IBC Oxford University Poster Abstract 2 - Duodenal-ileal self-forming magnetic anastomosis in patients with inadequate weight loss or weight regain following sleeve gastrectomy

Abstract Background Magnetic anastomosis has the potential to reduce anastomosis complications such as leaks and bleeding, as well as reduce complex procedure steps and time to create a safe anastomosis. We report the procedure feasibility and 30-day results of a new surgical technique and new self-forming nitinol magnetic anastomosis procedure (SNAP-PS) and delivery devices on post-sleeve gastrectomy patients. Methods Prospective non-randomized single-centre trial. Surgery consisted of creating a side-to-side duodenal-ileal anastomosis 300 cm from the IC valve using a new self-forming magnetic (SFM) octagonal anastomosis. The proximal SFM was deployed through the endoscope, and the distal SFM through a 5 mm laparoscopic trocar. Results A total of 3 patients were recruited, with a mean age of 36.3 25–42) years, sex-ratio (100% F) of 100%, and initial BMI of 41.0 ± 1.4 kg/m2. All procedures were performed using a combination of endoscopy and laparoscopy. There was no conversion or peri-operative mortality. All SFMs were delivered and connected with no delivery malfunctions and completed in an anastomosis creation time on average of 30.6 minutes (enterotomy to magnet coupling). 0 procedure adverse events (AE) occurred, and 0 AD occurred during the 30-day follow-up period. All patients tolerated the surgery and were discharged within 24 hours. Conclusion Preliminary and procedural feasibility data for these new devices suggest that SNAP-PS is feasible and safe. Based on prior studies, it provides a minimally invasive surgical option for patients needing additional weight loss and improved comorbidities. Additional follow-up is required.