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Peer-reviewedCC BY-NC-ND 4.0Obesity Surgery

Magnetic Duodeno-Ileostomy as a Conversion Procedure After Sleeve Gastrectomy: First Single-Centre Experience in Colombia

  • Ricardo Nassar1
  • Felipe Giron1,2
  • Mateo Visbal-Zuluaga1,2
  • Juan David Hernandez1,2
  • Alberto Ricaurte1
  • Mary Sandoval1
  • Laura Tatiana Casadiego1,2
  • Daniela Ayala1,2
  • Jose Gabriel Rodriguez3
  • Natan Zundel4
  • Michel Gagner5
5 affiliations
  1. 1Department of Surgery, Fundación Santa Fe de Bogotá, Bogotá, Colombia
  2. 2School of Medicine, Universidad de Los Andes, Bogotá, Colombia
  3. 3School of Medicine, Universidad del Rosario, Bogotá, Colombia
  4. 4Department of Surgery, University at Buffalo, State University of New York, Buffalo, USA
  5. 5Westmount Square, Surgical Center, Westmount Square Medical Center, Canada
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Abstract

Background: Magnetic duodeno-ileostomy (MAGDI) uses magnetic compression to create a side-to-side duodeno-ileal anastomosis without sutures or staples at the anastomotic site. Outcomes differ between primary and revisional settings. We describe our initial experience with MAGDI as a conversion procedure after sleeve gastrectomy.

Methods: Three consecutive patients underwent MAGDI after laparoscopic sleeve gastrectomy for insufficient clinical response or recurrent weight gain, following multidisciplinary evaluation. Procedures were laparoscopic, with magnetic docking 300 cm proximal to the ileocecal valve. Patients were reviewed monthly, with contrast study and endoscopy at three to four months. Outcomes are reported per patient at six months.

Results: Deployment was successful in all three patients. Operative times were 113, 72 and 70 min, and anastomosis creation times 17, 14 and 13.6 min; the longest procedure required an enterotomy for distal magnet positioning. All patients were discharged on the day of surgery, without emergency attendance, readmission or reintervention through six months. No anastomotic leak, bleeding or other surgical complication occurred. At six months, total weight loss was 7.6%, 5.3% and 20.2%, and body mass index fell by 3.1, 1.8 and 6.5 kg/m². One patient developed meal-related gastrointestinal symptoms compatible with early dumping, persisting at six months under dietary management. Contrast study and endoscopy confirmed a patent anastomosis in all patients, without stricture or retained device material.

Conclusion: MAGDI was technically feasible in three selected patients undergoing conversion after sleeve gastrectomy. The sample size and follow-up do not permit conclusions regarding safety or efficacy; larger prospective cohorts are required.

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Cite

BibTeXRIS
BibTeX
@article{nassar2026magnetic,
  title = {{Magnetic Duodeno-Ileostomy as a Conversion Procedure After Sleeve Gastrectomy: First Single-Centre Experience in Colombia}},
  author = {Ricardo Nassar and Felipe Giron and Mateo Visbal-Zuluaga and Juan David Hernandez and Alberto Ricaurte and Mary Sandoval and Laura Tatiana Casadiego and Daniela Ayala and Jose Gabriel Rodriguez and Natan Zundel and Michel Gagner},
  journal = {Obesity Surgery},
  year = {2026},
  month = oct,
  doi = {10.1007/s11695-026-08973-y},
  url = {https://doi.org/10.1007/s11695-026-08973-y},
  note = {CC BY-NC-ND 4.0},
}
RIS
TY  - JOUR
TI  - Magnetic Duodeno-Ileostomy as a Conversion Procedure After Sleeve Gastrectomy: First Single-Centre Experience in Colombia
AU  - Ricardo Nassar
AU  - Felipe Giron
AU  - Mateo Visbal-Zuluaga
AU  - Juan David Hernandez
AU  - Alberto Ricaurte
AU  - Mary Sandoval
AU  - Laura Tatiana Casadiego
AU  - Daniela Ayala
AU  - Jose Gabriel Rodriguez
AU  - Natan Zundel
AU  - Michel Gagner
PY  - 2026
DA  - 2026/10/05
JO  - Obesity Surgery
DO  - 10.1007/s11695-026-08973-y
UR  - https://doi.org/10.1007/s11695-026-08973-y
AB  - Background: Magnetic duodeno-ileostomy (MAGDI) uses magnetic compression to create a side-to-side duodeno-ileal anastomosis without sutures or staples at the anastomotic site. Outcomes differ between primary and revisional settings. We describe our initial experience with MAGDI as a conversion procedure after sleeve gastrectomy.  Methods: Three consecutive patients underwent MAGDI after laparoscopic sleeve gastrectomy for insufficient clinical response or recurrent weight gain, following multidisciplinary evaluation. Procedures were laparoscopic, with magnetic docking 300 cm proximal to the ileocecal valve. Patients were reviewed monthly, with contrast study and endoscopy at three to four months. Outcomes are reported per patient at six months.  Results: Deployment was successful in all three patients. Operative times were 113, 72 and 70 min, and anastomosis creation times 17, 14 and 13.6 min; the longest procedure required an enterotomy for distal magnet positioning. All patients were discharged on the day of surgery, without emergency attendance, readmission or reintervention through six months. No anastomotic leak, bleeding or other surgical complication occurred. At six months, total weight loss was 7.6%, 5.3% and 20.2%, and body mass index fell by 3.1, 1.8 and 6.5 kg/m². One patient developed meal-related gastrointestinal symptoms compatible with early dumping, persisting at six months under dietary management. Contrast study and endoscopy confirmed a patent anastomosis in all patients, without stricture or retained device material.  Conclusion: MAGDI was technically feasible in three selected patients undergoing conversion after sleeve gastrectomy. The sample size and follow-up do not permit conclusions regarding safety or efficacy; larger prospective cohorts are required.
SN  - 0960-8923
SN  - 1708-0428
ER  -