
Effect of RING on Gastroesophageal Reflux (GERD) After RYGBP
Morbid ObesityGastroesophageal Reflux Disease1 moreSilastic rings have been used around the gastric pouch in order to promote better weight loss after Roux-and-Y gastric bypass surgery ( RYGBP). However the investigators have shown that some patients developed gastroesophageal reflux disease after RYGBP in a previous study. The investigators hypothesized that the use of a silastic ring may play a role in promoting GERD after this operation.

Closed Incision Negative Pressure Wound Therapy vs. Foam as Post Operative Dressing
DiabetesMorbid Obesity2 moreThe primary objective is to assess the frequency of a wound healing complication, in a closed incisional wound in a "high risk" surgical incision when treated with Negative Pressure Wound Therapy versus a highly absorbent antimicrobial post - operative absorbent dressing.

Laparoscopic Adjustable Gastric Banding With Truncal Vagotomy
Morbid ObesityObstructive Sleep Apnea5 moreLaparoscopic Adjustable Gastric Banding (LAGB) is a gold standard in the surgical treatment of morbid obesity. We hypothesize that the addition of truncal vagotomy (cutting of nerves to the stomach) will produce greater weight loss and better reduction of co-morbidities (diseases caused by or aggravated by morbid obesity) than LAGB alone. 25 patients will be enrolled and outcomes compared to LAGB historical controls over a post-operative period of 24 months.

Weight Loss and Breast Cancer
Breast CancerObesity1 moreObesity is an important risk factor for postmenopausal breast cancer. A large meta-analysis concluded that obesity is associated with a 20% to 40% increased risk for receptor-positive postmenopausal breast cancer. The International Agency for Research on Cancer working group on obesity and cancer risk drew similar conclusions. Obesity seems to have the opposite effect among premenopausal women, with most studies suggesting that higher BMI is associated with a reduced risk of premenopausal breast cancer. Determining whether deliberate weight loss is associated with a reduced risk of breast cancer is difficult in part because sustained weight loss is difficult to achieve and few studies have sufficient statistical power to address this question. Bariatric surgery is one of the few weight loss interventions in which significant weight loss is maintained. A limited number of previous studies have suggested a reduced risk of cancer following bariatric surgery. Recently, it showed that bariatric surgery is associated with a lower risk of several types of cancer, including an approximately 40 % reduction in the risk of postmenopausal breast cancer. However, whether bariatric surgery affects breast cancer risk in premenopausal women and whether this association is altered by estrogen receptor (ER) status has not been addressed. The aim of this study is to examine the relationship between weight loss after laparoscopic sleeve gastrectomy (LSG) and breast cancer.

Diabetes Remission After RYGBP and RYGBP With Fundus Resection
Type 2 DiabetesMorbid Obesity1 moreThe goal of this randomized clinical trial is to evaluate glycemic control in patients with morbid obesity and type 2 diabetes after Roux-en-Y gastric bypass (RYGBP) and RYGBP with fundus resection. The main questions to answer are: Rate of diabetes remission and the role of the gastrointestinal hormones Whether fundus resection leads to improved glycemic control Patients will randomly undergo typical RYGBP or RYGBP with fundus resection. Gastrointestinal hormones profile [ghrelin, glucagon-like peptide-1 (GLP-1), peptide YY (PYY), glucagon], glucose levels and insulin response will be measured preoperatively, at 6 months and at 12 months, during 120-min OGTT.

Late Gestational Diabetes Mellitus Diagnosis in Obese Women
Gestational Diabetes Mellitus in PregnancyMacrosomia9 moreIn the current work, we aim to perform a prospective study that will investigate the relationship between maternal obesity (BMI >30 kg/m2) and morbid obesity (BMI >35 kg/m2) with a late GDM diagnosis (>32 weeks), with an emphasis on obstetric and neonatal outcomes.

Preoxygenation Optimisation in Obese Patients
Severe Obesity Design as BMI > 35kg/m2Oro-tracheal intubation in operating room in obese patients with BMI > 35kg/m2 remains a critical event. The aim of this study is to determine whether Nasal High Flow Therapy by nasal cannula Optiflow® is more efficient than the BIPAP preoxygenation before orotracheal intubation after crash induction in obese patients

Single Anastomosis Sleeve Jejunal (SAS-J) Bypass
Morbid ObesityThe purpose of this study is to determine the efficacy of single anastomoses sleeve jejunal bypass as a treatment for morbid obesity

Laparoscopic Internal Gastric Banding, New Simple and Costless Weight Loss Procedure
Morbid ObesityThe purpose of this study is to study the effectiveness of laparoscopic internal gastric banding as a treatment for morbid obesity in comparison to laparoscopic sleeve gastrectomy

Setmelanotide for the Treatment of Leptin Receptor (LEPR) Deficiency Obesity
Leptin Receptor Deficiency ObesityTo demonstrate statistically significant and clinically meaningful effects of setmelanotide on percent body weight change in participants with LEPR deficiency obesity due to rare bi-allelic or loss-of function mutations at the end of 1 year of treatment.