Anastomotic stenosis after Roux-en-Y gastric bypass: a rational approach to treatment

The results of this study have shown that the stenosis grade can predict the risk of recurrence and determine the optimal balloon size. Definitive treatment was achieved in >90% of patients with low-grade stenosis dilated to 12 mm. Medium- and high-grade stenosis predicted ≥25% recurrence, but increasing the balloon size reduced the number of additional dilations required for patients with recurrence.