Key result
Social support, current or lifetime Axis I disorder, and post-operative loss of control over eating were identified as important predictors of weight loss following Roux-en-Y gastric bypass surgery.
Why the study?
Do psychosocial factors predict weight loss outcomes in patients undergoing Roux-en-Y gastric bypass surgery?
Systematic Review
Do psychosocial factors predict weight loss outcomes in patients undergoing Roux-en-Y gastric bypass surgery?
Psychosocial support and specific psychiatric factors like Axis I disorders and loss of control over eating are important predictors of weight loss following Roux-en-Y gastric bypass surgery.
Psychosocial screening may refine RYGB patient selection; extends evidence on psychiatric and behavioral predictors of weight loss.
Objective: Weight loss surgery has been heralded as a treatment alternative for patients with morbid obesity. Psychiatric disorders are highly prevalent in bariatric surgery candidates and a myriad of psychosocial variables has been explored to identify mediators of post-surgery weight loss. The following review aims to elucidate psychosocial predictors of weight loss outcomes specific to Roux-en-Y gastric bypass surgery (RYGBS). Methods: We searched PubMed for prospective trials evaluating psychosocial predictors for weight loss with RYGBS published between 2000 and 2010. Manual searches of references listed in review articles, case series and anecdotal reports supplemented our literature search. Additional literature on post-bariatric surgery psychosocial outcomes and management of psychiatric sequelae in bariatric surgery patients are discussed in this review. Results: A total of 20 prospective studies were identified. Our review found that few psychosocial factors have been studied and results were predominantly inconclusive. We observed heterogeneity amongst studies with respect to study duration and assessment methods. Binge eating disorder, mood disorders, and anxiety disorders have not reliably predicted weight loss in identified studies. Preliminary results suggest that psychosocial support is an important predictor of postoperative weight loss and highlight a likely role for pre- and post-surgery support groups. Conclusion: Social support, current or lifetime Axis I disorder, and post-operative loss of control over eating have been identified as important predictors of weight loss post-RYGBS. Larger, long-term studies are needed to further elucidate psychosocial risk factors for weight loss post-RYGBS Keywords: Bariatric surger, depression, mental illness, psychiatry, psychosocial factors, weight loss, dyslipidemia, hypertension, obstructive sleep apnea, osteoarthritis, sthma and premature mortality, laparoscopic gastric banding, psychiatric co-morbidity, psychosocial predictors, binge eating disorder, psychosocial
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Sockalingam et al. (2011) conducted a systematic review in Morbid obesity. Psychosocial predictors was evaluated on Weight loss. Social support, current or lifetime Axis I disorder, and post-operative loss of control over eating were identified as important predictors of weight loss following Roux-en-Y gastric bypass surgery.
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