Magnetic Side-to-Side Duodeno-Ileostomy with the MagDI System: A Technical Description of the Initial Experience in Argentina
Mariano Palermo, Edgardo Serra, Facundo Serra, Mauricio Fuster, Guillermo Duza, Michel GagnerBackground:
Anastomotic complications remain the principal source of morbidity in metabolic and bariatric surgery. Bleeding, leakage, and stricture are most often related to the anastomosis itself and to the permanent hardware left behind by staplers and sutures. Magnetic compression anastomosis has been proposed as an incisionless, sutureless alternative that avoids retained foreign material.
Objective:
To describe the surgical technique for the creation of a side-to-side duodeno-ileal anastomosis using the Magnet Anastomosis System (MagDI) and to summarize early clinical outcomes.
Technique:
Two linear neodymium magnets are positioned on opposite intestinal walls—one in the proximal duodenum and one in the ileum, 250 cm from the ileocecal valve. The magnets self-align and apply sustained compression to the interposed tissue. Over the following weeks the entrapped tissue undergoes controlled necrosis, a patent anastomosis is formed, and the magnets detach and are eliminated through the gastrointestinal tract, leaving no retained material.
Results:
In early clinical experience, magnet placement and anastomotic patency were achieved in all cases, with no device-related leaks, obstructions, or deaths. When combined with sleeve gastrectomy, the procedure produced substantial weight loss and improvement of type 2 diabetes.
Conclusion:
Magnetic side-to-side duodeno-ileostomy is a feasible and reproducible technique that may reduce anastomotic morbidity in bariatric and metabolic surgery. Longer-term, larger studies are warranted to confirm durability.