One-anastomosis gastric bypass with modified fundoplication significantly reduces dumping syndrome compared to standard one-anastomosis gastric bypass.

• Dumping syndrome occurred in 19.6% of the fundoring group vs. 35% in the standard group (p=0.001).
• At one year, BMI in the fundoring group was 27.0 vs. 29.0 in the standard group (p=0.04).

Surgeons should consider the fundoring technique for reduced dumping syndrome in eligible patients, enhancing post-operative quality of life.

• Sigstad scores were 2.8 for the fundoring group compared to 5.1 for the standard group (p=0.001).