Weight Loss Outcomes

Weight Loss Outcomes Reported in Published MagDI Studies

Published studies of MagDI and Sleeve Plus report weight-loss outcomes using standard bariatric metrics such as percent total weight loss (%TWL) and percent excess weight loss (%EWL). This page summarizes the kinds of outcomes reported in the literature while noting the current limitations of follow-up duration and sample size.

Written by MagnaMetabolic Editorial Team Medically reviewed by Ariel Ortiz, MD — Bariatric & Metabolic Surgery Last reviewed: June 7, 2026

What the published literature reports

  • First-in-human and multi-center publications report meaningful weight loss following sleeve gastrectomy combined with MagDI (Sleeve Plus MagDI) at short- and mid-term follow-up.
  • Revisional series report additional weight loss in patients who had previously plateaued or regained weight after a prior sleeve gastrectomy.
  • Exact percentages vary by study, follow-up duration, patient population, and baseline BMI; readers should consult the original publications for study-specific values.

Important caveats

  • Results vary among individuals. No bariatric procedure guarantees a specific weight-loss outcome.
  • Current published data primarily reflect short- and mid-term follow-up. Long-term durability beyond currently published windows is still being studied.
  • Adherence to nutritional, behavioral, and follow-up recommendations meaningfully affects long-term outcomes.
  • Comparisons to established procedures (sleeve gastrectomy, Roux-en-Y gastric bypass) require head-to-head trials, which remain limited.

For citations to the specific studies, see Clinical Studies and Published Research.

Evidence

Scientific References

Selected primary sources informing this page. External links open in a new tab; we do not control or endorse third-party content.

  1. Obesity SurgeryGagner M, et al. First-in-human experience of magnetic duodeno-ileostomy for the treatment of obesity and metabolic disease. Obesity Surgery.
  2. Surgical EndoscopyMulti-center early outcomes of sleeve gastrectomy combined with magnetic duodeno-ileostomy (Sleeve Plus MagDI). Surgical Endoscopy.
  3. SOARDMagnetic duodeno-ileal anastomosis after previous sleeve gastrectomy for weight regain, insufficient weight loss, or diabetes recurrence. Surgery for Obesity and Related Diseases (SOARD).
  4. ASMBSAmerican Society for Metabolic and Bariatric Surgery (ASMBS) and IFSO 2022 indications for metabolic and bariatric surgery.
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