View clinical trials related to Morbid Obesity.
Filter by:Bariatric surgery in the treatment of morbid obesity is associated with long-term weight-loss and decreased overall mortality. Long-term results have been reported for laparoscopic gastric bypass procedures but the long-term results of laparoscopic sleeve gastrectomy are yet unavailable. As sleeve gastrectomy is a rapid and less traumatic procedure with good short-term results of weight loss and resolution of comorbidities, the investigators initiated a prospective randomized two-center study comparing laparoscopic sleeve gastrectomy (LSG)with laparoscopic gastric bypass (LGB) in the treatment of morbid obesity. Study hypothesis: As sleeve gastrectomy is less traumatic, easier and faster to perform compared with gastric bypass,LSG could become the procedure of choice to treat morbid obesity if the long-term results of weight loss and resolution of comorbidities are comparable with laparoscopic gastric bypass.
This study has two phases: 1. In phase 1 of the study (8 weeks),the effect of two different low calorie diets on manifestations of PCOS, including risk factors for the metabolic syndrome and cardiovascular risk profile will be compared. 2. In phase 2 the long term effect (next 44 weeks) on sustained weight-loss and the above mentioned parameters will be compared and evaluated.
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: 1. To describe the natural history of morbid obesity among adolescents who seek treatment for their obesity 2. 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 3. To organize a national cohort of severely obese adolescents who agree to be contacted in the future for research studies
Inflammation in the adipose (fat) tissue is an important condition leading to metabolic derangements and cardiovascular disease in obese patients. n-3 polyunsaturated fatty acids exert anti-inflammatory effects and prevent adipose tissue inflammation in rodent obesity. This study tests the hypothesis that n-3 polyunsaturated fatty acids ameliorate adipose tissue inflammation in morbidly obese patients.
An important step during a gastric bypass operation for the treatment of morbid obesity is the measuring of the small bowel length. At several reoperations we found a length increase of the lowest part of the small intestine of up to 80% compared to the measured length at the initial operation. On the one hand, this reflects a normal technical error of small bowel measuring due to the variable state of contraction of the bowel, but on the other hand, it could also be due to a compensatory increase in intestinal length after the operation. New protocols allow measuring of the small bowel length by MRI. Comparing the preoperative and later on several postoperative measurements by MRI with the initial intraoperative length measuring should allow to validate the new MRI protocol and in the same time quantify the eventual small bowel length increase. We plan to include 20 patients in this study.
Levels of tocotrienol in human tissues following supplementation is not currently known. The objective of this present study is to determine the levels of this form of vitamin E in the human tissues such as skin, heart, lung, liver, adipose tissue, Brain and cerebrospinal fluid (CSF) following oral supplementation
Despite progress in understanding the pathophysiology of obesity, current strategies for its medical management remain largely ineffective. Most efforts have focused on reducing caloric intake or increasing energy expenditure, either through behavior modification (e.g. dieting, regular exercise) alone, or augmented by pharmacologic efforts to decrease appetite, inhibit fat absorption, or alter metabolism. Bariatric surgery remains the only proven long term treatment of morbid obesity. Super morbidly obese (SMO: Body Mass Index (BMI) > 50) and super super morbidly obese (SSMO: BMI > 60) patients lose considerable weight, but stabilize at Body Mass Indexes (BMIs) that are still obese or even morbidly obese after risking considerable morbidity and/or mortality. Among commonly performed bariatric surgeries, a laparoscopic two-stage procedure, in which an initial restrictive procedure is followed after a weight loss of ~100 lbs by a more complex procedure that creates malabsorption, is gaining interest. Initial studies have demonstrated very good long-term weight loss with minimal morbidity, and no operative mortality in these high risk patients. Availability of biospecimens obtained at each stage of this protocol will allow participating scientists a unique opportunity to test in human tissues hypotheses developed in animals. Studies proposed under this application focus on fatty acids and overall fat disposition in fat depots (adipose tissue) of your body, and the role of adipose tissue hormones and inflammatory processes in obesity and its associated health related issues.
The aim of this study is to assess whether the energy you burn daily increases after you have bariatric surgery. Until now, there hasn't been an effective way of measuring all activity on a daily basis. Physical Activity Monitoring System (PAMS) has been created just for this purpose. PAMS is a garment that can be worn under your clothes, that records body position and movement through space. We will use the PAMS along with special water to measure your total daily energy expenditure right before surgery, and again 6 months and 24 months after surgery. Study subjects will be initially recruited from OHSU IRB-Approved advertisements. Interested study subjects will be screened through an informal telephone interview. If there are no health conditions that exclude participation, subjects will be asked to give IRB-approved consent. Subjects will be consenting to undergo three 18 day phases. Each phase will consist of 15 daily visits to the Clinical & Translational Research Center (CTRC), and 3 full day and nights in the CTRC.
The sleeve gastrectomy that has been utilized as a first-stage bariatric procedure to reduce surgical risk in high-risk patients by induction of weight loss is now gaining popularity as a standalone procedure for the treatment of morbid obesity. It appears to be a technically easier and/or faster laparoscopic procedure than Roux-en-Y gastric bypass. It brings good weight loss results, in some studies even comparable to the RYGB and Biliopancreatic Diversion with Duodenal Switch. The mechanism of action is assumed to be purely restrictive, but some neurohumoral interaction may exist. Almost no data exist on the influence of the sleeve gastrectomy on the medical and general quality of life or resolution of comorbidities. The rates of the comorbidities resolution 12 to 24 months after sleeve gastrectomy has been reported in the range that seems to be higher than for the purely restrictive procedures. Our goal is to to compare the surgical and weight loss outcomes between the two procedures, their influence on resolution of common comorbidities and on quality of life change. 150 eligible candidates will be randomized into two groups, one will undergo Laparoscopic Sleeve Gastrectomy, the other will have Laparoscopic Roux-en-Y Gastric Bypass done. Detailed evaluation and preoperative questionnaires will be used to obtain demographic and medical data, and quality of life will be assessed. General metabolic and nutritional work up will be done, and will be reassessed at different intervals up to 5 years, in order to compare the short and long term results of the two procedures.
The changes in risks of developing coronary heart disease in patients with morbid obesity after different weight loss interventions have not been extensively studied. The primary objective of this study is to investigate whether an intensive lifestyle intervention program in a tertiary care clinic (Spesialsykehuset for Rehabilitering) is comparable with a 7-week low-energy-diet followed by bariatric surgery in decreasing the risk of cardiovascular disease in these patients.