Re-emergence of diabetes after gastric bypass in patients with mid- to long-term follow-up.

Background: Studies have shown that type 2 diabetes (T2DM) improves or resolves shortly after Roux-en-Y gastric bypass (RYGB). Few data are available on T2DM recurrence or the effect of weight regain on T2DM status.

Methods: A review of 42 RYGB patients with T2DM and >or=3 years of follow-up and laboratory data was performed.

Adjustable gastric banding as revisional bariatric procedure after failed gastric bypass--intermediate results.

Background: Although gastric bypass is the most common bariatric procedure in the United States, it is has been associated with a failure rate of 15% (range 5-40%). The addition of an adjustable gastric band to Roux-en-Y gastric bypass has been reported to be a useful revision strategy in a small series of patients with inadequate weight loss after proximal gastric bypass.

Methods: We report on 22 patients who presented with inadequate weight loss or significant weight regain after proximal gastric bypass.

Differential effects of gastric bypass and banding on circulating gut hormone and leptin levels.

Objective: To quantify plasma concentrations of hormones that regulate energy homeostasis in order to establish possible mechanisms for greater weight loss after Roux-en-Y gastric bypass (RYGBP) compared with gastric banding (BND).

Research Methods And Procedures: Four groups of women were studied: lean (n = 8; mean BMI, 21.6 kg/m2); BND (n = 9; BMI, 35.

Adjustable gastric banding as a revisional bariatric procedure after failed gastric bypass.

Background: Inadequate weight loss after proximal gastric bypass presents a clinical challenge to bariatric surgeons. Pouch size, stoma size and limb length are the variables that can be surgically altered. Aside from conversion to distal bypass, which may have significant negative nutritional sequelae, revisional surgery for this group of patients has not often been reported.