Different criteria for assessment of Roux-en-Y gastric bypass success: does only weight matter?

Background: Medium and long-term efficacy of Roux-en-Y gastric bypass (RYGBP) has previously been demonstrated. However, weight-loss success criteria could be influenced by super-obesity prevalence at baseline. Here, we describe a 5-year follow-up concerning weight loss results, comorbidities, and mortality of a RYGBP Brazilian population with a high prevalence (60.