Psychopathology, disordered eating, and impulsivity in patients seeking bariatric surgery

Cannabis use before and after metabolic and bariatric surgery: literature review

As accessibility and legalization of cannabis rise throughout the United States (US), programs have sought guidance about whether its use should be considered a contraindication or, if not a contraindication, what recommendations patients should receive regarding appropriate use before and after metabolic and bariatric surgery (MBS). In this review, medical, nutritional, pharmacological, and psychological considerations are presented by a multidisciplinary group of members of the American Society for Metabolic and Bariatric Surgery (ASMBS). Research suggests several risks associated with long-term cannabis use in the general population, but research in the MBS population, specifically, is limited. Cannabis use is not associated with most postoperative complications but is associated with mental health concerns and disordered eating in patients who have undergone MBS. Research regarding weight loss outcomes is mixed, with most studies showing no significant association. Severe cannabis use appears to have more clinical significance than mild to moderate use, as it is associated with longer lengths of stay and medical complications. While an active cannabis use disorder is considered a contraindication, requiring treatment and abstinence before proceeding with surgery, the state of the literature is not strong enough to suggest that occasional or medical cannabis use is an absolute contraindication to MBS. Decisions about cannabis protocols should be made at the MBS program level, and patients should be fully informed about the risks of ongoing use.

Cross-sectional analysis of eating disorder risk and risk correlates in candidates for bariatric surgery from the BariPredict cohort

Bariatric surgery is an effective intervention for managing obesity. Persons with obesity are a high-risk population for eating disorders (ED), and these can negatively impact perioperative and long-term outcomes of surgery. We aim to understand prevalence and correlates of ED in preintervention patients, identifying those needing psychological support. Baseline cross-sectional analysis of 275 patients of the BariPredict cohort (NCT06480058), a study to assess predictors of long-term surgery outcomes. Psychological assessments were conducted using SCOFF, KUAS, and BDI tools. Data were analyzed for prevalence of high ED risk and for associations of clinical, biological and demographic factors. Mean age was 38.5 years, mean BMI was 42.3 kg/m², with 62.5% being female. 65.8% of patients had a SCOFF score ≥ 2 indicating high ED risk. Class II obesity (p < 0.05), younger age (p < 0.01), and higher depression (p < 0.01) were associated with ED risk in a logistic regression adjusted for age, obesity class, diabetes, HbA1c, depression and anxiety scores. We report high preintervention prevalence of ED, with a risk profile corresponding to BMI of 35-39.9 Kg/m2 in younger adults with concurrent depression. This patient profile should be prioritized for psychological assessment and support to potentially improve outcomes of bariatric surgery.

Association of psychiatric history with hypertension among adults who present for metabolic and bariatric surgery

BACKGROUND

Psychiatric diagnoses are common among adults with severe obesity (body mass index [BMI] ≥40 kg/m2) and may be associated with hypertension.

OBJECTIVES

To determine the association between lifetime and current psychiatric diagnoses, separately, with hypertension, uncontrolled blood pressure (BP), and systolic BP (SBP) among adults with severe obesity undergoing metabolic and bariatric surgery (MBS).

SETTING

Academic medical center.

METHODS

Outcomes were identified from electronic medical records. Psychiatric diagnoses were assessed by clinical interview and included any bipolar and related disorder or depressive disorders, anxiety, alcohol use disorder, substance use disorder, post-traumatic stress disorder, and eating disorders. Adjusted odds ratios for the association between psychiatric diagnoses and hypertension and uncontrolled BP, separately, were calculated using logistic regression. Linear regression was used to determine the association of psychiatric diagnoses with SBP. Models were adjusted for age, sex, race, and BMI.

RESULTS

There were 281 participants with mean age of 40.5 years (standard deviation = 10.9) and BMI of 45.9 kg/m2 (standard deviation = 6.2). Participants were predominantly women (86.5%) and Black (57.2%). Overall, 44.8% had hypertension and 32.5% of these individuals had uncontrolled BP. The adjusted odds ratios for hypertension was higher (2.95; 95% confidence interval 1.48-5.87) and SBP was greater (3.50 mm Hg; P = .048) among participants with a lifetime diagnosis of anxiety compared with those without. Participants with any current psychiatric diagnosis had a higher SBP compared to those who did not have a current psychiatric diagnosis (3.62 mm Hg; P = .029).

CONCLUSIONS

A diagnosis of anxiety during the lifetime of patients undergoing MBS was associated with almost three times increased odds of hypertension.

Exploring the prevalence and symptom presentation of food addiction among Norwegian bariatric surgery patients: associations with depression, dysregulated eating, and postoperative weight loss

BACKGROUND

Pathological eating and addictive processes are linked to obesity. Food addiction (FA) involves hedonic eating of highly palatable foods, accompanied by addictive symptoms like craving, loss-of-control (LOC) eating, and withdrawal. The main objectives of this study were to assess FA prevalence and symptoms in bariatric surgery candidates, and its relationship with depression, dysregulated eating, and 1- year postoperative weight loss (WL).

METHODS

Data from 69 bariatric surgery patients (74% female, 26% male, ) were analysed. Self-report measures including Yale Food Addiction Scale (YFAS) 2.0, Eating Disorder Examination-Questionnaire (EDE-Q), Repetitive Eating Questionnaire [Rep(eat)-Q] and Hospital Anxiety and Depression Scale (HADS) were administered pre-surgery and at 1-year follow-up.

RESULTS

The mean preoperative YFAS symptom score was 2.2. (SD = 2.59). 16% of the sample met YFAS diagnostic criteria for FA. Top reported FA criteria were "substance taken in larger amount than intended" (33%), "persisted desire or repeated unsuccessful attempts to quit" (29%), and "use in physically hazardous situations" (23%). The YFAS symptom scores correlated significantly with the frequency of LOC binge eating, depression and repetitive eating scores, but showed no correlation with age or BMI. Preoperative YFAS symptom scores did not significantly predict % WL at 1-year follow-up.

CONCLUSIONS

Our findings align with previous research, indicating that preoperative FA symptoms is unrelated to preoperative BMI and total %WL, but linked to eating pathology, such as LOC binge eating and grazing, as well as depression in bariatric surgery candidates.

Enhancing the outcomes of bariatric surgery with inhibitory control training, electrical brain stimulation and psychosocial aftercare: a pilot study protocol

BACKGROUND

Notwithstanding the documented short- and long-term weight loss and remission of physical and mental diseases following bariatric surgery, a significant proportion of patients fail to respond (fully) to treatment in terms of physical and mental health improvement. Mounting evidence links food-specific impulsivity, prefrontal cortex (PFC) hypoactivity and disrupted hormone secretion in bariatric surgery candidates to poorer post-surgical health outcomes. Neuromodulatory treatments like transcranial direct current stimulation (tDCS) uniquely target these neurobehavioral impairments. We present a pilot study protocol offering tDCS combined with an inhibitory control training and a structured psychosocial intervention to patients after bariatric surgery.

METHODS

A total of N = 20 patients are randomized to 6 sessions of verum or sham tDCS over the PFC, combined with an individualized food-specific inhibitory control training and a structured psychosocial intervention within 18 months after bariatric surgery (t0). Beyond acceptability, feasibility and satisfaction of the intervention, effects of verum versus sham tDCS on food-specific impulsivity and on secondary outcomes quality of life, general impulsivity and psychopathology, food-related cravings, eating disorder psychopathology, weight trajectory and endocrine markers are assessed 4 weeks (t1) and 3 months after the intervention (t2).

DISCUSSION

Results will provide information on the potential of combining tDCS with an inhibitory control training and a structured psychosocial intervention to enhance physical and mental outcomes after bariatric surgery. The present study may guide the development of future research with regard to tDCS as a brain-based intervention and of future post-surgical clinical programs, paving the way for randomized-controlled trials in larger samples.

TRIAL REGISTRATION

The trial was prospectively registered on July 8, 2024, under the registration number DRKS00034620 in the German Clinical Trials Register ( https://drks.de/search/de/trial/DRKS00034620 ).

Prevalence and Correlates of Self-Reported ADHD Symptoms in Bariatric Patients: Focus on Mood and Anxiety Comorbidity, Disordered Eating, and Temperamental Traits

PURPOSE

Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental condition characterized by inattention, hyperactivity, and impulsivity. A positive association between ADHD and obesity has been observed, especially in adult samples. In this study, prevalence and correlates of self-reported symptoms indicative of a positive screening for ADHD were examined in patients seeking bariatric treatment.

MATERIAL AND METHODS

The study sample was composed of 260 adult patients with obesity referred for bariatric surgery to the Obesity Center of the Endocrinology Unit in Pisa University Hospital between January 2006 and November 2016 (BMI ≥ 30 kg/m2; mean ± standard deviation = 46.27 ± 7.45 kg/m2). ADHD symptoms were identified using ADHD Symptom Check-List-90-R Screening Scale. Night-eating, binge-eating/purging behaviors, and temperamental and character traits were assessed in a subsample of 95 patients.

RESULTS

Thirty participants had a positive screening for ADHD (11.5%, 95% CI = 7.9-16.1%). Patients with a positive screening showed significantly higher rates of anxiety disorders (40% vs. 16.5%, χ2 = 7.97, p = 0.005) panic disorder (40% vs. 14.3%, χ2 = 10.48, p = 0.001), and a higher severity of psychopathological symptoms and sleep disturbances than those without. In subsample analyses, ADHD symptoms severity was associated with more bulimic behaviors (r = 0.31-0.46), greater harm avoidance (r = 0.45-0.66), less self-directedness (r =  - 0.44-0.63), and cooperativeness (r =  - 0.26-0.42).

CONCLUSION

ADHD symptoms may be common in patients with obesity seeking bariatric treatment and are positively associated with disordered eating, internalizing features, and maladaptive character traits.

LEVEL OF EVIDENCE

V, cross sectional descriptive study.

Mental health and weight regain after bariatric surgery: associations between weight regain and psychiatric and eating-related comorbidities

Objective

Weight regain is a common outcome of weight loss interventions. Mental health-related comorbidities, among other factors, can mediate weight regain regardless of the implemented treatment modality. This study explores whether postoperative psychopathological comorbidities are associated with weight regain after bariatric surgery.

Subjects and methods

This cross-sectional study recruited 90 outpatients who underwent Roux-en-Y gastric bypass surgery. Anthropometric measurements were collected retrospectively from medical charts. The Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorder-IV (DSM-IV) Axis I Disorders (SCID-I) was applied to evaluate psychiatry diagnoses. Validated self-report instruments were used to assess depression, anxiety, alcohol use, impulsivity, binge eating, and body image dissatisfaction. Weight regain was defined as a ≥20% increase from the maximum weight lost. Level of evidence: Level III, cross-sectional study based on a well-designed study.

Results

Overall, 55.6% of participants experienced weight regain. Notably, mental disorders such as current binge-eating disorder and lifetime diagnoses including bulimia nervosa, alcohol abuse/dependence, and obsessive-compulsive disorder were significantly associated with weight regain. However, controlled analysis found that, for mental disorders, only current binge-eating disorder (odds ratio [OR] 6.3, 95% confidence interval [CI] 1.26-31.06, p = 0.024) remained associated with weight regain. Eating-related psychopathologies also associated with weight regain included binge eating (d = 0.55; p = 0.013), eating disinhibition (d = 0.76; p = 0.001), higher hunger levels (d = 0.39; p = 0.004), and non-planning trait impulsivity (d = 0.69; p = 0.0001).

Conclusion

Postoperative presence of psychopathological comorbidities, such as eating psychopathology and trait impulsivity, were associated with weight regain after bariatric surgery. These findings highlight the importance of addressing mental health in individuals experiencing postsurgical weight regain.

Psychopathology, disordered eating, and impulsivity as predictors of weight loss 24 months after metabolic and bariatric surgery

BACKGROUND

The relationship between theoretically relevant psychosocial and behavioral variables and outcomes of metabolic and bariatric surgery remains unclear. Some studies have found that the presence of psychopathology, disordered eating, and impulsivity, either before surgery or during the early postoperative period, is associated with suboptimal postoperative weight loss. Other studies have not found these relationships.

OBJECTIVE

Examine the relationship between psychopathology, disordered eating, impulsivity, and weight loss 24 months postoperatively.

SETTING

Two large, urban university health systems.

METHODS

Participant characteristics were collected using validated interviews, patient-reported outcome measures, and computerized assessment methods. Linear mixed effect models were used to test the association of the variables of interest on percent weight loss (%WL).

RESULTS

Three hundred participants were enrolled at baseline; weight data at 24 months were available for 227 participants; between 181 and 53 individuals completed other outcome measures. The mean %WL was 23.3 ± 9.9% at 24 months. Patients who underwent Roux-en-Y gastric bypass lost more weight than those who underwent sleeve gastrectomy. The presence of subjective binge episodes at baseline was related to a greater %WL at 24 months; there were no other baseline predictors. The presence of eating disorder diagnoses and disordered eating symptoms after surgery were associated with smaller weight losses over 24 months. Current and lifetime psychopathology and impulsivity were unrelated to %WL at 24 months.

CONCLUSION

Disordered eating after bariatric surgery was associated with a smaller %WL at postoperative year 2. Additional monitoring of these symptoms in the early postoperative period is recommended. Psychotherapeutic and/or dietary interventions may promote more optimal weight loss outcomes.

Post bariatric surgery complications, nutritional and psychological status

BACKGROUND AND OBJECTIVES

Bariatric surgery becomes the final option for managing severe obesity. This study aims to identify the complications, changes in anthropometry, adherence to dietary recommendations, and psychological well-being of post-bariatric surgery patients.

METHODS AND STUDY DESIGN

An observational study was conducted on 63 post-bariatric surgery patients who had undergone bariatric surgery between two weeks and five years after surgery. The participants were assessed for the complications experienced, current comorbidities, anthropometric changes, dietary intake, and psychological well-being. A three-day, 24-hour diet recall was done to assess the dietary intake of the patients. The mean macronutrient and micronutrient intakes were compared to several available recommendations. The DASS-21 questionnaire was administered to determine the psychological well-being of the participants.

RESULTS

The most common complications experienced by patients after bariatric surgery were hair loss (50.8%), gastroesophageal reflux disease (GERD) (49.2%), and vomiting (41.3%). There were significant differences in mean weight before (129.5 (33.0) kg/m2) and after (85.0 (32.0) kg/m2) bariatric surgery (p<0.001). The prevalence of clinically severe obesity declined by 55%. Overall, patients had insufficient intake of some nutrients such as protein, fat, calcium, and iron. Majority of the patients experienced a normal level of stress, anxiety, and depression, but some had mild (3.2%), moderate (4.8%), and severe anxiety (1.6%).

CONCLUSIONS

There were drastic improvements in patients' weight following bariatric surgery. However, there were several complications including nutrient deficiencies. Due to the anatomical changes in the gastrointestinal tract, patients must comply with the dietary and lifestyle changes and follow up with the healthcare professional. A nutrition module will be helpful for patients to prepare for and adapt to the changes after bariatric surgery.

The 'revolving door' of mental illness: A meta-analysis and systematic review of current versus lifetime rates of psychological disorders

OBJECTIVES

Therapists have long observed a phenomenon referred to as the 'revolving door' of mental health services, in which individuals often develop, seek treatment for, and recover from multiple mental illnesses across their life. However, this has not been systematically examined. If this phenomenon is widespread, one would expect that the number of lifetime disorders would exceed that of current disorders. The aim of this meta-analysis was to test this hypothesis.

METHODS

A search was conducted of the following databases: MEDLINE, PsycINFO and Web of Science. In total, 38 studies were included in the current review; 27 of these contained sufficient quantitative data to be included in the meta-analysis, addressing the primary research aim. The remaining 11 studies were included in the systematic review only.

RESULTS

Meta-analyses of the 27 studies indicated that the average number of lifetime disorders was 1.84 times that of current disorders. Previous treatment significantly moderated this relationship, while the clinical nature of the sample did not. Examination of the remaining studies revealed common temporal sequences, indicating disorders which typically develop first or consequently to other disorders.

CONCLUSIONS

These findings provide support for the revolving door of mental illness, suggesting a need for transdiagnostic treatments and broader conceptualisation of relapse prevention.

Emotional Eating and Uncontrolled Eating as Risk Predictors for Disordered Eating Attitudes in Candidates for Bariatric Surgery Treated at a Public Hospital in the Amazon

This study analyzes the eating behavior and factors associated with the presence of disordered eating attitudes in patients undergoing bariatric surgery. It is a cross-sectional, descriptive, and analytical study conducted at a hospital in the Amazon region of Brazil. The Disordered Eating Attitude Scale reduced version (DEAS-s) was used to assess the risk of eating disorders and the Three-Factor Eating Questionnaire (TFEQ-R21) was used to characterize eating behavior. A total of 205 patients participated, with a mean age of 37.5 ± 8.6 years. The majority of participants were female (93.7%; p < 0.001), and the mean BMI was 45.3 ± 6.7 kg/m2. It was found that cognitive restraint had the highest mean (52.6 ± 19.9; p < 0.001). As for the DEAS-s, the question with the highest mean response was "spending one or more days without eating or consuming only liquids to lose weight" (2.80 ± 1.99). Female participants had a higher score for emotional eating (p = 0.016). Disordered eating attitudes showed a correlation with emotional eating and uncontrolled eating. These results suggest that candidates for bariatric surgery may have susceptibility to eating disorders. The importance of a multidisciplinary team conducting monitoring during the preoperative period is highlighted.

Pre-operative body shape concerns moderate excess weight loss trajectory in bariatric surgery patients: a 2-year longitudinal study

PURPOSE

The main research aim was to inspect whether pre-operative body shape concerns and discomfort as Body Shape Questionnaire (BSQ) scores moderate post-operative weight loss trajectory in bariatric patients.

METHODS

Two studies were conducted. Study 1 analyzed cross-sectional data and verified the structural validity of the 34-item BSQ questionnaire on a sample of 327 candidates for bariatric surgery. Study 2 examined longitudinal data, with objective Body Mass Index (BMI) recorded every 6 months, from surgery intervention on, with 5 measurement occasions, from 111 patients who initially completed BSQ as bariatric surgery candidates and then underwent periodic medical post-operative follow-ups, over 2 years.

RESULTS

In Study 1, confirmatory factor analysis of a single-dimension model yielded acceptable fit indices and high internal consistency levels. Study 2 showed that post-operative excess BMI reduction trend was not linear and pre-operative BSQ scores moderated it, with a higher risk of weight regain in patients who initially were less concerned with their body shape.

CONCLUSIONS

The present findings support the structural validity of the BSQ questionnaire in bariatric candidates and call attention on the role of pre-operative body shape concerns on post-operative weight loss trajectories over 2 years, in accordance with a pathoplasty model. They suggest the need for systematic attention on perceived body image and psychological paths aimed to help bariatric patients regain positive attitudes towards their own body. Level of evidence III, well-designed cohort.

The forgotten patient: A psychological perspective on the implementation of bariatric surgery guidelines

There is strong evidence demonstrating the impact of bariatric surgery on weight-loss and comorbidity improvement. In the UK, there is specific guidance to facilitate the assessment of a person's suitability for bariatric surgery. This paper highlights the clinical reality of routinely implementing this guidance, supported by literature and the perspectives of practicing psychologists. The consequences of the implementation of clinical guidelines within the context of the typical biopsychosocial profile of those referred for bariatric surgery are discussed. The ramifications of a screening approach rather than a clinical formulation-based approach to assessment, impact of a possible unconscious bias in commissioning and an overemphasis on a biomedical model approach to treatment are also presented. These contextual factors are argued to contribute to a population of "forgotten patients" that is, patients who have been assessed as not suitable for bariatric surgery, and thus "stuck" in their journey toward better health. For these individuals the only option left are energy balance only approaches, which are the very same approaches to weight-loss and comorbidity improvement that have been attempted, often for many years. Not only have these approaches not resulted in weight-loss and health improvement, they also fail to address the underlying psychological causes of obesity. Consequently, this lack of support means that patients continue to suffer from poor quality of life, with no clear pathway to improved health and wellbeing. This paper illuminates the clear gaps in weight management service provision, the implementation of guidelines in practice, and offers practical suggestions to reduce the unintended consequences of clinical guidelines for bariatric surgery.

Psychiatric comorbidity as a prospective predictor of long-term weight and psychosocial outcomes after bariatric surgery

OBJECTIVES

Psychiatric comorbidity is common among the bariatric population although the prognostic significance of psychiatric comorbidity on outcomes is uncertain. This prospective study examined differences in weight and psychosocial functioning outcomes based on lifetime and current (post-surgical) psychiatric comorbidity.

METHODS

Participants were 140 adults in a RCT for loss-of-control (LOC)-eating approximately six months post-bariatric surgery. Two structured interviews were administered: the Eating Disorder Examination-Bariatric Surgery Version (EDE-BSV) to assess LOC-eating and eating-disorder psychopathology, and the Mini International Neuropsychiatric Interview (MINI) to assess lifetime and current (post-surgical) psychiatric disorders. The EDE-BSV and Beck Depression Inventory (BDI-II) were repeated at post-treatment and 24-month follow-ups.

RESULTS

Lifetime (75.7%) and current/post-surgical (25%) psychiatric diagnoses were common. Groups with and without psychiatric comorbidity did not differ significantly in weight loss outcomes at any timepoint but psychiatric comorbidity was associated significantly with greater LOC-eating, eating-disorder psychopathology, and depression.

CONCLUSIONS

Among participants with LOC-eating post-bariatric surgery, lifetime and post-surgical psychiatric comorbidity was not associated with acute or longer-term weight outcomes but predicted poorer psychosocial functioning. Findings challenge prevailing views that psychiatric comorbidity is related to poorer longer-term weight outcomes following bariatric surgery but highlight its clinical significance as it is associated with broad psychosocial difficulties.

Changes in Eating Behaviors and Their Relation to Weight Change 6 and 12 Months After Bariatric Surgery

INTRODUCTION

Identifying eating behaviors associated with suboptimal weight loss following bariatric surgery remains important. This study assessed the relationship between eating behaviors and weight loss following bariatric surgery in a racially diverse sample.

METHODS

Participants were assessed before surgery and 6 and 12 months postoperatively, with the Structured Clinical Interview for DSM-5, the Eating Disorder Examination-Bariatric Surgery Version, and validated measures assessing a range of eating behaviors. Linear mixed effect models were used to test the impact of eating behaviors on percent weight loss (%WL) at 6 and 12 months.

RESULTS

We enrolled 300 participants (mean age 40.1 years; BMI 45.9 kg/m2; 87% women; 62% Black and 30% White). The majority (82%) underwent sleeve gastrectomy (SG). Mean %WL was 23.0 ± 5.1% at 6 months and 26.2 ± 7.6% at 12 months. Subjective binge episodes prior to surgery predicted greater %WL over the first 12 postoperative months (p = 0.028). Postoperative disinhibition, hunger, night eating symptoms, objective binge episodes, global disordered eating attitudes and behaviors, and snacks per day were associated with smaller %WL over 12 months (all p's < 0.01). The presence of picking/nibbling and addictive-like eating behaviors was not associated with %WL at the end of the first postoperative year.

CONCLUSION

Among a diverse participant sample, problematic eating behaviors following surgery were associated with smaller %WL over 12 months. Postoperative assessment and treatment of eating behaviors are needed to address these issues as they arise and to prevent attenuation of early weight loss in some patients.

Patients' perceptions of the mechanisms underlying alcohol use problems after bariatric surgery: A qualitative systematic review

Alcohol-related problems increase after bariatric surgery. The objective of this review was to synthesize findings of qualitative studies on patients' perceptions of the mechanisms leading to problematic alcohol consumption after bariatric surgery. This review followed the Joanna Briggs Institute methodology for systematic review of qualitative evidence. A comprehensive search strategy was performed in MEDLINE, PsycInfo, Scopus and Google Scholar. Study selection, data extraction and critical appraisal of included studies were undertaken by two independent reviewers. Confidence in review findings was assessed using the ConQual approach. Four studies were included in this review and led to the development of four synthesized results: (1) persistence or reappearance of psychological problems after bariatric surgery; (2) using alcohol as a coping strategy, sometimes as a replacement for food; (3) changes in the physiological response to alcohol; and (4) importance of increased information about alcohol-related risks and long-term counselling. Confidence in the synthesized results ranged from moderate to low. The results indicated postoperative problematic alcohol consumption is a complex issue, involving psychological and physiological mechanisms. Several recommendations are formulated based on the results obtained. More qualitative and quantitative studies are needed to better understand this phenomenon given the few existing qualitative studies on this topic and some divergent results found between qualitative and previous quantitative research.

Obesity and renal disease: Benefits of bariatric surgery

The prevalence of obesity, a preventable and reversible condition with a high impact on health, continues to rise, especially after the COVID-19 pandemic. Severe overweight is well recognized as a risk factor for diabetes and hypertension, among other conditions, that may increase cardiovascular risk. Obesity has grown simultaneously with a rise in the prevalence of chronic kidney disease, and a pathophysiological link has been established, which explains its role in generating the conditions to facilitate the emergence and maximize the impact of the risk factors of chronic kidney disease and its progression to more advanced stages. Knowing the mechanisms involved and having different tools to reverse the overweight and its consequences, bariatric surgery has arisen as a useful and efficient method, complementary or alternative to others, such as lifestyle changes and/or pharmacotherapy. In a detailed review, the mechanisms involved in the renal consequences of obesity, the impact on risk factors, and the potential benefit of bariatric surgery at different stages of the disease and its progression are exposed and analyzed. Although the observational evidence supports the value of bariatric surgery as a renoprotective measure in individuals with obesity, diabetic or not, randomized studies are expected to establish evidence-based recommendations that demonstrate its positive risk-benefit balance as a complementary or alternative therapeutic tool.

Preoperative Psychological Evaluation Outcomes, Reasoning, and Demographic and Diagnostic Correlates

PURPOSE

Little is known about associations between preoperative psychiatric, disordered eating, and substance use diagnoses with the clinical decision to require follow-up after the preoperative psychological evaluation. To determine the proportion of patients who require follow-up (no required follow-up (NFU), required follow-up (RFU), placed on hold (POH)) from the preoperative psychological evaluation, associations with diagnoses, and noted reasons for follow-up.

MATERIALS AND METHODS

The sample included 508 patients (77.6% female; 64.4% White) pursuing bariatric metabolic surgery with completed psychological evaluations between August 2019 and December 2020 at a Midwest medical center. Patient demographics, psychological evaluation outcome and corresponding reasoning, and psychiatric, disordered eating, and substance use diagnoses were extracted from the health record. Descriptive and bivariate analyses determined associations between demographics and diagnoses with psychological evaluation outcomes and corresponding reasoning.

RESULTS

The breakdown of psychological evaluation outcomes was 60.6% (n = 308) NFU, 38.4% (n = 195) RFU, and 1.0% (n = 5) POH. Demographic correlates of RFU included higher BMI, being single, lower educational attainment, unemployment, public/no insurance, and receiving multiple or any psychiatric diagnosis (all p-values < 0.05). Diagnostic correlates of RFU included anxiety, depression, not having a current trauma or stressor-related disorder, disordered eating, and substance use diagnoses (all p-values < 0.001). RFU/POH was primarily due to psychiatric (61%) reasons.

CONCLUSION

Higher rates of RFU were observed for patients with higher economic need and with psychiatric, disordered eating, or substance use diagnoses. Future work should establish preoperative programming to assist patients with addressing ongoing psychiatric concerns prior to bariatric metabolic surgery.

Psychosocial Aspects of Metabolic and Bariatric Surgeries and Endoscopic Therapies

Obesity is a prevalent progressive and relapsing disease for which there are several levels of intervention, including metabolic and bariatric surgery (MBS) and now endoscopic bariatric and metabolic therapies (EBMTs). Preoperative psychological assessment focused on cognitive status, psychiatric symptoms, eating disorders, social support, and substance use is useful in optimizing patient outcomes and minimizing risks in MBS. Very little is known about the psychosocial needs of patients seeking EBMTs, though these investigations will be forthcoming if these therapies become more widespread. As MBS and EBMT inherently alter the gastrointestinal (GI) tract, considerations for the longer-term GI functioning of the patient are relevant and should be considered and monitored.

Relationship of depression, impulsivity, distress intolerance and coping styles with maladaptive eating patterns in bariatric candidates

PURPOSE

The study aimed to investigate the problematic eating patterns and understand their relationship to psychological constructs, including stress intolerance, coping mechanisms and impulsivity, and psychiatric symptoms among bariatric surgery candidates.

METHODS

The bariatric candidates were evaluated by psychiatric interview and standard scales assessing maladaptive eating behaviors (Eating Attitudes Test (EAT), Bulimia Investigatory Test-Edinburgh (BITE), Dutch Eating Behavior Questionnaire (DEBQ)), depression (Beck Depression Inventory (BDI)), psychiatric symptoms (Brief Symptom Inventory (BSI)), and psychological constructs (Distress Intolerance Index (DSI), Coping Styles Scale (CSS), UPPS Impulsive Behavior Scale(UPPS)).

RESULTS

More than half (57.8%) had maladaptive eating behaviors, and 23.6% had binge-eating behavior. Depression and anxiety predicted EAT, BITE, and DEBQ emotional and external eating sub-scale scores; distress intolerance, helpless coping style, and impulsivity predicted maladaptive eating behaviors in bariatric candidates.

CONCLUSION

Maladaptive eating patterns play an essential role in the failure to lose weight and regain weight and are predicted by depression, anxiety, and psychological constructs in this study. Evaluation of pathological trait characteristics besides discrete psychiatric syndromes should be recommended in the pre-operation process to plan relevant interventions in the long-term management of weight.

LEVEL OF EVIDENCE

Level III, evidence obtained from well-designed cohort analytic studies.

Weight stigma and posttraumatic stress disorder symptoms in individuals seeking bariatric surgery

BACKGROUND

After bariatric surgery, some patients experience adverse psychiatric outcomes, including substance use, suicidality, and self-harm. These factors are commonly associated with posttraumatic stress disorder (PTSD) and related symptoms (PTSD-S) that develop following adverse childhood experiences (ACEs) and traumatic events. However, emerging evidence suggests that chronic discrimination also may contribute to PTSD-S. Weight-based discrimination is salient for people with obesity but has received little attention in relation to PTSD-S.

OBJECTIVE

Our study examined factors that may contribute to the link between experienced weight stigma (WS), which is common in individuals seeking bariatric surgery, and PTSD-S.

SETTING

Teaching hospital and surgical weight loss center in the United States.

METHODS

A total of 217 participants completed self-report surveys of experienced and internalized WS, ACEs, and PTSD-S. Demographics and trauma history were obtained from patient medical records. A stepwise multiple regression examined associations between experienced WS and internalized WS with PTSD-S, co-varying demographics, ACEs, and trauma, followed by examination of whether findings held co-varying anxiety/depressive symptoms in a participant subset (n = 189).

RESULTS

After accounting for covariates in step 1 and ACEs and trauma in step 2 (ΔR² = .14), experienced WS and internalized WS accounted for substantial PTSD-S variance in steps 2 and 3 (ΔR² = .12 and .13, respectively; overall model R² =.44; P < .001). Findings held after co-varying anxiety/depressive symptoms.

CONCLUSIONS

Over and above ACEs and trauma, experienced WS and internalized WS may contribute to PTSD-S. Longitudinal research is needed to better elucidate the pathways underlying these associations.

Prevalence and psychiatric comorbidities of night-eating behavior in obese bariatric patients: preliminary evidence for a connection between night-eating and bipolar spectrum disorders

PURPOSE

The co-occurrence of obesity, eating and mood disorders has been frequently reported in clinical and epidemiological settings. This study aimed to explore the prevalence of night-eating obese patients referred for bariatric surgery and to identify associated psychopathology and psychiatric comorbidity.

METHODS

The sample was composed of 121 obese patients consecutively enrolled between November 2010 and May 2012 during psychiatric evaluations for bariatric intervention. Clinical features and psychiatric diagnoses were collected. Night-eating was investigated through the administration of the Night-eating Questionnaires (NEQ) and was defined as the presence of self-reported evening hyperphagia and/or nocturnal ingestions. Binge-eating and purging behaviors and general psychopathology were respectively assessed using the Bulimic Investigatory Test, Edinburgh and the Symptom Checklist-90-Revised.

RESULTS

Night-eating was reported by twenty subjects (16.5%). Patients with night-eating behavior were significantly more frequently diagnosed with bipolar spectrum disorders and with comorbid eating and mood disorders in comparison with other patients. Night-eating patients showed significantly more binging/purging behaviors and greater severity of somatization, obsessive-compulsive symptoms, phobic anxiety, psychoticism and sleep disorders. Patients with bipolar disorder type 1 or 2 scored significantly higher than those without mood disorders at NEQ total score, mood/sleep and nocturnal ingestions subscales, but also scored significantly higher than other patients with mood disorders at the latter subscale.

CONCLUSION

Patients with evening hyperphagia and/or nocturnal ingestions should be carefully evaluated to detect possible bipolar spectrum disorders and other eating disorders. Prompt management of these conditions should be provided before bariatric interventions.

LEVEL OF EVIDENCE

V, cross-sectional descriptive study.

Changes in Antihypertensive Medication Following Bariatric Surgery

Obesity is a leading cause of hypertension (i.e., high blood pressure [BP]). While hypertension can be managed with antihypertensive medication, substantial weight loss can also lower BP, reducing the need for antihypertensive medication. Articles in this review (n = 60) presented data on antihypertensive medication use among adults pre- and postoperatively. Roux-en-Y gastric bypass was the most studied surgical approach followed by Laparoscopic Sleeve Gastrectomy. Antihypertensive medication was discontinued in a large proportion of patients after surgery, and the mean number of antihypertensive medications decreased by approximately one. In almost a third of the studies, over 75% of participants experienced hypertension remission. All articles aside from two reported a decrease in systolic BP, with about 40% reporting a decrease of ≥ 10 mm Hg.

Contributing roles of depression, anxiety, and impulsivity dimensions in eating behaviors styles in surgery candidates

BACKGROUND

Even if bariatric surgery is considered the most effective therapeutic approach, it is not equally successful among individuals suffering from severe obesity and candidates for this weight loss surgery. Among the factors that influence postsurgical outcomes, eating behaviors styles are known to play a key role in relapses. The aim of our study was to assess eating behaviors styles and several modulating psychopathological factors in patients suffering from severe obesity.

METHODS

Patients seeking bariatric surgery (N = 127) completed a set of standardized tools assessing eating behaviors (Dutch Eating Behavior Questionnaire), comorbid psychiatric conditions (Mini International Neuropsychiatric Interview), depression, and anxiety scores (Beck Depression Inventory, State-Trait Anxiety Inventory), and impulsivity scores (UPPS-P Impulsive Behavior Scale).

RESULTS

We detected significant correlations between DEBQ Emotional Eating (EmoE) and depression, state and trait anxiety, and all dimensions of impulsivity. Significant correlations were also present between DEBQ External Eating (ExtE) and depression, state and trait anxiety and UPPS-P positive urgency, lack of perseverance and sensation seeking. Regression analyses identified sex (female), trait anxiety, and lack of perseverance as explanatory factors for EmoE, and depression severity score and positive urgency for ExtE.

CONCLUSIONS

EmoE might be a means of dealing with negative emotions and/or intrusive thoughts, while ExtE might result from a mechanism associated with depression. These results should help to improve patients' outcomes by defining specific therapeutic targets in psychological interventions. After bariatric surgery, some patients regain weight. This is likely due to various factors, including a return of maladaptive eating styles, such as emotional eating (which occurs as a response to negative emotions, like depression, anxiety, anger, sadness, and discouragement), external eating (which refers to the tendency to eat in response to positive external cues, regardless of internal signals of hunger and satiety), and restraint eating (implying to make efforts to develop and maintain strategies to control calories intake, associated with weight loss after lifestyle intervention). Our goal in this research project was to explore associated factors (particularly depression, anxiety, and impulsivity) to these eating styles in patients suffering from obesity prior to bariatric surgery. Individuals seeking bariatric surgery were asked questions about their eating styles and their levels of depression, anxiety, and impulsivity using standardized questionnaires. We found that emotional eating might be a means of dealing with negative emotions and/or intrusive thoughts (e.g. about food or body dissatisfaction), while external eating might result from a mechanism associated with depression. We detected no association between restraint eating and any of the dimensions of impulsivity, nor depression and anxiety. Therapies aimed at improving patients' abilities to regulate negative affects seem promising among subjects suffering from obesity and those seeking bariatric surgery. If well learned, these therapies might also help them to maintain weight loss after surgery by limiting maladaptive eating styles.

Understanding bariatric patients' experiences of self-management post-surgery: A qualitative study

Although most bariatric patients achieve significant weight loss and improvements in both physical and mental health-related quality of life (HRQoL) in the short-term, there is wide variability in weight and long-term HRQoL outcomes. The role of bariatric patients' self-management style in explaining variability in long-term outcomes is unclear. This qualitative study examined bariatric patients' self-management experiences after bariatric surgery in relation to long-term outcomes. A qualitative study was conducted using semi-structured individual interviews with post-surgery patients (n = 23) at a Canadian bariatric surgery program. A constant comparative approach was used to systematically analyse the data and identify overarching themes. Variation in patients' experiences and follow-up time were the two primary units of analysis. Patients were predominantly female (n = 19; 82.6%) and had a mean age of 50 ± 8.49 years. The median time post-surgery was 2 years (range: 6 months-7 years). Three distinct phases described the process of self-management post-bariatric surgery: (1) rediscovering self-esteem and confidence in one's ability to self-manage (1-month to 1.5-years post-surgery), (2) achieving weight maintenance and addressing emotion dysregulation (1.5-3-years post-surgery) and (3) embracing a flexible balanced lifestyle (beyond 3-years). Bariatric surgery patients experience distinct challenges relative to their post-surgery time course. Facilitating access to interprofessional bariatric care after surgery allowed patients to acquire the self-management knowledge and skills necessary to address challenges to following the bariatric guidelines in the long-term.

No addiction transfer from preoperative food addiction to other addictive behaviors during the first year after bariatric surgery

OBJECTIVE

The aim of the present study was to investigate whether the remission of preoperative food addiction is associated with increases or new onset of other addictions within the first year following bariatric surgery.

METHODS

One hundred and twenty-five bariatric surgery patients were assessed before surgery (t1) and at 6 months (t2) and 1 year (t3) follow-ups. The assessments included the Yale Food Addiction Scale 2.0 (YFAS 2.0) and standardized questionnaires to measure symptoms of problematic alcohol use, gambling disorder, internet-use disorder, buying-shopping disorder, hypersexual disorder and exercise dependence.

RESULTS

Forty-nine (39.2%) patients were assigned to the food addiction (FA⁺ ) and 76 patients (60.8%) to the non-food addiction group (FA^- ) based on their preoperative YFAS scores. Overall, BMI and symptoms of food addiction decreased significantly from baseline to follow-ups. Preoperative food addiction status was not associated with postoperative increases or new onset of other addictions. Elevated symptoms of buying-shopping disorder, internet-use and hypersexual behaviour at baseline in the FA⁺ -group decreased over time and were comparable to the FA^- -group at follow-ups.

CONCLUSION

The 'addiction transfer' or 'cross addiction' hypothesis was not supportive for alcohol addiction, gambling addiction or other behaviours that may be addictive. Further studies are needed that investigate larger samples and longer observation periods, as well as other substance-use disorders.