Proof of Concept for a Mindfulness-Informed Intervention for Eating Disorder Symptoms, Self-Efficacy, and Emotion Regulation among Bariatric Surgery Candidates.

Up to 64% of patients seeking bariatric (weight-loss) surgery report eating disorder (ED) symptoms (addictive-like eating, binge eating, emotional eating, grazing) that can interfere with post-surgical weight loss. This prospective proof-of-concept study aimed to evaluate the impact of a pre-surgical mindfulness-informed intervention (MII) on ED symptoms and potential mechanisms-of-action to inform optimization of the intervention. Surgery-seeking adults attended four, 2-hour, MII sessions held weekly. Participants completed validated questionnaires assessing ED symptoms, eating self-efficacy, emotion regulation, and mindful eating pre-MII, post-MII, and at a 12-week follow-up. The MII consisted of mindfulness training, with cognitive, behavioral, and psychoeducational components. Fifty-six patients (M = 47.41 years old, 89.3% female) participated. Improvements in addictive-like eating, binge eating, emotional eating, and grazing were observed from pre- to post-MII. ED symptom treatment gains were either maintained or improved further at 12-week follow-up. Eating self-efficacy and emotion regulation improved from pre-MII to follow-up. Scores on the mindful eating questionnaire deteriorated from pre-MII to follow-up. In mediation analyses, there was a combined indirect effect of emotion regulation, eating self-efficacy, and mindful eating on grazing and binge eating, and an indirect effect of emotion regulation on emotional eating and addictive-like eating. Participation in the MII was associated with improvements in ED symptoms and some mechanisms-of-action, establishing proof-of-concept for the intervention. Future work to establish the MII's efficacy in a randomized controlled trial is warranted.

The Influence of Weight-Related Self-Esteem and Symptoms of Depression on Shape and Weight Concerns and Weight-Loss 12 Months After Bariatric Surgery.

INTRODUCTION: While body image can improve following bariatric surgery, a portion of patients continue to experience concerns about weight and shape regardless of weight lost. Research is needed to identify risk factors for post-surgical weight and shape concerns given that body dissatisfaction may contribute to poor outcomes. AIMS: To evaluate whether (1) change in weight-related self-esteem and symptoms of depression from pre- to 12-month post-surgery were associated with change in weight and shape concerns independent of weight-loss; (2) improvement in weight and shape concerns, symptoms of depression, and/or weight-related self-esteem predict greater weight-loss 12 months after bariatric surgery; and (3) improvements in weight-related self-esteem, symptoms of depression, weight concerns, or shape concerns predict weight loss. METHODS: Fifty adults approved to receive bariatric surgery self-reported body mass index and completed validated measures of weight-related self-esteem, symptoms of depression, and weight and shape concerns pre- and 12-month post-surgery. RESULTS: Improvements were observed for weight-related self-esteem, concerns over shape and weight, symptoms of depression, and body mass index from pre- to 12-month post-surgery. Improvement in weight-related self-esteem was associated with concomitant improvements in concerns over shape and weight, independent of weight loss. Improvement in symptoms of depression was associated with improvement in concerns over weight, but not shape. Finally, exploratory analyses indicated that improvements in weight-related self-esteem, and concerns over shape and weight, but not symptoms of depression were associated with improvement in weight-loss. CONCLUSIONS: Weight-related self-esteem may represent an overlooked and important target throughout the bariatric surgery process that could enhance surgical outcomes.

Emotion Self-Regulation Moderates the Association Between Symptoms of ADHD and Weight Loss After Bariatric Surgery.

BACKGROUND: This study aimed to examine the combined effect of pre-surgical emotion self-regulation (ESR) and symptoms of attention deficit hyperactivity disorder (sADHD, i.e., inattention, impulsivity, and hyperactivity) on weight loss 12 months following bariatric surgery independent of psychological distress and eating pathology. METHODS: Adults with obesity were recruited from a bariatric surgery specialty clinic in Canada. Patients completed measures of psychological distress (i.e., Beck Depression Inventory II and Beck Anxiety Inventory), eating pathology (i.e., Eating Disorder Examination Questionnaire), ESR (i.e., "Managing Own Emotions" subscale of the Schutte Emotional Intelligence Test), and sADHD (i.e., Adult ADHD Self-Report Scale) prior to surgery. Measures of height and weight were obtained and used to calculate percent excess weight loss (%EWL) of body mass index (BMI) pre- and 12 months post-surgery. RESULTS: Thirty-seven patients were recruited. The final sample consisted of 30 patients (80% female; mean age = 48 years; mean BMI = 49.32). Patients experienced significant weight loss and reported significant improvement in anxiety, depressed mood, and eating pathology from pre- to 12 months post-surgery. A significant sADHD by ESR interaction on %EWL (F(1, 21) = 6.43, p = .019) was observed and accounted for 13% of unique variance after adjusting for relevant covariates. Probing the interaction with the Johnson-Neyman technique indicated that there was a significant inverse association between sADHD and %EWL among individuals who scored ≤ 0.15 SD below the mean on ESR. CONCLUSIONS: ESR moderated the association between sADHD and %EWL, suggesting that sADHD may attenuate weight loss following bariatric surgery among individuals deficient in ESR. This finding has implications for bariatric surgery pre-surgical psychological assessment.