazil, 74 after SG-JIB and 102 after gastric bypass, over 60 months. They found no statistically significant difference in long-term weight loss between the two groups.
- Compared with sleeve gastrectomy alone. Bindi and colleagues (same journal, 2026) compared 74 patients after SG-JIB with 66 after a sleeve, also from a private practice in São Paulo, at 12 months. The authors concluded that SG-JIB was associated with greater weight loss and similar rates of complications after surgery.
- A randomised trial is under way. A trial at Minia University in Egypt (ClinicalTrials.gov NCT06530212) plans to randomise 200 patients to SG-JIB or a single anastomosis sleeve jejunal bypass. It was still recruiting when this page was written.
In short, there are no long-term randomised results for SG-JIB yet, and most published data come from one Brazilian surgical group. Results vary by individual.
Risks
- Surgical risks: bleeding, infection, a leak from the sleeve or the bowel connection, blood clots, and anaesthesia risks.
- Reflux, which may start or worsen because of the sleeve.
- Nutrition: depending on the bowel left below the connection, protein and the fat-soluble vitamins A, D, E and K are absorbed less well; iron, calcium, vitamin B12 and others can also run low.
Planning your trip from abroad
- Send your details on WhatsApp: height, weight, health conditions, medicines and any previous surgery.
- Video consultation with a member of the clinic's bariatric surgical team, comparing SG-JIB with the alternatives for you.
- Written quotation naming the operation and plan, before any deposit.
- Follow-up from home, with supplements, blood tests and dietitian support.
Sources
- Hsu K-F, Pan H-M. Distinguishing sleeve gastrectomy with jejunal bypass (SG-JB) from sleeve gastrectomy with jejunoileal bypass (SG-JIB): an urgent call for terminological clarity. Obesity Surgery. 2025;35:4040-4043.
- Zilberstein B, et al. Gastroplastia vertical com desvio jejunoileal: novo procedimento técnico [Vertical gastroplasty with jejunoileal bypass: new technical procedure]. Arquivos Brasileiros de Cirurgia Digestiva. 2011;24(3):242-245.
- Tosta GA, et al. Efficacy and safety of sleeve gastrectomy with jejunoileal bypass compared with Roux-en-Y gastric bypass: results from a cohort study. Journal of Laparoendoscopic & Advanced Surgical Techniques. 2024;34(1):1-6.
- Bindi B, et al. Efficacy and safety of sleeve gastrectomy with jejunoileal bypass compared with conventional sleeve gastrectomy: results from a cohort study. Journal of Laparoendoscopic & Advanced Surgical Techniques. 2026;36(8):616-619.
- Sleeve gastrectomy with jejuno-ileal bypass versus single anastomosis sleeve jejunal bypass. ClinicalTrials.gov NCT06530212.
- Haddad A, et al. Innovative bariatric procedures and ethics in bariatric surgery: the IFSO position statement. Obesity Surgery. 2022;32(10):3217-3230.
- Kurahashi Y, Hojo Y, Shinohara H. Sleeve plus procedures: a review of technical evolution along a schematic diagram. Obesity Surgery. 2025;35(11):4806-4813.
Frequently asked questions
How much does SG-JIB cost in Thailand?
Contact us for a written quotation, confirmed before any deposit. For reference, at YOUNIFY Clinic sleeve gastrectomy starts from THB 350,000 and gastric bypass from THB 449,000.
What does SG-JIB stand for?
Sleeve gastrectomy with jejunoileal bypass. You may also see SG+JIB, SGJIB, VSG-JIB or SG-JI.
Is SG-JIB the same as SASI?
No. In SASI the stomach itself is joined to the ileum. In SG-JIB the stomach is not joined to the bowel; the connection is between two parts of the small bowel.
Is SG-JIB the same as SADI-S?
No. In SADI-S the duodenum is joined to the ileum, so food skips most of it. See SADI-S surgery.
Is it the old jejunoileal bypass?
No. That operation had no sleeve and left less than 50 cm of small bowel for absorption.
How much weight will I lose?
Data are limited. In one Brazilian cohort, long-term weight loss did not differ significantly from gastric bypass. No long-term randomised results exist yet.
How do I start?
Send your height, weight, health conditions and any previous surgery on WhatsApp. A member of the clinic's bariatric surgical team reviews them with you by video before any travel is planned.
YOUNIFY Clinic · 2nd Floor, Room 214, United Center Building, 323 Silom Road, Silom, Bang Rak, Bangkok 10500, Thailand · Near BTS Sala Daeng (5-min walk) · Open daily 11:00–20:00
WhatsApp +66 81 556 9696 · LINE @younifyclinic · Instagram @younifyclinicthailand · info [at] younifyclinic.com
Medically reviewed by Dr. Noppachai Siranart · Last reviewed
Individual results may vary. Please consult a doctor before treatment.