Short-medium term complications of bariatric surgery: a pilot study.

Background: Bariatric surgery (BS) stands as a highly effective intervention for severe obesity; however, limited understanding exists regarding its short to medium-term complications. This study aimed to analyze short-medium term complications in patients undergoing BS in an Ecuadorian hospital.

Methods: A retrospective cohort study included 1132 patients who underwent BS between October 2021 and April 2022, specifically evaluating those with complications needing hospital readmission.

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.

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.

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.

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.

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.

Weight Loss and Vomiting 1 Year After Banded Versus Non-banded One Anastomosis Gastric Bypass: a Prospective Randomized Trial.

Background: The weight loss outcomes after banded one-anastomosis gastric bypass (OAGB) remain to be determined.

Objective: To compare weight loss and vomiting 1 year after banded versus non-banded OAGB.

Methods: This is a prospective, open-label, randomized study, which evaluated 33 individuals with morbid obesity, which underwent banded (16 individuals) and non-banded OAGB (17 individuals) and were followed up for 12 months.

EARLY WEIGHT LOSS OUTCOMES AND GLUCOSE METABOLISM PARAMETERS AFTER BANDED VERSUS NON-BANDED ONE ANASTOMOSIS GASTRIC BYPASS: A PROSPECTIVE RANDOMIZED TRIAL.

Background: The influence of the placement of a band on the outcomes of one anastomosis gastric bypass (OAGB) has not been appropriately studied yet.

Objective: To compare early weight loss and glucose metabolism parameters following banded versus non-banded OAGB.

Methods: A prospective randomized study, which evaluated 20 morbidly obese individuals who underwent banded and non-banded OAGB and were followed-up for three months.

Bariatric Surgery Offer in Brazil: a Macroeconomic Analysis of the Health system's Inequalities.

Background: Brazil currently holds the second place in the worldwide ranking of the largest number of bariatric surgical procedures performed. The offer of bariatric surgery in the public health system is not sufficient for its demand; it remains to be determined whether the recent economic downturn affected this offer.

Objective: To analyze the proportion of bariatric surgeries performed by the public system in Brazil and assess the influence of macroeconomic variables over time.

Nationwide Macroeconomic Variables and the Growth Rate of Bariatric Surgeries in Brazil.

Background: The effect of nationwide economic issues on the necessary expansion in the number of bariatric procedures remains unclear.

Objective: This study aims to determine whether there are correlations between the growth rate in the number of bariatric surgeries and the major macroeconomic variables over time in Brazil.

Methods: It is a nationwide analysis regarding the number of bariatric surgeries in Brazil and the main national macroeconomic variables from 2003 through 2016: gross domestic product (GDP), inflation rate, and the unemployment rate, as well as the evolution in the number of registered bariatric surgeons.

Live surgery courses: retrospective safety analysis after 11 editions.

Introduction: Live surgery is a topic of interest at every meeting or course in the field of surgery. The potential of laparoscopy for live broadcasting makes it an excellent tool in continuing medical education. Surgeons who participate in live surgeries are usually experienced, but several conditions may influence the results and safety of a procedure.

FUNDOPLICATION CONVERSION IN ROUX-EN-Y GASTRIC BYPASS FOR CONTROL OF OBESITY AND GASTROESOPHAGEAL REFLUX: SYSTEMATIC REVIEW.

Introduction: Obesity is related with higher incidence of gastroesophageal reflux disease. Antireflux surgery has inadequate results when associated with obesity, due to migration and/or subsequent disruption of antireflux wrap. Gastric bypass, meanwhile, provides good control of gastroesophageal reflux.

MINI-GASTRIC BYPASS: DESCRIPTION OF THE TECHNIQUE AND PRELIMINARY RESULTS.

Background: In recent years, a surgical technique known as single-anastomosis gastric bypass or mini-gastric bypass has been developed. Its frequency of performance has increased considerably in the current decade.

Aim: To describe the mini-gastric bypass technique, its implementation and preliminary results in a university hospital.

A Prospective Single-Arm Trial of Modified Long Biliopancreatic and Short Alimentary Limbs Roux-En-Y Gastric Bypass in Type 2 Diabetes Patients with Mild Obesity.

Background: Type-2 diabetes (T2D) patients with body mass index (BMI) below 35 kg/m carry lower remission rates than severely obese T2D individuals submitted to "standard limb lengths" Roux-en-Y gastric bypass (RYGB). Mild-obese patients appear to have more severe forms of T2D, where the mechanisms of glycemic control after a standard-RYGB may be insufficient. The elongation of the biliopancreatic limb may lead to greater stimulation of the distal intestine, alterations in bile acids and intestinal microbiota, among other mechanisms, leading to better metabolic outcomes.

The Role of Gastrojejunostomy Size on Gastric Bypass Weight Loss.

Background: The laparoscopic Roux-en-Y gastric bypass (LRYGB) has been considered a reference procedure in the bariatric surgery. The linear-stapled gastrojejunostomy (GJ) has proved to be safe and effective, but its optimal size referred to postoperative weight loss remains poorly understood.

Objectives: Evaluate the role of the linear-stapled GJ size in the mid-term post-LRYGB weight loss and occurrence of complications.

SADI-S WITH RIGHT GASTRIC ARTERY LIGATION: TECHNICAL SYSTEMATIZATION AND EARLY RESULTS.

Background: Bariatric surgery is performed all over the world with close to 500.000 procedures per year. The most performed techniques are Roux-en-Y gastric bypass and sleeve gastrectomy.

INTESTINAL MALROTATION IN PATIENTS UNDERGOING BARIATRIC SURGERY.

Background: Intestinal malrotation is a rare congenital anomaly. In adults is very difficult to recognize due to the lack of symptoms. Diagnosis is usually incidental during surgical procedures or at autopsy.

FIXING JEJUNAL MANEUVER TO PREVENT PETERSEN HERNIA IN GASTRIC BYPASS.

Background: Among Roux-en-Y gastric bypass complications is the occurrence of intestinal obstruction by the appearance of internal hernias, which may occur in Petersen space or the opening in mesenteric enteroenteroanastomosis.

Aim: To evaluate the efficiency and safety in performing a fixing jejunal maneuver in the transverse mesocolon to prevent internal hernia formation in Petersen space.

Method: Two surgical points between the jejunum and the transverse mesocolon, being 5 cm and 10 cm from duodenojejunal angle are made.