scholarly journals Study rationale and protocol of the BARICO study: a longitudinal, prospective, observational study to evaluate the effects of weight loss on brain function and structure after bariatric surgery

BMJ Open ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. e025464
Author(s):  
Debby Vreeken ◽  
Maximilian Wiesmann ◽  
Laura N Deden ◽  
Ilse A C Arnoldussen ◽  
Esther Aarts ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Brain Function ◽  
Neuropsychological Tests ◽  
Small Sample ◽  
Tissue Samples ◽  
Patients Âgés ◽  
Brain Structure And Function ◽  
Small Sample Sizes

IntroductionWeight loss after bariatric surgery (BS) is often associated with improved cognition and structural brain recovery. However, improved cognition after BS is not always exhibited by patients, in fact, in some cases there is even a decline in cognition. Long-term consequences of BS weight loss, in terms of obesity and related diseases, can be hard to determine due to studies having short follow-up periods and small sample sizes.The aim of the BARICO study (BAriatric surgeryRijnstate and Radboudumc neuroImaging andCognition inObesity) is to determine the long-term effect of weight loss after BS on brain function and structure, using sensitive neuropsychological tests and (functional) MRI ((f)MRI). Secondary study endpoints are associated with changes in metabolic and inflammation status of adipose tissue, liver and gut, in relation to brain structure and function. Also, the possible correlation between weight loss, gut microbiota composition change and neuropsychological outcomes will be investigated.Methods and analysisData from 150 Dutch BS patients (ages between 35 and 55, men and women) will be collected at various time points between 2 months before and up to 10 years after surgery. Neuropsychological tests, questionnaires, blood, faeces and tissue samples will be collected before, during and after surgery to measure changes in cognition, microbiota, metabolic activity and inflammation over time. A subgroup of 75 participants will undergo (f)MRI in relation to executive functioning (determined by the Stroop task), grey and white matter volumes and cerebral blood flow. Regression analyses will be used to explore associations between weight loss and outcome measures.Ethics and disseminationThis study has been approved by the medical review ethics committee CMO Region Arnhem and Nijmegen (NL63493.091.17). Research findings will be published in peer-reviewed journals and at conferences.Trial registration numberNTR7288.

Bariatric Surgery in Patients With Inflammatory Bowel Disease: A Case-Control Study from the GETAID

2021 ◽  
Author(s):  
Catherine Reenaers ◽  
Arnaud de Roover ◽  
Laurent Kohnen ◽  
Maria Nachury ◽  
Marion Simon ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Inflammatory Bowel Disease ◽  
Weight Loss ◽  
Bowel Disease ◽  
Small Sample ◽  
Control Group ◽  
Prevalence Of Obesity ◽  
History Of ◽  
Inflammatory Bowel ◽  
Small Sample Sizes

Abstract Background The prevalence of obesity and the number of bariatric surgeries in both the general population and in patients with inflammatory bowel disease (IBD) have increased significantly in recent years. Due to small sample sizes and the lack of adequate controls, no definite conclusions can be drawn from the available studies on the safety and efficacy of bariatric surgery (BS) in patients with IBD. Our aim was to assess safety, weight loss, and deficiencies in patients with IBD and obesity who underwent BS and compare findings to a control group. Methods Patients with IBD and a history of BS were retrospectively recruited to centers belonging to the Groupe d’Etude Thérapeutique des Affections Inflammatoires du Tube Digestif (GETAID). Patients were matched 1:2 for age, sex, body mass index (BMI), hospital of surgery, and type of BS with non-IBD patients who underwent BS. Complications, rehospitalizations, weight, and deficiencies after BS were collected in cases and controls. Results We included 88 procedures in 85 patients (64 Crohn’s disease, 20 ulcerative colitis, 1 unclassified IBD) with a mean BMI of 41.6 ± 5.9 kg/m2. Bariatric surgery included Roux-en-Y gastric bypass (n = 3), sleeve gastrectomy (n = 73), and gastric banding (n = 12). Eight (9%) complications were reported, including 4 (5%) requiring surgery. At a mean follow-up of 34 months, mean weight was 88.6 ± 22.4 kg. No difference was observed between cases and controls for postoperative complications (P = .31), proportion of weight loss (P = .27), or postoperative deficiencies (P = .99). Conclusions Bariatric surgery is a safe and effective procedure in patients with IBD and obesity; outcomes in this patient group were similar to those observed in a control population.

scholarly journals Personality Psychopathology: Longitudinal Prediction of Change in BMI and Weight Post-Bariatric Surgery

2019 ◽  
Author(s):  
Joshua R. Oltmanns ◽  
Jessica Rivera Rivera ◽  
Amanda Merchant ◽  
Jonathan Cole ◽  
Joshua Steiner
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Personality Assessment ◽  
Small Sample ◽  
Psychological Variables ◽  
Percent Excess Weight Loss ◽  
Personality Psychopathology ◽  
And Gender ◽  
Small Sample Sizes

Objective: Bariatric surgery is an effective treatment for obesity, which has been increasing worldwide. However, bariatric surgery causes dramatic physical changes that can cause significant stress. Prior research has found that psychological variables such as personality traits and levels of psychopathology can influence success after bariatric surgery (in terms of body-mass index [BMI] reduction and weight loss). However, most prior studies have been limited by small sample sizes, inconsistent follow-up, and categorical assessment of psychopathology. Methods: The present study examines the predictive utility of the Personality Assessment Inventory (PAI) scales for three bariatric surgery outcomes (BMI reduction, weight loss, and percent excess weight loss [%EWL]) across ten follow-up points five years after surgery. It also examines the largest sample of bariatric surgery-completing patients (N = 2,267) on the PAI to date. Latent growth modeling was used to examine change in the outcome variables. Results: Results indicate that personality and psychopathology variables predicted less BMI reduction, weight loss, and %EWL five years after surgery and also affected the trajectories of change in the outcome variables across time. The PAI scales predicted more variance in the five-year BMI outcomes than did age and gender. The most robust effects were for scales assessing phobias, traumatic stress, identity problems, and negative relationships. Conclusions: The PAI may be useful to clinical health psychologists who conduct recommended psychological evaluations with potential bariatric surgery candidates.

Dietary Supplements for Improving Body Composition and Reducing Body Weight: Where Is the Evidence?

2012 ◽  
Vol 22 (2) ◽  
pp. 139-154 ◽  
Author(s):  
Melinda M. Manore
Keyword(s):  
Weight Loss ◽  
Body Composition ◽  
Randomized Clinical Trials ◽  
Healthy Lifestyle ◽  
Small Sample ◽  
Weight Losses ◽  
Number Of Factors ◽  
Improve Body Composition ◽  
Small Sample Sizes

Weight-loss supplements typically fall into 1 of 4 categories depending on their hypothesized mechanism of action: products that block the absorption of fat or carbohydrate, stimulants that increase thermogenesis, products that change metabolism and improve body composition, and products that suppress appetite or give a sense of fullness. Each category is reviewed, and an overview of the current science related to their effectiveness is presented. While some weight-loss supplements produce modest effects (<2 kg weight loss), many have either no or few randomized clinical trials examining their effectiveness. A number of factors confound research results associated with the efficacy of weight-loss supplements, such as small sample sizes, short intervention periods, little or no follow-up, and whether the supplement is given in combination with an energy-restricted diet or increased exercise expenditure. There is no strong research evidence indicating that a specific supplement will produce significant weight loss (>2 kg), especially in the long term. Some foods or supplements such as green tea, fiber, and calcium supplements or dairy products may complement a healthy lifestyle to produce small weight losses or prevent weight gain over time. Weight-loss supplements containing metabolic stimulants (e.g., caffeine, ephedra, synephrine) are most likely to produce adverse side effects and should be avoided.

Abstract #240 Weight Loss Trajectory Following Randomization to Bariatric Surgery on Long-Term Diabetes Outcomes

2018 ◽  
Vol 24 ◽  
pp. 49
Author(s):  
Keren Zhou ◽  
Kathy Wolski ◽  
Ali Aminian ◽  
Steven Malin ◽  
Philip Schauer ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Diabetes Outcomes ◽  
Trajectory Following

Long-Term Weight Loss and Psychological Functioning in Bariatric Surgery Patients

2012 ◽  
Author(s):  
Leslie M. Schuh ◽  
David B. Creel ◽  
Joseph Stote ◽  
Katharine Hudson ◽  
Karen K. Saules ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Psychological Functioning

scholarly journals Long-Term Iron and Vitamin B12 Deficiency Are Present after Bariatric Surgery, Despite the Widespread Use of Supplements

2021 ◽  
Vol 18 (9) ◽  
pp. 4541
Author(s):  
Mauro Lombardo ◽  
Arianna Franchi ◽  
Roberto Biolcati Rinaldi ◽  
Gianluca Rizzo ◽  
Monica D’Adamo ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Vitamin B12 ◽  
Vitamin B12 Deficiency ◽  
Ideal Body Weight ◽  
Excess Weight ◽  
Nutritional Deficiencies ◽  
Average Percentage ◽  
Nutritional Studies

There are few long-term nutritional studies in subjects undergoing bariatric surgery that have assessed weight regain and nutritional deficiencies. In this study, we report data 8 years after surgery on weight loss, use of dietary supplements and deficit of micronutrients in a cohort of patients from five centres in central and northern Italy. The study group consisted of 52 subjects (age: 38.1 ± 10.6 y, 42 females): 16 patients had Roux-en-Y gastric bypass (RYGB), 25 patients had sleeve gastrectomy (SG) and 11 subjects had adjustable gastric banding (AGB). All three bariatric procedures led to sustained weight loss: the average percentage excess weight loss, defined as weight loss divided by excess weight based on ideal body weight, was 60.6% ± 32.3. Despite good adherence to prescribed supplements, 80.7% of subjects (72.7%, AGB; 76.7%, SG; 93.8 %, RYGB) reported at least one nutritional deficiency: iron (F 64.3% vs. M 30%), vitamin B12 (F 16.6% vs. M 10%), calcium (F 33.3% vs. M 0%) and vitamin D (F 38.1% vs. M 60%). Long-term nutritional deficiencies were greater than the general population among men for iron and among women for vitamin B12.

Grazing Behavior Hinders Weight Loss in Long-Term Post Bariatric Surgery: a Cross-Sectional Study

2021 ◽  
Author(s):  
Larissa Cristina Lins Berber ◽  
Mariana Silva Melendez-Araújo ◽  
Eduardo Yoshio Nakano ◽  
Kênia Mara Baiocchi de Carvalho ◽  
Eliane Said Dutra
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Grazing Behavior ◽  
Post Bariatric Surgery

scholarly journals Endoscopic Evaluation of Symptomatic Patients following Bariatric Surgery: A Literature Review

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Miral Subhani ◽  
Kaleem Rizvon ◽  
Paul Mustacchia
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Abdominal Pain ◽  
Drug Therapy ◽  
Upper Gastrointestinal Bleeding ◽  
Comorbid Conditions ◽  
Endoscopic Evaluation ◽  
Number Of Patients ◽  
Upper Gastrointestinal

Obesity is an epidemic in our society, and rates continue to rise, along with comorbid conditions associated with obesity. Unfortunately, obesity remains refractory to behavioral and drug therapy but has shown response to bariatric surgery. Not only can long-term weight loss be achieved, but a majority of patients have also shown improvement of the comorbid conditions associated with obesity. A rise in the use of surgical therapy for management of obesity presents a challenge with an increased number of patients with problems after bariatric surgery. It is important to be familiar with symptoms following bariatric surgery, such as nausea/vomiting, abdominal pain, dysphagia, and upper gastrointestinal bleeding and to utilize appropriate available tests for upper gastrointestinal tract pathology in the postoperative period.

Abstract P161: Variation in Five-Year Weight Loss Patterns Following Bariatric Surgery by Insurance Status

Circulation ◽  
2017 ◽  
Vol 135 (suppl_1) ◽  
Author(s):  
Erin Takemoto ◽  
Bruce Wolfe ◽  
Corey Nagel ◽  
Janne Boone-Heinonen
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Parameter Estimates ◽  
Similar Amount ◽  
Group Model ◽  
Specific Patient ◽  
Group 6 ◽  
Medicaid Beneficiaries ◽  
Trajectory Models

In the general population, bariatric surgery facilitates sustained weight loss and remission of comorbidities (e.g., CVD). The effectiveness among Medicaid beneficiaries, a population with a disproportionately high burden of obesity, remains unclear. We sought to determine if patterns of weight change following bariatric surgery differed in patients with Medicaid compared to commercial insurance. Data were obtained from the Longitudinal Assessment of Bariatric Surgery, an observational cohort study of adults undergoing bariatric surgery (2006-2009) at one of 6 geographically diverse centers. We used group-based trajectory models (PROC TRAJ, SAS) to identify discrete groups of individuals with similar weight trajectories over 5-years; we considered cubic trajectory models with between 1 and 6 groups. We selected the 6-group model based on Bayesian Information Criteria, visual fit and statistical significance of parameter estimates. We tested demographic predictors against trajectory group membership; Medicaid (n=174) vs. Commercial (n=991) was our primary predictor of interest. Medicaid participants had higher mean weight at baseline compared to the commercially insured (307.9 vs. 291.2 lbs), but lost a similar amount of weight over time (74.8 vs 85.0 lbs). All groups experienced the most weight loss in year 1 (Figure). Group 6 was the heaviest at baseline and began to regain weight after year 1; groups 1-5 continued to lose weight through year 2. Group’s 1 & 2 weight remained stable over 5 years while groups 3-6 began to slowly regain weight. Medicaid beneficiaries were more likely to be in group 4 (OR 3.2, 95% CI: 1.2, 8.6), group 5 (OR 5.7, 95% CI: 2.0, 16.1) and group 6 (OR 7.9, 95% CI: 2.5, 25.1) compared to group 1. Medicaid beneficiaries experience substantial long term weight loss. However, they had higher baseline weight and tended to be in groups with less long-term weight loss compared to the commercially insured. Focusing on tailored interventions to specific patient groups could help maintain weight loss.

scholarly journals Evaluation of the Effects of Bariatric Surgery in Terms of Weight Loss and Diabetes Remission in the Indian Population

2021 ◽  
pp. 1-7
Author(s):  
Manish Khaitan ◽  
Riddhish Gadani ◽  
Koshish Nandan Pokharel
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Gastric Bypass ◽  
Complete Remission ◽  
Predictive Factors ◽  
Indian Population ◽  
Diabetes Remission ◽  
Obese Patients ◽  
Sustained Weight Loss

<b><i>Objectives:</i></b> The growing prevalence of obesity rates worldwide is associated with an upsurge in its comorbidities, particularly type 2 diabetes mellitus (T2DM). Bariatric surgery is a proven treatment modality for producing sustained weight loss and resolution of associated T2DM providing marked improvement in quality of life with rapid recovery. This study aims to investigate the effects of laparoscopic sleeve gastrectomy (LSG), Roux-en-Y gastric bypass (RYGB), and mini-gastric bypass (MGB) on obese patients suffering from T2DM in the Indian population and their long-term association with regard to diabetes remission, resolution of comorbidities, and percentage EWL. <b><i>Methods:</i></b> Retrospective data of obese patients with T2DM (preoperative BMI 45.37 ± 8.1) who underwent bariatric surgery (RYGB, LSG, and MGB) were analyzed in this study over a period of 9 years. The mean follow-up period was 2.2 years. Following surgery, the clinical outcome on BMI, resolution of percentage weight loss, and T2DM were studied. The predictive factors of diabetic remission after surgery were determined. Student’s <i>t</i> test and ANOVA and McNemar’s test were applied. <b><i>Results:</i></b> Out of a total of 274 patients, complete remission of T2DM was achieved in 52.9% (<i>n</i> = 145) with mean fasting blood glucose and glycated hemoglobin values being 6.1 ± 0.769 (<i>p</i> = 0.00) at 1 year after surgery. The independent predictive factors of remission were age, gender, BMI, preoperative comorbidities, and % EWL. Gender had no correlation with the chance of achieving disease remission. <b><i>Conclusion:</i></b> Based on our results, bariatric surgery proves to be a successful treatment option resulting in sustained weight loss in obese patients suffering from T2DM. It is found to be beneficial for the long-term resolution of T2DM and improving comorbidities such as hypertension and dyslipidemia. The outcome of the different surgical methods is found to be similar for all patients irrespective of the independent predictors of complete remission.

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