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Bariatric Surgery clinical trials

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NCT ID: NCT05215847 Completed - Obesity Clinical Trials

Study to Evaluate ARD-101 in Adults Receiving Bariatric Surgery

Start date: March 1, 2022
Phase: Phase 2
Study type: Interventional

The purpose of this study is to evaluate safety and efficacy of twice-daily ARD-101 in subjects at least one year after bariatric surgery (sleeve gastrectomy or gastric bypass).

NCT ID: NCT05085769 Completed - Obesity Clinical Trials

Potential Associations Between Alterations in Gut Microbiome and Obesity-related Traits After the Bariatric Surgery

Start date: June 1, 2015
Phase:
Study type: Observational

This study aimed to examine the effects of obesity and bariatric surgery on gut microbiota in a Turkish population, and to contribute to the literature by bringing multi-dimensional parameters including dietary intake, metabolic and inflammatory markers. This case-control study was conducted between June 2015 and August 2019. All participants were followed during the six-month period. Face-to-face interviews and physical examinations were held, and blood and fecal samples were collected at the baseline (M0) and at the end of 3 (M3) and 6 months (M6). Dietary intakes of subjects were assessed using 24-h dietary recall method in each interview and a detailed quantitative food frequency questionnaire that involved 85 food items. Subjects were recruited to the study as three groups: 15 patients who had bariatric surgery as study group, 8 morbidly obese participants who did not have bariatric surgery as control group-1 and 11 participants who were non-obese (lean (n=5) and pre-obese (n=6)) as control group-2. All subjects in the study group had sleeve gastrectomy. Subjects in control groups were selected as age and gender matched with the participants in the study group. Individuals were excluded if (a) they were under 19 or above 65 years old, (b) they had an acute or chronic inflammatory disease, (c) they were diagnosed with infectious diseases, cancer or alcohol addiction, (d) they used antibiotics in last 3 months before the screening.

NCT ID: NCT04972357 Completed - Bariatric Surgery Clinical Trials

Bariatric Procedures and Changes Gastric Passage

BIP
Start date: October 1, 2018
Phase:
Study type: Observational

Gastric emptying measured with scintigraphy in patients after standard Roux-en-Y Gastric Bypass (S-RYGB), Banded-RYGB (B-RYGB) or Extended pouch-RYGB (E-RYGB).

NCT ID: NCT04933305 Completed - Obesity Clinical Trials

Microstructure of Ingestive Behavior and Body Weight Loss After Roux-en-Y Gastric Bypass

Drinkometer
Start date: April 1, 2019
Phase:
Study type: Observational

Studies of appetitive behavior in humans after RYGB have produced ambiguous results. It therefore remains unclear whether there are fundamental shifts in the palatability of high-fat and sugary foods after RYGB or simply a decrease in the appetitive drive to ingest them. Moreover, learning processes may play a role as changes in diet selection progress with time in rats after RYGB. However, direct measures of an altered food selection in humans after RYGB are rare and both the durability of the phenomenon as well as the role of experience for changes in food selection remain elusive.

NCT ID: NCT04932694 Completed - Surgery Clinical Trials

Optimizing Function Outcomes After Bariatric Surgery With Core Stabilization Training: A Randomized Controlled Study

Start date: June 21, 2021
Phase: N/A
Study type: Interventional

Bariatric surgery has been reported to be the most effective treatment option for losing and maintaining body weight and improving comorbidities and mortality associated with morbid obesity. Nevertheless, even though physical activity is recommended to optimize bariatric surgery results. Very little is known, about whether engaging in an exercise program after surgery can provide additional improvement in health outcomes. While to date there are relatively few researches studied the effect of exercise in patients who have undergone bariatric surgery.

NCT ID: NCT04867902 Completed - Bariatric Surgery Clinical Trials

Gaining Optimism After Weight Loss Surgery (GOALS) I

GOALS
Start date: June 29, 2021
Phase: N/A
Study type: Interventional

This study examines the feasibility, acceptability, and preliminary impact of an adapted positive psychology-motivational interviewing (PP-MI) intervention for physical activity among patients who have recently undergone bariatric surgery.

NCT ID: NCT04861961 Completed - Morbid Obesity Clinical Trials

Comparison of Three Hypoabsortive Surgical Techniques for Treatment of Type IV Morbid Obesity

BAR-3
Start date: April 6, 2021
Phase: N/A
Study type: Interventional

Morbid obesity is the first non-traumatic cause of death in the western population and it is also progressively beginning to affect the developing countries. Bariatric surgery provides better results than pharmacological treatments and lifestyle changes, granting a better control of comorbidities. Duodenal switch (DS) has proben to be the most effective surgical treatment for grade IV morbid obesity and its comorbidities. However, it is not widely used due to its technical complexity and the risk of long-term complications. Single Anastomosis Duodenum-Ileal bypass with Sleeve gastrectomy (SADI-S) was concieved in 2007 as a one-anastomosis simplification of DS, intended to diminish the surgical time and postoperative risks. Recently, another simplified hypo-absorptive technique has started to be widely used: the one anastomosis gastric bypass (OAGBP), also called mini-gastric gypass. It consists of a gastric pouch associated with a gastro-jejunal anastomosis in omega (Billroth II). Despite the potential advantages of these emerging surgical techniques (SADI-S and OAGBP), there is no solid evidence on its efficacy for the treatment of grade IV obesity in comparison with DS. Besides, there is also there is a lack of studies reporting on prospective acid and bile reflux after omega digestive reconstructions, suche as "Billroth II-like" (SADI-S) and "Billroth II" (OAGBP). Bile reflux is potentially premalignant condition. This prospective randomized study aims to compare conventional DS with SADI-S and OAGBP. We include all morbidly obese patients with BMI ≥ 50 kg/m2 aged 18 years or more. Exclusion criteria are patients who do not fulfill our preoperative bariatric assessment for surgery and those with contraindications for hypo absorptive or mixed surgery. The main objective of the study is to compare the percentage of excess weight lost at 2 and 5 years after the three different surgical procedures. As a secondary objective, gastroesophageal reflux (GERD) will be compared before and 2 years after surgery, based on GERD symptoms test, gastroscopy and a esophageal pH-impedanciometry in selected patients. Other secondary objectives are comparison of short-term complications, metabolic comorbidities, depositional habit, quality of life and metabolic and nutritional deficiencies at two years of surgery.

NCT ID: NCT04859816 Completed - Bariatric Surgery Clinical Trials

Fat Absorption and Metabolism After Roux-en-Y Gastric Bypass

FAT-BAR
Start date: April 1, 2021
Phase: N/A
Study type: Interventional

Using intravenous and oral administration of stable isotope tracers, we will investigate the importance of altered fat absorption and altered whole body fat metabolism for the reduced postprandial systemic TAG concentrations in non-diabetic patients in weight stable phase after RYGB.

NCT ID: NCT04828408 Completed - Anesthesia Clinical Trials

Diaphragm Functions in Bariatric Surgeries

Start date: March 1, 2019
Phase:
Study type: Observational

Obesity is an important public health problem all over the world, and its prevalence is increasing every year. In obesity, significant changes occur in the mechanical properties of the lungs and chest wall due to fat deposits in the mediastinum and abdominal cavities. Upper abdominal surgical procedures usually cause impairment of respiratory functions by affecting respiratory volume and capacity. The risk of postoperative pulmonary complications increases with the decrease in restrictive capacities, hypoxemia, and increased respiratory work. It may also be due to causes such as diaphragm dysfunction, postoperative pain, and surgical incision.Ultrasonography (USG) is a method accepted for evaluating the normal and pathological conditions of the diaphragm. M-mode is used to evaluate the anatomical and functional disorders of the diaphragm. The diaphragm evaluation is performed with the anterior approach in the supine position and with different respiratory maneuvers (sniffing, deep inspiration, normal inspiration). The aim of the study was to evaluate the diaphragm function by using USG and spirometry methods in patients who underwent bariatric surgery and to investigate the effect of postoperative pain score on diaphragm function.

NCT ID: NCT04788199 Completed - Bariatric Surgery Clinical Trials

Novel Technique in Closure of Mesenteric Defects After Laparoscopic Roux-en-Y Gastric Bypass and Its Effect on Internal Hernia: a Case-control Study

Start date: June 15, 2018
Phase:
Study type: Observational

This study is to investigate the rate of internal hernia after laparoscopic Rox-en-Y gastric bypass when the defects are closed using cyano-acrylate glue.