Impact of weight loss on the cardiovascular system after bariatric surgery

Introduction. Obesity is a chronic disease with a great impact on the cardiovascular system through its association with type II diabetes, hypertension, dyslipidemia, metabolic syndrome (MetS) and also through direct alterations in cardiac performance and morphology. Recent long term studies prove that substantial weight loss obtained via bariatric surgery is capable of improving cardiac risk factors associated with severe obesity, decreasing the mortality rates.Aim: to assess the long-term changes in cardiovascular risk and cardiac structure in obese patients who had lost weight after laparoscopic sleeve gastrectomy (LSG).Methods. Fifty-two severe obese patients (44±9 years, 57.7% women, BMI=45±8 kg/m2) underwent clinical and biochemical examination and Doppler echocardiograms before and 5 years after LSG.Results. Pre-operatively, 78.4% of patients were hypertensive, 46.2% had diabetes, 73.1% MetS and 44.2% presented left ventricle hypertrophy (LVH), reflecting high cardio-metabolic risk. The patients reassessment was made 61.7±10.5 months after LSG, when a decrease in BMI of 21.9±10% was achieved (p<0.001). The prevalence of hypertension (64.7%), diabetes (32.7%) and MetS (28.8%) decreased compared to the pre-operative examination (p=0.019, p<0.001, p=0.036). An increase in left ventricle mass and left ventricle mass index (LVMI) (p<0.001) and in the prevalence of LVH (57.7%-p=0.001) was recorded. Patients were divided into two groups based on the decrease in LVMI (positive response-38.5%) or increase in LVMI post-surgery (negative response-61.5%), compared with pre-operative values. The group of patients with negative response had lost less weight (p=0.006), had a poor glycemic control (p=0.022), and higher systolic (p=0.004) and diastolic (p=0.030) pressure values compared to the first evaluation.Conclusion. The increase of LVMI after LSG indicates that this study should continue, including a larger number of patients. It is important to identify the factors that can predict an inappropriate response to surgery, in order to prevent and treat them.

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Endoscopic Evaluation of Symptomatic Patients following Bariatric Surgery: A Literature Review

Diagnostic and Therapeutic Endoscopy ◽

10.1155/2012/753472 ◽

2012 ◽

Vol 2012 ◽

pp. 1-8 ◽

Cited By ~ 5

Author(s):

Miral Subhani ◽

Kaleem Rizvon ◽

Paul Mustacchia

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Abdominal Pain ◽

Drug Therapy ◽

Upper Gastrointestinal Bleeding ◽

Comorbid Conditions ◽

Endoscopic Evaluation ◽

Number Of Patients ◽

Upper Gastrointestinal

Obesity is an epidemic in our society, and rates continue to rise, along with comorbid conditions associated with obesity. Unfortunately, obesity remains refractory to behavioral and drug therapy but has shown response to bariatric surgery. Not only can long-term weight loss be achieved, but a majority of patients have also shown improvement of the comorbid conditions associated with obesity. A rise in the use of surgical therapy for management of obesity presents a challenge with an increased number of patients with problems after bariatric surgery. It is important to be familiar with symptoms following bariatric surgery, such as nausea/vomiting, abdominal pain, dysphagia, and upper gastrointestinal bleeding and to utilize appropriate available tests for upper gastrointestinal tract pathology in the postoperative period.

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Evaluation of the Effects of Bariatric Surgery in Terms of Weight Loss and Diabetes Remission in the Indian Population

Dubai Diabetes and Endocrinology Journal ◽

10.1159/000518856 ◽

2021 ◽

pp. 1-7

Author(s):

Manish Khaitan ◽

Riddhish Gadani ◽

Koshish Nandan Pokharel

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Gastric Bypass ◽

Complete Remission ◽

Predictive Factors ◽

Indian Population ◽

Diabetes Remission ◽

Obese Patients ◽

Sustained Weight Loss

Objectives: The growing prevalence of obesity rates worldwide is associated with an upsurge in its comorbidities, particularly type 2 diabetes mellitus (T2DM). Bariatric surgery is a proven treatment modality for producing sustained weight loss and resolution of associated T2DM providing marked improvement in quality of life with rapid recovery. This study aims to investigate the effects of laparoscopic sleeve gastrectomy (LSG), Roux-en-Y gastric bypass (RYGB), and mini-gastric bypass (MGB) on obese patients suffering from T2DM in the Indian population and their long-term association with regard to diabetes remission, resolution of comorbidities, and percentage EWL. Methods: Retrospective data of obese patients with T2DM (preoperative BMI 45.37 ± 8.1) who underwent bariatric surgery (RYGB, LSG, and MGB) were analyzed in this study over a period of 9 years. The mean follow-up period was 2.2 years. Following surgery, the clinical outcome on BMI, resolution of percentage weight loss, and T2DM were studied. The predictive factors of diabetic remission after surgery were determined. Student’s t test and ANOVA and McNemar’s test were applied. Results: Out of a total of 274 patients, complete remission of T2DM was achieved in 52.9% (n = 145) with mean fasting blood glucose and glycated hemoglobin values being 6.1 ± 0.769 (p = 0.00) at 1 year after surgery. The independent predictive factors of remission were age, gender, BMI, preoperative comorbidities, and % EWL. Gender had no correlation with the chance of achieving disease remission. Conclusion: Based on our results, bariatric surgery proves to be a successful treatment option resulting in sustained weight loss in obese patients suffering from T2DM. It is found to be beneficial for the long-term resolution of T2DM and improving comorbidities such as hypertension and dyslipidemia. The outcome of the different surgical methods is found to be similar for all patients irrespective of the independent predictors of complete remission.

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Application of BAROS’ questionnaire in obese patients undergoing bariatric surgery with 2 years of evolution

Arquivos de Gastroenterologia ◽

10.1590/s0004-2803.2017v54n1-12 ◽

2017 ◽

Vol 54 (1) ◽

pp. 60-64 ◽

Cited By ~ 3

Author(s):

Caetano de QUEIROZ ◽

José Afonso SALLET ◽

Pedro Gabriel Melo DE BARROS E SILVA ◽

Luzia da Gloria Pereira de Sousa QUEIROZ ◽

Jélis Arenas PIMENTEL ◽

...

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Long Term Results ◽

Morbidly Obese ◽

Obese Patients ◽

Index Reduction ◽

Clinical Complications ◽

Number Of Patients ◽

Prevalence Of Obesity

ABSTRACT BACKGROUND -In recent decades, the high prevalence of obesity in the general population has brought serious concerns in terms of public health. Contrarily to conventional treatment involving dieting and physical exercising, often ineffective in generating long term results, bariatric operations have been an effective method for sustained weight loss in morbidly obese individuals. The Bariatric Analysis and Reporting Outcome System (BAROS) is an objective and recognized system in the overall evaluation of results after bariatric surgery. OBJECTIVE To investigate results concerning a casuistic of morbidly obese patients undergoing bariatric surgery over a 2-year follow-up in terms of weight loss, related medical conditions, safety and changes in quality of life. METHODS A total of 120 obese (17 male and 103 female) patients, who underwent bariatric surgery, were assessed and investigated using the BAROS system after a 2- year follow-up. RESULTS Patients obtained a mean excess weight loss of 74.6 (±15.9) % and mean body mass index reduction of 15.6 (±4.4) Kg/m2. Pre-surgical comorbidities were present in 71 (59%) subjects and they were totally (86%) or partially (14%) resolved. Complications resulting specifically from the surgical procedure were observed in 4.2% of cases (two bowel obstructions requiring re-operation, and three stomal stenosis treated with endoscopic dilation). Sixteen subjects (13% of total number of patients) presented minor clinical complications managed through outpatient care. The final scores for the BAROS questionnaire showcased excellent to good results in 99% of cases (excellent 44%, very good 38%, good 23%, acceptable 1%). CONCLUSION According to the BAROS questionnaire, bariatric surgery is a safe and effective method for managing obesity and associated clinical comorbidities, allowing for satisfactory results after a 2-year follow-up. Future studies should address other clinical and psychosocial variables that impact outcome as well as allow for longer follow-ups.

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The Influence of Body Contouring Surgery on Weight Control and Comorbidities in Patients After Bariatric Surgery

Obesity Surgery ◽

10.1007/s11695-019-04298-1 ◽

2019 ◽

Vol 30 (3) ◽

pp. 924-930 ◽

Cited By ~ 3

Author(s):

C. E. E. de Vries ◽

M. C. Kalff ◽

E. M. van Praag ◽

J. M. G. Florisson ◽

M. J. P. F. Ritt ◽

...

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Weight Control ◽

Body Contouring ◽

Mixed Effect ◽

Body Contouring Surgery ◽

Number Of Patients ◽

Post Bariatric Surgery ◽

The Impact

Abstract Introduction A considerable number of patients experience some long-term weight regain after bariatric surgery. Body contouring surgery (BCS) is thought to strengthen post-bariatric surgery patients in their weight control and maintenance of achieved improvements in comorbidities. Objectives To examine the impact of BCS on long-term weight control and comorbidities after bariatric surgery. Methods We performed a retrospective study in a prospective database. All patients who underwent primary Roux-en-Y gastric bypass (RYGB) and presented for preoperative consultation of BCS in the same hospital were included in the study. Linear and logistic mixed-effect model analyses were used to evaluate the longitudinal relationships between patients who were accepted or rejected for BCS and their weight loss outcomes or changes in comorbidities. Results Of the 1150 patients who underwent primary RYGB between January 2010 and December 2014, 258 patients (22.4%) presented for preoperative consultation of BCS. Of these patients, 126 patients eventually underwent BCS (48.8%). Patients who were accepted for BCS demonstrated significant better ∆body mass index (BMI) on average over time (− 1.31 kg/m2/year, 95% confidence interval (CI) −2.52 − −0.10, p = 0.034) and percent total weight loss (%TWL) was significantly different at 36 months (5.79, 95%CI 1.22 – 10.37, p = 0.013) and 48 months (6.78, 95%CI 0.93 – 12.63, p = 0.023) after body contouring consultation. Patients who were accepted or rejected did not differ significantly in the maintenance of achieved improvements in comorbidities. Conclusion BCS could not be associated with the maintenance of achieved improvements in comorbidities after bariatric surgery, whereas it could be associated with improved weight loss maintenance at 36 and 48 months after body contouring consultation. This association should be further explored in a large longitudinal study.

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Long-Term Weight Outcomes after Bariatric Surgery: A Single Center Saudi Arabian Cohort Experience

Journal of Clinical Medicine ◽

10.3390/jcm10214922 ◽

2021 ◽

Vol 10 (21) ◽

pp. 4922

Author(s):

Assim A. Alfadda ◽

Mohammed Y. Al-Naami ◽

Afshan Masood ◽

Ruba Elawad ◽

Arthur Isnani ◽

...

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Saudi Arabia ◽

Weight Regain ◽

Severe Obesity ◽

Successful Outcome ◽

Post Surgery ◽

Weight Outcomes

Background: Obesity is considered a global chronic disease requiring weight management through lifestyle modification, pharmacotherapy, or weight loss surgery. The dramatic increase in patients with severe obesity in Saudi Arabia is paralleled with those undergoing bariatric surgery. Although known to be beneficial in the short term, the long-term impacts of surgery within this group and the sustainability of weight loss after surgery remains unclear. Objectives: We aimed to assess the long-term weight outcomes after bariatric surgery. Setting: The study was conducted at King Khalid University Hospital (KKUH), King Saud University Medical City (KSUMC) in Riyadh, Saudi Arabia. Methods: An observational prospective cohort study on adult patients with severe obesity undergoing bariatric surgery (sleeve gastrectomy (SG) or Roux-en Y gastric bypass (RYGB)) during the period between 2009 and 2015 was conducted. Weight loss patterns were evaluated pre- and post-surgery through clinical and anthropometric assessments. Absolute weight loss was determined, and outcome variables: percent excess weight loss (%EWL), percent total weight loss (%TWL), and percent weight regain (%WR), were calculated. Statistical analysis using univariate and multivariate general linear modelling was carried out. Results: A total of 91 (46 males and 45 females) patients were included in the study, with the majority belonging to the SG group. Significant weight reductions were observed at 1 and 3 years of follow-up (p < 0.001) from baseline. The %EWL and %TWL were at their maximum at 3 years (72.4% and 75.8%) and were comparable between the SG and RYGB. Decrements in %EWL and %TWL and increases in %WR were seen from 3 years onwards from bariatric surgery until the study period ended. The yearly follow-up attrition rate was 20.8% at 1 year post-surgery, 26.4% at year 2, 31.8% at year 3, 47.3% at year 4, 62.6% at year 5, and 79.1% at end of study period (at year 6). Conclusion: The major challenge to the successful outcome of bariatric surgery is in maintaining weight loss in the long-term and minimizing weight regain. Factors such as the type of surgery and gender need to be considered before and after surgery, with an emphasis on the need for long-term follow-up to enssure the optimal benefits from this intervention.

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Abstract P203: Demographic Predictors of Long-term Weight Loss Beginning One-Year After Bariatric Surgery at Two Medical Centers

Circulation ◽

10.1161/circ.129.suppl_1.p203 ◽

2014 ◽

Vol 129 (suppl_1) ◽

Author(s):

Laura Rasmussen-Torvik ◽

Abigail Baldridge ◽

Jennifer Pacheco ◽

Sharon Aufox ◽

Kwang-Young Kim ◽

...

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Weight Regain ◽

Mixed Effects ◽

Mixed Effects Models ◽

Linear Mixed Effects ◽

Post Surgery ◽

Percentage Weight

Objective: Existing studies of predictors of weight loss after bariatric surgery suffer from simplistic statistical methods and relatively short follow-up. We sought to determine predictors of long-term weight loss up to 9.6 years after bariatric surgery using data extracted from two electronic health records (EHR) systems and linear mixed effects models. Methods: Participants were selected from patients enrolled in the NUgene biorepository at either Northwestern Memorial HealthCare or NorthShore University HealthSystem. Individuals who had undergone Roux-en-Y gastric bypass (RNY) were identified through billing or surgical history procedure codes in the electronic health records (EHRs). All available weight measurements and dates were extracted from the EHR as well as surgery date. Sex, race/ethnicity, education, marital status, and height were taken from the NUgene intake questionnaire. SAS PROC MIXED was used to create linear mixed effects models to examine weight loss from 1- 9.6 years post-surgery. To examine overall weight loss and slope of weight regain, covariates and covariate interactions with time post-surgery were included in the mixed effects models. Results: 119 individuals from Northwestern and 43 individuals from NorthShore had undergone gastric bypass and had at least 1 weight measurement 1 year post-surgery. There were 3071 weight measurements which occurred at least 1 year post-surgery in the dataset; the median number of observations per person was 10 and the median weight loss represented by these measurements was 32.7% from pre-surgical weight. The regression model indicated that, on average, individuals experienced slight weight regain of about 0.8% of pre-surgical weight per year after their first year post-surgery. Over the 1- 10 years of follow up African Americans lost nearly 5 percentage points less weight than whites ( p =.0025) . People who were older and taller also experienced less percentage weight loss, and people with higher initial weights experienced a higher percentage weight loss (all p <.05), Older age was associated with significantly (p<0.05) slower weight regain after 1 year post-surgery. Discussion: EHR records from multiple institutions can be integrated to study outcomes after bariatric surgery. Demographic factors predict overall weight loss and a rate of weight regain after 1 year post RNY surgery. This information may be useful for both surgeons and prospective patients.

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Altered GH-IGF-1 Axis in Severe Obese Subjects is Reversed after Bariatric Surgery-Induced Weight Loss and Related with Low-Grade Chronic Inflammation

Journal of Clinical Medicine ◽

10.3390/jcm9082614 ◽

2020 ◽

Vol 9 (8) ◽

pp. 2614

Author(s):

Paula Juiz-Valiña ◽

Lara Pena-Bello ◽

Maria Cordido ◽

Elena Outeiriño-Blanco ◽

Sonia Pértega ◽

...

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Chronic Inflammation ◽

Morbidly Obese ◽

Endocrine Disorders ◽

Low Grade ◽

Obese Patients ◽

Free T4 ◽

Preoperative Body Mass Index ◽

Post Surgery

Endocrine disorders are common in obesity, including altered somatotropic axis. Obesity is characterized by reduced growth hormone (GH) secretion, although the insulin-like growth factor-1 (IGF-1) values are controversial. The aim of this study was to evaluate the effect of weight loss after bariatric surgery in the GH–IGF-1 axis in extreme obesity, in order to investigate IGF-1 values and the mechanism responsible for the alteration of the GH–IGF-1 axis in obesity. We performed an interventional trial in morbidly obese patients who underwent bariatric surgery. We included 116 patients (97 women) and 41 controls (30 women). The primary endpoint was circulating GH and IGF-1 values. Circulating IGF-1 values were lower in the obese patients than in the controls. Circulating GH and IGF-1 values increased significantly over time after surgery. Post-surgery changes in IGF-1 and GH values were significantly negatively correlated with changes in C-reactive protein (CRP) and free T4 values. After adjusting for preoperative body mass index (BMI), free T4 and CRP in a multivariate model, only CRP was independently associated with IGF-1 values in the follow-up. In summary, severe obesity is characterized by a functional hyposomatotropism at central and peripheral level that is progressively reversible with weight loss, and low-grade chronic inflammation could be the principal mediator.

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Prospective Study of Attachment as a Predictor of Binge Eating, Emotional Eating and Weight Loss Two Years after Bariatric Surgery

Nutrients ◽

10.3390/nu11071625 ◽

2019 ◽

Vol 11 (7) ◽

pp. 1625 ◽

Cited By ~ 2

Author(s):

Samantha E. Leung ◽

Susan Wnuk ◽

Timothy Jackson ◽

Stephanie E. Cassin ◽

Raed Hawa ◽

...

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Binge Eating ◽

Prospective Study ◽

Attachment Style ◽

Emotional Eating ◽

Attachment Insecurity ◽

Eating Psychopathology ◽

Post Surgery

Bariatric surgery remains the most effective treatment for severe obesity, though post-surgical outcomes are variable with respect to long-term weight loss and eating-related psychopathology. Attachment style is an important variable affecting eating psychopathology among individuals with obesity. To date, studies examining eating psychopathology and attachment style in bariatric surgery populations have been limited to pre-surgery samples and cross-sectional study design. The current prospective study sought to determine whether attachment insecurity is associated with binge eating, emotional eating, and weight loss outcomes at 2-years post-surgery. Patients (n = 108) completed questionnaires on attachment style (ECR-16), binge eating (BES), emotional eating (EES), depression (PHQ-9), and anxiety (GAD-7). Multivariate linear regression analyses were conducted to examine the association between attachment insecurity and 2-years post-surgery disordered eating and percent total weight loss. Female gender was found to be a significant predictor of binge eating (p = 0.007) and emotional eating (p = 0.023) at 2-years post-surgery. Avoidant attachment (p = 0.009) was also found to be a significant predictor of binge eating at 2-years post-surgery. To our knowledge, this study is the first to explore attachment style as a predictor of long-term post-operative eating pathology and weight outcomes in bariatric surgery patients.

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Abstract P342: Associations Between Sleep Duration and Sleep Quality and Long-Term Weight Status in Post-Bariatric Surgery Patients

Circulation ◽

10.1161/circ.137.suppl_1.p342 ◽

2018 ◽

Vol 137 (suppl_1) ◽

Author(s):

Elsa Thomas ◽

Devon Roeshot ◽

Dympna Gallagher ◽

Marie-Pierre St-Onge

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Sleep Quality ◽

Sleep Duration ◽

Weight Change ◽

Weight Status ◽

Post Surgery ◽

Post Bariatric Surgery

Introduction: The prevalence of obesity continues to rise since 1980. This obesity epidemic has been paralleled by a trend of reduced sleep duration and sleep quality throughout the years. However, there is limited research on the relation between sleep duration and quality and its association with weight loss maintenance. The purpose of this study was to examine the association between sleep duration and quality and weight status in post-bariatric surgery patients at 9-y post-surgery. We tested the hypothesis that participants’ post-surgical weight change would be related to sleep duration and quality at 9-y. Methods: Sleep data were collected on a subset of participants (mean body weight = 94.1 kg ± 18.9) enrolled in an ancillary study to the Longitudinal Assessment for Bariatric Surgery trial. Self-reported hours of sleep per night and overall sleep quality were assessed once, at the 9-y visit using the Pittsburgh Sleep Quality Index (PSQI) questionnaire. Results: Complete data were available on 14 participants (10 females and 4 males, age 52.1 ± 15.6 y), current weight 94 kg ± 18.9. Average total weight loss from pre-surgery was 28.5% ± 10.6, with an average weight gain of 0.3 ± 6.2 % over the last 2 y of follow-up. Participants reported average sleep duration of 6.8 ± 2.0 h/night at the 9-y evaluation visit and an average score of 7.9 ± 3.7 on the PSQI. There was no relation between sleep duration and current weight or percent weight change after maximum weight loss, which occurred around 2-y post-surgery. However, there were trends for an association between sleep quality and percent weight change after maximum weight loss (p=0.057) and percent weight change in the last 2-y of follow-up (p=0.066). In general, participants who lost more weight over the last 2 y of the study had lower scores on the PSQI, indicating better quality of sleep. Conclusion: Our results showed no association between sleep quality or duration and long-term changes in weight for patients who underwent bariatric surgery. However, those with better sleep quality tended to have more beneficial changes in weight over the latest 2-y. It is important to note that this study cannot address causality and whether improved weight influenced sleep quality or whether sleep quality influenced weight change. Further studies should examine the temporality of these association. Sleep quality may be an important sleep metric to consider for long-term weight loss maintenance.

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