Revision/Conversion Surgeries After One Anastomosis Gastric Bypass-An Experts' Modified Delphi Consensus.

Purpose: There is a lack of evidence for treatment of some conditions including complication management, suboptimal initial weight loss, recurrent weight gain, or worsening of a significant obesity complication after one anastomosis gastric bypass (OAGB). This study was designed to respond to the existing lack of agreement and to provide a valuable resource for clinicians by employing an expert-modified Delphi consensus method.

Methods: Forty-eight recognized bariatric surgeons from 28 countries participated in the modified Delphi consensus to vote on 64 statements in two rounds.

Effects of bariatric surgery on renal function: a retrospective cohort study comparing one-year outcomes between one-anastomosis gastric bypass and Roux-en-Y gastric bypass.

Background: Evidence on the effect of one-anastomosis gastric bypass (OAGB) on renal function is limited.

Objective: To compare the evolution of estimated renal function observed 1 year after OAGB and Roux-en-Y gastric bypass (RYGB) in individuals with obesity.

Design And Setting: Observational, analytical, and retrospective cohort study.

WEIGHT LOSS AND QUALITY OF LIFE AFTER ONE ANASTOMOSIS GASTRIC BYPASS: A 2-YEAR FOLLOW-UP STUDY.

•One anastomosis gastric bypass (OAGB) led to significant weight loss after 2 years. •OAGB associated was well-succeeded in regards to weight loss in most individuals. •OAGB led to significant improvement of quality of life (QoL) assessed by the BAROS system.

Brazilian national bariatric registry - pilot study.

Introduction: Brazil is a world leader in bariatric surgery. However, the actual number of surgeries performed in the country is still unknown. It is necessary to implement an instrument to monitor the quality of care provided.

Endoscopic and histopathological assessment of individuals undergoing one anastomosis gastric bypass: a 2-year follow-up.

Background: There is much debate over the occurrence of biliary reflux to the gastric pouch after one anastomosis gastric bypass (OAGB) and its potential risks.

Objective: To assess endoscopic and histopathological findings following a standardized protocol of biopsy collection two years after OAGB.

Methods: A historical cohort study was conducted, based on a prospectively collected database, which involved 39 participants who underwent OAGB.

Operative management of acute abdomen after bariatric surgery in the emergency setting: the OBA guidelines.

Background: Patients presenting with acute abdominal pain that occurs after months or years following bariatric surgery may present for assessment and management in the local emergency units. Due to the large variety of surgical bariatric techniques, emergency surgeons have to be aware of the main functional outcomes and long-term surgical complications following the most performed bariatric surgical procedures. The purpose of these evidence-based guidelines is to present a consensus position from members of the WSES in collaboration with IFSO bariatric experienced surgeons, on the management of acute abdomen after bariatric surgery focusing on long-term complications in patients who have undergone laparoscopic sleeve gastrectomy and laparoscopic Roux-en-Y gastric bypass.

Trajectory of NAFLD characteristics after Roux-en-Y gastric bypass: a five-year historical cohort study.

Background: The long-term effects of bariatric surgery on the course of non-alcoholic fatty hepatopathy (NAFLD) are not fully understood.

Objective: To analyze the evolution of NAFLD characteristics through noninvasive markers after Roux-en-Y gastric bypass (RYGB) over a five-year period.

Design And Setting: Historical cohort study; tertiary-level university hospital.

Patient Selection in One Anastomosis/Mini Gastric Bypass-an Expert Modified Delphi Consensus.

Purpose: One anastomosis/mini gastric bypass (OAGB/MGB) is up to date the third most performed obesity and metabolic procedure worldwide, which recently has been endorsed by ASMBS. The main criticisms are the risk of bile reflux, esophageal cancer, and malnutrition. Although IFSO has recognized this procedure, guidance is needed regarding selection criteria.

Correlation Between Anthropometric Measurements and Non-alcoholic Fatty Liver Disease in Individuals With Obesity Undergoing Bariatric Surgery: Cross-Sectional Study.

Background: We hypothesize that non-alcoholic fatty liver disease (NAFLD) may be significantly associated with waist circumference (WC), neck circumference (NC), hip circumference (HC), and waist-to-hip ratio (WHR).

Objectives: To analyze correlations between anthropometric parameters and the occurrence and intensity of NAFLD aspects assessed by histopathological examination in individuals undergoing bariatric surgery.

Methods: This is a cross-sectional study carried out in a tertiary university hospital.

The IFSO Worldwide One Anastomosis Gastric Bypass Survey: Techniques and Outcomes?

Introduction: One anastomosis gastric bypass (OAGB) has become one of the most commonly performed gastric bypass procedures in some countries.

Objectives: To assess how surgeons viewed the OAGB, perceptions, indications, techniques, and outcomes, as well as the incidence of short- and long-term complications and how they were managed worldwide.

Methods: A questionnaire was sent to all IFSO members in all 5 chapters to study the pattern of practice and outcomes of OAGB.

Revisional surgery in severe nutritional complications after bariatric surgical procedures: report of four cases from a single institution and review of the literature.

Introduction: bariatric surgery is currently the only treatment that leads to long-term and sustained weight loss and decreased morbidity and mortality in morbidly obese individuals. Roux-en-Y bypass causes weight loss by restricting food intake associated with reduced intestinal absorption, in addition to multiple endocrine and satiogenic effects. Biliopancreatic diversion promotes weight loss mainly due to poor absorption of the nutrients ingested.

CoViD-19 Pandemic and Bariatric Surgery in Argentina.

Argentina was able to anticipate public health interventions in order to flatten the contagion curve of CoViD-19. Eighty-three surgeons answered an online survey to assess the impact of the pandemic on bariatric surgery (BS) in Argentina. Most of them showed a high economic dependence on BS.

Prevalence and Factors Associated with Hepatic Iron Overload in Obese Individuals Undergoing Bariatric Surgery: a Cross-Sectional Study.

Background: Slight to moderate hepatic iron overload (HIO) can be found in cases of liver disease, including non-alcoholic fatty liver disease (NAFLD), but the mechanism is not completely understood, as well as its relationship with obesity.

Objective: To determine the prevalence of HIO assessed through histopathological examination in obese individuals undergoing bariatric surgery and to identify correlations between this condition and demographic, anthropometric, clinical, laboratory, and NAFLD-related aspects.

Methods: This is a cross-sectional study which enrolled individuals undergoing bariatric surgery from January 2018 to February 2019 at a tertiary university hospital.

The recommendations of the Brazilian College of Surgeons and the Brazilian Bariatric and Metabolic Surgery Societies on the return of bariatric and metabolic operations in geographic regions of the country where the procedures have been allowed by local policies, in the period of COVID-19 pandemic.

Prioritizing surgical procedures aims at facilitating patient's access according to the clinical needs, maximizing access equity, and minimizing the damage from delayed access. Previous categorization of elective bariatric surgery have been adapted to define an objective prioritizing system that reflects those principles for bariatric and metabolic operations. Given the factors that contribute to the morbidity and mortality of obese and type 2 diabetes patients, surgical prioritization should be based on clinical risk stratification.

Gastroesophageal Reflux and Laparoscopic Sleeve Gastrectomy: Results of the First International Consensus Conference.

Background: Gastroesophageal reflux disease (GERD) is probably the main drawback of laparoscopic sleeve gastrectomy (LSG). Herein, we critically discuss the issue and report the results of the first international consensus conference held in Montpellier, France, during June 2019.

Methods: Fifty international bariatric experts from 25 countries convened for 2 days for interactive discussions, and to formulate the most relevant questions by electronically submitting 55 preliminary questions to panelists.

Patients with Schizophrenia Undergoing Gastric Bypass Surgery: a Case Series Study.

Purpose: Obesity affects approximately 45-55% of persons with schizophrenia and is more difficult to manage in these individuals than in the general population, apart from being an additional factor for morbidity and premature mortality. Although bariatric surgery is considered the most effective long-term treatment for severe obesity, there are few reports on the outcomes of this procedure in persons with schizophrenia. This study aimed to evaluate weight loss and psychiatric symptoms in persons with obesity and schizophrenia after bariatric surgery.

Correction to: Endoscopic Argon Plasma Coagulation Vs. Multidisciplinary Evaluation in the Management of Weight Regain after Gastric Bypass Surgery: a Randomized Controlled Trial with SHAM Group.

In the original article the captions for Figs. 1-3 are incorrect.

Does weight gain, throughout 15 years follow-up after Nissen laparoscopic fundoplication, compromise reflux symptoms control?

Background: Gastroesophageal reflux disease is defined by the abnormal presence of gastric content in the esophagus, with 10% incidence in the Western population, being fundoplication one treatment option.

Aim: To evaluate the early (six months) and late (15 years) effectiveness of laparoscopic fundoplication, the long term postoperative weight changes, as well as the impact of weight gain in symptoms control.

Methods: Prospective study of 40 subjects who underwent laparoscopic Nissen's fundoplication.