Interest, views and perceived barriers to bariatric surgery in patients with morbid obesity

Bariatric surgery stigma from the perspective of patients: A scoping review

AIMS

To explore the experiences and consequences of bariatric surgery stigma from the perspective of bariatric surgery patients and to identify knowledge gaps in the literature.

DESIGN

A scoping review.

DATA SOURCES

Studies published between December 2002 and January 2022 were identified from the following databases: PubMed, Web of Science, PsycINFO and MEDLINE.

REVIEW METHODS

We screened 3092 records and included 28 studies. Findings were grouped thematically using the health stigma discrimination framework.

RESULTS

Patients experienced several types of stigmas, including perceived, experienced, anticipated and internalized stigma, related to undergoing bariatric surgery. Patients were confronted with negative comments and judgement from others when they disclosed their decision to have surgery or when they revealed that they had undergone surgery. These experiences led to conflicts in the decision-making process, such as delaying the choice for surgery, seeking surgery abroad or opting out. Patients who internalized stigma often reported feelings of shame and embarrassment for choosing surgery and felt the need for secrecy or selective disclosure. Stigma experiences were influenced by gender and differed between different subgroups of patients.

CONCLUSION

The stigma surrounding bariatric surgery has detrimental consequences for eligible individuals and bariatric surgery patients. However, the evidence from patients' perspective remains limited. More research into patient's experiences is needed to improve patient care and further educate healthcare professionals. In addition, to better understand the nature and implications of bariatric surgery stigma, future research should be founded on stigma theories and distinguish between the different types of stigmas.

IMPACT

This scoping review contributes to a better understanding of the implications the stigma surrounding bariatric surgery has for bariatric surgery patients before and after surgery. The knowledge generated by this review can inform improvements in the education and management of people living with obesity and bariatric surgery patients.

REPORTING METHOD

The scoping review adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Extension for Scoping Reviews checklist.

PATIENT OR PUBLIC CONTRIBUTION

No Patient or Public Contribution.

PROTOCOL REGISTRATION

A protocol was not registered for this scoping review.

Success Predictors of Endoscopic Sleeve Gastroplasty

OBJECTIVE

Endoscopic sleeve gastroplasty (ESG) is a minimally invasive procedure that proved to be safe and effective in obesity treatment. However, not all subjects respond to treatment in the same way, and, with a view to personalized care, it is essential to identify predictors of success or failure.

METHODS

A retrospective 2-year followed-up cohort of ESG subjects was analyzed to investigate the presence of any baseline or early indicators of long-term optimal or suboptimal ESG outcomes.

RESULTS

A total of 315 subjects (73% women) were included, with 73% of patients exhibiting an Excess weight loss percentage (%EWL) >25% at the 24 months. Neither demographic parameters (age and sex), smoking habits, and menopause in women nor the presence of comorbidities proved potential predictive value. Interestingly, the %EWL at 1 month after ESG was the strongest predictor of 24-month therapeutic success. Subsequently, we estimated an "early threshold for success" for 1 month-%EWL by employing Youden's index method.

CONCLUSIONS

ESG is a safe and effective bariatric treatment that can be offered to a wide range of subjects. Early weight loss seems to impact long-term ESG results significantly and may allow proper early post-operative care optimization.

When insurance is not a barrier: psychological factors predicting whether bariatric candidates undergo surgery

BACKGROUND

Despite the effectiveness of bariatric surgery, utilization rates have increased only marginally over the last 2 decades; candidates who are eligible for bariatric surgery regularly fail to undergo surgery. The Minnesota Multiphasic Personality Inventory-2 Restructured Form (MMPI-2-RF) has previously been used to assist in identification of those who will not move forward with surgery after being identified as eligible. However, medical insurance has been identified as a significant barrier to surgery; research in those who have universal healthcare may yield different results.

OBJECTIVES

Determine if MMPI-RF scales are associated with failure to undergo bariatric surgery in patients eligible to have the procedure.

SETTING

Large military hospital in the Northwestern U.S.

METHODS

This study used archival data for 279 patients psychologically screened for eligibility for bariatric surgery. All assessments took place between January 2017 and December 2019. T-tests and chi-square tests were used to compare groups of patients who did and did not have surgery on relevant medical and demographic variables. Profile analyses of patient MMPI-2-RF scores were conducted to examine scale associations with undergoing surgery.

RESULTS

A total of 86 bariatric surgery candidates (30.8%) did not undergo surgery. Results showed that sex, age, employment status, and arthritis were different between groups. Additionally, MMPI-2-RF scales were different between groups, including somatic complaints, neurological complaints, cynicism, and helplessness/hopelessness.

CONCLUSIONS

MMPI-2-RF scales were associated with not having bariatric surgery, although not all scales exceeded clinical cut-offs. Findings indicate psychological and psychosocial differences, rather than psychopathology per se, may play a role in who undergoes bariatric surgery.

How to establish an endoscopic bariatric practice

Obesity is a chronic, progressive, and relapsing disease of excess adiposity that contributes to more than two hundred medical conditions and is projected to affect more than half the adult population of the United States by the year 2030. Given the limited penetrance of traditional bariatric surgery, as well as the cost and adherence barriers to anti-obesity medications, there is growing interest in the rapidly evolving field of endoscopic bariatric therapies (EBTs). EBTs are minimally invasive, same-day, per-oral endoscopic procedures and include endoscopic sleeve gastroplasty, intragastric balloons, and endoscopic bariatric revisional procedures. This field represents an exciting and innovative subspecialty within gastroenterology. However, building a successful endoscopic bariatric practice requires intentional, coordinated, and sustained efforts to overcome the numerous obstacles to entry. Common barriers include acquisition of the technical and cognitive skillset, practice limitations including the availability of nutrition counseling, facility capabilities, direct-to-consumer marketing, and financial pressures such as facility and anesthesia fees. As the highest-volume center for metabolic and bariatric endoscopy in the United States, we provide insights into successfully establishing an endoscopic bariatric program.

Evaluation of a Magnetic Compression Anastomosis for Jejunoileal Partial Diversion in Rhesus Macaques

PURPOSE

Metabolic surgery remains underutilized for treating type 2 diabetes, as less invasive alternative interventions with improved risk profiles are needed. We conducted a pilot study to evaluate the feasibility of a novel magnetic compression device to create a patent limited caliber side-to-side jejunoileal partial diversion in a nonhuman primate model.

MATERIALS AND METHODS

Using an established nonhuman primate model of diet-induced insulin resistance, a magnetic compression device was used to create a side-to-side jejunoileal anastomosis. Primary outcomes evaluated feasibility (e.g., device mating and anastomosis patency) and safety (e.g., device-related complications). Secondary outcomes evaluated the device's ability to produce metabolic changes associated with jejunoileal partial diversion (e.g., homeostatic model assessment of insulin resistance [HOMA-IR] and body weight).

RESULTS

Device mating, spontaneous detachment, and excretion occurred in all animals (n = 5). There were no device-related adverse events. Upon completion of the study, ex vivo anastomoses were widely patent with healthy mucosa and no evidence of stricture. At 6 weeks post-device placement, HOMA-IR improved to below baseline values (p < 0.05). Total weight also decreased in a linear fashion (R2 = 0.97) with total weight loss at 6 weeks post-device placement of 14.4% (p < 0.05).

CONCLUSION

The use of this novel magnetic compression device to create a limited caliber side-to-side jejunoileal anastomosis is safe and likely feasible in a nonhuman primate model. The observed glucoregulatory and metabolic effects of a partial jejunoileal bypass with this device warrant further investigation to validate the long-term glucometabolic impact of this approach.

Prevalence and Awareness of Obesity and Bariatric Surgeries in the Northern Borders Region, Saudi Arabia

Introduction Obesity is a complex health issue affecting millions worldwide, characterized by excessive body fat accumulation, often leading to various health complications. Bariatric surgeries are effective interventions for severe obesity, assisting patients in attaining substantial weight reduction and enhancing their overall well-being. This study aimed to assess obesity patterns and bariatric surgery prevalence in the Northern Borders region of Saudi Arabia to increase community knowledge and awareness about obesity and bariatric surgery. Methods This cross-sectional study included 386 residents in the Northern Borders region, Saudi Arabia. The participants completed a previously validated self-administered electronic questionnaire, and the confidentiality of the collected data was ensured. Results Nearly 58.3% of the participants (31-40 years), with a predominance of females, had a body mass index (BMI) >30, and 33.7% had undergone bariatric surgery. Most participants (92.5%) were aware that obesity is associated with significant medical issues, 98.2% appreciated that there is a surgical method to reduce weight, and 58.8% indicated that the procedure was not safe. Additionally, the majority of the respondents (57.0%) were not sure about the complications of weight-loss surgeries, and only 28.0% knew that surgeries for obesity and their complications may lead to death. Significant associations were found between age, education level, and BMI concerning the knowledge of obesity/bariatric surgery (p=0.003, 0.001, 0.002), respectively. However, gender and work status did not show such associations (p> 0.05). Conclusion Our study highlighted a lack of knowledge among the community regarding the safety, potential complications, and survival outcomes associated with obesity and bariatric surgery that could be due to ignorance and reluctance to pursue bariatric surgery to overcome morbid obesity. Significantly, the study found a relationship between age, education level, BMI, and knowledge of obesity and bariatric surgery.

Review of paediatric obesity and non-alcoholic fatty liver disease-A focus on emerging non-pharmacologic treatment strategies

Obesity in paediatrics has become one of the most serious public health concerns worldwide. Paediatric obesity leads to increased adult obesity and is associated with several comorbidities, both physical and psychological. Within gastroenterology, non-alcoholic fatty liver disease (NAFLD) is now the most common cause of paediatric liver disease and the most common cause of liver transplantation in young adults. Treatment for NAFLD largely focuses on treatment of obesity with weight loss strategies. Unfortunately, the traditional method of weight loss using multicomponent lifestyle modification (dietary changes, increased exercise and behavioural modification) has often led to disappointing results. In adult patients with obesity, treatment strategies have evolved to include bariatric surgery and, more recently, bariatric endoscopy. In paediatrics, the obesity and NAFLD epidemics will likely require this variety of treatment to address children in a personalized manner. Here, we present a review of paediatric obesity, paediatric NAFLD and the various treatment strategies to date. We focus on non-pharmacologic and emerging therapies, including bariatric surgery and bariatric endoscopy-based treatments. With such a large population of children and adolescents with obesity, further development of these treatments, including paediatric-focused clinical trials, is essential for these emerging modalities.

Marginal Ulcers Following One-Anastomosis Gastric Bypass: a Systematic Review and Meta-analysis

BACKGROUND

Marginal ulcer (MU) is an uncommon but significant complication following one-anastomosis gastric bypass (OAGB). Our study aims to understand the incidence rates, risk factors, and management of MU following OAGB.

METHODS

MEDLINE, Scopus, and Cochrane Library databases were examined to identify all studies on OAGB where authors had reported on MU. Data were collected on basic demographics, incidence rates, risk factors, and management of this condition.

RESULTS

Thirty-two studies involving 8868 patients were analysed. The mean age and body mass index (BMI) of patients in these studies were 40.9 ± 4.5 years and 47.6 ± 5.6 kg/m2, respectively. Among the patient cohort, approximately 72% were female, and 20.6% had preoperative gastroesophageal reflux disease (GERD). The authors described prescribing proton-pump inhibitors (PPI) prophylaxis to 14.1% of patients after surgery. Two hundred twenty-eight patients were reported to have MU. The incidence of MU was 2.59% (95% CI 1.89-3.52), of which 53 patients presented within 12 months, 24 patients presented after 31 months, and five patients after 6 years. One hundred forty-six patients did not have presentation time documented. Sixty-five patients were described to have MU diagnosed on endoscopy, of which 54 were symptomatic and 11 were asymptomatic. The authors were, however, not specific on the choice of investigation for the remaining 163 patients. Of patients, 89.7% were treated conservatively with PPIs, whilst 10.3% had surgery to treat MU.

CONCLUSIONS

Marginal ulcer is an uncommon complication following OAGB. The majority of patients are treated conservatively with PPIs. Larger, well-designed studies reporting on risk factors, investigation, and management of MU following OAGB are warranted.

Depression and Anxiety as Predictors of Metabolic and Bariatric Surgery Completion Among Ethnically Diverse Patients

BACKGROUND

Mental health conditions including depression and anxiety are often prevalent among metabolic and bariatric surgery (MBS) patients, but it is not known if these conditions predict the decision to complete the procedure and if this varies by race and ethnicity. This study aimed to determine if depression and anxiety are associated with MBS completion among a race/ethnically diverse sample of patients.

METHODS

This prospective cohort study included participants who were referred to an obesity program or two MBS practices between August 2019 and October 2022. Participants completed the Mini International Neuropsychiatric Interview (MINI) instrument to determine history of anxiety and/or depression, as well as MBS completion status (Y/N). Multivariable logistic regression models determined the odds of MBS completion by depression and anxiety status adjusting for age, sex, body mass index, and race/ethnicity.

RESULTS

The sample consisted of 413 study participants (87 % women, 40% non-Hispanic White, 39% non-Hispanic Black, and 18% Hispanic). Participants with a history of anxiety were less likely to complete MBS (aOR = 0.52, 95% CI = 0.30-0.90, p = 0.020). Women had increased odds of a history of anxiety (aOR = 5.65, 95% CI = 1.64-19.49, p = 0.006) and of concurrent anxiety and depression (aOR = 3.07, 95% CI = 1.39-6.79, p = 0.005) compared to men.

CONCLUSIONS

Results showed that participants with anxiety were 48% less likely to complete MBS compared to those without anxiety. Additionally, women were more likely to report a history of anxiety with and without depression versus men. These findings can inform pre-MBS programs about risk factors for non-completion.

Ultrasound Assisted Endoscopic Gastric Bypass (USA-EGB): a potential endoscopic alternative to surgical bypass, a pre-clinical proof of concept study

Background and study aims Endoscopic weight loss procedures have gained traction as minimally invasive options for the primary treatment of obesity. Thus far, we have developed endoscopic procedures that reliably address gastric restriction but result in significantly less weight loss than surgical gastrointestinal bypass. The goal of this nonsurvival study was to assess the technical feasibility of an endoscopic procedure, that incorporates both gastric restriction and potentially reversible gastrointestinal bypass. Methods Ultrasound-assisted endoscopic gastric bypass (USA-EGB) was performed in three consecutive live swine, followed by euthanasia and necropsy. Procedure steps were: 1) balloon-assisted enteroscopy that determines the length of the bypassed limb; 2) endoscopic ultrasound-guided gastroenterostomy that creates a gastrointestinal anastomosis using a lumen apposing metal stent; 3) endoscopic pyloric exclusion that disrupts transpyloric continuity resulting in complete gastrointestinal bypass; and 4) gastric restriction that reduces gastric volume. Results Complete gastrointestinal bypass and gastric restriction was achieved in all three swine. The mean total procedure time was 131 minutes (range 113-143), mean length of the bypassed limb was 92.5 cm and 180 cm, using short and long overtubes, respectively. There were no significant complications. Conclusions We successfully described USA-EGB in three consecutive live swine. Further studies are needed to access the procedures safety, efficacy, and clinical use.

Apprehensions of Morbidly Obese People Regarding Bariatric Surgery

Introduction Obesity has emerged as a major public health issue in both developed and developing countries. The prevalence of obesity is on the rise. Bariatric surgery is acknowledged as the most effective and safe solution for this problem. It has been shown to be effective in sustained weight loss and improving quality of life. The aim of this study was to identify the causes of reluctance to have surgery among patients who were potential candidates for weight loss procedures. Method Morbidly obese people who were enrolled at Khyber Teaching Hospital, Peshawar, from December 2021 to August 2022 were included in the study. It included hospitalized as well as outpatient appointments. A questionnaire was adopted as the data collection tool. Result A total of 107 patients (58 men and 49 women) were enrolled in the study. The median age was 42. Of the 107 patients, 5% (n=5) of the patients were super morbidly obese (BMI >50kg/m2). Seventy-two percent (n=77) of the population considered themselves morbidly obese. Only 22% (n=24) were physically active. Twenty percent (n=21) of the patients reported that they have or are currently trying dietary modifications for weight loss. Young females were most likely to be on dieting programs. Importantly, 56% (n=60) had never heard of bariatric surgery. Exploring the reasons for reluctance among patients revealed that the concern for surgical mortality was the major hindrance. This was followed by being not interested in committing to surgery and recovery. Concerns regarding cost and financing were also the reasons candidates didn't opt for surgical procedures to treat obesity. Conclusion The study concluded that there is a serious lack of knowledge and awareness among physicians and the general public regarding bariatric surgery. Most of the patients who were potential candidates for the procedure weren't aware that obesity had a surgical and definitive treatment. Patients who were aware of the surgical procedure were hesitant to undergo surgery for the management of their weight as they harbored misconceptions, particularly regarding the safety and efficacy of the procedure.

Patient and the Public's Perceptions of Bariatric Surgery: A Systematic Review

INTRODUCTION

Bariatric surgery is an effective therapeutic modality for obesity and related comorbidities, yet it remains significantly underutilized. Patient perceptions and expectations may influence the decisions of eligible patients in pursuing surgery.

METHODS

PubMed, SCOPUS, and OVID databases were searched in July 2022 to identify published studies discussing patient and the public's perceptions of bariatric surgery.

RESULTS

The literature shows participants often reported bariatric surgery to be a life-changing intervention known to induce weight loss, improve obesity-related comorbidities, and improve quality of life. However, a significant proportion of survey respondents perceived bariatric surgery as unsafe or risky. Patients belonging to racial minority groups cited higher concern with mortality risk, lower weight loss expectations, and different motivations to pursue bariatric surgery. Female patients were significantly more likely to have more positive perceptions of, and higher expectations of weight loss from, bariatric surgery.

CONCLUSIONS

The literature highlighted discordance between patient perceptions and the demonstrated clinical safety and efficacy profile of bariatric surgery. Overestimations of the risks, unrealistic expectations, and unfamiliarity with bariatric surgery outcomes were common findings. These perceptions of bariatric surgery may contribute to its underutilization among eligible patients. Perceptions and motivations often varied by race, region, sex, and age, which demonstrates the necessity of patient-centered education in the prereferral stage. The literature also demonstrated misconceptions of bariatric surgery among the public. Further research should explore the impact of education on the perceptions of patients and the public.

Bariatric-metabolic surgery for NHS patients with type 2 diabetes in the United Kingdom National Bariatric Surgery Registry

AIM

Bariatric-metabolic surgery is approved by the National Institute of Health and Care Excellence (NICE) for people with severe obesity and type 2 diabetes (T2DM) (including class 1 obesity after 2014). This study analysed baseline characteristics, disease severity and operations undertaken in people with obesity and T2DM undergoing bariatric-metabolic surgery in the UK National Health Service (NHS) compared to those without T2DM.

METHODS

Baseline characteristics, trends over time and operations undertaken were analysed for people undergoing primary bariatric-metabolic surgery in the NHS using the National Bariatric Surgical Registry (NBSR) for 11 years from 2009 to 2019. Clinical practice before and after the publication of the NICE guidance (2014) was examined. Multivariate logistic regression was used to determine associations with T2DM status and the procedure undertaken.

RESULTS

14,948/51,715 (28.9%) participants had T2DM, with 10,626 (71.1%) on oral hypoglycaemics, 4322 (28.9%) on insulin/other injectables, and with T2DM diagnosed 10+ years before surgery in 3876 (25.9%). Participants with T2DM, compared to those without T2DM, were associated with older age (p < 0.001), male sex (p < 0.001), poorer functional status (p < 0.001), dyslipidaemia (OR: 3.58 (CI: 3.39-3.79); p < 0.001), hypertension (OR: 2.32 (2.19-2.45); p < 0.001) and liver disease (OR: 1.73 (1.58-1.90); p < 0.001), but no difference in body mass index was noted. Fewer people receiving bariatric-metabolic surgery after 2015 had T2DM (p < 0.001), although a very small percentage increase of those with class I obesity and T2DM was noted. Gastric bypass was the commonest operation overall. T2DM status was associated with selection for gastric bypass compared to sleeve gastrectomy (p < 0.001).

CONCLUSION

NHS bariatric-metabolic surgery is used for people with T2DM much later in the disease process when it is less effective. National guidance on bariatric-metabolic surgery and data from multiple RCTs have had little impact on clinical practice.

Endoscopic revision of one-anastomosis gastric bypass (ER-OAGB) for weight recurrence: a case series of 17 adults

Weight recurrence after one-anastomosis gastric bypass (OAGB), the third most common metabolic and bariatric surgery performed worldwide, is observed in a subset of patients due to the chronic, progressive nature of obesity. Endoscopic revision of the OAGB (ER-OAGB) through full-thickness suturing to reduce the gastrojejunal anastomosis and gastric pouch is a potential alternative to surgical revision. Here, we present a case series of ER-OAGB and long-term nutritional support at two international centers with expertise in bariatric endoscopy. Data were retrospectively evaluated from a prospectively maintained database. The primary outcome was total body weight loss (TBWL) at 12 months. Secondary outcomes included TBWL at 3, 6, and 15 months; excess weight loss (EWL) at 3, 6, 12, and 15 months; frequency of new/worsening symptoms of gastroesophageal reflux disease (GERD); and the frequency of serious adverse events. In this series, 17 adults (70.6% female, mean age 46.8 years, mean BMI 39.1 kg/m2) successfully underwent ER-OAGB an average of 8 years (range 2-21 years) after OAGB for a mean weight recurrence of 43.2% (range 10.9-86.9%). TBWL from ER-OAGB was 9.7 ± 1.8% at 3 months, 13.4 ± 3.5% at 6 months, 18.5 ± 2.1% at 12 months, and 18.1 ± 2.2% at 15 months. EWL from ER-OAGB was 30.5 ± 14.7% at 3 months, 42.6 ± 16.2% at 6 months, 54.2 ± 11.3% at 12 months, and 54.2 ± 11.7% at 15 months. There were no instances of new/worsening GERD symptoms or serious adverse events. In this small series of adults who experienced weight recurrence after OAGB, ER-OAGB facilitated safe and clinically meaningful weight loss, without new or worsening GERD symptoms, when performed by experienced bariatric endoscopists in concert with longitudinal nutritional support.

Association Between Patient Satisfaction With Their Patient-Physician Relationship and Completion of Bariatric Surgery by Race and Ethnicity Among US Adults

IMPORTANCE

Metabolic and bariatric surgery (MBS) is an effective and safe treatment for obesity and its comorbidities, but less than 50% of those who are eligible and referred for MBS complete the procedure. The patient-physician relationship could be a decisive factor in the decision to complete MBS; however, this relationship has not been explored, particularly among racially and ethnically diverse populations.

OBJECTIVE

To examine the association between patient-reported satisfaction with their patient-physician relationship and MBS completion by self-reported racial and ethnic group.

DESIGN, SETTING, AND PARTICIPANTS

This prospective cohort study included 408 patients who were referred to a bariatric surgeon or obesity medicine program between July 24, 2019, and May 19, 2022.

EXPOSURE

Patient satisfaction with their physician was measured by 7 dimensions (general satisfaction, technical quality, interpersonal manner, communication, financial aspects, time spent with physician, and accessibility and convenience) using the Patient Satisfaction Questionnaire Short Form.

MAIN OUTCOMES AND MEASURES

Completion status for MBS (yes or no).

RESULTS

A total of 408 patients (mean [SD] age, 47.3 [11.6] years; among 366 with data available, 317 [86.6%] women and 49 [13.4%] men) were included in the study. Of 363 patients with data available on race and ethnicity, 66 were Hispanic/Latinx (18.2%), 136 (37.5%) were non-Hispanic Black, 146 (40.2%) were non-Hispanic White, and 15 (4.1%) were other race or ethnicity. A total of 124 patients (30.4%) completed MBS. Overall, the mean (SD) patient satisfaction score was significantly greater in MBS completers vs noncompleters (3.86 [0.56] vs 3.61 [0.64]; P < .001). Multivariable logistic regression analysis showed technical quality was the most significant factor for MBS completion (adjusted odds ratio [aOR], 1.99 [95% CI, 1.24-3.19]), followed by communication (aOR, 1.78 [95% CI, 1.16-2.72]) and accessibility and convenience (aOR, 1.61 [95% CI, 1.03-2.53]). The interaction between racial and ethnic groups and patient satisfaction was not significant (eg, mean [SD] score for Hispanic/Latinx completers, 3.95 [0.55] vs 3.77 [0.60] for non-Hispanic White completers; P = .46 for interaction).

CONCLUSIONS AND RELEVANCE

These findings suggest that there is an association between patient satisfaction with the patient-physician relationship and the decision to complete MBS regardless of race and ethnicity. These findings have important implications for strategies to improve the proportion of qualified patients who complete MBS to achieve improved health outcomes.

Questioning the legitimacy of bariatric surgery: a qualitative analysis of individuals from the community who qualify for bariatric surgery

BACKGROUND

Little is known about how individuals in the community who qualify for bariatric surgery perceive it and how this affects their likelihood to consider it for themselves. This study is the first qualitative study of a racially and ethnically diverse cohort to understand perceptions of bariatric surgery.

METHODS

We designed a descriptive study to understand attitudes about bariatric surgery. We interviewed 32 individuals who met NIH criteria for bariatric surgery but have never considered bariatric surgery. We purposively sampled to ensure the majority of participants were non-white. Using an Interpretive Description framework, an exploratory, iterative method was used to code interviews and arrive at final themes.

RESULTS

Participants self-identified as 88% female, 75% Black, 3% Hispanic, 3% Pacific Islander, and 19% white. Three major themes emerged from our data regarding legitimacy of bariatric surgery. First, participants perceived bariatric surgery to be something commercialized rather than needed treatment. They equated bariatric surgery with "botulism of the lips" or "cool sculpting." Second, an important contributor to the lack of legitimacy as a medical treatment was that many had not heard about bariatric surgery before from their doctors. Doctors were trusted sources for legitimate information about health. Lastly, conflicting information over bariatric surgery-related diet and weight loss further diminished the legitimacy of bariatric surgery. As one participant reflected about pre-operative weight loss requirements, "[If] I'm going to do that, I might as well just keep losing the weight. Why even go do the surgery?".

CONCLUSION

Though bariatric surgery is a safe, effective, and durable therapy for patients with obesity, the majority of individuals we interviewed had concerns over the legitimacy of bariatric surgery as a medical treatment. Moving forward in reaching out to communities about bariatric surgery, healthcare providers and systems should consider the presentation of information to attenuate these concerns.

Use of primary bariatric surgery among patients with obesity and diabetes. Insights from the Diabetes Collaborative Registry

Despite its cardiometabolic benefits, bariatric surgery has historically been underused in patients with obesity and diabetes, but contemporary data are lacking. Among 1,520,182 patients evaluated from 2013 to 2019 within a multicenter, longitudinal, US registry of outpatients with diabetes, we found that 462,033 (30%) met eligibility for bariatric surgery. After a median follow-up of 854 days, 6310/384,859 patients (1.6%) underwent primary bariatric surgery, with a slight increase over time (0.38% per year [2013] to 0.68% per year [2018]). Patients who underwent bariatric surgery were more likely to be female (63% vs. 56%), white (87% vs. 82%), have higher body mass indices (42.1 ± 6.9 vs. 40.6 ± 5.9 kg/m²), and depression (23% vs. 14%; p < 0.001 for all). Over a median (IQR) follow-up after surgery of 722 days (364-993), patients who underwent bariatric surgery had lost an average of 11.8 ± 18.5 kg (23% of excess body weight), 10.2% were on fewer glucose-lowering medications, and 8.4% were on fewer antihypertensives. Despite bariatric surgery being safer and more accessible over the past two decades, less than one in fifty eligible patients with diabetes receive this therapy.

Endoscopic sleeve gastroplasty for treatment of class 1 and 2 obesity (MERIT): a prospective, multicentre, randomised trial

BACKGROUND

Endoscopic sleeve gastroplasty (ESG) is an endolumenal, organ-sparing therapy for obesity, with wide global adoption. We aimed to explore the efficacy and safety of ESG with lifestyle modifications compared with lifestyle modifications alone.

METHODS

We conducted a randomised clinical trial at nine US centres, enrolling individuals aged 21-65 years with class 1 or class 2 obesity and who agreed to comply with lifelong dietary restrictions. Participants were randomly assigned (1:1·5; with stratified permuted blocks) to ESG with lifestyle modifications (ESG group) or lifestyle modifications alone (control group), with potential retightening or crossover to ESG, respectively, at 52 weeks. Lifestyle modifications included a low-calorie diet and physical activity. Participants in the primary ESG group were followed up for 104 weeks. The primary endpoint at 52 weeks was the percentage of excess weight loss (EWL), with excess weight being that over the ideal weight for a BMI of 25 kg/m². Secondary endpoints included change in metabolic comorbidities between the groups. We used multiple imputed intention-to-treat analyses with mixed-effects models. Our analyses were done on a per-protocol basis and a modified intention-to-treat basis. The safety population was defined as all participants who underwent ESG (both primary and crossover ESG) up to 52 weeks.

FINDINGS

Between Dec 20, 2017, and June 14, 2019, 209 participants were randomly assigned to ESG (n=85) or to control (n=124). At 52 weeks, the primary endpoint of mean percentage of EWL was 49·2% (SD 32·0) for the ESG group and 3·2% (18·6) for the control group (p<0·0001). Mean percentage of total bodyweight loss was 13·6% (8·0) for the ESG group and 0·8% (5·0) for the control group (p<0·0001), and 59 (77%) of 77 participants in the ESG group reached 25% or more of EWL at 52 weeks compared with 13 (12%) of 110 in the control group (p<0·0001). At 52 weeks, 41 (80%) of 51 participants in the ESG group had an improvement in one or more metabolic comorbidities, whereas six (12%) worsened, compared with the control group in which 28 (45%) of 62 participants had similar improvement, whereas 31 (50%) worsened. At 104 weeks, 41 (68%) of 60 participants in the ESG group maintained 25% or more of EWL. ESG-related serious adverse events occurred in three (2%) of 131 participants, without mortality or need for intensive care or surgery.

INTERPRETATION

ESG is a safe intervention that resulted in significant weight loss, maintained at 104 weeks, with important improvements in metabolic comorbidities. ESG should be considered as a synergistic weight loss intervention for patients with class 1 or class 2 obesity. This trial is registered with ClinicalTrials.gov, NCT03406975.

FUNDING

Apollo Endosurgery, Mayo Clinic.

Early Postoperative Weight Loss Predicts Weight Loss up to 5 Years After Roux-En-Y Gastric Bypass, Banded Roux-En-Y Gastric Bypass, and Sleeve Gastrectomy

Purpose

Previous studies showed that patients with lower weight loss after bariatric surgery could be identified based on early postoperative weight loss. However, these studies had only 12–36-month follow-up. This study aimed to explore whether patients in the lowest weight loss quartile at 3 months had lower weight loss trajectories up to 5 years after Roux-en-Y gastric bypass (RYGB), banded Roux-en-Y gastric bypass (BRYGB), and sleeve gastrectomy (SG) surgery.

Methods

Weight was assessed preoperatively, and 3, 6, 9, 12, 24, 36, 48, and 60 months postoperatively. Patients were grouped into four categories based on quartiles of percentage total weight loss (%TWL) at 3-month follow-up. Results were compared between the lowest %TWL quartile group and other quartile groups.

Results

Patients underwent either RYGB (n=13,106; 72%), SG (n=3585; 20%), or BRYGB (n=1391, 8%) surgery. Weight loss trajectories of patients in the lowest %TWL quartile group remained lower than that of other quartile groups throughout a 5-year follow-up, for all three types of surgery. Patients in the lowest %TWL quartile group had higher age at surgery, higher baseline BMI, and were more likely to be male (in the SG group), and to suffer from diabetes, hypertension, dyslipidemia, and osteoarthritis.

Conclusion

This study showed a positive association between weight loss at 3 and 12 to 60 months after bariatric surgery. Weight loss at 3 months after surgery could be used to identify patients whose anticipated weight loss trajectories are below average, to potentially improve their outcomes through early behavioral or medical interventions.

Graphical Abstract

Knowledge and Attitudes Towards Obesity and Bariatric Surgery in University Students: a National Survey

BACKGROUND

Obesity has become a noticeable public health problem, especially in the young population. Bariatric surgery is growing in China but it is still new to the general public. Knowledge and attitudes towards obesity and bariatric surgery in university students are important to national health decision-making.

OBJECTIVES

To study the knowledge and attitudes towards obesity and bariatric surgery among Chinese university students.

METHODS

A self-designed questionnaire was distributed to university students to fill in online from June to July 2021.

RESULTS

A total of 3199 questionnaires were received, with an effective rate of 98.58% (3154 questionnaires). 65.44% of whom had normal BMI and 12.14% of whom were overweight or in obesity. More than 80% of them had a high knowledge of the common causes and complications of obesity but lacked knowledge of the relationship between obesity and bone and joint, tumor or cancer, and reproductive diseases. 51.55% of them thought they needed to lose weight, especially female students (P < 0.01). Only 39% had regular physical exercise habits, 58.62% of them could reasonably control their diet, and more than 2/3 of them (67.82%) often stayed up late. Safety (29.77%) and effectiveness (29.3%) of bariatric surgery were not well accepted. Among medical students, education positively affected knowledge and attitudes towards bariatric surgery (P < 0.05). Mass media and social platforms were the main sources for obtaining obesity and weight-loss information.

CONCLUSIONS

Chinese university students have insufficient knowledge of obesity and related complications, lack of scientific management of their own weight, and poor acceptance of bariatric surgery. More education is needed on this issue.

Online survey on factors influencing patients' motivation to undergo bariatric surgery

Given the worldwide increasing prevalence of severe obesity and considering the amount of scientific evidence demonstrating the beneficial effects of bariatric surgery (BS), it is surprising that only a fraction of patients with obesity undergo BS. We therefore conducted an anonymized online survey among individuals with a history of BS to understand factors influencing the deciding process leading to BS. Respondents were recruited on a voluntary basis from obesity-related social media groups between April and June 2020. The self-designed, non-validated questionnaire consisted of 20 questions and was open to any participants with a history of BS. Of 851 participants who started the survey, 665 completed the questionnaire (completion rate of 78.1%). Five years after BS, still 70% of the survey-participants were very satisfied or satisfied with the surgical result. However, the majority (73.3%) would have undergone BS earlier. The main motivation to choose BS was related to health status or quality of life. Important characteristics for a bariatric surgeon to obtain patients' trust are "taking time and listen" (74.7%), empathy (64%) and sympathy (56%). Post-operative satisfaction with the surgical outcome was high and long-lasting in this large cohort of BS patients. However, most participants would retrospectively have undergone BS earlier. The main reason to choose BS as treatment for their obesity were impaired physical health or reduced quality of life. Nearby location to patients' residence and availability of surgeons with empathy were decisive motives for bariatric centre selection.

Individual-level barriers to bariatric surgery from patient and provider perspectives: A qualitative study

BACKGROUND

Less than 1% adults in the United States who meet body mass index criteria undergo bariatric surgery. Our objective was to identify patient and provider perceptions of individual-level barriers to undergoing bariatric surgery.

METHODS

Adults with severe obesity and obesity care providers described their experiences with the bariatric surgery care process in semi-structured interviews. Using conventional content analysis, individual-level barriers were identified within Andersen's Behavioral Model of Health Services Use.

RESULTS

Of the 73 individuals interviewed, 36 (49%) were female, and 15 (21%) were non-white. Six individual-level barriers were identified: fear of surgery, fear of lifestyle change, perception that weight had not reached its "tipping point," concerns about dietary changes, lack of social support, and patient characteristics influencing referral.

CONCLUSIONS

Patient and provider education should address patient fears of surgery and the belief that surgery is a "last resort." Bariatric surgery programs should strengthen social support networks for patients.

The Effects of the Affordable Care Act on Utilization of Bariatric Surgery

INTRODUCTION

The Affordable Care Act (ACA) expanded Medicaid (ME) and instituted Essential Health Benefits (EHB) that included bariatric surgery coverage on a state-by-state opt-in basis, increasing insurance coverage of bariatric surgery.

MATERIALS AND METHODS

Using a difference-in-differences framework, changes in bariatric surgery rates, defined as utilization in the population of people with obesity, before and after the ACA were evaluated in four states. Bariatric surgery procedure data were taken from the Healthcare Cost and Utilization Project's State In-patient Database 2012-2015. Adjusted multivariable regressions were run in the Medicaid and commercially insured populations.

RESULTS

We identified 36,456 bariatric surgeries across the 286 Health Service Areas and time periods, with 31,732 covered by commercial insurers and 4724 covered by Medicaid. An unadjusted increase in utilization rates was seen in the Medicaid and Commercial populations in both ME- and EHB-covered states as well as non-expansion and EHB opt-out states over time. In the Medicaid population, after adjusting for confounders, there was a significant increase of 24.77 cases per 100,000 people with obesity (95% confidence interval: 12.41, 37.13) in the expansion states relative to the control and pre-period. The commercial population experienced a nonsignificant change in the rates of bariatric surgery, decreasing by 2.89 cases per 100,000 people with obesity (95% confidence interval: - 21.59, 15.81).

CONCLUSIONS

There was a significant increase in bariatric surgery rates among Medicaid beneficiaries associated with Medicaid expansion, but there was no change among the commercially insured.

Endoscopic bariatric therapies for obesity: a review

▪ Obesity is reaching pandemic proportions globally, with overweight or obesity affecting at least two-thirds of Australian adults. ▪ Bariatric surgery is an effective weight loss strategy but is constrained by high resource requirements and low patient acceptance. ▪ Multiple endoscopic bariatric therapies have matured, with well established and favourable safety and efficacy profiles in multiple randomised controlled trials (RCTs), and are best used within a multidisciplinary setting as an adjuvant to lifestyle intervention. ▪ Three types of intragastric balloon are currently in use in Australia offering average total weight loss ranging from 10% to 18%, with others available internationally. ▪ Endoscopic sleeve gastroplasty produces average total weight loss of 15-20% with low rates of severe complications, with RCT data anticipated in December 2021. ▪Bariatric and metabolic endoscopy is rapidly evolving, with many novel, promising therapies currently under investigation.

Severe obesity in a specialist type 2 diabetes outpatient clinic: an Australian retrospective cohort study

BACKGROUND

Obesity is a major risk factor for the development of type 2 diabetes (T2DM) and its complications. Significant weight loss has been shown to improve glycaemia in people with T2DM and obesity. National and international guidelines recommend considering bariatric surgery for body mass index (BMI) ≥ 35 kg/m². We assessed the proportion of people with T2DM meeting criteria for surgery, how many had been offered a bariatric/obesity service referral, and compared the characteristics of people with BMI ≥ 35 kg/m² and BMI < 35 kg/m².

METHODS

Retrospective data were collected for all people with T2DM aged ≥18 years, attending a hospital specialist diabetes outpatient service over three calendar years, 2017-2019.

RESULTS

Of 700 people seen in the service, 291 (42%) had BMI ≥ 35 kg/m² (the "BMI ≥ 35 group") and met criteria for bariatric surgery, but only 54 (19%) of them were offered referral to an obesity service. The BMI ≥ 35 group was younger than those with a BMI < 35 kg/m² (56.1 ± 14.8 vs 61.4 ± 14.6 years, p < 0.001) (mean ± SD), with similar diabetes duration (11.0 ± 9.0 vs 12.3 ± 8.9 years, p = 0.078), and there was no significant difference in initial HbA1c (75 ± 27 vs 72 ± 26 mmol/mol, p = 0.118) (9.0 ± 2.5 vs 8.7 ± 2.4%) or proportion treated with insulin (62% vs 58%). There was more GLP1 agonist use in the BMI ≥ 35 group (13% vs 7%, p = 0.003) but similar rates of SGLT2 inhibitor use (25% vs 21%, p = 0.202). The BMI ≥ 35 group received more new medication and/or dose adjustments (74% vs 66%, p = 0.016). Only 29% in the BMI ≥ 35 kg group achieved HbA1c < 53 mmol/mol (7.0%).

CONCLUSIONS

In spite of frequently meeting the criteria for bariatric surgery and not achieving glycaemic targets, people with T2DM in this specialist clinic received limited medical or surgical management of their obesity. This study suggests opportunities for improvement in care of people with T2DM at several levels including increased referrals from T2DM services to weight management/bariatric services, as well as an increased use of GLP1 agonists and SGLT2 inhibitors where appropriate. Our data support the need to prioritise obesity management in the treatment of type 2 diabetes.

Weight Loss Outcomes Among Early High Responders to Exenatide Treatment: A Randomized, Placebo Controlled Study in Overweight and Obese Women

OBJECTIVE

As there is significant heterogeneity in the weight loss response to pharmacotherapy, one of the most important clinical questions in obesity medicine is how to predict an individual's response to pharmacotherapy. The present study examines patterns of weight loss among overweight and obese women who demonstrated early robust response to twice daily exenatide treatment compared to those treated with hypocaloric diet and matched placebo injections.

METHODS

We randomized 182 women (BMI 25-48 kg/m2) to treatment with exenatide alone or matched placebo injections plus hypocaloric diet. In both treatment groups, women who demonstrated ≥ 5% weight loss at 12 weeks were characterized as high responders and those who lost ≥10% of body weight were classified as super responders. Our primary outcome was long-term change in body weight among early high responders to either treatment. An exploratory metabolomic analysis was also performed.

RESULTS

We observed individual variability in weight loss with both exenatide and hypocaloric diet plus placebo injections. There was a trend toward a higher percentage of subjects who achieved ≥ 5% weight loss with exenatide compared to diet (56% of those treated with exenatide, 76% of those treated with diet, p = 0.05) but no significant difference in those who achieved ≥ 10% weight loss (23% of individuals treated with exenatide and 36% of those treated with diet, p = 0.55). In both treatment groups, higher weight loss at 3 months of treatment predicted super responder status (diet p=0.0098, exenatide p=0.0080). Both treatment groups also demonstrated similar peak weight loss during the study period. We observed lower cysteine concentrations in the exenatide responder group (0.81 vs 0.48 p < 0.0001) and a trend toward higher levels of serotonin, aminoisobutyric acid, anandamide, and sarcosine in the exenatide super responder group.

CONCLUSION

In a population of early high responders, longer term weight loss with exenatide treatment is similar to that achieved with a hypocaloric diet.

CLINICAL TRIAL REGISTRATION

www.clinicaltrialsgov, identifier NCT01590433.

Non-Surgical Interventions for Hospitalized Adults with Class II or Class III Obesity: A Scoping Review

Adult inpatients with Class II or III obesity and comorbidities have a high health burden with frequent hospitalizations. Surgical risk and patient choice can be contraindications to bariatric surgery, which is considered the gold standard treatment. The best approach to non-surgical management for this adult inpatient group is currently unknown. The aim of this scoping review was to summarize current research in the inpatient setting. The unpublished literature and six electronic database searches identified 4,582 articles, with 12 articles (reporting on 10 studies) eligible and included. The literature on the interventions and their key components in the non-surgical care of the adult inpatient with Class II or III obesity were mapped identifying service provision successes and gaps. The articles reported on intensive lifestyle interventions, comparison of oxygen administration regimes, total parenteral nutrition regimens, and pre-surgical rapid weight loss. Study designs included evaluation (n=1), before-after intervention studies (n=3), and randomized/non-randomized controlled trials (n=6). The classification of obesity as a chronic disease is not universal resulting in reduced inpatient treatment options. Recommendations for consumers, practitioner practice, health policy-makers and future research priorities are reported. Further research in the development of cost-effective inpatient models of care is indicated.

A study using semi-structured interview and Delphi survey to explore the barriers and enabling factors that influence access and utilisation of weight management services for people living with morbid obesity: A patient and professional perspective

BACKGROUND

A quarter of the United Kingdom's population are living with obesity, a disease that causes an estimated 30 000 deaths each year. This coincides with an under-utilisation of weight management services across the country with the majority of patients with morbid obesity having no record of any weight loss intervention at all. This study explores the factors that influence patient access to weight management services.

METHODOLOGY

Expert opinion was obtained using semi-structured interviews and the Delphi methodology. Participants were selected from primary and secondary healthcare settings. Healthcare professionals (HCPs) had experience working in weight management services or in services dealing with obesity-related comorbidities. Patients had experience in attending a variety weight management services.

RESULTS

Nineteen participants completed all aspects of the study. The main barriers included negative perceptions, low mood/depression, obesity not being considered as a serious disease, lack of access to services for housebound patients and disproportionate commissioning. Suggested facilitating factors to improve access included the education of all HCPs about obesity, improving HCP communication with patients, and broadening the number of HCP's that are able to refer to weight management services.

CONCLUSIONS

Future services must prioritise the education of all HCPs and the public to combat the stigma of obesity and its impact on health. National commissioning guidelines in partnership with advocates of obesity should seek to streamline referral pathways, broaden referral sources and increase the availability of specialist services. Awareness of these factors when designing future weight management services will help to improve their utilisation.

Attitudes and knowledge regarding referrals for bariatric surgery among Danish secondary healthcare providers: A national survey

Bariatric surgery induces significant and sustained weight loss and subsequently reduces obesity-related comorbidities. However, only a small percentage of patients with severe obesity undergo bariatric surgery in Denmark. There is limited knowledge about the experiences with and possible reservations to bariatric surgery among secondary healthcare providers. The aim of this cross-sectional study was to investigate referral patterns and knowledge regarding the criteria for bariatric surgery among Danish secondary healthcare providers, treating obesity-related diseases. A questionnaire regarding experiences with and reservations to referring patients for consideration for bariatric surgery, along with thoughts to specific patient cases were sent to several specialists: endocrinologists, obstetricians and gynaecologists, orthopaedic surgeons and otorhinolaryngologists. Most questions required responses on a 5-point Likert scale and frequency distributions were calculated. A total of 345 (44%) specialists responded to the questionnaires. Good knowledge of the criteria for referral to bariatric surgery varied among the specialist from 6% to 68%. One of the main issues was a concern about the medical and surgical postoperative complications, which was a barrier to and influenced referral decisions. Furthermore, specialists were more likely to refer patients to bariatric surgery when patients requested this. Except for endocrinologists, the Danish secondary healthcare specialists interviewed have limited knowledge about bariatric surgery, which results in a reluctance in referring patients. Our results indicate that there is a need to improve knowledge among specialists, regarding the indications, criteria and outcomes for bariatric surgery to establish a more pro-active, specialist led approach to referrals.

Path taken by morbidly obese people in search of bariatric surgery in the public health system

Objective:

to understand the path taken in the public health system by people with morbid obesity in the search for bariatric surgery.

Method:

qualitative research based on the social phenomenology of Alfred Schütz, with 17 hospitalized morbidly obese people, with a scheduled date for bariatric surgery. The phenomenological interview with open questions was used and the statements were analyzed in the light of the theoretical-methodological framework and literature related to the theme.

Results:

the participants were able to schedule bariatric surgery by referring friends, family and public people. The waiting list for the procedure generated anguish and anxiety due to fear of surgery, weight gain, risk of worsening health and physical limitations, but it helped prepare for its performance. The experience lived in the search for bariatric surgery led these people to want continuity of care in the Basic Health Unit, after the surgery, by professionals trained to meet their needs.

Conclusion:

the aspects inscribed in the path of people in search of bariatric surgery signal the need to strengthen the assistance-related flows of the public health system and to invest in professional training to reduce the social inequalities in access to bariatric surgery and increased quality of services.

Comparison of Comorbidity Treatment and Costs Associated With Bariatric Surgery Among Adults With Obesity in Canada

IMPORTANCE

Information on the associations between barriers to delivery of bariatric surgery and poor weight trajectory afterward is lacking. Estimates are needed to inform decisions by administrators and clinicians to improve care.

OBJECTIVE

To estimate the difference in patient-years of treatment for diabetes, hypertension, and dyslipidemia and public-payer cost between the Canadian standard and an improved bariatric surgery care pathway.

DESIGN, SETTING, AND PARTICIPANTS

Economic evaluation of a decision analytic model comparing the outcomes of the standard care in Canada with an improved bariatric care pathway with earlier sleeve gastrectomy delivery and better postsurgical weight trajectory. The model was informed by published clinical data (101 studies) and meta-analyses (11 studies) between January and May 2019. Participants were a hypothetical 100-patient cohort with demographic characteristics derived from a Canadian study.

INTERVENTIONS

Reduction of Canadian mean bariatric surgery wait time by 2.5 years following referral and improvement of patient postsurgery weight trajectory to levels observed in other countries.

MAIN OUTCOMES AND MEASURES

Modeling weight trajectory after sleeve gastrectomy and resolution rates for comorbidities in Canada in comparison with an improved care pathway to estimate differences in patient-years of comorbidity treatment over 10 years following referral and the associated costs.

RESULTS

For the 100-patient cohort (mean [SD] 88.2% [1.4%] female; mean [SD] age, 43.6 [9.2] years; mean [SD] body mass index, 49.4 [8.2]; and mean [SD] comorbidity prevalence of 50.0% [4.1%], 66.0% [3.9%], and 59.3% [4.0%] for diabetes, hypertension, and dyslipidemia, respectively) over 10 years following referral, the improved vs standard care pathway was associated with median reduction in patient-years of treatment of 324 (95% credibility interval [CrI], 249-396) for diabetes, 245 (95% CrI, 163-356) for hypertension, and 255 (95% CrI, 169-352) for dyslipidemia, corresponding to total savings of $900 000 (95% CrI, $630 000 to $1.2 million) for public payers in the base case. Relative to standard of care, the associated reduction in costs was approximately 29% (95% CrI, 20%-42%) in the improved pathway. Sensitivity analyses demonstrated independent associations of earlier surgical delivery and various levels of postsurgical weight trajectory improvements with overall savings.

CONCLUSIONS AND RELEVANCE

This study suggests that health care burden may be decreased through improvements to delivery and management of patients undergoing sleeve gastrectomy. More data are needed on long-term patient experience with bariatric surgery in Canada to inform better estimates.

Endoscopic Sleeve Gastroplasty (ESG) Is a Reproducible and Effective Endoscopic Bariatric Therapy Suitable for Widespread Clinical Adoption: a Large, International Multicenter Study

OBJECTIVE

Endoscopic sleeve gastroplasty (ESG), an incisionless endoscopic bariatric procedure, has shown impressive results in case series. This study examines the reproducibility, efficacy, and safety in three centers across two countries, and identifies key determinants for procedural success.

DESIGN

Patients who underwent ESG between February 2016 and May 2017 at one of three centers (Australia and USA) were retrospectively analyzed. All procedures were performed on an outpatient basis using the Apollo OverStitch device (Apollo Endosurgery, Austin, TX). Primary outcomes included absolute weight loss (ΔWeight, kg), change in body mass index (∆BMI, in kg/m²), total body weight loss (TBWL, %), excess weight loss (EWL, in %), and immediate and delayed adverse events.

RESULTS

In total, 112 consecutive patients (male 31%, age 45.1 ± 11.7 years, baseline BMI 37.9 ± 6.7 kg/m²) underwent ESG. At 1, 3, and 6 months, Δweight was 9.0 ± 4.6 kg (TBWL 8.4 ± 4.1%), 12.9 ± 6.4 kg (TBWL 11.9 ± 4.5%), and 16.4 ± 10.7 kg (TBWL 14.9 ± 6.1%), respectively. The proportion of patients who attained greater than 10% TBWL and 25% EWL was 62.2 and 78.0% at 3 months post-ESG and 81.0 and 86.5% at 6 months post-ESG. Weight loss was similar between the three centers. Multivariable analysis showed that male sex, greater baseline body weight, and lack of prior endoscopic bariatric therapy were predictors of greater Δweight at 6 months. Three (2.7%) severe adverse events were observed.

CONCLUSIONS

ESG is an effective, reproducible, and safe weight loss therapy that is suitable for widespread clinical adoption.

Endoscopic techniques for weight loss and treating metabolic syndrome

PURPOSE OF REVIEW

The endoscopic armamentarium against obesity and metabolic syndrome is rapidly growing and improving. Novel devices have been tested and recent data either support or reject their use. We aim to discuss current data on new endoscopic procedures addressing overweight, diabetes, and metabolic syndrome.

RECENT FINDINGS

Four-year follow-up of the aspiration therapy have shown efficacy and safety at long term. A recent consensus on intragastric balloon gathered experience from more than 40 000 procedures and standardized most steps of the treatment. The TransPyloric Shuttle has been proven effective at short term but carries high rates of adverse events. The endoscopic sleeve gastroplasty promotes similar weight loss to laparoscopic sleeve gastrectomy in mildly obese patien. The endoluminal magnetic partial jejunal diversion promoted good weight loss and a significant reduction in glycated hemoglobin (HbA1c) but most cases required laparoscopic assistance to couple the magnets. One-year follow-up demonstrated that the duodenal mucosal resurfacing carried a 1.0% reduction in HbA1c.

SUMMARY

Innovative endoscopic procedures focused on the treatment of overweight and related diseases are available and there is growing evidence supporting their use. Nonetheless, a multidisciplinary approach is mandatory. VIDEO ABSTRACT: http://links.lww.com/COG/A25.

Impact of self-efficacy on risk aversion in the context of surgical weight loss decision scenarios

Obesity is prevalent among a third of US adults and a leading indicator for many chronic diseases. Self-efficacy is important for non-surgical weight loss interventions, but there is less information about the role of self-efficacy in the candidacy phase when there are discussions of side effects and decisions for uptake. This study conducted an experiment set within an online survey assessing risk aversion towards bariatric surgery as a weight loss intervention. The survey asked about hypothetical weight loss scenarios for bariatric surgery among a national probability-based sample of US adults aged 18 years and older. Participants answered their willingness to achieve different weight loss amounts within the context of bariatric surgery in varying risk scenarios. The analysis utilized a repeated-measures linear mixed model. A three-way interaction demonstrated that participants were more willing to take risks under ideal weight loss conditions even with the risk of death, particularly when considering self-efficacy (𝛽 = 1.20, P = .05). Margin projections showed that those with lower self-efficacy were more likely to take risks overall. This trend was significant for those with a body mass index of 30 and above in scenarios presenting one's ideal weight as the outcome of bariatric surgery. Adding a measure of self-efficacy within patient assessments could identify those eligible patients who are most likely to adopt bariatric surgery, particularly among those who may have negative post-surgical outcomes due to low self-efficacy levels. Addressing self-efficacy by way of providing support resources in tandem with candidacy consultations may enhance quality of life and post-surgical outcomes.

Type 2 diabetes remission: economic evaluation of the DiRECT/Counterweight-Plus weight management programme within a primary care randomized controlled trial

AIM

The Counterweight-Plus weight management programme achieved 46% remission of Type 2 diabetes at 1 year in the DiRECT trial. We estimated the implementation costs of the Counterweight-Plus programme and its 1-year cost-effectiveness in terms of diabetes remission, compared with usual care, from the UK National Health Service (NHS) perspective.

METHODS

Within-trial total costs included programme set-up and running costs (practitioner appointment visits, low-energy formula diet sachets and training), oral anti-diabetes and anti-hypertensive medications, and healthcare contacts. Total costs were calculated for aggregated resource use for each participant and 95% confidence intervals (CI) were based on 1000 non-parametric bootstrap iterations.

RESULTS

One-year programme costs under trial conditions were estimated at £1137 per participant (95% CI £1071, £1205). The intervention led to a significant cost-saving of £120 (95% CI £78, £163) for the oral anti-diabetes drugs and £14 (95% CI £7.9, £22) for anti-hypertensive medications compared with the control. Deducting the cost-savings of all healthcare contacts from the intervention cost resulted an incremental cost of £982 (95% CI £732, £1258). Cost per 1 year of diabetes remission was £2359 (95% CI £1668, £3250).

CONCLUSIONS

Remission of Type 2 diabetes within 1-year can be achieved at a cost below the annual cost of diabetes (including complications). Providing a reasonable proportion of remissions can be maintained over time, with multiple medical gains expected, as well as immediate social benefits, there is a case for shifting resources within diabetes care budgets to offer support for people with Type 2 diabetes to attempt remission. (Clinical Trial Registry No.: ISRCTN03267836).

Motivations of Males with Severe Obesity, Who Pursue Medical Weight Management or Bariatric Surgery

Background: Both medical weight management (MWM) and bariatric surgery are significantly underutilized by patients with severe obesity, particularly males. Less than 30% of participants in MWM programs are male, and only 20% of patients undergoing bariatric surgery are men. Objectives: To identify motivations of males who pursue either MWM or bariatric surgery. Setting: Interviews with males with severe obesity (body mass index ≥35 kg/m2), who participated in a Veteran Affairs weight loss program in the Midwest. Materials and Methods: Participants were asked to describe their experiences with MWM and bariatric surgery. Interviews were audio-recorded, transcribed, and uploaded to NVivo for data management and analysis. Five coders iteratively developed a codebook using inductive content analysis to identify relevant themes. We utilized theme matrices organized by type of motivation and treatment pathway to generate higher-level analysis and generate themes. Results: Twenty-five males participated. Participants were 58.7 (standard deviation 8.6) years old on average, and 24% were non-white. Motivations for pursuing MWM or surgery included a desire to improve physical or psychological health and to enhance quality of life. Patients seeking bariatric surgery were motivated by the fear of death and felt that they had exhausted all other weight loss options. MWM patients believed they had more time to pursue other weight loss options. Conclusion: The opportunity to improve health, optimize quality of life, and lengthen lifespan motivates males with severe obesity to pursue weight loss treatments. These factors should be considered when providers educate patients about obesity treatment options and outcomes.

Endoscopic bariatric and metabolic therapies: Another tool for the management of diabetes and obesity

Endoscopic bariatric and metabolic therapies (EBMTs) have sparked significant interest as minimally invasive therapeutic options for weight loss. Although bariatric surgery remains an effective option for sustained weight loss and improvement in the metabolic syndrome, access and utilization are limited. Various EBMTs have been designed to emulate the physiologic effects of established surgical interventions, including space-occupying and non-space-occupying gastric therapies, gastric remodeling procedures, and small bowel therapies. This review discusses the safety and efficacy of available US Food and Drug Administration-approved minimally invasive endoscopic bariatric interventions, as well as those currently under investigation. In addition, the role of endoscopic revision after failed surgical intervention is discussed.

Roux-en-Y gastric bypass versus sleeve gastrectomy: what factors influence patient preference?

BACKGROUND

Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) are the most commonly performed bariatric procedures. RYGB involves altered gastrointestinal anatomy and 2 anastomoses, while SG involves gastric resection. When potential patients view images of the procedures, they may perceive RYGB to involve significant risk compared with SG, in which no significant gastrointestinal alterations are depicted.

OBJECTIVE

To evaluate preferences for RYGB versus SG.

SETTING

Survey of U.S. adults.

METHODS

An electronic survey was distributed to 1000 U.S. adults. Respondents selected either RYGB or SG based on (1) procedural pictures alone, (2) only data on risks and benefits of each procedure, (3) pictures with corresponding risk/benefit profile, and (4) pictures with mismatched information.

RESULTS

Overall, 999 individuals met inclusion criteria; 66 (7%) had undergone bariatric surgery and were excluded. Mean age and body mass index of respondents was 44.8 ± 14.6 years (n = 922) and 28.7 ± 8.0 kg/m² (n = 915). A higher proportion of patients preferred RYGB to SG when images only were provided (54% versus 46%), when information only was provided (63% versus 37%), and when correct information with the procedure image was provided (57% versus 43%). When presented with mismatched information and images, 56% preferred RYGB information + SG image versus SG information + RYGB image (44%).

CONCLUSIONS

Based on this survey, providing evidence-based risks and benefits of a procedure resulted in the majority of respondents choosing RYGB over SG. When procedure images were provided alone, preference for RYGB and SG were similar. There are likely other factors contributing to increasing SG volume aside from patient preference.

Pre-surgical, surgical and post-surgical experiences of weight loss surgery patients: a closer look at social determinants of health

Using a novel qualitative approach, Photovoice, researchers assessed social, psychological, physical and economic barriers encountered by patients of weight loss surgery. Applying the Photovoice approach and Williams' theory of narrative reconstruction for qualitative interviewing, the research team set out to investigate the bariatric patient experience from pre-surgery to hospitalization to post-surgery. Fifteen participants were given digital cameras and asked to take photographs that represented their weight loss journeys. Photographs and qualitative interviews were used to theorize the role played by comorbidities, social determinants of health, provider communication experiences and understanding of insurance coverage in patient outcomes. Several themes emerged from the interviews and photographs including themes centred around: (i) racial/ethnic standards of beauty; (ii) gender expectations; (iii) comorbidities, depression/disordered eating and obesity discrimination and (iv) financial hardship impacting adherence. Photographs also illuminated the impact of hospital and state-wide policies on patient lives. Results suggest that Photovoice may be a useful adjunct to standard-of-care to help patients identify barriers, and to identify shortcomings in health services. Additional screening tools for gender- and income-related barriers (and concomitant referrals to support services) provide an opportunity to improve patient care and reduce post-operative readmissions.

Efficacy of video-based education program in improving metabolic surgery perception among patients with obesity and diabetes

BACKGROUND

Metabolic surgery remains underutilized despite its efficacy and safety. Poor perception of surgery has been cited as one of the major reasons.

OBJECTIVES

Evaluate current patient perceptions about metabolic surgery and measure the impact a video-based education program has on changing the perceptions of patients diagnosed with obesity and type 2 diabetes.

SETTING

A university hospital in the United States.

METHODS

A prospective interventional study was performed at an endocrinology clinic. Patients were asked to complete surveys evaluating their perception of metabolic surgery before and after watching a short educational video.

RESULTS

A total of 51 patients were recruited; almost all patients (98%) attempted weight loss in the past, and approximately 90.1% voiced dissatisfaction with their current weight. The video-based education program was effective in improving the patient's perception of the efficacy and safety with regard to surgery. In addition, the proportion of patients with overall positive impression toward metabolic surgery increased from 22.5% to 53.1% (P < .01) and those willing to undergo surgical consultation increased from 41.7% to 51.0% (P < .01). Among those that remained unwilling, fear of surgery in general was the most commonly voiced reason (31.4%), with safety (27.5%) and cost of metabolic surgery (27.5%) being equally concerning.

CONCLUSIONS

Most patients with obesity and type 2 diabetes held negative impressions of metabolic surgery due to its perceived risk profile. A video-based educational intervention may improve patients' perception and increase their willingness for surgical referral. Future trials with a broader sample and longer follow-up could provide answers to its efficacy in increasing metabolic surgery accessibility.

Experience with an Enhanced Recovery After Surgery (ERAS) Program for Bariatric Surgery: Comparison of MGB and LSG in 374 Patients

BACKGROUND

Strategic multidisciplinary protocols for "enhanced recovery after surgery" (ERAS) have demonstrated reductions in length of hospital stay (LOS), morbidity, and costs in conjunction with bariatric procedures.

METHODS

We prospectively investigated the effectiveness and safety of an ERAS protocol with laparoscopic omega loop gastric bypass ("mini" gastric bypass, MGB) and LSG in morbidly obese patients.

RESULTS

Average LOS was 1.24 days (range 1-14); 86.1% discharged on day 1; 96.9% by day 2, a value comparable or better than that of other ERAS studies vs standard care according to meta-analysis. Complications 2.9%; readmission 2.1%; reintervention 1.3%.

CONCLUSION

The program was equally safe with both procedures. Postoperative antithrombotic heparin does not appear necessary in low-risk patients. Bariatric surgical ERAS programs are evolving and not yet standardized.

A Landscape of Bariatric Surgery in Canada: For the Treatment of Obesity, Type 2 Diabetes and Other Comorbidities in Adults

Obesity has escalated worldwide and in Canada. Many chronic conditions, including type 2 diabetes, are directly correlated with obesity, and although the benefits and effectiveness of bariatric surgery have been proven in terms of sustained weight loss and improving comorbidities, the procedure is underaccessed and underutilized in Canada. We explored the complex landscape of bariatric surgery in Canada, reviewing the current state and focusing on the volume of procedures nationwide and at the provincial level, the type of surgical procedures performed, their outcomes and their associated complications. Barriers and challenges curbing access to bariatric surgery are also explored. Approximately 8,583 publicly funded bariatric surgeries were performed in 9 of 10 provinces in 2015/2016; Roux-en-Y gastric bypass, sleeve gastrectomy, adjustable gastric banding and biliopancreatic diversion with or without duodenal switch are the most common procedures performed, and coverage varies among provinces and territories. Dedicated bariatric programs have been created and, in some instances, provincial networks have also emerged. Weight loss, resolution of comorbidities and rates of complications in Canada are similar to those found in the literature. The increase in the number of bariatric procedures performed over time has still not met the current demand. The rise in obesity rates, the speed and regional variations in the development and standardization of processes, adequate patient selection, funding and prioritization and gaps in knowledge and attitudes about the merits of bariatric surgery of patients, health providers and policy makers create considerable waiting times and are some of the barriers to better access to bariatric surgery.

Bariatric surgery barriers: a review using Andersen's Model of Health Services Use

Severe obesity affects nearly 20 million adults in the United States and is associated with significant morbidity and mortality. Bariatric surgery is the most effective treatment for weight loss and resolution of obesity-related co-morbidities. Of adults with severe obesity,<1% undergo bariatric surgery annually. Both contextual (health system, clinicians, and community) and individual factors contribute to the underutilization of bariatric surgery. In this review, we summarize potential barriers to undergoing bariatric surgery within the framework of Andersen's Behavioral Model of Health Services Use.

Medical devices for the treatment of obesity

Obesity is a major public health concern that leads to numerous metabolic, mechanical and psychological complications. Although lifestyle interventions are the cornerstone of obesity management, subsequent physiological neurohormonal adaptations limit weight loss, strongly favour weight regain and counteract sustained weight loss. A range of effective therapies are therefore needed to manage this chronic relapsing disease. Bariatric surgery delivers substantial, durable weight loss but limited access to care, perceived high risks and costs restrict uptake. Medical devices are uniquely positioned to bridge the gap between more conservative lifestyle intervention and weight-loss pharmacotherapy and more disruptive bariatric surgery. In this Review, we examine the range of gastrointestinal medical devices that are available in clinical practice to treat obesity, as well as those that are in advanced stages of development. We focus on the mechanisms of action as well as the efficacy and safety profiles of these devices. Many of these devices are placed endoscopically, which provides gastroenterologists with exciting opportunities for treatment.