4.4 Article

Banded RYGB Ring Slippage Endoscopic Removal with Self-expandable Stents: a Comparative Study Between Metallic and Plastic One

Journal

OBESITY SURGERY
Volume 32, Issue 1, Pages 115-122

Publisher

SPRINGER
DOI: 10.1007/s11695-021-05742-x

Keywords

Bariatric bypass; Gastric bypass; Band erosion; Food intolerance; Ring slippage; Bariatric surgery

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The study compared the safety and effectiveness of self-expanding metallic stents (SEMS) and plastic stents (SEPS) in treating ring slippage, finding that both methods were similarly efficient at inducing band erosion but metallic stents had more complications. Older and female patients were at higher risk of adverse events with SEMS treatment.
Purpose Banded Roux-en-Y gastric bypass (RYGB) was a common bariatric procedure in the 2000s, and the ring slippage is one of its late adverse events. Both plastic and metallic stents have been reported as adjunct methods to induce erosion and facilitate endoscopic removal of the ring. Objective To compare the safety and effectiveness of self-expanding metallic stents (SEMS) and plastic stents (SEPS) to treat ring slippage. Materials and Methods We conducted a retrospective longitudinal study analyzing consecutive patients with ring dysfunction treated with stents plus endoscopic removal. Results Ninety patients were enrolled (36 SEMS vs. 54 SEPS). The mean age was 48.56 +/- 13.07 and 45.6 +/- 12.1 in the SEMS and SEPS groups, respectively. All patients had band slippage, but 24 from SEMS group and 23 from SEPS group had further complications. There were more complications in metallic stent concerning mean absolute number of therapy-related adverse events (1.33 +/- 0.48 vs. 1.72 +/- 0.5, p > 0.05) and time until erosion (14.9 +/- 1.6 vs. 13.8 +/- 1.4 days, p > 0.05). Female sex and age > 41 years old correlated with longer time to band erosion and higher incidence of adverse events in SEMS patients. In SEPS group, only female sex was a risk factor for adverse events. Conclusion Both procedures were efficient at inducing band erosion with similar safety profiles. Older and female patients are at a higher risk of treatment-related adverse events, especially those receiving SEMS.

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