Long-Term Outcomes after Adolescent Bariatric Surgery

Obesity management in primary care: A joint clinical perspective and expert review from the Obesity Medicine Association (OMA) and the American College of Osteopathic Family Physicians (ACOFP) - 2025

Background

This collaboration from the Obesity Medicine Association (OMA) and the American College of Osteopathic Family Physicians (ACOFP) examines obesity management from a primary care perspective.

Methods

This joint perspective is based upon scientific evidence, clinical experience of the authors, and peer review by the OMA and ACOFP leadership. The goal is to identify and answer sentinel questions about obesity management from a primary care perspective, utilizing evidence-based publications, and guided by expert clinical experience.

Results

Obesity is a disease that contributes to both biomechanical complications and the most common cardiometabolic abnormalities encountered in primary care. Barriers that impede optimal care of patients with obesity in primary care include failure to recognize obesity as a disease, lack of accurate diagnosis, insufficient access to obesity treatment resources, inadequate training, insufficient time, lack of adequate reimbursement and the adverse impact of bias, stigma, and discrimination.

Conclusions

Family physicians are often the first line of treatment in the healthcare setting. This affords early intervention opportunities to prevent and/or treat overweight and/or obesity. Patient care is enhanced when primary care clinicians recognize the risks and benefits of anti-obesity medications and bariatric procedures, as well as long-term follow-up. Practical tools regarding the 4 pillars of nutrition therapy, physical activity, behavior modification, and medical interventions (anti-obesity medications and bariatric surgery) may assist primary care clinicians improve the health and lives of patients living with obesity.

Metabolic dysfunction-associated steatotic liver disease (MASLD) in children with obesity: An Obesity Medicine Association (OMA) and expert joint perspective 2025

Introduction

This Obesity Medicine Association (OMA) Expert Joint Perspective examines steatotic liver disease (SLD), which is composed of metabolic dysfunction-associated steatotic liver disease (MASLD), and metabolic dysfunction-associated steatohepatitis (MASH) in children with obesity. The prevalence of obesity is increasing, rates have tripled since 1963 from 5 % to now 19 % of US children affected in 2018. MASLD, is the most common liver disease seen in children, can be a precursor to the development of Type 2 Diabetes (T2DM) and is the primary reason for liver transplant listing in young adults. We must be vigilant in prevention and treatment of MASLD in childhood to prevent further progression.

Methods

This joint clinical perspective is based upon scientific evidence, peer and clinical expertise. The medical literature was reviewed via PubMed search and appropriate articles were included in this review. This work was formulated from the collaboration of eight hepatologists/gastroenterologists with MASLD expertise and two physicians from the OMA.

Results

The authors who are experts in the field, determined sentinel questions often asked by clinicians regarding MASLD in children with obesity. They created a consensus and clinical guideline for clinicians on the screening, diagnosis, and treatment of MASLD associated with obesity in children.

Conclusions

Obesity and the comorbidity of MASLD is increasing in children, and this is a medical problem that needs to be addressed urgently. It is well known that children with metabolic associated chronic disease often continue to have these chronic diseases as adults, which leads to reduced life expectancy, quality of life, and increasing healthcare needs and financial burden. The authors of this paper recommend healthy weight reduction not only through lifestyle modification but through obesity pharmacotherapy and bariatric surgery. Therefore, this guidance reviews available therapies to achieve healthy weight reduction and reverse MASLD to prevent progressive liver fibrosis, and metabolic disease.

Association of Social Media Recruitment and Depression Among Racially and Ethnically Diverse Metabolic and Bariatric Surgery Candidates: Prospective Cohort Study

Background

Due to the widespread use of social media and the internet in today's connected world, obesity and depression rates are increasing concurrently on a global scale. This study investigated the complex dynamics involving social media recruitment for scientific research, race, ethnicity, and depression among metabolic and bariatric surgery (MBS) candidates.

Objective

This study aimed to determine (1) the association between social media recruitment and depression among MBS candidates and (2) racial and ethnic differences in social media recruitment engagement.

Methods

The analysis included data from 380 adult MBS candidates enrolled in a prospective cohort study from July 2019 to December 2022. Race and ethnicity, recruitment method (social media: yes or no), and depression status were evaluated using χ2 tests and logistic regression models. Age, sex, and ethnicity were adjusted in multivariable logistic regression models.

Results

The mean age of the candidates was 47.35 (SD 11.6) years, ranging from 18 to 78 years. Participants recruited through social media (n=41, 38.32%) were more likely to report past or current episodes of depression compared to nonsocial media-recruited participants (n=74, 27.11%; P=.03), with a 67% increased likelihood of depression (odds ratio [OR] 1.67, 95% CI 1.04-2.68, P=.03). Further analysis showed that participants with a history of depression who were below the mean sample age were 2.26 times more likely to be recruited via social media (adjusted OR [aOR] 2.26, 95% CI 1.03-4.95; P=.04) compared to those above the mean age. Hispanic (n=26, 38.81%) and non-Hispanic White (n=53, 35.10%) participants were significantly more likely to be recruited via social media than non-Hispanic Black (n=27, 18.37%) participants (P<.001). After adjusting for covariates, non-Hispanic Black participants were 60% less likely than non-Hispanic White participants to be recruited via social media (aOR 0.40, 95% CI 0.22-0.71; P=.002).

Conclusions

We found that individuals recruited through social media channels, especially younger participants, were more likely to report past or current episodes of depression compared to those recruited through nonsocial media. The study also showed that non-Hispanic Black individuals are less likely to engage in social media recruitment for scientific research versus other racial and ethnic groups. Future mental health-related studies should consider strategies to mitigate potential biases introduced by recruitment methods to ensure the validity and generalizability of research findings.

Gastroesophageal Reflux and Gastrointestinal Symptoms After Metabolic and Bariatric Surgery in Adolescents: An 8-year Follow-up Analysis

IMPORTANCE

Vertical sleeve gastrectomy (VSG) and Roux-en-Y gastric bypass (RYGB) are the most commonly performed metabolic and bariatric surgery (MBS) procedures in adolescents and adults. Despite their safety and effectiveness, there is concern over postoperative gastrointestinal symptoms (GIS), especially gastroesophageal reflux symptoms (GERS), in those undergoing VSG.

OBJECTIVE

To evaluate the long-term prevalence of GIS in adolescents who underwent RYGB or VSG.

DESIGN, SETTING, AND PARTICIPANTS

This is a prospective, multicenter, observational cohort study at five academic referral centers in the United States. Patients were enrolled from February 28, 2007, through December 30, 2011. The analysis included 228 adolescents: 161 RYGB and 67 VSG followed prospectively for 8 years.

MAIN OUTCOMES AND MEASURES

Patient-reported GIS before surgery and across 8 years of postoperative follow-up were assessed. We dichotomized postoperative symptom severity and analyzed the data using general linear mixed models.

RESULTS

Adolescents undergoing either VSG or RYGB demonstrated significant increases in abdominal pain (10 % vs. 17 %), bloating (8 % vs. 20 %), and constipation (3 % vs. 9 %) between baseline and 8 years (p < 0.05). Following RYGB, the prevalence of GERS was not statistically significantly different between baseline (12 %) and 8 years (13 %) (p > 0.05). Following VSG, however, GERS increased from 9 % preoperatively to 27 % at 8 years (p < 0.05). In adjusted analyses, VSG was associated with higher odds of GERS at 8 years (adjusted odds ratio 2.67 [1.57-4.55, 95%CI]).

CONCLUSIONS AND RELEVANCE

GERS represents a considerable concern pre- and post-MBS in adolescents, especially after VSG. Appropriate patient selection along with counseling and objective monitoring for pathologic consequences of gastroesophageal reflux after MBS are warranted.

TRIAL REGISTRATION

Clinicaltrials. gov Identifier: NCT00474318.

TYPE OF STUDY

Prospective, multicenter, observational cohort.

LEVEL OF EVIDENCE

Level II.

Metabolic and Bariatric Surgery Utilization in the Era of Glucagon-Like Peptide-1 Receptor Agonists among Adolescents versus Adults

This cross-sectional study analyzed adolescent metabolic and bariatric surgery (MBS) utilization before and after glucagon-like peptide-1 receptor agonist (GLP-1RA) medication approval, comparing trends across race and ethnic groups. Although both MBS and GLP-1RA are effective weight management strategies, adolescent MBS utilization increased, while adult rates declined from 2021 through 2023.

Metabolic and bariatric surgery for adolescents with severe obesity: Benefits, risks, and specific considerations

International and national guidelines recommend metabolic and bariatric surgery (MBS) as a treatment option for adolescents with severe obesity, but few countries offer MBS to adolescents in routine clinical care. This narrative review summarizes existing adolescent MBS guidelines and the available underpinning evidence. Two randomized trials and additional prospective studies have demonstrated efficacy and safety in adolescent MBS, and the health benefits appear to be similar or superior to outcomes in adults. However, there are specific challenges regarding the intervention during adolescence related to decision-making capacity and a peak in risk-taking behavior. Adolescents with severe obesity have-as a group-a mental health vulnerability, and specific nutritional concerns need to be addressed in relation to MBS. This review also describes how study findings can be translated into clinical care. We use Sweden as an example, where the National Board of Health and Welfare recommends MBS for selected adolescents with severe obesity aged 15 years or older. We present practical advice for implementing and integrating MBS in adolescents in the framework of multidisciplinary pediatric and adolescent care for obesity.

Motivators and Barriers to Seeking Metabolic and Bariatric Surgery Among Adolescents: A Qualitative Study

Background

The prevalence of severe obesity among adolescents has increased the use of metabolic and bariatric surgery (MBS) as a therapeutic option. Understanding factors influencing adolescent MBS choice and the support needed to undergo MBS is crucial for improving health outcomes. This study examines the motivations and support needs of a diverse sample of adolescents seeking MBS via the patient voice.

Methods

Adolescents (n = 14) at a weight loss surgery clinic in a large academic healthcare system participated in qualitative interviews. Of the participants, 10 were female, 6 were non-Hispanic Black, 3 were non-Hispanic White, and 5 were Hispanic. Interviews were recorded, transcribed, and thematically analyzed.

Results

Three themes emerged: Intrinsic motivators, extrinsic motivators, and barriers. Intrinsic motivators include personal physical and mental health goals. Extrinsic motivators involved family and medical team support, which provided encouragement, validation, and perceived confidence for lifestyle changes. Additionally, observing family members who previously completed MBS was a significant extrinsic motivator. Concerns included fear of dying/complications from MBS, and possible weight regain post-MBS.

Conclusion

Adolescent MBS programs should enhance intrinsic motivation for behavior changes. Findings highlight opportunities for bolstering support pre- and post-MBS and addressing MBS-related anxieties related to long-term weight management.

Bone Composition Changes and Calcium Metabolism in Obese Adolescents and Young Adults Undergoing Sleeve Gastrectomy: A Systematic Review

Background/Objectives: Sleeve gastrectomy (SG) is increasingly used to treat severe obesity in adolescents, but its effects on bone health during this critical period of bone accrual are not fully understood. This systematic review aims to evaluate the impact of SG on the bone mineral density (BMD), bone microarchitecture, marrow adipose tissue (MAT), and bone turnover markers in adolescents. Methods: A comprehensive literature search was conducted to identify studies assessing bone health outcomes in adolescents undergoing SG. Nine studies met the inclusion criteria, comprising prospective cohorts, observational cohorts, and one randomized controlled trial, with sample sizes ranging from 10 to 197 participants aged 13 to 25 years, and a total sample size of 597 individuals. Data were extracted and synthesized into tables summarizing changes in BMD, bone microarchitecture, MAT, and bone turnover markers. Results: SG in adolescents is associated with significant reductions in areal BMD at critical skeletal sites, particularly the femoral neck and total hip, with decreases ranging from -4.7% to -8.9%. Studies utilizing high-resolution peripheral quantitative computed tomography (HRpQCT) reported deteriorations in bone microarchitecture, including a decreased trabecular number, increased trabecular separation, and reduced cortical thickness. Two studies observed significant increases in MAT at the lumbar spine post-SG. Elevated bone turnover markers, particularly C-terminal cross-linking telopeptide (CTX), indicate increased bone resorption following SG. Conclusions: SG leads to negative effects on bone health in adolescents, including reductions in BMD, deterioration of the bone microarchitecture, increases in MAT, and elevated bone resorption markers. These findings highlight the need for careful monitoring of bone health and the development of strategies to mitigate bone loss in adolescents undergoing SG.

Psychosocial outcomes after adolescent metabolic and bariatric surgery: a narrative review of the literature

The prevalence of severe obesity among adolescents continues to be a significant global concern. Metabolic and bariatric surgery (MBS) has increasingly shown to produce safe, efficacious, and durable effects on weight loss and related physical health complications, and evidence of psychosocial outcomes are beginning to mature. The revised American Society for Metabolic and Bariatric Surgery pediatric guidelines published in 2018 reported emergent data regarding key psychosocial outcomes, including mental health, disordered eating, and quality of life, although data were limited by small, short-term studies and often without comparison groups. The purpose of this narrative review was to expand the relevant findings regarding youth with severe obesity who receive MBS to further clarify the impact of surgery on psychosocial outcomes.

Effects of multidisciplinary therapy on energy balance, inflammation, and metabolic diseases in adolescents with obesity: A narrative review

Obesity is a consequence of multiple factors, including genetics, lifestyle and nutritional choices, physical activity, sleep duration, screen time, and mood disorders. These behavioral elements can impair the regulation of energy balance and obesity management that link obesity to a constellation of chronic conditions that lead to a high prevalence of cardiometabolic risk factors, metabolic syndrome, and nonalcoholic fatty liver disease. Multidisciplinary therapy is defined as an approach delivered by a multidisciplinary-trained health team covering at least two components of behavior, physical activity/exercise, dietary habits, and/or psychological counseling associated with clinical interventions. This narrative review summarizes the effects of multidisciplinary therapy on neuroendocrine regulation of energy balance, inflammatory biomarkers, cardiometabolic risk factors, metabolic syndrome, nonalcoholic fatty liver diseases, behavior, and quality of life. We found that multidisciplinary therapy, including medical, nutritional, exercise, and behavioral counseling, and/or education, was useful for addressing outcomes such as visceral adiposity, neuroendocrine regulation of energy balance, inflammatory biomarkers, cardiometabolic risk factors, nonalcoholic fatty liver disease, and metabolic syndrome. The effects were mediated by improvements in neuroendocrine regulation of energy balance, downregulation of the pro-inflammatory states, and a reduction in comorbidities. Multidisciplinary therapy also improved mood disorders and quality of life.

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.

Metabolic and bariatric surgery outcomes in adolescents: a single center's seven-year update

BACKGROUND

Metabolic and bariatric surgery (MBS) is gaining traction as a treatment option for adolescents with severe obesity. Since our weight center last published results in 2014, trends have shown increasingly diverse patient populations undergoing MBS and a shift from laparoscopic Roux-en-Y gastric bypass (LRYGB) to sleeve gastrectomy (LSG). We assessed outcomes including follow-up, weight loss, comorbidity resolution, and complications among our recent adolescent and young adult MBS patients.

METHODS

This is a retrospective cohort analysis of patients under 21 years of age with severe obesity who underwent MBS at a single institution between 2014 and 2020. Data on demographics, comorbidities, body mass index (BMI), percent of total body weight loss (%TBWL) at various timepoints, and subsequent complications were collected via chart review. Regression examined associations between preoperative factors, follow-up, and %TBWL.

RESULTS

There were 79 patients of whom 73% were female; overall, 53% were White, 24% Hispanic, and 15% non-Hispanic Black. The majority (80%) of patients underwent LSG. Three-fourths of patients had follow-up data beyond 1 year, and half beyond 3 years. The median %TBWL of LSG patients was 23% at a median follow-up of 3.0 years, and LRYGB patients 28% at 2.4 years. No preoperative factors were associated with follow-up or final %TBWL, but 6-month %TBWL predicted final %TBWL. Preoperatively, 73% of patients had at least one weight-related comorbidity, and 57% had documented improvements in at least one after surgery. There were three 30-day readmissions and no mortalities.

CONCLUSIONS

This study, which is an update to a previous series from our center, reflects recent national trends with nearly half non-White patients and predominance of LSG over LRYGB. It adds to a growing body of evidence indicating that MBS is a safe and effective method of achieving weight loss and comorbidity resolution in adolescents with severe obesity.

Weight Nadir and Long-Term Weight Outcomes After Laparoscopic Sleeve Gastrectomy in a Diverse Cohort of Adolescents and Young Adults

INTRODUCTION

Laparoscopic sleeve gastrectomy (LSG) is currently the most common bariatric procedure performed in adolescents and young adults in the United States (USA), but there are limited data available on long-term postoperative weight outcomes in these patients. This single-institution US study follows longitudinal weight data in a diverse group of patients undergoing LSG at age 25 years or younger.

METHODS

We retrospectively reviewed records of all patients 25 years or younger who underwent LSG at our institution between 2013 and 2020. All weight data documented in the medical record through January 2023 was included. We calculated weight change postoperatively as percent total weight loss (%TWL) relative to preoperative weight.

RESULTS

One hundred forty-one patients underwent LSG, at a mean age of 23.1 years. Within this cohort, 56.1% identified as non-Hispanic Black or Hispanic, and 39.7% had private health insurance. The mean %TWL at weight nadir was 28.5% at a mean of 1.35 years postoperatively. The mean long-term %TWL (in patients with ≥ 4 years of follow-up) was 11.8% at a mean of 5.6 years postoperatively, with 43 of the 84 patients with long-term weight data (51%) within 10% of their preoperative weight at most recent follow-up.

CONCLUSION

Adolescents and young adults undergoing LSG at our institution had weight nadir comparable to published results during the first 1 to 2 years postoperatively, but the majority developed significant weight recurrence over the ensuing years. Our findings highlight the need for adjuvant weight loss strategies to improve the durability of weight outcomes after LSG in this population.

Presurgery health influences outcomes following vertical sleeve gastrectomy in adolescents

OBJECTIVE

Weight loss following vertical sleeve gastrectomy (VSG) in youth can range from 10% to 50%. We examined whether there are differences in demographic or metabolic parameters before VSG in youth who achieve above-average weight loss (AAWL) versus below-average weight loss (BAWL) at 1 year post VSG and if youth with BAWL still achieve metabolic health improvements at 1 year post VSG.

METHODS

Demographic, anthropometric, and clinical lab data were collected before VSG and at 1, 3, 6, and 12 months after VSG.

RESULTS

Forty-three youth with a mean age of 16.9 (SD 1.7) years before VSG were studied; 70% were female, 19% non-Hispanic Black, 58% non-Hispanic White, and 23% mixed/other race. Mean baseline BMI was 51.1 (SD 10.5) kg/m2. Average weight loss was 25.8%. The AAWL group lost 18.6 kg/m2 (35.3%) versus the BAWL group, who lost 8.8 kg/m2 (17.5%). BMI, age, race, sex, and socioeconomic status at baseline were similar between AAWL and BAWL groups; however, the BAWL group had a higher frequency of pre-VSG dysglycemia, steatotic liver disease, and dyslipidemia. At 1 year post VSG, fewer youth in the BAWL group achieved ideal health parameters, and they had less resolution of comorbidities.

CONCLUSIONS

The presence of comorbidities before VSG is associated with less weight loss and reduced resolution of metabolic conditions at 1 year post VSG.

Associations between marital status and weight loss trajectories entering into early adulthood: a Teen-LABS study

BACKGROUND

Among adolescents who underwent metabolic and bariatric surgery (MBS), it is unclear how relationships and specifically marital status (MS) may be associated with long-term weight loss.

OBJECTIVE

In this analysis, we tested for associations between the MS of adolescents who underwent MBS and the MS of their primary caregiver and weight loss trajectory over 8 years.

SETTING

Teen-LABS participating sites.

METHODS

This sample included 231 participants (75.3% female, 71.4% White, 68.0% Roux-en-Y gastric bypass, 27.7% vertical sleeve gastrectomy, 4.3% laparoscopic adjustable gastric band). A linear mixed model was conducted with the dependent variable percent body mass index (BMI) change from preoperatively through 8 years with between-participant factors (1) participant MS, (2) caregiver MS, and (3) interaction between caregiver and participant MS.

RESULTS

One third of participants and 87% of caregivers were ever married (EM). Compared with never-married (NM) participants and caregivers (-14.6%), EM participants and caregivers (-20.6%), EM participants and NM caregivers (-25.9%), and NM participants and EM caregivers (-19.8%), each had significantly greater BMI loss at 8 years (each P < .05). No other group comparisons achieved statistical significance.

CONCLUSIONS

NM participants with NM caregivers had less favorable long-term BMI. Additional research is needed to better understand how relationships affect behavior change and weight loss after MBS.

Sleeve gastrectomy for the treatment of adolescent obesity in children aged 13 and under: a retrospective study

BACKGROUND

Sleeve gastrectomy (SG) induces weight reduction and improves metabolic co-morbidities in children with severe obesity but remains underutilized, especially for young adolescents and preadolescents.

OBJECTIVE

We hypothesized there would be no differences in weight loss or co-morbidity resolution at 1 year post-SG in children who underwent SG at 13 years or younger compared to children who underwent SG at 17-18 years old.

SETTING

Academic medical center, United States.

METHODS

Medical records of children who underwent laparoscopic SG at a quaternary academic center from September 2014 to October 2022 were reviewed. A cohort of 15 patients, ≤13 years of age, was compared to a matched cohort of 15 older adolescent patients. Preoperative characteristics and postoperative outcomes were collected.

RESULTS

Both cohorts had similar baseline characteristics. Median preoperative body mass index (BMI) was 51.8 kg/m2 for the ≤13 cohort compared to 50.9 kg/m2 in the older cohort (P = .87). Time to postoperative enteral feeds and length of stay were similar between both groups, and there were no 30-day readmissions or immediate postoperative complications. Median percentage excess BMI loss at 1 year postoperation was 54% (IQR, 25.5%-94.5%) for the ≤13 cohort compared with 44% (IQR, 34.0%-51.0%) for the older cohort (P = .34). Two of 11 patients were lost to follow-up in the younger group compared to 4 of 15 in the older group (P = .61). Both groups demonstrated significant improvement in metabolic syndrome co-morbidities after SG.

CONCLUSION

SG in younger children is associated with successful postsurgical outcomes compared with adolescents, with effective weight loss and improvement of obesity-related metabolic co-morbidities.

Special considerations for the adolescent with obesity: An obesity medicine association (OMA) clinical practice statement (CPS) 2024

Background

This Obesity Medicine Association (OMA) Clinical Practice Statement (CPS) details special considerations for the management of the adolescent with obesity. The information in this CPS is based on scientific evidence, supported by medical literature, and derived from the clinical experiences of members of the OMA.

Methods

The scientific information and clinical guidance in this CPS are based on scientific evidence, supported by the medical literature, and derived from the clinical perspectives of the authors.

Results

This OMA Clinical Practice Statement addresses special considerations in the management and treatment of adolescents with overweight and obesity.

Conclusions

This OMA Clinical Practice Statement on the adolescent with obesity is an overview of current recommendations. These recommendations provide a roadmap to the improvement of the health of adolescents with obesity, especially those with metabolic, physiological, and psychological complications. This CPS also addresses treatment recommendations and is designed to help the provider with clinical decision making.

Metabolic and Bariatric Surgery in Children: Current Practices and Outcomes

PURPOSE OF REVIEW

This review will examine the most current evidence for Metabolic and Bariatric Surgery (MBS) in the pediatric population, specifically in terms of weight loss outcomes and improvement in comorbid conditions and complications. Additionally, we compare surgical and non-surgical interventions, review current guidelines, and propose a stepwise evidence-based approach to the management of obesity in children.

RECENT FINDINGS

MBS is a safe option for appropriately selected pediatric patients which leads to significant and sustained weight loss. This weight loss is associated with improvement of related comorbid conditions. Laparoscopic sleeve gastrectomy (LSG) has emerged as the procedure of choice with a better safety profile. Despite the evidence, very few adolescents undergo MBS. New pharmacologic agents specifically the GLP-1/GIP agents have shown early promise especially in patients under body mass index 40, but the long-term effects are unknown. MBS is an effective tool in the management of pediatric obesity, and its use has been recommended by professional societies. Early referral to a multidisciplinary obesity team can help identify appropriate patients.

Prevention of cardiorenal complications in people with type 2 diabetes and obesity

Traditional approaches to prevention of the complications of type 2 diabetes (T2D) and obesity have focused on reduction of blood glucose and body weight. The development of new classes of medications, together with evidence from dietary weight loss and bariatric surgery trials, provides new options for prevention of heart failure, chronic kidney disease, myocardial infarction, stroke, metabolic liver disease, cancer, T2D, and neurodegenerative disorders. Here I review evidence for use of lifestyle modification, SGLT-2 inhibitors, GLP-1 receptor agonists, selective mineralocorticoid receptor antagonists, and bariatric surgery, for prevention of cardiorenal and metabolic complications in people with T2D or obesity, highlighting the contributions of weight loss, as well as weight loss-independent mechanisms of action. Collectively, the evidence supports a tailored approach to selection of therapeutic interventions for T2D and obesity based on the likelihood of developing specific complications, rather than a stepwise approach focused exclusively on glycemic or weight control.

What matters to adolescents with obesity, and their caregivers, when considering bariatric surgery or weight loss devices? A qualitative evidence synthesis

BACKGROUND

Bariatric surgery and weight loss devices have been considered as a therapeutic option in some settings for adolescents with severe obesity. We conducted a systematic review and qualitative evidence synthesis of factors affecting adolescent and caregiver decision-making processes around such interventions, as well as post-surgery demands and challenges, so that their experiences might be better understood and improved support given. No previous qualitative evidence synthesis has been published on this topic.

METHODS AND FINDINGS

We searched 10 bibliographic databases and followed-up gray literature and citations sources. We performed a qualitative evidence synthesis on 19 primary qualitative research studies in adolescents aged 13 years or older. They reported diverse motivations and incentives for considering these interventions, including the physical and social problems resulting from living with obesity, and an awareness of the benefits and limitations of interventions. They reported that they need: information, physical and emotional support and, in some cases, financial assistance. There was high confidence in a majority of these findings (GRADE CERQual).

CONCLUSIONS

We found that supportive interventions accompanying bariatric surgery should be in place to offer: practical help; address anxieties and uncertainties; and facilitate both appropriate decision-making and the achievement of young people's desired outcomes.

Weight Loss After Laparoscopic Sleeve Gastrectomy in Children and Adolescents

PURPOSE

For children and adolescents with severe obesity, metabolic and bariatric surgery including laparoscopic sleeve gastrectomy (LSG) is increasingly used to facilitate weight loss and reduce associated medical problems. Outcomes of LSG are understudied among patients under age 15 years. We sought to examine surgical complications and weight loss outcomes among children and adolescents who underwent LSG.

MATERIALS AND METHODS

This is a single-center retrospective cohort analysis at a high-volume metropolitan children's hospital in the northeast USA between 2011 and 2021. Weight loss was assessed at routine follow-up appointments for up to 36 months postoperatively.

RESULTS

There were 12 patients under 13 years of age (< 13), 45 from 13 up to 15 years of age (13-14), and 57 patients aged 15 years or over (≥ 15). Among all patients, 70% were female, 41% were Hispanic, and 18% were non-Hispanic Black. There were no operative mortalities. Two patients had surgical complications requiring reoperation. Follow-up beyond 6 months occurred for 62% of patients. Weight loss was evident for each group at all time points, and there was no statistically significant difference among groups at any time point. BMI Z-score reduction at 6 months was 1.53 for the < 13 group, 0.89 for the 13-14 group, and 0.86 for the ≥ 15 group and at 36 months was 1.79, 1.50, and 1.16, respectively.

CONCLUSION

These results support that LSG is a safe and effective method of achieving weight loss for young adolescents with severe obesity. Strategies to promote postoperative follow-up are needed.

Long-term Outcomes Following Adolescent Metabolic and Bariatric Surgery

Severe obesity in adolescence negatively impacts upon health and wellbeing. Lifestyle modifications do not usually achieve a sufficient degree or durability of weight loss to mitigate the risk of medical complications. In recent years, metabolic and bariatric surgery (MBS), already a well-established treatment for adults with severe obesity, has emerged as an option in adolescents. Controlled studies in this age group have demonstrated substantial and sustained weight loss, improvements in associated health parameters, and a safety profile surpassing that observed in adult patients. This review aims to present published data on the results of MBS in adolescents with a focus on long-term outcomes. Indications for bariatric surgery and aspects of timing in the young person's life are also presented, along with safety considerations and factors influencing patient selection for surgery. We conclude, predominantly from short- to medium-term outcomes data, that MBS is a safe and valuable therapeutic option for adolescents with severe obesity. Considering the poor health and social wellbeing prognosis in this group, MBS appears to be underutilized. The need for continued research, multiprofessional specialist provision, coherent contemporary clinical guidelines, and routine long-term follow-up in adolescents undergoing MBS is highlighted.

Use of Metabolic and Bariatric Surgery Among US Youth

This cohort study compares trends in use of metabolic and bariatric surgery among US youth and adults before and after publication of a 2019 American Academy of Pediatrics policy statement on access to such surgery.

Long-Term Results of Bariatric Surgery in Adolescents with at Least 5 Years of Follow-up: a Systematic Review and Meta-Analysis

OBJECTS

The purpose of this study was to investigate the long-term outcomes of bariatric surgery in adolescents with obesity by including studies with a follow-up of at least 5 years.

METHODS

PubMed, EMBASE, and CENTRAL were systematically searched. Studies that met the criteria were included in the analysis.

RESULT

We identified 29 cohort studies with a total population of 4970. Preoperative age ranged from 12 to 21 years; body mass index (BMI) ranged from 38.9 to 58.5 kg/m². Females were the predominant gender (60.3%). After at least 5-year of follow-up, the pooled BMI decline was 13.09 kg/m² (95%CI 11.75-14.43), with sleeve gastrectomy (SG) was 15.27 kg/m², Roux-en-Y gastric bypass (RYGB) was 12.86 kg/m², and adjustable gastric banding (AGB) was 7.64 kg/m². The combined remission rates of type 2 diabetes mellitus (T2DM), dyslipidemia, hypertension (HTN), obstructive sleep apnea (OSA), and asthma were 90.0%, 76.6%, 80.7%, 80.8%, and 92.5%, (95%CI 83.2-95.6, 62.0-88.9, 71.5-88.8, 36.4-100, and 48.5-100), respectively. Postoperative complications were underreported. Combined with the current study, we found a low level of postoperative complications. Iron and vitamin B12 deficiencies were the main nutritional deficiency complications identified so far.

CONCLUSION

For adolescents with severe obesity, bariatric surgery (especially RYGB and SG) is the independent and effective treatment option. After at least 5 years of follow-up, bariatric surgery in adolescents showed a desirable reduction in BMI and significant remission of T2DM, dyslipidemia, and HTN. Surgical and nutrition-related complications still need to be further explored by more long-term studies.

Medication-induced weight gain and advanced therapies for the child with overweight and obesity: An Obesity Medicine Association (OMA) Clinical Practice Statement 2022

Background

This Obesity Medicine Association (OMA) Clinical Practice Statement (CPS) details medication-induced weight gain and advanced therapies for the child with overweight or obesity.

Methods

The scientific information and clinical guidance in this CPS are based on scientific evidence, supported by the medical literature, and derived from the clinical perspectives of the authors.

Results

This OMA Clinical Practice Statement addresses medication-induced weight gain and advanced therapies for the child with overweight or obesity.

Conclusions

This OMA Clinical Practice Statement on medication induced-weight gain and advanced therapies for the child with overweight or obesity is an overview of current recommendations. These recommendations provide a roadmap to the improvement of the health of children and adolescents with obesity, especially those with metabolic, physiological, and psychological complications. This CPS also addresses treatment recommendations. This section is designed to help the provider with clinical decision making.

Body fatness associations with cancer: evidence from recent epidemiological studies and future directions

This narrative review highlights current evidence linking greater body fatness to risk of various cancers, with focus on evidence from recent large cohort studies and pooled analyses of cohort studies as well as Mendelian randomization studies (which utilized genetic variants associated with body mass index to debrief the causal effect of higher body fatness on cancer risk). This review also provides insights into the biological mechanisms underpinning the associations. Data from both observational and Mendelian randomization studies support the associations of higher body mass index with increased risk of many cancers with the strongest evidence for digestive system cancers, including esophageal, stomach, colorectal, liver, gallbladder, and pancreatic cancer, as well as kidney, endometrial, and ovarian (weak association) cancer. Evidence from observational studies suggests that greater body fatness has contrasting effects on breast cancer risk depending on menopausal status and on prostate cancer risk depending on disease stage. Experimental and Mendelian randomization studies indicate that adiponectin, insulin, and sex hormone pathways play an important role in mediating the link between body fatness and cancer risk. The possible role of specific factors and pathways, such as other adipocytokines and hormones and the gut microbiome in mediating the associations between greater body fatness and cancer risk is yet uncertain and needs investigation in future studies. With rising prevalence of overweight and obesity worldwide, the proportion of cancer caused by excess body fatness is expected to increase. There is thus an urgent need to identify efficient ways at the individual and societal level to improve diet and physical activity patterns to reduce the burden of obesity and accompanying comorbidities, including cancer.