Objective A significant number of post-bariatric surgery patients present with eating disorders (ED) symptoms that require specialized treatment. These cases are thought to be underreported due to their frequent sub-syndromal presentation. This paper describes eating disorder syndromes that develop subsequent to bariatric surgery. Methods The clinical charts of 12 individuals who were hospitalized on a specialized inpatient eating disorders unit were reviewed. Results Based on the new DSM-5 proposed criteria, six patients would meet criteria for an anorexia nervosa (AN) diagnosis: three with binge eating/purge AN subtype and three with restrictive AN subtype. An additional four met criteria for atypical anorexia nervosa, since they were at a normal weight, and two patients met criteria for bulimia nervosa. Discussion Several similarities to the classical EDs were found. The findings that most distinguished these patients from those with classical EDs were their ages, and the age of onset of the ED for some patients.

Background and Aims: Although bariatric surgery is an effective intervention for severe obesity, a subset of patients demonstrates suboptimal weight outcomes. Postoperative loss of control eating (LOCE) and binge eating may influence weight outcomes, though research has not examined differences by surgical procedure, or factors that predict postoperative LOCE. This study aimed to: (1) characterize LOCE and binge eating disorder (BED) over a seven-year period following bariatric surgery; (2) examine concurrent, prospective, and cumulative relationships between LOCE and weight loss; (3) assess whether these associations are moderated by surgery type; and (4) evaluate predictors of LOCE. Methods: Participants were 2,156 patients who underwent laparoscopic adjustable gastric banding (LAGB) or Roux-n-Y gastric bypass (RYGB) in the multi-center Longitudinal Assessment of Bariatric Surgery-2 (LABS-2) study. Generalized linear mixed models examined relationships between LOCE and percent weight loss and predictors of LOCE.Results: LOCE and BED initially declined then increased after surgery, with a notable number of de-novo cases. LOCE was related to less concurrent but not prospective or cumulative percent