Active clinical trials for "Obesity, Morbid"

he increasing prevalence of obesity in developed countries has also reached Brazil in the last two decades. Conventional treatments are not efficient to sustained weight loss and in some cases, weight reduction in individuals refractory to these methods. Bariatric surgery has been considered as the most efficient long-term treatment. However, numerous studies have reported weight regain in approximately 20% of patients, from the second year of surgery. The objective of this study is to analyze the changes in resting metabolic rate and body composition before, 6 and 36 months after weight loss and its relation to late weight regain. 48 adults of both sexes, above 18 years, will undergo bypass performed the ambulatory of the Bariatric and Metabolic Surgery Unit of the Department of Gastroenterology of HCFMUSP. Patients over 60 years, undergoing revision surgery and other surgical techniques will be excluded. The body weight (kg) will be measured by In Body 230. BMI (kg/m2) shall be determined by dividing body weight (kg) by height (m) squared. Excess weight (kg): difference in preoperative weight versus ideal weight considered for weight for BMI 25kg/m2. Weight loss (kg): pre-surgery weight difference in relation to the lowest weight reached after 18 months. Percentage of excess of weight loss is difference of weight loss in relation to overweight, used as an indicator of success of surgery. Fat mass (%, kg) and fat-free mass (%, kg) will be obtained by electrical bioimpedance 230, 2.0. For resting metabolic rate, the values of VO2 and VCO2 will be collected by indirect calorimetry using Ultima CPX metabolic analyzer. The daily energy expenditure (kcal/day) will be calculated by the Weir equation. keywords: obesity, resting metabolic rate, body composition analysis, bariatric surgery.

The aim of our study is to evaluate the efficacy of "60 meters 60 seconds exercise test" (a test designed by the study group) done preoperatively as a predictor test for postoperative intensive care unit need and extubation success in patients undergoing bariatric surgery.

A growing body of work done over the past few decades has established that adipose tissue as an active endocrine organ which secretes a wide range of metabolic and immunological factors collectively called "adipokines (1)." Importantly, these secreted factors enter into the circulation and have paracrine and autocrine actions, which profoundly impact systemic metabolism (e.g., insulin sensitivity). Additionally, in animals, loss of ovarian hormone production via ovariectomy (similar to menopause in humans) leads to increases in both in adipose tissue mass and in adipose tissue inflammation (2) making this tissue less healthy than that from premenopausal animals. To date, no studies have investigated the effect of menopause on abdominal fat in overweight individuals. Knowing if adipose tissue-specific changes occur with menopause may potentially lead to recommendations or therapeutics to improve women's health post menopause.

The study is based on data from morbidly obese patients who fulfilled the criteria for bariatric surgery during 2016-2018 at the Department of Surgery, University Hospital Ostrava, Czech Republic.

Axillary brachial plexus block (freezing the nerves in armpit) is commonly performed as a primary anesthetic technique for the elbow/ forearm or hand surgery. These nerves are identified using ultrasound and nerve stimulator (by stimulating the nerves using a small current through the needle). Axillary brachial plexus block has been shown to result in better pain relief, less nausea, vomiting and early discharge from hospital. The use of these nerve blocks have also shown to decrease the duration of hospital stay, decreased side effects of opioids painkillers and better satisfaction scores over the conventional use of intravenous and oral pain medications. These beneficial effects are particularly useful for patients who are overweight or obese. A study by Hauouz et al published in Anesthesia and Analgesia in July 2010 suggests that the success rate of brachial plexus block is lower for obese and overweight patients. However, ultrasound guidance was not used for performing axillary brachial plexus block in this study. We propose that with usage of ultrasound guidance the success rate of brachial plexus block will be similar in obese and non-obese patients. In this study, we want to compare the success rate of axillary brachial plexus block for obese and non-obese patient groups. We would also like to look at performance time, complications and patient satisfaction for our study population.

A prospective clinical trial will study the effects of laparoscopic sleeve gastrectomy in the potential renal transplant candidate who is denied acceptance due mainly to the morbid obesity.

This study aimed to measure, compare apelin, resistin, visfatin levels in patients underwent to RYGBP, LAGB and their relation with obesity.

Preoperative venous return stability and euvolemia is essential in management of morbidly obese patients. Fluid therapy regimes for patients with high BMI, especially with focus on preoperative management, are rare and not in consensus.The aim of this study was to evaluate preoperative effects of a standardized, ideal body weight (IBW) based volume-challenge on hemodynamics, stroke volume and level of venous return to the heart.

This study will determine how morbid obesity affects the distribution and metabolism of the drug propofol. The investigators hypothesize that propofol will be distributed and metabolized differently in morbidly obese subjects as compared to normal weight subjects.

The goal of this study is to describe the clinical presentation, indications, and operative treatment as well as assess the morbidity, mortality, and overall performance of revisional Roux-en-Y gastric bypass (RYGB) after either failed or functional antireflux surgery "ARS" in obese patients. With such information, we hope to determine which features might assist us in advancing our knowledge about Gastro-Esophageal Reflux Disease "GERD", the best option for primary ARS, and mechanisms of failure in the obese population as well as in identifying predictors of outcome after revisional surgery in this population.