Active clinical trials for "Obesity"

The aim of this study is to gain insight into brain structure and the neural networks that control taste and eating behaviour in patients with severe obesity undergoing a primary sleeve gastrectomy (SG) or a lifestyle intervention for weight loss compared with normal weight individuals, using functional magnetic resonance imaging (fMRI).

Evaluation of the diagnostic performance of an algorithm developed to detect metabolic profiles specific of non-alcoholic steatohepatitis NASH and based on the reading of a blood sample's infrared spectra

The investigators aim to test an evidence-based intervention, allocated to a mobile app designed to parents and their children with 3 to 6 years old, identified by family doctors or nurses at well-child care visits as overweight or obese for age. This intervention aims to improve parent's perceptions and attitudes regarding children's weight status and food intake, leading to better dietary intake and children's' eating behaviors through positive parental child-feeding practices. In this study, the investigators aim to assess the feasibility of the intervention and explore its impact on the beliefs and attitudes of parents.

Obesity is not a homogeneous condition and that the regional distribution of adipose tissue is important to understanding the relation of obesity to disturbances in glucose and lipid metabolism. Central abdominal fat is composed of abdominal subcutaneous fat and visceral fat. Regional distribution appears to be an important indicator for metabolic alterations since an inconstant correlation between body mass index (BMI) and these disturbances have been found. Visceral obesity is associated with increased adipocytokine production, proinflammatory activity, deterioration of insulin sensitivity, increased risk of developing diabetes, "high-triglyceride/low-HDL cholesterol dyslipidemia," hypertension and atherosclerosis. It might be more precise to divide central abdominal fat into subcutaneous(S) and visceral (V) fat surface area and volume and even ratio (S/V); risk factors for cardiovascular disease, particularly those related to glucose and lipid metabolism and hypertension, being>0.4; with evaluation of visceral fat functionality by visceral adiposity index (VAI) with integration with lipid profile. Adding bladder wall thickness with perivesical fat as a factor may impair bladder function and contribute to dysregulation. The data on the association between central adiposity with OAB symptoms and Urodynamics is not mature.

Obesity is a pandemic problem in modern societies. Bariatric surgery (gastric by-pass and sleeve gastrectomy) has emerged as an efficient treatment to reduce morbidity and mortality related to obesity. Obesity and bariatric surgery are known to be risk factors of surgical site infections (SSI). The occurrence of SSI increases health cost and the duration of hospitalization. However, an appropriate antibiotic prophylaxis has been shown to reduce SSI. As recommended by several national societies, the antibiotic prophylaxis dose should be increased in the severely obese population. However, this recommendation lies on a low level of evidence. Besides, great disparities regarding obese patient antibiotic prophylaxis exist between countries and adequate doses are still not clearly defined. In France, for instance, the intravenous second generation cephalosporin CEFOXITIN is used for antibiotic prophylaxis in bariatric surgery at the initial loading dose of 4g (2-fold that of non-obese population) at the beginning of surgery. Obese patients have increased risk of under-dosage due to modification of their pharmacokinetics (fat/lean mass, distribution volume, renal clearance, etc.). Only few studies, all investigating a low amount of patients, evaluated the appropriateness of intraoperative antibiotic prophylaxis dosage of different betalactam and cephalosporin in the obese population. This population was more likely to be under-dosed. The aim of this study is to analyse the appropriateness of the reference dose of intravenous Cefoxitin used as antibiotic prophylaxis in severely obese patients undergoing bariatric surgery. This will be a 2-year prospective monocentric study held in the University Hospital of Nancy, France. A large group of obese patients (~300) will be included. Serial serum concentration measurements of Cefoxitin will be performed before, during, and at skin closure of the bariatric surgery. This study will give insights in pharmacokinetics of the antibiotic prophylaxis in the obese population and will help to determine the initial dosage and the optimal method for antibiotic prophylaxis administration.

Emerging evidence suggests that alternative obesity management strategies need to address barriers to engaging with regular physical activity to adopt healthier lifestyles. It is hypothesized that more men living with obesity who are exposed to an online home-based circuit strength training for 12 weeks will be more physically active, 34 weeks after the intervention compared with people who are not exposed to the program.

It is planned to investigate whether obesity affects the recovery profile after anesthesia in pediatric patients. To evaluate recovery profile, time to spontaneous ventilation (the time between anesthetic discontinuation and beginning of spontaneous ventilation), LMA removal time (the time between anesthetic discontinuation and LMA removal), open eyes (the time between anesthetic discontinuation and eye opening in response to verbal stimulus or painful pinching), and PACU discharge will be also noted.

Cognitive dysfunction is the impairment of mental process of perception. memory and information processing which allow the human to acquire knowledge and plan for the future. The etiology of Post operative cognitive dysfunction (POCD) is unclear and seems to be multifactorial involving a combination of patient, surgical, anesthetic and environmental factors. The definition of day surgery in Great Britain and Ireland is clear; the patient is admitted and discharged on the same day.

The aim of this study is to determined the smallest significant value in osteodensitometry in obese population. The study population will be divided in 3 groups according to their BMI. Bone mineral density will be measured twice in osteodensitometry, then the smallest significant value will be determined. Our hypothesis is that the smallest significant value that we use in an non-obese population can be different in an obese population.

Kiritimati is an isolated coral atoll in the Pacific Ocean, and is one of 32 islands that comprise the Republic of Kiribati. Obesity and type 2 diabetes rates are high in Kiribati, but the causes and rates of childhood obesity/diabetes are unknown. However, it has been hypothesized that high consumption of sugar-sweetened beverages on Kiritimati may be a contributing factor. The investigators therefore conducted a study in Kiritimati in September 2018 with the aim of 1) quantifying obesity and diabetes rates amongst children on Kiritimati and 2) testing the feasibility of a sugar-reduction intervention in Kiritimati schools. The investigators randomized the two high schools on the island to either the control group or the intervention group. The investigators measured height/weight, continuous blood glucose (using flash glucose monitoring), and diet (using 24-hour diet recalls). One week into the study, the intervention school received an intervention, which consisted of installation of a water filter at the school, the provision of water bottles to each student at the school, and a 30-minute educational presentation on the link between sugar consumption and type 2 diabetes. The investigators then measured how blood glucose and diet changed the week following the intervention, and compared this to the control school.