Impact of pre-operative weight loss on non-alcoholic fatty liver disease histopathology and insulin resistance in individuals undergoing bariatric surgery: a propensity matched cross-sectional comparison.

Background: The effect of weight loss (WL) on histopathological aspects of non-alcoholic fatty liver disease (NAFLD) may provide further insights into the dynamics of hepatic recovery after WL.

Objective: To analyze the effects of pre-operative WL on insulin resistance- and NAFLD-related histology in individuals undergoing bariatric surgery (BS) with or without pre-operative WL.

Design And Setting: A matched cross-sectional study was conducted at a public university hospital and a private clinic in Campinas, Brazil.

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.

Relationships of hepatic histopathological findings and bile microbiological aspects with bile duct injury repair surgical outcomes: A historical cohort.

Backgrounds/aims: To analyze relationships of hepatic histopathological findings and bile microbiological profiles with perioperative outcomes and risk of late biliary stricture in individuals undergoing surgical bile duct injury (BDI) repair.

Methods: A historical cohort study was carried out at a tertiary university hospital. Fifty-six individuals who underwent surgical BDI repair from 2014-2018 with a minimal follow-up of 24 months were enrolled.

Roux-en-Y Gastric Bypass as a Treatment for Hepatic Iron Overload: An Exploratory Study.

Background: Excess bodily iron content is commonly associated with obesity and metabolic associated medical conditions and is thought to lead to cardiovascular disease. The effect of Roux-en-Y gastric bypass (RYGB) on hepatic iron overload remains to be determined.

Objective: To assess the evolution of histologically proven hepatic iron overload after RYGB.

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.

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.

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.

PANCREATICODUODENECTOMY WITH VENOUS RESECTION: AN ANALYSIS OF 30-DAY MORBIDITY AND MORTALITY.

Background: Pancreaticoduodenectomy (PD) with the resection of venous structures adjacent to the pancreatic head, even in cases of extensive invasion, has been practiced in recent years, but its perioperative morbidity and mortality are not completely determined.

Objective: To describe the perioperative outcomes of PD with venous resections performed at a tertiary university hospital.

Methods: A retrospective study was conducted, classified as a historical cohort, enrolling 39 individuals which underwent PD with venous resection from 2000 through 2016.

Influence of post-Roux-en-Y gastric bypass weight recidivism on insulin resistance: a 3-year follow-up.

Background: Although some early metabolic benefits provided by bariatric surgery are known to occur regardless of weight loss, the impact of mid- to long-term weight recidivism after Roux-en-Y gastric bypass (RYGB) on metabolic outcomes is not profoundly understood.

Objective: To investigate the effect of weight recidivism on insulin resistance among nondiabetic individuals with morbid obesity after RYGB during a 3-year follow-up.

Setting: Public tertiary university hospital.