Bariatric Surgery Candidates Research Articles

BS O05 - Prevalence and Patterns of Iron Deficiency in Patients Living with Obesity: Insights from Bariatric Surgery Candidates

Abstract Background Iron deficiency anaemia (IDA) is a recognised complication of obesity, and its associated co-morbidities. Iron deficiency has been implicated in immunologic dysfunction in obesity. However, the patterns of iron deficiency in people with obesity, independent of IDA, and its implications for patients with obesity remain unclear. This study aimed to investigate potential causes of iron deficiency, including relationship with glycaemic control and relationship with systemic inflammation. Relationship between iron deficiency and body mass index (BMI) was also considered. Method A retrospective review of a prospectively maintained database of consecutive patients undergoing bariatric surgery was performed. Pre-operative haematologic assessments were reviewed, and linear regression models were used to identify the associations of iron deficiency in patients with obesity. Statistical analysis was performed using SPSS. 384 consecutive patients over a 2-year time period were included in the analysis. 72.1% of patients were female and the mean age was 49.44±10.2. The mean weight of included patients was 144.1±31.02 kg, and the mean BMI was 50.66±9.61 kg/m2 Results ​2.45% of patients met the criteria for iron deficiency anaemia. However, 15.49 % had low serum iron(<9 mmol/L), 12.1% had low ferritin(<30mg/L), 1.38% had low transferrin(<2g/L), 15.17% had high Total Iron Binding Capacity(>71.6mmol/L), 37.93% had low transferrin saturation(<20%). High BMI was a significant predictor of low serum iron(β=-0.206, p=0.031). Dysregulated glycaemic metabolism(HbA1c and glucose) was not a significant predictor of iron deficiency. Baseline inflammation (elevated CRP) was associated with low serum iron(β=-0.320, p=<0.001) and low transferrin(β=-0.205, p=0.028). Conclusion Iron deficiency in patients with obesity is common, but not iron deficiency anaemia dependent. It does not appear to be linked to patients’ glycaemic regulation, as previously thought. Our findings suggest it may instead be attributable to the systemic inflammation caused by obesity.

Nutritional status of Saudi obese patients undergoing laparoscopic sleeve gastrectomy, one-year follow-up study.

Bariatric surgery has significantly increased globally as an effective treatment for severe obesity. Nutritional deficits are common among candidates for bariatric surgery, and follow-up of nutritional status is critically needed for post-surgery healthcare management. This observational prospective study was conducted at King Khalid University Hospital in Riyadh. Samples were collected pre- and post-laparoscopic sleeve gastrectomy (LSG), with the visit intervals divided into four visits: pre-surgery (0M), 3 months (3M), 6 months (6M) and 12 months (12M). Food intake and eating patterns significantly changed during the first year (P < 0·001). The mean energy intake at 3M post-surgery was 738·3 kcal, significantly lower than the pre-surgery energy intake of 2059 kcal. Then, it increased gradually at 6M and 12M to reach 1069 kcal (P < 0·00). The intake of Fe, vitamin B12 and vitamin D was below the dietary reference intake recommendations, as indicated by the 24-hour dietary recall. The prevalence of 25 (OH) vitamin D deficiency improved significantly from pre- to post-surgery (P < 0·001). Vitamin B12 deficiency was less reported pre-LSG and improved steadily towards a sufficient post-surgery status. However, 35·7 % of participants were deficient in Fe status, with 28·6% being female at higher levels than males. While protein supplementation decreased significantly over the 12M follow-up, the use of vitamin supplements dramatically increased at 3 and 6M before declining at 12M. Fe and vitamin B12 were the most popular supplements after vitamin D. This study confirms the necessity for individualised dietary plans and close monitoring of candidates' nutritional status before and after bariatric surgery.

PSYCHOSOCIAL FACTORS AND CURRENT PRACTICES IN THE PSYCHOLOGICAL ASSESSMENT PROCESS FOR BARIATRIC SURGERY: A literature review

The psychological evaluation for bariatric surgery is mandatory, and its conduction by the psychologist must adhere to professional principles and guidelines, as well as specific legislation. Therefore, the study aimed to investigate the process of psychological evaluation for bariatric surgery and, additionally, to identify the psychological factors assessed and the instruments used in the process. This is a bibliographic research with data collection conducted between September and October 2023, in electronic databases such as Lilacs, Scielo, PubMed, and Pepsic, including full-text, open-access scientific articles published from 2018 to 2023. A total of 119 articles were found, of which 14 were selected for analysis. As a result, four categories were identified regarding psychological evaluation in bariatric surgery: 1) Importance of evaluation: involves expectations, support network, stress, and mental health; 2) Relevant psychosocial factors: such as social support and lifestyle; 3) Resources used: tools like BDI–II, BAI, ECAP, BAROS, EFS, IDATE, and LIS-A to assess emotional and cognitive aspects; 4) Challenges: highlight the complexity and the need for a multidisciplinary approach. Difficulties faced by psychologists in conducting these evaluations were also identified, requiring well-structured strategies and practices. Based on these findings, it is crucial that the responsible bodies—such as the Federal Council of Psychology—coordinate efforts, as the implementation of specific documents benefits psychologists and candidates for bariatric surgery by providing clear guidelines and standardizing procedures, making the professional practice more precise, safe, and accessible.

Blood-based MASH diagnostic in candidates for bariatric surgery using mid-infrared spectroscopy: a European multicenter prospective study

Metabolic dysfunction-associated steatotic liver disease (MASLD) is common in individuals with obesity. Sexual dimorphism is present in MASLD. A noninvasive test to diagnose the severity of the disease, in particular the presence of Metabolic dysfunction-associated steatohepatitis (MASH), is lacking. This European multicenter prospective study uses a blood test based on mid-infrared (MIR) metabolic fingerprinting of individuals with severe or morbid obesity to diagnose MASH. Three hundred eighty-two individuals with severe or morbid obesity undergoing bariatric surgery were enrolled prospectively. Liver biopsies were obtained during surgery and assessed centrally. An algorithm was defined to calculate a score from the recorded MIR spectrum and to establish a diagnostic threshold to classify patients with MASH. Among the women (n = 217), MASH was diagnosed in 14.3% of cases. For women, the performance in terms of AUC were 0.83 and 0.82 in the calibration and validation groups, respectively. For a threshold of 0.1817, sensitivities were 86% and 70%, specificities were 81% and 75%, PPV were 43% and 32%, NPV were 97% and 94% and ACC were 82% and 74% for the calibration and validation groups, respectively. For men (n = 78; MASH: 33.3%), the performance of the spectral model was poor. The metabolic fingerprint obtained by MIR spectroscopy can rule out MASH in women with severe or morbid obesity. Its value in men needs new studies.Trial registration: ClinicalTrials.gov identifier: ClinicalTrials.gov identifier: NCT03978247 (04/06/2019)

IFSO Bariatric Endoscopy Committee Evidence-Based Review and Position Statement on Endoscopic Sleeve Gastroplasty for Obesity Management.

Obesity is a significant global health issue. Metabolic and bariatric surgery (MBS) is the gold standard in the treatment of obesity due to its proven effectiveness and safety in the short and long term. However, MBS is not suitable for all patients. Some individuals are at high surgical risk or refuse surgical treatment, while others do not meet the criteria for MBS despite having obesity-related comorbidities. This gap has driven the development of endoscopic solutions like endoscopic sleeve gastroplasty (ESG), which offers a less invasive alternative that preserves organ function and reduces risks. A recent IFSO International Delphi consensus study highlighted that multidisciplinary experts agree on the utility of ESG for managing obesity in patients with class I and II obesity and for those with class III obesity who do not wish to pursue or qualify for MBS. This IFSO Bariatric Endoscopy Committee position statement aims to augment these consensus statements by providing a comprehensive systematic review of the evidence and delivering an evidence-based position on the value of ESG within the spectrum of obesity management. A comprehensive systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) and Cochrane guidelines. Systematic Review: The systematic review included 44 articles encompassing 15,714 patients receiving ESG. The studies varied from large case series to cohort studies and a randomized controlled trial (RCT). The mean baseline BMI was 37.56kg/m2. The review focused on weight loss outcomes and safety data. Time point Mean %EWL Mean %TBWL 6months 48.04 15.66 12months 53.09 17.56 18months 57.98 16.25 24months 46.57 15.2 36months 53.18 14.07 60months 45.3 15.9 These results demonstrate significant weight loss following ESG. The pooled serious adverse event (SAE) rate was 1.25%. This low rate of SAEs indicates that ESG is a relatively safe procedure. The quality of evidence from the included observational studies was assessed as very low, primarily due to the inherent limitations associated with observational study designs, such as potential biases and lack of randomization. In contrast, the quality of evidence from the single randomized controlled trial was rated as MODERATE, reflecting a more robust study design that provides a higher level of evidence despite some limitations. The IFSO Bariatric Endoscopy Committee, after conducting a comprehensive systematic review and meta-analysis, endorses endoscopic sleeve gastroplasty (ESG) as an effective and valuable treatment for obesity. ESG is particularly beneficial for patients with class I and II obesity, as well as for those with class III obesity who are not suitable candidates for metabolic bariatric surgery. ESG provides significant weight loss outcomes and demonstrates a favorable safety profile with a low rate of serious adverse events. Despite the limitations of the included observational studies, the randomized controlled trial included in the analysis reinforces the efficacy and safety of ESG and provides an evidence-based foundation for the position statement. Thus, the IFSO position statement supports and provides an evidence base for the role of ESG within the broader spectrum of obesity management.

Utilization patterns of glucagon like Peptide-1 receptor agonists prior to bariatric and metabolic surgery: a multicenter study

BackgroundGlucagon-like-peptide-1 receptor agonists (G1RA) have gained popularity as a treatment for weight loss in patients who are overweight or obese, but their utilization patterns and impact on candidates for metabolic and bariatric surgery (MBS) remain understudied. ObjectiveWe aimed to investigate the prevalence, characteristics, and outcomes of patients with a history of G1RA utilization among MBS candidates. SettingFive high-volume MBS centers in Israel. MethodsData were collected retrospectively from February 1st, 2023, to September 30th, 2023. Demographic, clinical, and treatment data were analyzed to assess a history of G1RA use, associated factors, adverse events, and treatment outcomes. ResultsFour hundred thirty-four MBS candidates were included in the study. A history of G1RA utilization was obtained in 275 (63%) MBS candidates, with Liraglutide and Semaglutide being the most commonly used agents. Younger age, type 2 diabetes mellitus, dyslipidemia, and no previous MBS history were associated with a higher rate of G1RA utilization. With these medications, median maximal weight loss was 5.38 kg, and mean duration of use was 19 weeks. Patients using G1RA for ≥6 weeks experienced significantly greater weight loss compared to those using it for shorter periods (6.3 ± 6.43 vs 1.65 ± 1.69; P < .001). GI-related adverse events were reported in 57.8% of patients. Over 95% of patients discontinued G1RA due to insufficient weight loss and/or adverse effects. Patients reaching the maximal recommended dose exhibited significantly greater weight loss versus patients who did not reach it for both Liraglutide (5.9 ± 4.98 kg vs. 3.9 ± 5.53 kg; P = .03) and Semaglutide (6.5 ± 7.8 kg vs. 2.5 ± 3.8 kg; P = .016). ConclusionPre-MBS G1RA utilization and failure are prevalent among MBS candidates. Our study underscores the need for further research to understand the role of G1RA therapy in obesity management and the development of guidelines for its appropriate use in MBS candidates.

Exploring the relationship between problematic eating behaviors and bipolar disorder: A study on candidates for bariatric surgery

BackgroundObesity is a major concern in patients with bipolar disorder (BD) and problematic eating behaviors have been suggested to mediate their relationship. The association between problematic eating behaviors and obesity has been studied but limited data have explored the role of BD. We investigated problematic eating behaviors among patients with BD compared with candidates for bariatric surgery (BS), with or without BD, and explored the possible correlations between mood spectrum, impulsivity, body mass index (BMI). Methods50 euthymic patients with BD and 200 subjects eligible for BS, 48 with BD (BS + BD) and 152 without BD (BS-BD), were recruited at the Psychiatric Clinic of University of Pisa. Assessments included: Structured Clinical Interview (SCID-5), Emotional Eating Scale (EES), Yale Food Addiction Scale (YFAS), Eating Disorder Inventory (EDI-2), Eating Disorder Questionnaire (EDE-Q), Night Eating Scale (NES), Grazing Questionnaire (GQ), Mood Spectrum Self-Report (MOOD-SR), Barratt Impulsivity Scale (BIS). ResultsBS + BD reported significantly higher EDI-2 and EDE-Q scores than the other groups. BD and BS + BD showed significantly higher BIS-11 scores than BS-BD. Among BS, EES and YFAS were associated with mood spectrum symptoms. LimitationsSmall BD sample size, BS may have underreported psychiatric symptoms to get approved for surgery, the interview didn't inquire about BS receiving GLP-1 agonists therapy. ConclusionsResults showed a high prevalence of problematic eating behaviors among patients with BD and severely obese. Problematic eating behaviors may aggravate BD symptoms. Mood spectrum symptoms in obese subjects need to be carefully researched in as relate to severity and post-surgical course of BS.

Preoperative Micronutrient Repletion Strategies in Metabolic and Bariatric Surgery: A Systematic Review

BackgroundEvidence is lacking to inform how micronutrient deficiencies should be prevented and treated before metabolic-bariatric surgery to optimize patient outcomes. ObjectiveThis systematic review aimed to examine the effect of preoperative repletion strategies for micronutrient deficiencies on micronutrient biochemistry, quality of life, and complication rates among candidates for metabolic and bariatric surgery compared with usual care, alternate strategies, or no treatment. MethodsPubMed, Embase, CINAHL, and CENTRAL was searched in April 2024. A grey literature search was updated in April 2024 via Google search. Eligible observational and interventional studies were those that provided micronutrient repletion before the surgery and measured micronutrient status pre- and/or postsurgery. Studies with participants who were pregnant, lactating, or elected jejunocolic bypass, jejunoileal bypass, vertical banded gastroplasty, and biliopancreatic diversion were excluded. Risk of bias was assessed using the Academy of Nutrition and Dietetics Quality Criteria Checklist. Findings were narratively synthesized and the Grading of Recommendation, Assessment, Development and Evaluations was adopted when applicable. Twenty studies (n = 27 groups) were included (n = 15 observational; n = 5 interventional). ResultsStrategies targeted vitamins A, D, E, B6, B12, C, thiamin, folate, calcium, iron, selenium, and zinc, including chronic dosing of oral supplements and multivitamins (n = 21), megadoses of oral supplements (n = 1), intramuscular injection (n = 1), intravenous infusion (n = 1), and a mix of injection and oral supplements (n = 3). Preoperative repletion strategies varied in efficacy. Chronic dosing of oral supplements increased vitamin D levels (n = 4 interventional studies; Grading of Recommendation, Assessment, Development and Evaluations rating: moderate). Multivitamins did not improve vitamin B12 status but improved status of vitamin B6, vitamin C, and folate. Iron infusion (n = 1) increased ferritin levels, despite small sample size and low adherence rate, whereas oral iron supplementation resulted in unchanged (n = 4) or decreased (n = 1) ferritin levels. ConclusionsProactive and personalized micronutrient repletion schedules may decrease the risk of preoperative and early postoperative deficiency.

Development of the International Federation for Surgery of Obesity and Metabolic Disorders-European Chapter (IFSO-EC) Grade-Based Guidelines on the Surgical Treatment of Obesity Using Multimodal Strategies: Design and Methodological Aspects.

Background: The prevalence of obesity is already a worldwide health concern. The development of straightforward guidelines regarding the whole available armamentarium (i.e., medical, endoscopic, and surgical interventions in conjunction with a guidance program) is paramount to offering the best multimodal approach to patients with obesity. Methods: The International Federation for Surgery of Obesity and Metabolic Disorders-European Chapter (IFSO-EC) identified a panel of experts to develop the present guidelines. The panel formulated a series of clinical questions (based on the patient, intervention, comparison, and outcome conceptual framework), which have been voted on and approved. A GRADE methodology will be applied to assess the quality of evidence and formulate recommendations employed to minimize selection and information biases. This approach aims to enhance the reliability and validity of recommendations, promoting greater adherence to the best available evidence. Results: These guidelines are intended for adult patients with a body mass index (BMI) ≥ 30 kg/m2 who are candidates for metabolic bariatric surgery (MBS). The expert panel responsible for developing these guidelines comprised 25 panelists (92% were bariatric surgeons) and 3 evidence reviewers, with an average age of 50.1 ± 10.2 years. The panel focused on 3 key questions regarding the combined use of structured lifestyle interventions, approved obesity management medications, and endoscopic weight loss procedures with MBS. Conclusions: The complexity of obesity as a chronic disease requires a comprehensive knowledge of all the available and feasible therapeutic options. The IFSO-EC society felt the urgent need to develop methodologically valid guidelines to give a full picture and awareness of the possible surgical and non-surgical therapeutic strategies employed with a multimodal approach.

Relationship between physical activity levels and body composition of candidates for bariatric surgery: a pilot study

Obesity is a public health issue that is associated with the development of cardiometabolic and musculoskeletal multimorbidities, such as sarcopenia. Furthermore, the population with severe obesity confronts various barriers that hinder the practice of physical exercise, which exposes them to greater risk and fragility. In light of this, a pilot study was conducted to characterize the population eligible for bariatric surgery regarding body composition and physical activity levels and verify the relationship between the degrees of the degrees of obesity and sarcopenia. In total, a sample of 41 individuals were included in the analysis, all of whom were female, with an average age of 45 years and weighing 108 kilos, mostly with sarcopenia (28 individuals). It was possible to observe a significant difference in the fat mass of the population with Obesity in Class 2 and 3 (p&gt; 0.001), Class 2 and 4 (p&gt; 0.001), Class 3 and 4 (p &gt; 0.002), and in the % fat of the population with Class 2 and 3 obesity (p&gt; 0.001) and Class 2 and 4 ((p&gt; 0.002), both with strong effect sizes (0.7 and 0.5, respectively). It was possible to observe a significant difference in lean mass between the sarcopenia classification groups (p&lt;0.001) but no significant difference was observed between the physical activity levels. The candidates for bariatric surgery predominantly have Class II and III obesity, interfering with body composition (lean mass, % body fat, and BMD), and, consequently, exposing greater physical and functional fragility. Although sarcopenia and a sedentary lifestyle are presented in the literature as conditions that impact body composition, it was not possible to identify significant differences in the sample. Keywords: Sarcopenia. Obesity. Body mass index.

Changes in Fat Mass Index and Fat-Free Mass Index Vary Significantly by Age and Sex of the Patient, and by Type of Bariatric Surgery.

The loss of fat-free mass after rapid weight loss following bariatric surgery shows BMI is inadequate for reporting weight loss, emphasizing the need for a more accurate body composition metric. This study assessed changes in fat mass index (FMI), fat-free mass index (FFMI), and dietary intake over 6months after one-anastomosis gastric bypass (OAGB), Roux-en-Y gastric bypass (RYGB), and sleeve gastrectomy (SG) across age and sex groups. This prospective observational study included 151 bariatric surgery candidates. Data on demographics, anthropometric, body composition, and food intake data were collected before and 6months after surgery. SPSS version 22 was used for analysis, employing ANOVA and t-tests to assess group differences. Younger patients (≤ 35years) had higher percent total and excess weight loss (%TWL and %EWL) across all bariatric surgeries, and those undergoing SG experienced more favorable changes in fat-free mass (FFM) and visceral fat compared to other procedures (P = 0.002). Males had higher percent change in fat mass index (%∆ FMI) and visceral fat than females with OAGB and RYGB (P < 0.05). Women undergoing SG and RYGB had a more significant decrease in energy intake compared to OAGB (P < 0.001), and the ≤ 35 and 35-44 age groups demonstrated lower reductions in energy intake following OAGB. Age, sex, and surgery type significantly affect bariatric surgery outcomes. Younger patients achieved greater weight-related improvements, while men undergoing RYGB experienced more substantial fat mass changes than women.

Cardiovascular disease among bariatric surgery candidates: coronary artery screening and the impact of metabolic syndrome

BackgroundObesity is known as a risk factor for cardiovascular disease (CVD). However, there is an absence of preoperative cardiac risk assessment in bariatric surgery candidates and the incidence of CVD among these high-risk patients is still unknown.MethodsA consecutive series of bariatric surgery candidates at two Chinese tertiary hospitals received coronary CT angiography or coronary angiography from 2017 to 2023. Patients were categorized as metabolically unhealthy obesity (MUO) and metabolically healthy obesity (MHO) based on the presence or absence of MetS. CVD was diagnosed based on the maximum intraluminal stenosis > 1% in any of the segments of the major epicardial coronary arteries. Obstructive CVD was defined as coronary stenosis ≥ 50%. Binary multivariable logistic regression was performed to analyze the association between CVD and metabolic status. The number of principal MetS components was categorized into zero (without glycemic, lipid, and BP components), one (with one of the components), two (with any two components), and three (with all components) to explore their association with CVD.ResultsA total of 1446 patients were included in the study. The incidence of CVD and obstructive CVD were 31.7% and 9.6%. Compared with MHO patients, MUO patients had a significantly higher incidence of mild (13.7% vs. 6.1%, P < 0.05), moderate (7.4% vs. 0.8%, P < 0.05), and severe CVD (3.1% vs. 0%, P < 0.05). Following complete adjustment, compared with zero or one component, two principal MetS components was found to be associated with a notable increase in the risk of CVD (OR 2.05, 95% CI 1.18–3.58, P < 0.05); three principal MetS components were observed to have a higher risk of CVD and obstructive CVD (OR 2.68, 95% CI 1.56–4.62, P < 0.001; OR 3.93, 95% CI 1.19–12.93, P < 0.05). Each increase in the number of principal MetS components correlated with a 1.47-fold (95% CI 1.20–1.81, P < 0.001) and 1.78-fold (95% CI 1.24–2.55, P < 0.05) higher risk of CVD and obstructive CVD, respectively.ConclusionThis study reported the incidence of CVD based on multicenter bariatric surgery cohorts. CVD is highly prevalent in patients with obesity, especially in MUO patients. Increased number of principal MetS components will significantly elevate the risk of CVD.

Quality of Life and Psychological Changes in Bariatric Surgery: An Observational Study.

Candidates for bariatric surgery may have psychiatric disorders that must be evaluated. The aim of this study was to describe the psychological state and quality of life (QoL) of patients with obesity awaiting bariatric surgery prior to surgical procedure and 1 year after surgery. A longitudinal retrospective observational study was carried out in 71 patients awaiting bariatric surgery. Anthropometric data were collected, and the following were evaluated before and 1 year after the intervention: 44 patients were evaluated to rule out personality disorder, using the Salamanca Questionnaire of Personality Disorders; eating disorder, with the Bulimia Test of Edinburgh (BITE); depression, using the Beck Depression Inventory (BDI); and 71 patients were evaluated QoL, with the "36-Item Short Form Health Survey" (SF-36). A total of 34.1% (n = 15) of patients presented personality disorder (group B most frequent). A total of 31.8% (n = 14) obtained scores suggesting anomalous food behavior (6.8%, n = 3 severe). According to the BDI, 43.2% (n = 19) showed low mood prior to the intervention. Lower scores were obtained when evaluating QoL for physical functioning (physical function: 56.81 ± 24.9; physical problems: 66.76 ± 37.64). One year after the intervention, QoL improved in those patients who underwent the sleeve gastrectomy (SG). Patients with bariatric surgery more frequently presented with type B and C personalities. One year after bariatric surgery, an improvement in QoL test was observed. Patients who underwent SG technique showed better mean scores than those after biliopancreatic diversion.

Perceived Responsibility for Bariatric Surgery, Eating, and Exercise Behaviors Among Adolescent Bariatric Surgery Candidates.

Background: Adolescents' perceived responsibility for weight management behaviors has yet to be studied in relation to bariatric surgery. The current study examined perceived responsibility to pursue bariatric surgery and engage in specific weight management behaviors among adolescents seeking bariatric surgery and its associations with demographic, family support, and eating disorder symptoms. Methods: Data were collected using retrospective chart review of adolescent bariatric surgery candidates presenting to a tertiary interdisciplinary clinic. Data included demographics and adolescents' self-report of (1) perceived responsibility (i.e., primarily adolescent; primarily parent; shared) for the decision to pursue bariatric surgery and weight management behaviors, (2) family support for eating and exercise behaviors, and (3) eating disorder symptoms. Analyses included one-way analysis of covariance, chi-squared tests, and Kruskal-Wallis tests. Results: Participants reporting primarily teen or shared responsibility for seeking bariatric surgery were older than those reporting primarily parent responsibility (p = 0.023). Teens perceiving primary responsibility for their own healthy eating reported less family encouragement for healthy eating (p = 0.011) and more eating disorder symptoms (p = 0.002) than those reporting primarily parent or shared responsibility. Teens reporting primary responsibility for exercise reported less family encouragement for healthy eating (p = 0.012) compared with those reporting shared responsibility. Conclusions: This study is the first to provide a description of health behavior responsibilities in a sample of adolescents with severe obesity seeking bariatric surgery. Not only will these insights improve our understanding of this population, but it can also inform presurgical discussions with adolescents and their parents.

Attention-deficit/hyperactivity disorder in adolescent and adult candidates for metabolic and bariatric surgery: A systematic review and meta-analysis.

Attention-deficit with hyperactivity disorder (ADHD) is associated with obesity and impacts the outcome of metabolic and bariatric surgery (MBS). This study aimed at calculating the prevalence in candidates for MBS, which is yet unclear. We conducted a systematic review and meta-analysis, searching three databases from their respective inception to December 2022 for studies reporting the prevalence of ADHD in adolescents and adults assessed before undergoing MBS. The protocol was registered in PROSPERO (CRD42022384914). We adhered to Meta-analysis of Observational Studies in Epidemiology (MOOSE) and Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines; the quality of studies was assessed with the JBI Critical Appraisal checklist. Random-effect meta-analyses were performed; confidence intervals were computed with a binomial exact method, and the pooled estimate was calculated after double arcsine transformation. Fourteen studies (24,455 adults) and three studies (299 adolescents) were selected. The quality of studies was moderate to poor; meta-analyses were performed on subgroups according to the case definition used. The prevalence is 8.94% and 9.90% in adults, and 28.73% in adolescents. ADHD is three times more frequent in adults and six times more frequent in adolescents than in the general population. Recommendations are provided to improve the quality of future studies and obtain more reliable estimates of prevalence.

Upper Gastrointestinal Endoscopic Screening in Bariatric Surgery Candidates: Correlating the Findings with GERD symptoms.

The role of routine preoperative esophagogastroduodenoscopy (EGD) in bariatric surgery candidates is controversial. This study compares preoperative EGD outcomes with patient-reported gastroesophageal reflux disease (GERD) symptoms to determine if a case-based EGD is appropriate. A prospective cohort study was conducted from April 2022 through September 2023 in Mashhad, Iran. All patients underwent EGD. To assess GERD symptoms, we used the GERD-Health Related Quality of Life questionnaire. Patients were categorized into two groups: the asymptomatic group (GERD-HRQL = 0) and the symptomatic group (GERD-HRQL > 0). A total of 165 patients were included, out of which 133 (80.6%) were in the symptomatic group and 32 (19.4%) were in the asymptomatic group. Esophagitis was present in 41 (24.8%) patients. There was no significant difference in the frequency of esophagitis (18.8% vs. 26.3%, p-value = 0.37), hiatal hernia (18.8% vs. 18.8%, p-value = 1.00), gastritis (56.3% vs. 63.9%, p-value = 0.42), and H. pylori infection (9.4% vs. 12.0%, p-value = 1.00) between the asymptomatic and symptomatic groups, respectively. None of the demographic factors or comorbidities of asymptomatic patients were associated with esophagitis, except for hiatal hernia (OR = 7.67, 95% CI 3.01-19.53, p-value < 0.001). Receiver operating characteristic (ROC) analysis showed that the GERD-HRQL total scores, as well as the heartburn and regurgitation subscales, were poor predictors of esophagitis (AUC 0.57, 0.51, and 0.56, respectively). EGD findings were not associated with GERD symptoms in candidates for bariatric surgery.

High prevalence of dysfunctional uterine bleeding in candidates for metabolic/bariatric surgery: increased endometrial cancer risk?

BackgroundEndometrial cancer (EC) is the strongest obesity-associated malignancy and the fastest-growing cancer in young women. Early identification of EC and other endometrial pathology (malignant and nonmalignant) in women with severe obesity may improve treatment options and uterine preservation. Screening for endometrial pathology using abnormal or postmenopausal uterine bleeding (APUB) as a surrogate in women pursuing metabolic/bariatric surgery may be clinically beneficial, but data supporting this effort are limited. ObjectiveTo develop and institute a screening program for APUB as a surrogate for endometrial pathology in bariatric surgery candidates. SettingTwo, academic metabolic/bariatric surgery programs in Louisiana, United States. MethodsThe Modified SAMANTA is a 10-item questionnaire that was implemented to identify patients with APUB, specifically combining tools designed to identify anovulatory/postmenopausal and heavy menstrual bleeding. Demographic (age, race), body mass index, and questionnaire data were analyzed with respect to positive screening using data from March 2021 through May 2023. ResultsOf 1371 eligible women presenting for surgical evaluation, 664 (48.4%) positive screens were identified and referred for gynecologic evaluation to rule out endometrial hyperplasia/cancer or other endometrial pathology. The likelihood of positive screening for APUB was associated with increasing BMI (P = .001) and Black/African American race (P = .003), as well as increasing SAMANTA score (P < .001). In contrast, risk of positive screening was negatively associated with increasing age (P < .001). ConclusionsWomen presenting for metabolic/bariatric surgery have a high prevalence of APUB and, given this dysfunctional bleeding and concurrent obesity, are at greater risk for underlying EC. Potential risk factors for APUB, given their associations with screening positive, include increased body mass index, younger age, and Black/African American race. Standardized screening with appropriate gynecologic referral should be a routine part of the overall evaluation for women with severe obesity.

Prevalence of obstructive sleep apnea in obese patients candidates for bariatric surgery and predictive questionnaires

Introduction and objectivesObstructive sleep apnea (OSA) is a prevalent condition among electable to bariatric surgery obese patients, often remaining underdiagnosed, thereby increasing surgical risk. The main purpose was to determine prevalence of OSA among candidates for bariatric surgery and to assess the rate of underdiagnosis of this condition. Additionally, the study aimed to evaluate the specific performance of three sleep questionnaires and scales (Excessive Daytime Sleepiness Scale (EDSS), Epworth Sleepiness Scale (ESS), and STOP-Bang) in these patients. MethodsA longitudinal, prospective, single-cohort study, with consecutive sampling including patients aged 18–65 years with obesity grade II (body mass index (BMI) ≥ 35 kg/m2) and hypertension, type 2 diabetes, metabolic syndrome or OSA or obesity grade III or IV (BMI ≥ 40 kg/m2) elective for bariatric surgery. Patients were evaluated at the Otorhinolaryngology department with an anamnesis regarding OSA including the administration of three sleep questionnaires (EDSS, ESS, and STOP-Bang), followed by cardiorespiratory polygraphy (CRP) for sleep evaluation. Results124 patients were included in this study. While 74.2% of the sample exhibited OSA on CRP, only 28.2% had a prior diagnosis. The STOP-Bang questionnaire demonstrated the highest sensitivity (93.3%) for detecting moderate to severe OSA, although with low specificity (33.8%). EDSS and ESS did not show a significant association with the presence of OSA. ConclusionsOSA screening is crucial in candidates for bariatric surgery due to its high prevalence and low diagnosis rate. The STOP-Bang questionnaire may serve as a useful tool for identifying patients at risk of moderate to severe OSA and optimizing sleep assessments. However, further research is necessary to validate its utility in this specific population.

Laparoscopic Roux-en-Y Versus Mini-Gastric Bypass on Liver Function at 6 Months in Morbid Obesity Patients: A Cross-Sectional Study

Background: Various weight loss surgeries exist, with no absolute superiority; each has pros and cons. Due to rising bariatric surgeries globally, it's vital to investigate comparisons between two-mini gastric bypass and Roux-en-Y gastric bypass (RYGB), especially regarding their impact on liver function. Objectives: The purpose of this study was to "draw comparisons between the effects of mini gastric bypass and laparoscopic Roux-en-Y gastric bypass on liver function at 6 months among patients with morbid obesity." Methods: This cross-sectional study included 90 bariatric surgery candidates (Body Mass Index (BMI) 35 - 50) from 2018 - 2021. Forty-five had laparoscopic mini gastric bypass surgery, while 45 had Roux-en-Y gastric bypass. Demographic, anthropometric, lab, and sonographic tests were conducted at baseline, 3-, and 6-months post-surgery. Data was analyzed using SPSS. Results: In a study of 90 patients (75.6% female, mean age 38.6 ± 10.4 years), both surgeries (Mini gastric bypass (MGB) and RYGB) effectively reduced body weight, BMI, and waist circumference at 3- and 6-months post-surgery. However, MGB showed significantly higher BMI and weight loss compared to RYGB (P = 0.003). In 90 patients, both surgeries reduced weight and BMI. However, MGB showed better BMI/weight loss. LFTs (ALT, AST, ALP) remained stable after MGB but worsened at 3 months after RYGB before recovering by 6 months. Mini gastric bypass also showed better GGT improvement. Both procedures improved fatty liver grading, FBS, and HbA1C levels equally. No significant differences were observed in blood pressure, platelet count, hemoglobin, or MCV. Ferritin levels increased in both groups but were higher in RYGB. CRP was higher in RYGB at 3 months. Conclusions: Roux-en-Y gastric bypass temporarily exacerbated liver enzymes and inflammation, but MGB resulted with more weight reduction. In comparison to RYGB, MGB improved LFTs more consistently.

Moderate-Intensity Constant and High-Intensity Interval Training Confer Differential Metabolic Benefits in Skeletal Muscle, White Adipose Tissue, and Liver of Candidates to Undergo Bariatric Surgery.

Background/Objectives: Bariatric surgery candidates require presurgical physical training, therefore, we compared the metabolic effects of a constant moderate-intensity training program (MICT) vs. a high-intensity interval training (HIIT) in this population. Methods: Seventeen participants performed MICT (n = 9, intensity of 50% of heart rate reserve (HRR) and/or 4-5/10 subjective sensation of effort (SSE)) or HIIT (n = 8, 6 cycles of 2.5 min at 80% of the HRR and/or 7-8/10 of SSE, interspersed by 6 cycles of active rest at 20% of the FCR) for 10 sessions for 4 weeks. After training, tissue samples (skeletal muscle, adipose tissue, and liver) were extracted, and protein levels of adiponectin, GLUT4, PGC1α, phospho-AMPK/AMPK, collagen 1 and TGFβ1 were measured. Results: Participants who performed MICT showed higher protein levels of PGC-1α in skeletal muscle samples (1.1 ± 0.27 vs. 0.7 ± 0.4-fold change, p < 0.05). In the liver samples of the people who performed HIIT, lower protein levels of phospho-AMPK/AMPK (1.0 ± 0.37 vs. 0.52 ± 0.22-fold change), PGC-1α (1.0 ± 0.18 vs. 0.69 ± 0.15-fold change), and collagen 1 (1.0 ± 0.26 vs. 0.59 ± 0.28-fold change) were observed (all p < 0.05). In subcutaneous adipose tissue, higher adiponectin levels were found only after HIIT training (1.1 ± 0.48 vs. 1.9 ± 0.69-fold change, p < 0.05). Conclusions: Our results show that both MICT and HIIT confer metabolic benefits in candidates undergoing bariatric surgery; however, most of these benefits have a program-specific fashion. Future studies should aim to elucidate the mechanisms behind these differences.