Weight Regain Following Sleeve Gastrectomy-a Systematic Review

Feasibility and preliminary efficacy of an online nutrition education intervention for those with a sleeve gastrectomy: A pilot randomised control trial

BACKGROUND

A sleeve gastrectomy (SG) is a lifelong treatment that improves health and better outcomes are associated with follow-up. However, there is lack of access or high attrition to aftercare. This potentially contributes to sub-optimal dietary intake and a lack of evidence for nutrition interventions. The present study assessed the feasibility and preliminary efficacy of a nutrition intervention to improve diet quality in Australian adults living with a SG.

METHODS

Adults (n = 96) post-SG were recruited into a cross-sectional diet quality study, with 68 eligible for randomisation to an intervention or wait-list control group. Over 10 weeks, a Facebook group was used to post daily nutrition education. Feasibility outcomes included participant recruitment, engagement, retention and acceptability. Preliminary efficacy was assessed using change in Australian Recommended Food Score (ARFS). Linear mixed models were used to measure differences in mean outcome between the experimental groups over time.

RESULTS

Sixty-eight participants (97% female) aged 48.2 ± 9.8 years, body mass index 33.1 ± 5.8 kg/m2, and mean ± SD ARFS 39 ± 9 points were randomised to the intervention, with 66% retention at 10 weeks. At follow-up, diet quality increased for the intervention group (mean ARFS, 95% confidence interval = 0.2 [-1.5 to 1.9]) and decreased for the control group (mean ARFS, 95% confidence interval= -2.0 [-5.2 to 1.2]) with no between group difference (p = 0.2). Participants (n = 30) rated the intervention positively.

CONCLUSIONS

Recruiting and retaining adults post-SG into a nutrition intervention is feasible. Low-cost recruitment attracted strong interest from women to identify greater support to know what to eat following SG. A future fully powered trial to assess intervention efficacy is warranted.

Patients' perspectives on weight recurrence after bariatric surgery: a single-center survey

BACKGROUND

Weight recurrence (WR) affects nearly 20% of patients after bariatric surgery and may decrease its benefits, affecting patients' quality of life negatively. Patient perspectives on WR are not well known.

OBJECTIVES

Assess patient needs, goals, and preferences regarding WR treatment.

SETTING

Single MBSAQIP-accredited academic center, and online recruitment.

METHODS

An 18-item, web-based survey was distributed to adults seeking treatment for WR after a primary bariatric surgery (PBS), in addition to online recruitment, between 2021 and 2023. Survey items included somatometric data, questions about the importance of factors for successful weight loss, procedure decision-making, and treatment expectations.

RESULTS

Fifty-six patients with > 10% increase from their nadir weight were included in the study. Patients had initially undergone Roux-en-Y gastric bypass (62.5%), sleeve gastrectomy (28.6%), adjustable gastric banding (3.6%), or other procedures (5.3%). When assessing their satisfaction with PBS, 57.1% were somewhat/extremely satisfied, 33.9% somewhat/extremely dissatisfied, while 8.9% were ambivalent. Patients considered the expected benefits (for example, weight loss) as the most important factor when choosing a treatment option for WR. Patient goals included "feeling good about myself" (96.4% very/extremely important), "being able to resume activities I could not do before" (91% very/extremely important), and "improved quality of life" and "-life expectancy" (> 90% very/extremely important). Finally, RBS, lifestyle modification with peer support, and anti-obesity medication were ranked as first treatment options for WR by 40%, 38.8%, and 29.8% of the respondents, respectively.

CONCLUSIONS

Patients considered weight loss as the most important factor when choosing treatment modality for WR, with RBS and lifestyle changes being preferred over weight-loss medications. Large prospective randomized trials are needed to counsel this patient population better.

Understanding the Bariatric Patient Perspective in the National Patient-Centered Clinical Research Network (PCORnet) Bariatric Study

BACKGROUND

In 2016, the Patient-Centered Outcomes Research Institute funded the National Patient Centered Clinical Research Network (PCORnet) Bariatric Study (PBS). Understanding the experience of postoperative patients was a key component of this study.

METHODS

Nine focus groups were conducted in Southern California, Louisiana, Pennsylvania, and Ohio and in a national advocacy conference for patients with obesity. Participants were identified and recruited in both clinical and community settings. Focus group transcripts were analyzed using an iterative inductive-deductive approach to identify global overarching themes.

RESULTS

There were 76 focus group participants. Participants were mostly women (81.4%), had primarily undergone gastric sleeve (47.0%), were non-Hispanic white (51.4%), had some college education (44.3%), and made $100,000 annual income or less (65.7%). Qualitative findings included negative reactions patients received from friends, family, and co-workers once they disclosed that they had bariatric surgery to lose weight; and barriers to follow-up care included insurance coverage, emotional and situational challenges, and physical pain limiting mobility.

CONCLUSIONS

These findings confirm the other qualitative findings in this area. The approach to bariatric surgery should be expanded to provide long-term comprehensive care that includes in-depth postoperative lifetime monitoring of emotional and physical health.

Weight Loss and Eating Pattern 7 Years After Sleeve Gastrectomy: Experience of a Bariatric Center of Excellence

PURPOSE

Report the analysis from a single center series of consecutive primary sleeve gastrectomy (SG) on the factors affecting weight loss at long term.

MATERIALS AND METHODS

Patients submitted to primary SG with a follow-up of 7 years were screened. Weight loss was evaluated with %excess weight loss (%EWL) and %excess BMI loss (%BMIL). Weight regain (WR) was defined as in increase of 25% of the obtained %EWL and insufficient weight loss (IWL) as loss < 50% EWL. Eating behaviors were evaluated with 7 days record (7dR). All the variables potentially affecting the weight loss were cross-matched for correlation. The study population was divided in three groups: group A (WR), group B (IWL), and group C (sustained weight loss) for comparative analysis.

RESULTS

A total of 86 patients (21 M/65 F) with a preoperative BMI of 47.08 ± 6.15 kg/m² were evaluated. Cumulative 7 years weight loss was as follows: 61.66 ± 22.69% EWL and 32 ± 9% EBMIL. A total of 4.6% had an IWL while 27.9% a WR. The analysis showed a significant difference among the daily calories and fats consuming, number of meals, physical activity, grazing/sweet eating habits, and adherence to follow-up (p < 0.05) between groups A and C. Cox hazard demonstrated a significant risk (p < 0.05) to WR in case of adherence to follow-up shorter than 48 months, high daily calories, and fats intake (hazard ratio (HR) range 5-9). Eight patients (9.3%) had a surgical revision.

CONCLUSION

Our data demonstrated that long-term results (7 years) of SG are strongly related to eating habits and patient's behaviors.

Revisional Surgeries of Laparoscopic Sleeve Gastrectomy

Bariatric surgery has become increasingly common due to the worldwide obesity epidemic. A shift from open to laparoscopic surgery, specifically, laparoscopic sleeve gastrectomy (LSG), has occurred in the last two decades because of the low morbidity and mortality rates of LSG. Although LSG is a promising treatment option for patients with morbid obesity due to restrictive and endocrine mechanisms, it requires modifications for a subset of patients because of weight regain and tough complications, such as gastroesophageal reflux, strictures, gastric leak, and persistent metabolic syndrome., Revision surgeries have become more and more indispensable in bariatric surgery, accounting for 7.4% in 2016. Mainstream revisional bariatric surgeries after LSG include Roux-en-Y gastric bypass, repeated sleeve gastrectomy, biliopancreatic diversion, duodenal switch, duodenal-jejunal bypass, one-anastomosis gastric bypass, single anastomosis duodeno-ileal bypass (SAID) and transit bipartition. This review mainly describes the revisional surgeries of LSG, including the indication, choice of surgical method, and subsequent effect.

Approach to the Patient: Management of the Post-Bariatric Surgery Patient With Weight Regain

CONTEXT

Weight regain (WR) after bariatric surgery is emerging as a common clinical problem due to the increase in the number of procedures performed. Early interventions are necessary to curtail the potential recurrence of comorbid conditions. However, it is often difficult to recognize WR early enough to introduce mitigating measures because there are no current guidelines for timely diagnosis and assessment of the severity of this condition.

OBJECTIVE

We present a practical approach for the early recognition of WR, based on 11-year follow-up data from our multiethnic bariatric surgery patient population.

METHODS

We classify WR according to the rate of increase in weight relative to nadir weight, normalized per 30-day interval. We also review pertinent literature about the etiologic factors contributing to WR after bariatric surgery.

RESULTS

According to our algorithm, mild, moderate, and rapid WR are defined as weight increases of 0.2% to <0.5%, 0.5% to 1.0%, and more than 1.0% of nadir weight per 30 days, respectively. Treatment options, including dietary counseling, use of antiobesity medication, and consideration of surgical revision, are described. A case is presented to illustrate the utility of timely identification of WR and the importance of collaboration between bariatric surgeons, obesity medicine specialists, and dietitians.

CONCLUSION

Our approach emphasizes the importance of regular long-term follow-up for all bariatric surgery patients.

Ethnic Disparities in Access to Publicly Funded Bariatric Surgery in South Auckland, New Zealand

BACKGROUND

In New Zealand (NZ), Indigenous Māori and Pacific peoples experience a higher burden of obesity and obesity-related disease. Counties Manukau Health (CMH) provides the largest public bariatric service in NZ housing a higher proportion (64%) of non-European groups (Asian, Pacific and Māori). This study investigated whether ethnic disparities in the receipt of bariatric surgery exist within one of the most ethnically diverse populations in NZ.

METHODS

All patients accepted on to the CMH bariatric programme between 1 January 2011 and 31 December 2017 were identified through hospitalisation records. Logistic regression modelling with multivariate adjustment was utilised to assess the likelihood (odds ratio) of receipt of bariatric surgery by ethnicity.

RESULTS

A total of 2519 referrals were received, of which 1051 proceeded to surgery. The proportion of patients referred who eventually underwent bariatric surgery was significantly higher for Other Europeans (68%) and NZ Europeans (63%) compared to Asian (42%), Māori (41%) and Pacific peoples (28%, p < 0.05). The likelihood of receipt of bariatric surgery was significantly lower for Māori (odds ratio [OR], 0.53; 95% confidence interval [CI], 0.42-0.68) and Pacific (OR, 0.3; 95%CI, 0.23-0.40). These disparities were not explained by differences in socio-demographics, comorbidity or attrition.

CONCLUSIONS

Ethnic disparities in the receipt of publicly funded bariatric surgery exist where NZ European and Other European patients are more likely to gain access to publicly funded bariatric surgery. These findings challenge current selection criteria and prompt discussion around whether equity targets based on ethnicity need to be established.

Enhancing responsiveness to Māori in a publicly funded bariatric service in Aotearoa New Zealand

BACKGROUND

Health equity is a fundamental right afforded to all regardless of ethnicity. However, in New Zealand (NZ), health inequities are most compelling for Indigenous Māori who experience inadequate access to services, poorer quality of care and poor health outcomes as a result. Bariatric surgery is the most effective intervention for weight loss and remission of obesity-related disease where all other interventions have been exhausted. This Kaupapa Māori qualitative study presents Māori perspectives of bariatric surgery from the largest public bariatric centre in NZ and offers solutions for enhancing bariatric service responsiveness to Māori.

METHODS

This qualitative study was informed by Kaupapa Māori methodology and involved a general inductive thematic analysis of 31 semi-structured interviews with Māori patients who had bariatric surgery at Counties Manukau Health in South Auckland, NZ.

RESULTS

Four key themes were identified following analysis: (i) Kaupapa Māori standards of health; (ii) bariatric mentors; (iii) bariatric psychologists; and (iv) community-integrated support. These themes offer four tangible solutions for optimizing bariatric pathways for Māori from the perspectives of Māori bariatric patients.

CONCLUSION

Kaupapa Māori, community-centred and greater non-surgeon aspects of bariatric supportive mechanisms comprise key areas of opportunity for public bariatric pathways in NZ. Surgical leadership is required to advance health equity and service responsiveness to Māori.

Patients' experiences of life after bariatric surgery and follow-up care: a qualitative study

OBJECTIVES

Bariatric surgery is the most clinically effective treatment for people with severe and complex obesity, however, the psychosocial outcomes are less clear. Follow-up care after bariatric surgery is known to be important, but limited guidance exists on what this should entail, particularly related to psychological and social well-being. Patients' perspectives are valuable to inform the design of follow-up care. This study investigated patients' experiences of life after bariatric surgery including important aspects of follow-up care, in the long term.

DESIGN

A qualitative study using semistructured individual interviews. A constant comparative approach was used to code data and identify themes and overarching concepts.

SETTING

Bariatric surgery units of two publicly funded hospitals in the South of England.

PARTICIPANTS

Seventeen adults (10 women) who underwent a primary operation for obesity (mean time since surgery 3.11 years, range 4 months to 9 years), including Roux-en-Y gastric bypass, adjustable gastric band and sleeve gastrectomy, agreed to participate in the interviews.

RESULTS

Experiences of adapting to life following surgery were characterised by the concepts of 'normality' and 'ambivalence', while experiences of 'abandonment' and 'isolation' dominated participants' experiences of follow-up care. Patients highlighted the need for more flexible, longer-term follow-up care that addresses social and psychological difficulties postsurgery and integrates peer support.

CONCLUSIONS

This research highlights unmet patient need for more accessible and holistic follow-up care that addresses the long-term multidimensional impact of bariatric surgery. Future research should investigate effective and acceptable follow-up care packages for patients undergoing bariatric surgery.

Four main barriers to weight loss maintenance? A quantitative analysis of difficulties experienced by obese patients after successful weight reduction

BACKGROUND

Weight maintenance remains to be a challenge for patients in a reduced obese state and it has been recommended to provide them more individualized support. For this purpose it is crucial to understand the barriers patients are experiencing after weight loss. Many have been identified by qualitative studies. We evaluated if a quantitative assessment of patient perspective during weight maintenance can help identify major barriers that refer to actual regain.

METHODS

Follow-up data were analyzed from patients attempting weight maintenances after successful completion of a nonsurgical weight loss and lifestyle intervention for morbid obesity. The data were acquired at mandatory follow-up assessments and included rating of 26 probable difficulties. A principal component analysis was carried out to explore whether these difficulties could be grouped into meaningful factors. Associations with socio-demographics, follow-up time, and weight changes were evaluated.

RESULTS

Data from 88 out of 102 patients were available (baseline BMI 49.5 ± 7.4 kg/m²; 12-month weight loss 24.3 ± 9.6%; follow-up time 1.48 ± 0.6 years). Four solid factors, composed of 21 items and explaining 56% of the variance were extracted and interpreted as 'Hedonic Hunger', 'Mental Distress', 'Binge Eating', and 'Demoralization'. Weight regain (12.4 ± 12%) was correlated with each factor, most closely with 'Mental Distress' (r = 0.38). When controlling for age and follow-up time, 'Binge Eating' was the most important predictor (adj. R² = 0.297).

CONCLUSIONS

A quantitative assessment of patient perspective during the first years after weight loss can help identify valid barriers to weight loss maintenance.

Exploring motivation for bariatric surgery among Indigenous Māori women

INTRODUCTION

Bariatric surgery is the most effective intervention for alleviating obesity and its complications. Indigenous people worldwide experience higher rates of obesity and obesity disease burden. However, few studies exploring bariatric surgery among Indigenous peoples are published. In this study we aimed to explore the motivation of Māori women in coming forward for bariatric surgery.

METHODS

Māori women who had bariatric surgery prior to December 31, 2014, were invited to participate in semi-structured interpersonal interviews. Kaupapa Māori research, an Indigenous Māori research methodology, informed this study. Interviews were recorded, transcribed and subject to inductive thematic analysis.

RESULTS

Twenty-nine Māori women participated in semi-structured interpersonal interviews. The majority of women reported that the presence of obesity-related disease alongside the desire for a better quality of life served as the greatest sources of motivation for having bariatric surgery. Whānau (family) were key for participants achieving the preoperative milestones needed to be accepted for bariatric surgery. Interpersonal experiences of fat-shaming and yo-yo dieting also impacted their choice to have surgery.

CONCLUSION

This study is one of the first to describe the motivations of Indigenous Māori women to have bariatric surgery. Our study conveys the importance of health, a desire to have a better quality of life and whānau in motivating Māori women to come forward for bariatric surgery.

A Randomised Trial of Text Message Support for Reducing Weight Regain Following Sleeve Gastrectomy

INTRODUCTION

Sleeve gastrectomy (SG) is a common bariatric procedure with high rates of weight regain (WR). Clinicians and patients have identified a lack of follow-up support and maladaptive lifestyle behaviours as potential causes for WR. While text message support has been shown to be effective for weight loss in non-surgical patients, it has not been investigated for reducing WR in bariatric patients.

PURPOSE

To determine the effectiveness of text message support in reducing weight regain following sleeve gastrectomy.

METHODS

A text message intervention was designed. The effectiveness of the intervention was investigated by a randomised trial powered to detect a 15% difference in the primary outcome of percent excess weight loss (84 participants required). Secondary outcomes were the Bariatric Analysis and Reporting System (BAROS) score and patient satisfaction. Outcomes were assessed at 6 and 12 months.

RESULTS

Ninety-five participants were randomised to either standard care or text message support (daily text message for 1 year). While there was no significant difference in the primary outcome at 6 or 12 months, patients who received the intervention tended to have less WR and a significantly better BAROS score at 12 months. Participants who received text message support found it beneficial, would have liked the messages to continue, and felt WR was reduced by having the text message support.

CONCLUSION

Text message support following SG is feasible, may reduce weight regain, improves the BAROS score and is valued by patients.

TRIAL REGISTRATION

NCT02341001.

Predictors of weight regain after sleeve gastrectomy: an integrative review

BACKGROUND

Sleeve gastrectomy (SG) is one of the most effective treatments for severe obesity, but weight regain after surgery is a challenging issue. The mechanism of postoperative weight relapse is barely understood because of the lack of long-term data.

OBJECTIVES

To review and synthesize current evidence related to factors that contribute to weight regain after SG.

METHODS

Whittemore and Knafl's integrative method guided the research. The databases PubMed, EMBASE, and CINAHL, as well as 2 selected journals, were searched through October 2018 to gather English-language journal articles on the potential predictors of post-SG weight regain among adult populations. Only articles with sample size ≥10 were included. A narrative synthesis was used to analyze the 17 studies included in the review.

RESULTS

In recent years there has been an upward trend in the published reports of SG on longer-term outcomes. After a review of 6863 records, 17 eligible studies were identified, reporting various definitions of weight regain and 3 main categories of predictors: surgical/anatomic factors, hormonal/metabolic imbalance, and behavioral/mood factors. The 17 studies used quantitative (n = 16) and qualitative methods (n = 1).

CONCLUSION

There is a dearth of available literature addressing predictors of weight regain after SG, and the inconsistency in the definition of regain limited the comparability between studies. Besides the surgical/anatomic factors that have been reported as significant predictors, other modifiable factors such as behavioral and psychosocial determinants need to be further investigated.

'The rollercoaster of follow-up care' after bariatric surgery: a rapid review and qualitative synthesis

Benefits of bariatric surgery for obesity related comorbidities are well established. However, in the longer term, patients can become vulnerable to procedure specific problems, experience weight regain and continue to need monitoring and management of comorbidities. Effective longer term follow-up is vital due to these complex needs post-surgery. Current guidance recommends annual long-term follow-up after bariatric surgery. However, attendance can be low, and failure to attend is associated with poorer outcomes. Understanding patients' experiences and needs is central to the delivery of effective care. This rapid review has synthesized the current qualitative literature on patient experiences of healthcare professional (HCP) led follow-up from 12 months after bariatric surgery. A recurring theme was the need for more and extended follow-up care, particularly psychological support. Enablers to attending follow-up care were patient self-efficacy as well as HCP factors such as a non-judgemental attitude, knowledge and continuity of care. Barriers included unrealistic patient expectations and perceived lack of HCP expertise. Some preferences were expressed including patient initiated access to HCPs and more information preoperatively to prepare for potential post-surgery issues. Insights gained from this work will help identify areas for improvement to care in order to optimize longer term outcomes.

Bariatric surgery and long-term nutritional issues

Bariatric surgery is recognized as a highly effective therapy for obesity since it accomplishes sustained weight loss, reduction of obesity-related comorbidities and mortality, and improvement of quality of life. Overall, bariatric surgery is associated with a 42% reduction of the cardiovascular risk and 30% reduction of all-cause mortality. This review focuses on some nutritional consequences that can occur in bariatric patients that could potentially hinder the clinical benefits of this therapeutic option. All bariatric procedures, to variable degrees, alter the anatomy and physiology of the gastrointestinal tract; this alteration makes these patients more susceptible to developing nutritional complications, namely, deficiencies of macro- and micro-nutrients, which could lead to disabling diseases such as anemia, osteoporosis, protein malnutrition. Of note is the evidence that most obese patients present a number of nutritional deficits already prior to surgery, the most important being vitamin D and iron deficiencies. This finding prompts the need for a complete nutritional assessment and, eventually, an adequate correction of pre-existing deficits before surgery. Another critical issue that follows bariatric surgery is post-operative weight regain, which is commonly associated with the relapse of obesity-related co-morbidities. Nu-tritional complications associated with bariatric surgery can be prevented by life-long nutritional monitoring with the administration of multi-vitamins and mineral supplements according to the patient's needs.