Active clinical trials for "Obesity, Morbid"

The hypothesis of this study was that gastric bypass (GBP) ameliorates gastroesophageal reflux disease (GERD) in morbidly obese patients.

This study will assess various published staging tools to assess the health impacts of obesity on individuals. The aim is to identify benefits and drawbacks, and thus help Obesity Centres and GPs better assess obese individuals as well as better identify who benefits most from having weight loss treatment.

Very little information is available about extremely obese (body mass index [BMI] > 40 kg/m2) adolescents. The purpose of the Follow up of Adolescent Bariatric Surgery (FABS) study is to collect information obtained during the clinical care of obese adolescents from all over the country that can be used by researchers to study obesity, the complications of obesity, and the outcomes of obesity treatment during adolescence. This information will be used to describe the experience of the obese adolescent, including how obesity during adolescence and its treatment impacts health and well-being. The information may also be used to study causes of obesity, to determine the predictors of successful obesity treatment and for other obesity related research. Because of the importance of understanding the outcome of obesity and obesity treatments (surgical and non-surgical) on the patient over time, the data included in the study will be collected before, during and after any treatments rendered. For those who do not undergo a treatment which results in major weight change, it will be critical to determine the natural history of adolescent severe obesity as the adolescent transitions into adulthood. Finally, another important purpose of the FABS research study is to obtain patients' consent to be contacted for possible participation in future research studies. SPECIFIC AIMS: To describe the natural history of morbid obesity among adolescents who seek treatment for their obesity To describe major outcomes following bariatric surgery in adolescents evaluated at 3, 6, 12, and annually for 10 years post-operatively and compare these to outcomes to patients managed non-surgically To organize a national cohort of severely obese adolescents who agree to be contacted in the future for research studies

The main aim of this study is to analyze and report the very long-term outcomes after primary laparoscopic proximal Roux-en-Y gastric bypass surgery for clinically severe obesity.

Increase in body mass index (BMI)is associated with a decrease in expiratory flows.Obesity is also associated with an increased prevalence of asthma.Consequences of obesity on respiratory function and on bronchial responsiveness are still to be documented. This study aims to evaluate, before and after surgery, the impact of a bariatric surgery (biliopancreatic diversion with duodenal switch)on respiratory function in patients with morbid obesity . Our hypothesis is that weight loss following bariatric surgery will induce significant improvements in pulmonary function and airway responsiveness, and, as a consequence, a reduction in respiratory symptoms,these changes being correlated with a reduction in systemic markers of inflammation. Maintenance of weight loss after one year will permit the persistence of these improvements

Patients with BMI over 40 or with BMI over 35 and comorbidities are offered SADI-S with a variable limb length between 250 cm and 300 cm or gastric bypass. Results on weight loss, comorbidities resolution, complications, re-operations, need of supplements are registered.

This is a questionnaire asking about the sleeve gastrectomy surgery and how has it altered food preferences before and after surgery.

The purpose of this study is to determine if gastric bypass patients experience hypoventilation in the immediate postoperative period, and to what degree.

Despite the wide range of studies concerning the positive effects of bariatric surgery on metabolic state of morbid obese patient, it is necessary to further investigate the specific role of the "sleeve-gastrectomy" intervention, going not only to research results in terms of safety or efficacy on the treatment of comorbidities, but also aimed to understand whether the improvement of metabolic and cardiovascular parameters is due to total weight loss or rather to visceral fat loss, and how much of this improvement is attributable to changes in inflammatory status. The primary endpoint of the study is to evaluate the effect of sleeve-gastrectomy on metabolic parameters (glyco-lipidic assessment, vitamins), bone-remodelling parameters (vitamin D, parathormone) and cardiovascular parameters (blood pressure, flow-mediated dilation, indexed left ventricular mass, inter-ventricular septum, carotid intima-media thickness) in a large obese population on the basis of total weight loss (TWL), variation of visceral fat area (VFA), variation of peri-renal fat thickness and insulin resistance index ("Homeostasis Model Assessment-insulin resistance" - HOMA). In addition the investigators set themselves the objective of assessing whether the presence of comorbidities (diabetes and hypertension) can influence the effects of the intervention on the above parameters, and whether the levels of the NETs and of adipokines such as chemerin in the pre- and post-intervention can correlate with the metabolic-vascular dysfunction, and play a role in its eventual improvement.

Prospective multicenter observational clinical study on a dietary regimen in obese patients scheduled for bariatric surgery.