View clinical trials related to Gastric Bypass.
Filter by:A cross-sectional observational study in which pouch emptying rate is measured with MRI in good (TWL>35%) and bad responders (TWL<25%) two years after Laparoscopic Roux-en-Y Gastric Bypass (LRYGB).
Clinical trial participation has historically been heavily biased toward specific demographics. Several people will be invited to enroll in this study so that it may collect a variety of data about gastric bypass clinical trial experiences and identify barriers to participation as well as the causes of participants' failure or withdrawal. The information collected from this study can be used to improve patient experience and outcomes for future patients and an opportunity to contribute to the advancement of medical knowledge and treatments for gastric bypass.
The primary objective of this open-label pilot study is to investigate whether an endoscopically placed lumen apposing metal stent is an effective alternative to surgery in patients that have a clear indication for reversal of their gastric bypass.
Evaluation of serum gastrin levels and their effect on marginal ulcer formation.
Background: Roux-en-Y gastric bypass (RYGB) is a surgery with low rate complications. However, it is not exempt from them, and 1-6% suffer complications such as postoperative bleeding. Many intraoperative techniques have been evaluated to reduce postoperative bleeding, like the oversewing or reinforcement of the staple line. This study aims to evaluate the rate of postoperative bleeding in the oversewing of the staple line of the gastric remnant group versus the stapling only group. Methods: This is a 2-center, case-control study. The investigators randomly selected two groups who underwent RYGB or OAGB: group A (n=225) with oversewing from 2019-2020 and group B (n=225) with stapling only between the period of 2017-2018; both groups with similar demographic characteristics.
This is a clinical trial assessing the feasibility of the Napoleon device for measuring the gastrojejunal anastomosis (GJA). The study population is Roux-en-Y gastric bypass (RYGB) patients with weight regain undergoing an endoscopy at Bellevue Hospital Center or Brigham and Women's Hospital. investigators aim for a sample size of up to 100 cases. For each case, endoscopists will first visually estimate the diameter of the GJA by comparing its size to the upper endoscope. Then, they will measure the GJA with Napoleon. Investigators will compare the GJA measurements performed using visual estimation and Napoleon. A survey will be given to all endoscopists to assess the level of ease using Napoleon.
The primary objective of this study is to observe the kinetics of pre-stored and de-novo synthesized insulin that is secreted into the circulation using an in-vivo heavy water (D2O) labelling experiment in patients with postprandial hyperinsulinaemic hypoglycaemia (PHH) and non-surgical non-PHH controls.
The investigators want to evaluate the difference in glucose metabolism and intestinal hormonal response after a liquid meal versus a solid meal in patients after bariatric surgery.
The primary aim of this research project is to assess the safety and efficacy of the MGB operation in the UK
Aim of this prospective randomized intervention study is to evaluate the effect of a dietary intervention with a specific micronutrient-probiotic-combination for 12 weeks on fatty liver and cardiometabolic status in obese, nonalcoholic fatty liver disease (NAFLD) patients after Mini-Gastric Bypass (MGB) surgery.