TOPLINE:

Ring-augmented one anastomosis gastric bypass (RaOAGB) improves 12-month weight-loss outcomes compared with non-ring-augmented OAGB (NRa-OAGB) in patients with recurrent weight gain or suboptimal weight loss after sleeve gastrectomy.

METHODOLOGY:

• Ring augmentation involves placing a fixed, nonadjustable silicone ring around the gastric pouch to preserve mechanical restriction and limit dilation; preliminary data suggest it may improve long-term weight-loss durability.
• Researchers conducted a retrospective cohort study comparing patients who underwent RaOAGB with those who underwent NRa-OAGB.
• Primary outcomes included percentage of excess weight loss, percentage of total weight loss, and change in BMI at 3, 6, and 12 months postoperatively.
• Ring-related adverse events, including vomiting, dysphagia, and the need for ring removal, were evaluated in the RaOAGB cohort.

TAKEAWAY:

• Of 94 patients included, 45 underwent RaOAGB (mean age, 39.51 years; 51.1% male) and 49 underwent NRa-OAGB (mean age, 40.59 years; 36.7% male).
• Both groups had significant reductions in BMI from baseline to 12 months (P < .001 within groups); however, reductions were greater in the RaOAGB group, which achieved a median BMI of 27.6 vs 32.2 with NRa-OABG (P < .001).
• Median percentage excess weight loss and total weight loss were significantly greater with RaOAGB vs NRa-OAGB (81.7% vs 61.3% and 31.5% vs 24.2%, respectively; P < .001 for both).
• Median operative time (P = .636) and length of hospital stay (P = .610) were similar between groups; early postoperative complications were rare, with one bleeding event in the NRa-OAGB group and none in the RaOAGB group.
• Ring-related adverse events were uncommon; one patient required ring removal at 10 months due to persistent vomiting and food intolerance.

IN PRACTICE:

“This comparative cohort study suggests that RaOAGB is a safe and effective revisional option after [sleeve gastrectomy]-associated [suboptimal weight loss] or [recurrent weight gain], achieving superior 12-month weight loss versus non-augmented OAGB without prolonging operative time,” the authors of the study wrote.

SOURCE:

The study was led by Ahmed Elmasry, Arab Contractors Medical Centre, Cairo, Egypt. It was published online in Obesity Surgery.

LIMITATIONS:

The retrospective design introduced potential selection and information biases. The 12-month follow-up limited conclusions about long-term durability of outcomes. The study was conducted by a single experienced surgical team at a high-volume tertiary center, which may limit generalizability.

DISCLOSURES:

No funding source was reported. The authors reported having no competing interests.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication.