Generic Health-Related Quality of Life May Not Be Associated with Weight Loss 4 Years After Bariatric Surgery: a Cross-Sectional Study

Bariatric surgery and mental health outcomes: an umbrella review

Aims

To evaluate the breadth, depth and effectiveness of the evidence quality of all existing studies on bariatric surgery and mental health outcomes.

Design

Umbrella review of existing Systematic review and meta-analyses.

Data sources

PubMed, Embase, Web of Science, and the Cochrane Liberally databases of Systematic review and meta-analyses, and hand searching the reference lists of eligible publications.

Results

The search identified nine studies and 20 mental health outcomes from 1251 studies. Evidence shows that bariatric surgery is associated with significant improvement in areas such as anxiety, depression and eating disorders (including binge-eating disorder), and there is a significant harmful association with suicide, self-harm and alcohol use disorder (AUD). Among them, the most studied outcome is depression (4 articles). High-quality evidence proves that the score of depressive symptoms can be significantly improved after bariatric surgery within a two-year follow-up period and is not affected by the follow-up time. Low-quality evidence shows that bariatric surgery can significantly reduce depressive symptoms regardless of age and BMI, with an odds ratio (OR) of 0.49. Regardless of the postoperative BMI, the anxiety symptoms of women over 40 still decreased significantly, with an OR of 0.58. Regardless of the type of surgery, surgery can significantly reduce the incidence of eating disorders and symptoms. However, there is no obvious change in the follow-up time of AUD in the first two years after bariatric surgery, and the risk increases obviously in the third year, with an OR of 1.825. The evidence of moderate research shows that the risk of suicide and self-harm increases after bariatric surgery. The odds ratios in the same population and the control group were 1.9 and 3.8 times, respectively.

Conclusion

Bariatric surgery is beneficial for improving most mental health-related outcomes. However, we should be cautious about the increased risk of adverse mental health after surgery, such as suicide, self-harm, and AUD.

The complexity of obesity-related health problems after bariatric surgery: The patient perspective

Background

Bariatric surgery aims to improve quality of life by means of weight loss. Obesity-related physical and psychological health problems should improve, but long-term data are scarce.

Objectives

To evaluate preoperative physical and mental health problems perceived by the patient and the association with weight loss and quality of life, 5 years after bariatric surgery.

Methods

101 persons (response rate 67%) who had had bariatric surgery an average of 4.6 years before this study completed a written survey on obesity-related physical and psychological health problems and three psychological questionnaires collecting information on eating behavior and quality of life. Over half of the participants (55%) had had a laparoscopic adjustable gastric banding.

Results

Preoperatively reported health problems improved but were not necessarily associated with weight loss. Minimal improvement in tiredness, shame and weight instability were associated with significantly less weight loss. Preoperative type 2 diabetes mellitus (T2D) improved but participants had significantly less weight loss and more dissatisfaction regarding the bariatric trajectory than participants without T2D. Eating concerns, emotional eating and external eating improved but not restrained eating. Compared to the Dutch population reference, most quality of life scores of the participants were lower.

Conclusion

In this analysis, participants did report satisfaction although from a patients' perspective, improvements of weight and health did not necessarily lead to satisfaction regarding the bariatric trajectory. Participants with postoperative reported fatigue and shame as well as participants with preoperative T2D showed significant less weight loss. More long-term research is necessary to close the current knowledge gap.

Quality of Life After Bariatric and Body Contouring Surgery in the Australian Public Health System

INTRODUCTION

The goals of bariatric surgery are weight loss, improved management of obesity-related diseases, and enhanced health-related quality of life (HRQoL). The aim of this study is to determine HRQoL among postoperative bariatric surgery patients. The aim of this study was to evaluate the utility of bariatric surgery and the role of body contouring surgery (BCS) when considering quality of life in low-volume centres in the Australian public health system.

METHODS

This cohort study compared patients who underwent bariatric surgery between 2008 and 2018, to those awaiting surgery. An additional analysis was completed for patients who also underwent BCS. Patients completed the Short Form-36 quality of life (SF-36) survey. Linear regression was used to assess the differences in mean scores between cohorts for each of the SF-36 domains.

RESULTS

A total of 131 postoperative patients were identified, with a follow up rate of 68%. The mean follow up was 5.4 y. The mean scores for all domains of the SF-36 in the postoperative group were higher than the preoperative group (P ≤ 0.0001). A significant difference in scores persisted after controlling for patients' current BMI. When considering patients who underwent BCS (n = 24), there was a further global improvement in HRQoL in physical function (P = 0.0065), role limitation to physical health (P = 0.0026), pain (P = 0.0004), energy (P = 0.0023) and general health perceptions (P = 0.0023).

CONCLUSIONS

Bariatric surgery followed by BCS may improve HRQoL for the patient when compared to bariatric surgery alone. We advocate for the use of bariatric surgery followed by BCS in low-volume centres in the Australian public health system.

Patient-Level Factors Associated with Health-Related Quality of Life and Satisfaction with Body After Bariatric Surgery: a Multicenter, Cross-Sectional Study

BACKGROUND

Health-Related Quality of Life (HRQL) is a key outcome of success after bariatric surgery. Not all patients report improved HRQL scores postoperatively, which may be due to patient-level factors. It is unknown which factors influence HRQL after surgery. Our objective was to assess patient-level factors associated with HRQL after surgery.

METHODS

This international cross-sectional study included 730 patients who had bariatric surgery. Participants completed BODY-Q scales pertaining to HRQL and satisfaction with body, and demographic characteristics were obtained. The sample was divided into three groups based on time since surgery: 0 - 1 year, 1 - 3 years and more than 3 years. Uni- and multivariable linear regression analyses were conducted to identify variables associated with the BODY-Q scales per group.

RESULTS

The 0 - 1 year postoperative group included 377 patients (50.9%), the 1 - 3 years postoperative group 218 (29.4%) and the more than 3 years postoperative group 135 patients (18.2%). Lower current body-mass index (BMI), more weight loss (%TWL), being employed, having no comorbidities, higher age and shorter time since surgery were significantly associated with improved HRQL outcomes postoperatively. None of these factors influenced all BODY-Q scales. The effect of current BMI increased with longer time since surgery.

CONCLUSION

Factors including current BMI, %TWL, employment status, presence of comorbidities, age and time since surgery were associated with HRQL postoperatively. This information may be used to optimize patient-tailored care, improve patient education and underline the importance of long-term follow-up with special attention to weight regain to ensure lasting improvement in HRQL.

Changes in quality of life 5 years after sleeve gastrectomy: a prospective cohort study

OBJECTIVES

Sleeve gastrectomy (SG) is the most frequently performed bariatric surgery procedure worldwide, but reports on long-term quality of life (QOL) outcomes are scarce. We investigated 5-year trajectories in QOL and their associations with weight loss after SG.

DESIGN

A prospective cohort study.

SETTING

The study was conducted in a single Norwegian bariatric surgery centre.

PARTICIPANTS

Out of 150 operated patients, 127 were included. Mean age was 41 years, 68% were women and the follow-up rate at 1 year was 85% and 64% at 1 and 5 years, respectively.

OUTCOME MEASURES

Data were collected preoperatively, and 1 and 5 years after surgery assessing three different levels of QOL. The main exposure was weight loss after SG, assessed as per cent excess body mass index (kg/m²) loss (%EBMIL). The Obesity-Related Problem (OP) scale was used to measure obesity-specific health-related QOL (HRQOL). Physical (PCS) and mental (MCS) composite summary scores of the Short Form 36 Health Survey were used to capture generic HRQOL and Cantril Ladder was used to assess overall QOL.

RESULTS

All HRQOL/overall QOL measures significantly improved at 1 year, followed by modest decline from 1 to 5 years after surgery. Greater %EBMIL 5 years after surgery was significantly associated with improvements in OP and PCS scores, but not with MCS and Cantril Ladder scores. Although significant (p<0.001) and clinically relevant improvements in HRQOL/overall QOL outcomes were observed at 5 years, scores were still below the general population norms.

CONCLUSION

Most patients undergoing SG experience substantial weight loss accompanied by statistically significant and clinically relevant long-term improvements in HRQOL/overall QOL. However, an important minority of patients still report low HRQOL/overall QOL 5 years after SG. Further research should aim to identify other factors that contribute to impaired QOL after bariatric surgery, even in the presence of successful weight control.

Mental health quality of life after bariatric surgery: A systematic review and meta-analysis of randomized clinical trials

Recent literature has raised concerns regarding the risk of adverse psychiatric events among bariatric surgery patients. However, the relationship between weight loss therapy and psychiatric outcomes is confounded by baseline psychosocial characteristics in observational studies. To understand the impact of bariatric surgery on the risk of adverse mental health outcomes, we conducted a systematic review and meta-analysis of randomized controlled trials that compared surgical and non-surgical treatments and assessed mental health quality of life (QoL). We evaluated the PubMed, EMBASE, Web of Science PsycINFO, Clinicaltrials.gov and Cochrane databases through 7 March 2018. Pooled standardized mean differences (SMDs) for mental health QoL scores were estimated using random effects models. Eleven randomized trials with 731 participants were included in the final analyses. Surgery was not associated with an improvement in mental health QoL from baseline as compared to non-surgical intervention (SMD: 0.02, 95% confidence interval [CI] -0.22 to 0.25). Final mental health QoL scores were similar for surgically and non-surgically treated patients (SMD: 0.37, 95% CI -0.07 to 0.81). Subgroup analyses assessing the effect of specific surgical interventions, and varying lengths of follow-up did not identify a beneficial effect of bariatric surgery on mental health QoL outcomes. These results, in conjunction with the fact that individuals who choose bariatric surgery tend to have high-risk baseline characteristics, suggest that intensive mental health follow-up following surgery should be routinely considered.