The DJBL, when used for a period of 6 months, is effective in the control of diabetes, weight loss, improvement of insulin resistance, and decrease of cardiovascular risk among morbidly obese patients with type 2 diabetes mellitus.

HEADINGS -Anastomosis, Roux-en-Y. Morbid obesity, Postoperative complications.ABSTRAT -Background -The silicone ring is used as containment factor of the Rouxen-Y gastric bypass to induce greater ponderal loss. However, it may have some inconveniences from this stressed restriction. Aim -To analyze the complications related to silicone ring in patients who underwent Roux-en-Y gastric bypass surgery with silicon ring. Methods -From 1994 to 2005, 7 000 patients were submitted to Roux-in-Y gastric bypass with silicone ring in order to treat morbid obesity. Only 50% were followed from two to 11 years. The mean excess weight loss was around 85%. But ring complications were registered in 160 patients (2,28% of the total and 4,56% of the followed patients). Therefore, this series consist of 38 male patients (23.8%) and 122 female patients (76.2%) with average age of 44 years old and BMI of 54.4 kg/m 2 . Results -Five types of ring complications were found. The most frequent was displacement (61%) causing obstructive symptoms. The second most frequent complication was ring erosion to the lumen (22%) causing epigastric pain and nausea. Conclusions -The ring complications occur in low frequency. Ring removal, either surgical or endoscopically done, is the most usual treatment, but tends to cause partial regain of the weight lost. ABCDDV/815 RESUMO

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