Research implicates inflammation in the vicious cycle between depression and obesity, yet few longitudinal studies exist. The rapid weight loss induced by bariatric surgery is known to improve depressive symptoms dramatically, but preoperative depression diagnosis may also increase the risk for poor weight loss. Therefore, we investigated longitudinal associations between depression and inflammatory markers and their effect on weight loss and clinical outcomes in bariatric patients.

This longitudinal observational study of 85 patients with obesity undergoing bariatric surgery included 41 cases with depression and 44 controls. Before and 6 months after surgery, we assessed depression by clinical interview and measured serum high-sensitivity C-reactive protein (hsCRP) and inflammatory cytokines, including interleukin (IL)-6 and IL-10.

Before surgery, depression diagnosis was associated with significantly higher serum hsCRP, IL-6, and IL-6/10 ratio levels after controlling for confounders. Six months after surgery, patients with pre-existing depression still had significantly higher inflammation despite demonstrating similar weight loss to controls. Hierarchical regression showed higher baseline hsCRP levels predicted poorer weight loss (β = −0.28, p = 0.01) but had no effect on depression severity at follow-up (β = −0.02, p = 0.9). Instead, more severe baseline depressive symptoms and childhood emotional abuse predicted greater depression severity after surgery (β = 0.81, p < 0.001; and β = 0.31, p = 0.001, respectively).

Depression was significantly associated with higher inflammation beyond the effect of obesity and other confounders. Higher inflammation at baseline predicted poorer weight loss 6 months after surgery, regardless of depression diagnosis. Increased inflammation, rather than depression, may drive poor weight loss outcomes among bariatric patients.

Obesity has increased worldwide and concerns comorbidity in patients with schizophrenia, and is linked to a high mortality rate in this group. Although bariatric surgery is the gold standard treatment for refractory obesity, it rarely is indicated for subjects with schizophrenia due to psychotic symptoms recurrence.

Report weight-loss outcome and psychopathology changes over 36 months follow-up of 5 patients with schizophrenia submitted to bariatric surgery.

Patients have been followed for 36 months. Clinical and anthropometric assessments such as percentage of excess weight loss (EWL) and body mass index (BMI) have been performed at 6, 12, 24, and 36 months follow-up. The Positive and Negative Syndrome Scale (PANSS) was used to assess psychopathology status. Wilcoxon test was used to assess statistical differences.

The sample included four female and one male subject, with BMI at baseline 42,81± 5,66. The results of BMI and EWL over time are described in Table 1. A significant statistical difference was found between BMI at baseline and at T6, T12, T24, and T36 (p<0,05). EWL was higher at T12 ( compared with T6), but not different from other measurements. PANSS scores at the baseline were 7,7 ± 1,6 for a positive domain, 8,7 ± 2,3 for a negative domain, and 19,2 ± 6 for general psychopathology, with no statistically significant differences during the follow-up.

Despite the small sample, bariatric surgery has been shown a safe and efficient refractory obesity treatment in patients with schizophrenia.

No significant relationships.

Bariatric surgery is considered an effective treatment against obesity. Psychiatric illness is relatively common in patients who have undergone bariatric surgery. Over one-third of these patients are prescribed psychotropic drugs, particularly antidepressants. Unlike medications for diabetes, hypertension or hyperlipidemia, which are generally reduced and at times discontinued, postsurgery psychotropic use is only slightly reduced. The surgical intervention and the subsequent weight loss can affect several pharmacokinetic parameters, leading to a possible need of dosing adjustment.

To review the influence of bariatric surgery on the use and pharmacokinetics of psychotropic drugs.

Non-systematic review of literature through search on PubMed/MEDLINE for publications from 2011 to 2021, following the terms psychotropic and bariatric surgery. Textbooks were consulted.

It is difficult to predict how psychotropics will be affected by bariatric surgery because of interindividual differences and limited data. Malabsorptive surgical procedures have a relatively greater potential to alter drug exposure. Medication disintegration, dissolution, absorption, metabolism and excretion have been found to be altered in postbariatric patients. Antidepressants are the best studied psychotropics in the bariatric population and their absorption is reduced. The risk of gastric bleeds with bariatric surgery will probably be increased by serotoninergic antidepressants. Antipsychotics and mood stabilisers are not well studied in these patients. Depot antipsychotics avoid the risk of reduced absorption after surgery. Lithium use requires particular close monitoring.

Close treatment monitoring and the ongoing monitoring of symptoms are needed after bariatric surgery. Many patients may not require significant changes to drug treatment after surgery.

No significant relationships.

Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental condition characterized by symptoms of inattention, hyperactivity, and impulsivity, which only rarely remits in adulthood[1]. A positive association between ADHD and obesity has been repeatedly observed, especially in adult samples[2]. However, only a few studies investigated the prevalence and correlates of ADHD in obese patients seeking bariatric treatment[3,4].

Our study was aimed to examine the prevalence of probable ADHD comorbidity in a sample of obese patients referred for bariatric surgery. Secondly, we sought to characterize differences in eating behaviour between obese subjects with and without probable ADHD.

The study sample was composed of 110 adult obese patients (BMI ≥ 30 kg/m2) consecutively referred for bariatric surgery to the Obesity Center of the Endocrinology Unit in Pisa University Hospital between November 2010 and May 2012. Probable ADHD was identified using a recently developed screening scale based on items selected from Symptom Check‐List‐90‐R (SCL-90-R)[5]. The extent of binge-eating/purging and night-eating behaviours were respectively estimated using the Bulimic Investigatory Test, Edinburgh (BITE)[6] and the Night-eating Questionnaire (NEQ)[7]. Wilcoxon test was used for statistical comparisons, with a significance level of p<0.05 set for all tests.

Probable ADHD was found in 14 subjects (12.7%, 95%CI=7.1-20.4%). Patients with probable ADHD showed significantly higher BITE symptom score (20.4±9.3 vs. 12.1±7.5, r=0.31, p=0.001) and NEQ total score (16.1±9.2 vs. 9.5±3.9, r=0.27, p=0.005).

ADHD is a relatively common comorbidity in obese patients seeking bariatric treatment, which is positively associated with disordered eating habits, such as binge-eating/purging and night-eating behaviours.

No significant relationships.

To determine the relative validity and reproducibility of the Eetscore FFQ, a short screener for assessing diet quality, in patients with (severe) obesity before and after bariatric surgery (BS).

The Eetscore FFQ was evaluated against 3-d food records (3d-FR) before (T0) and 6 months after BS (T6) by comparing index scores of the Dutch Healthy Diet index 2015 (DHD2015-index). Relative validity was assessed using paired t tests, Kendall’s tau-b correlation coefficients (τb), cross-classification by tertiles, weighted kappa values (kw) and Bland–Altman plots. Reproducibility of the Eetscore FFQ was assessed using intraclass correlation coefficients (ICC).

Regional hospital, the Netherlands.

Hundred and forty participants with obesity who were scheduled for BS.

At T0, mean total DHD2015-index score derived from the Eetscore FFQ was 10·2 points higher than the food record-derived score (P < 0·001) and showed an acceptable correlation (τb = 0·42, 95 % CI: 0·27, 0·55). There was a fair agreement with a correct classification of 50 % (kw = 0·37, 95 % CI: 0·25, 0·49). Correlation coefficients of the individual DHD components varied from 0·01–0·54. Similar results were observed at T6 (τb = 0·31, 95 % CI: 0·12, 0·48, correct classification of 43·7 %; kw = 0·25, 95 % CI: 0·11, 0·40). Reproducibility of the Eetscore FFQ was good (ICC = 0·78, 95 % CI: 0·69, 0·84).

The Eetscore FFQ showed to be acceptably correlated with the DHD2015-index derived from 3d-FR, but absolute agreement was poor. Considering the need for dietary assessment methods that reduce the burden for patients, practitioners and researchers, the Eetscore FFQ can be used for ranking according to diet quality and for monitoring changes over time.

There is a need to investigate how adopting different strategies for treating obesity in different countries in the European Union affects the psychological well-being of patients.

The aim of this study was to perform a comparative evaluation of psychiatric symptoms (depression, anxiety and stress) in patients undergoing bariatric surgery versus patients receiving conservative treatment for morbid obesity in Poland and Germany.

A multicentre international prospective cohort study with 155 patients who underwent bariatric surgery and 409 patients who received conservative weight reduction treatment. Evaluation of the psychiatric symptoms was carried out for each patient at baseline and after 12 months of active treatment using a standardised Depression Anxiety Stress Scale questionnaire (DASS-21) questionnaire.

After 12 months of active treatment, the level of psychiatric symptoms (depression, anxiety and stress) significantly decreased in both groups of patients: surgically treated versus conservatively treated patients from Poland and also from Germany. The median change in level of psychiatric symptoms among patients from both countries was significantly higher among surgically treated patients compared with conservatively treated patients (Poland P < 0.0001; Germany P < 0.0001). Improvements in the patient's mental health as a consequence of treatment were dependent on the specific strategy for treating obesity adopted in the analysed countries, the percentage of total weight loss and on gender.

The use of bariatric surgery in both Poland and Germany compared with non-surgical treatment for obesity resulted in more measurable benefits in the form of a decrease in psychiatric symptoms (depression, anxiety and stress) and reduction in body weight.

Previous research has found that candidates for bariatric surgery usually present anxiety, depression, personality disorders and/or a tendency to binge eating. The situation related with the pandemic and the lockdowns during the 2020 are possible aggravating factors for these characteristics.

To study the more important psychological characteristics presented by candidates for bariatric surgery.

40 people between 29 and 65 years old (M=46.4, SD=9.1; 37.5% male, 62.5% female) were evaluated between July and December of 2020. The assessment consisted in an interview carried out by a clinical psychologist, and a pool of questionnaires to evaluate depression and anxiety symptoms (Beck Depression Inventory, BDI; and the Goldberg Anxiety and Depression Scale, GADS) the existence of a binge eating pattern (the Binge Eating Scale; BES) and personality traits (the Salamanca Screening Test).

The 25% of the sample had previous mental health antecedents. Eight people disclosed to feel stress in relation with the COVID-19, and 18 presented an emotional regulation strategy using food during the lockdown. 62.5% scored above the cut-off point on the BDI (mild=27.5%, moderate=20%, severe=15%) and a 40% and a 47.5% did it for the anxiety and the depression (respectively) GADS subscales. 20% presented a binge eating pattern according with the BES. Most common personality traits were histrionic (50%), emotionally unstable impulsive type (45%), and anxious (42.5%).

These findings support the previous scientific literature. Psychological intervention programs may be considered to guarantee the surgery’s success, especially when adverse contextual circumstances are presented.

No significant relationships.

The psychopathological causes that advise against a bariatric surgical procedure include any state that puts at risk the modification of habits and beliefs regarding eating behavior, wich condition weight loss and health improvement.

To Study the psychiatric profile of patients rejected for bariatric surgery at the Complejo Hospitalario Asistencial de León (León, Spain).

Retrospective observational study. All patients for whom bariatric surgery procedure has been contraindicated for psychopathological reasons are included. 145 patients were evaluated in the context of the protocol for bariatric surgery. The following diagnostic scales were used as support: Salamanca Questionnaire, Plutchik Impulsivity Scale, Attitudes towards change in patients with eating disorders (ACTA), Bulimia Investigatory Test Edinburgh e, and European Quality of Life-5 Dimensions.

41 Patients were rejected for psychiatric reasons (28.28%). The most frequent diagnoses are impulse control disorder (39%), followed by eating disorder (27%). Other diagnoses found are: depressive disorder (10%), adjustment disorder (5%), personality disorders, intellectual disability and generalized anxiety disorder (3%) 78% of them are women.

Uncontrolled psychiatric pathology is a contraindication to bariatric surgery. Impulse control disorder and eating disorder are related to overweight and obesity, so a diagnosis and treatment are necessary prior planning surgical procedure. Psychopathological variables determine the success of bariatric surgery procedures and it is mandatory to consider them in the process.

No significant relationships.

To identify the prevalence and demographic characteristics of food insecurity in a presurgical bariatric population. To date there has been no research on food insecurity in a presurgical bariatric population.

Participants completed the ten-item adult food security survey module created by the US Department of Agriculture (USDA), with additional questions related to food shopping behaviours and perceived affordability of post-bariatric supplements. USDA scoring guidelines were used to classify participants as food secure, marginally food secure and food insecure.

Academic medical centre bariatric surgery clinic in Central Pennsylvania, USA.

Adult bariatric surgery candidates (n 174).

There was a prevalence of 17·8 % for food insecurity and 27·6 % for marginal food security. Food insecurity was associated with younger age, higher BMI, non-White race/ethnicity, having less than a college education, living in an urban area, receiving Medicaid/Medicare and participating in nutrition assistance programmes. Food-insecure participants endorsed food shopping behaviours that could interfere with postsurgical dietary adherence and perceived post-bariatric supplies as unaffordable or inaccessible.

These results highlight the importance of screening bariatric surgical patients for food insecurity. Further study of this important problem within the bariatric population should address effects of food insecurity and related shopping behaviours on postsurgical outcomes and inform the development of programmes to better assist these high-risk patients.