BACKGROUND Roux-en-Y gastric bypass (RYGB) restricts food intake, and when the Roux limb is elongated to 150 cm, the procedure is believed to induce malabsorption. OBJECTIVE Our objective was to measure total reduction in intestinal absorption of combustible energy after RYGB and the extent to which this was due to restriction of food intake or malabsorption of ingested macronutrients. DESI...

The Roux en Y Gastric Bypass (RYGB) is the most studied and performed bariatric procedure in North America today [1]. It is widely considered the gold standard in bariatric surgery; achieving superior weight-loss with acceptable complication rates. Furthermore, patients undergoing RYGB has experienced significant improvement and possibly resolution of diabetes mellitus, hypertension, dyslipidem...

BACKGROUND Roux-en-Y gastric bypass is a surgical technique widely used in the treatment of obesity. It is unclear, however, if the length of the biliopancreatic and alimentary limb interferes with the magnitude of weight loss. AIM To evaluate if the length of these limbs is related to the percentage of weight loss one year after surgery. METHOD One hundred and twenty obese people underwent...

BACKGROUND/PURPOSE Obesity has contributed significantly to morbidity and premature deaths in the adolescent population. Because many patients do not respond to dietary modification, exercise regimens, or pharmacologic treatment, weight reduction surgery has become a viable alternative, although the morbidity of conventional gastric bypass has tempered enthusiasm for this approach. Experience w...

CONTEXT The effect of bariatric surgery on the reproductive function of obese men is not entirely elucidated. OBJECTIVE The aim of the study was to define the effect of Roux-En-Y gastric bypass surgery on the reproductive hormones and sexual function in obese men. DESIGN AND SETTING The cohort was followed for 2 yr at a clinical research center. PATIENTS Sixty-four severely obese men (22 ...

OBJECTIVES Roux-en-Y gastric bypass surgery is the most commonly performed procedure for the treatment of morbid obesity. This anatomical alteration may affect the absorption and consequently the bioavailability of oral drugs. This study aims to investigate the oral bioavailability of moxifloxacin in 12 healthy volunteers who underwent gastric bypass surgery. PATIENTS AND METHODS In this rand...

BACKGROUND Roux-en-Y gastric bypass (RYGB) is one of the best-known and most commonly performed bariatric procedures. However, this procedure carries infrequent but serious long-term complications, which may require revisional procedures. This study reports the indications and outcomes of gastric bypass reversal that have not been described well in the literature. METHODS A multicenter retros...

BACKGROUND Several studies indicate that increasing the alimentary limb length in gastric bypass surgery produces only a minor improvement of excess BMI loss. Few studies have addressed the efficacy of increasing the length of the pancreatico-biliary limb. METHODS Here, we present a prospective randomized study of 187 consecutive laparoscopic Roux-Y gastric bypass operations operated over 2 y...

OBJECTIVE To complete a long-term (>10 years) follow-up of patients undergoing isolated roux-en-Y gastric bypass for severe obesity. BACKGROUND Long-term results of gastric bypass in patients followed for longer than 10 years is not reported in the literature. METHODS Accurate weights were recorded on 228 of 272 (83.8%) of patients at a mean of 11.4 years (range, 4.7-14.9 years) after surge...