[Barrett's Esophagus: Update on the Diagnosis and Treatment. Review].

Barrett's esophagus (BE) is the condition in which a metaplastic columnar mucosa predisposed to neoplasia replaces the squamous mucosa of the distal esophagus. The current guidelines recommends that diagnosis requires the finding of intestinal metaplasia (IM) with goblet cells of at least 1 cm in length. BE affects approximately 1% of the general population and up to 14% of patients with gastroesophageal reflux disease (GERD).

Robotic transversus abdominis release using HUGO RAS system: our initial experience.

Background: Transversus abdominis release (TAR) is an effective technique for treating large midline and off-midline hernias. Recent studies have demonstrated that robotic TAR (rTAR) is technically feasible and associated with improved outcomes compared to open surgery. There is no published experience to date describing abdominal wall reconstruction using the novel robotic platform HUGO RAS System (Medtronic®).

Bariatric Surgery Before and After the SARS-CoV-2 Pandemic: a Comparative Study of Cases Before the Onset of the Pandemic in a High-Volume Academic Center.

Introduction: At the beginning of the pandemic, studies showed a higher risk of severe surgical complications and mortality among patients with perioperative SARS-CoV-2 infection, which led to the suspension of elective surgery. Confinement and lockdown measures were shown to be associated with weight gain and less access to medical and surgical care in patients with obesity, with negative health consequences. To evaluate the safety of bariatric surgery during the pandemic, we compared 30-day complications between patients who underwent bariatric surgery immediately before with those who underwent bariatric surgery during the opening phase of the pandemic.

Five-Year Experience Training Surgeons with a Laparoscopic Simulation Training Program for Bariatric Surgery: a Quasi-experimental Design.

Purpose: Nearly 200,000 laparoscopic Roux-en-Y gastric bypass (LRYGB) are performed yearly. Reported learning curves range between 50 and 150, even 500 cases to decrease the operative risk. Simulation programs could accelerate this learning curve safely; however, trainings for LRYGB are scarce.

Midterm Results of the Open and Minimally Invasive Release Technique for the Treatment of Abdominal Wall Hernias in an Academic Center.

Large hernia defects are a challenge for general and specialized hernia surgeons. The release (TAR) technique has revolutionized the treatment of complex hernias since it allows the closure of large midline hernias, as well as hernias in different locations. This study aims to report the experience with the TAR technique and mid-term results in the first 101 patients.

Higher hepatic advanced glycation end products and liver damage markers are associated with nonalcoholic steatohepatitis.

Advanced glycation end products (AGEs) may be associated with nonalcoholic fatty liver disease (NAFLD) from stimulation of oxidative stress, inflammation, and fibrosis. We hypothesized that patients with NAFLD would have a lower concentration of soluble AGEs receptor and higher quantity of serum and liver AGEs and an increase in hepatic smooth muscle actin alpha (α-SMA) and transforming growth factor beta 1 (TGF-β1) compared with a control group. We compared the presence of hepatic and serum AGEs, AGE soluble receptor (sRAGE), and markers associated with hepatic damage between NAFLD patients and controls without disease.

Safety of Bariatric Surgery During the Opening Phase After the First Wave of the COVID-19 Pandemic: Experience at an Academic Center.

Introduction: Increased morbimortality in patients with COVID-19 infection who had undergone surgery has raised concerns about bariatric surgery safety during the current COVID-19 pandemic. Currently, there is scarce literature on safety outcomes after bariatric surgery during the COVID-19 pandemic.

Objectives: To determine the risk of symptomatic COVID-19 infection and associated complications during the first 30 days after bariatric surgery.

[Littoral cell angioma of the spleen. Report of one case].

Splenic vascular neoplasms are the most common form of spleen tumors. Among them, littoral cell angioma is rare and it is frequently an incidental finding in imaging studies. It has no specific clinical, laboratory or imaging findings.

Small bowel obstruction following laparoscopic Roux-en-Y gastric bypass: is it always necessary to operate? A 5-year, high volume center experience.

Purpose: This study aims to describe the incidence, associated factors, etiology, and management of small bowel obstructions following laparoscopic Roux-en-Y gastric bypass (LRYGB).

Methods: A retrospective analysis was conducted between January 15 and December 19 using the surgery database of our hospital. Included LRYGB patients were those that evolved with a prolonged length of stay; readmission; emergency room consult; and re-intervention due to small bowel obstruction (SBO) related symptoms with compatible radiological or intraoperative findings.

Exercise Training to Decrease Ectopic Intermuscular Adipose Tissue in Individuals With Chronic Diseases: A Systematic Review and Meta-Analysis.

Objective: The purpose of this study was to evaluate the effect of exercise training on ectopic fat within skeletal muscle (intermuscular adipose tissue [IMAT]) in adult populations with chronic diseases.

Methods: A literature search was conducted in relevant databases to identify randomized controlled trials (RCTs) from inception. Selected studies examined the effect of aerobic training (AET), resistance training (RT), or combined training (COM) on IMAT as assessed by noninvasive magnetic resonance imagery or computed tomography.

Insulin resistance and liver histopathology in metabolically unhealthy subjects do not correlate with the hepatic abundance of NLRP3 inflammasome nor circulating IL-1β levels.

Introduction: Systemic chronic low-grade inflammation has been linked to insulin resistance (IR) and non-alcoholic steatohepatitis (NASH). NOD-like receptor protein 3 (NLRP3) inflammasome and its final product, interleukin (IL)-1β, exert detrimental effects on insulin sensitivity and promote liver inflammation in murine models. Evidence linking hepatic NLRP3 inflammasome, systemic IR and NASH has been scarcely explored in humans.

Enhanced-view totally extraperitoneal (eTEP) approach for the treatment of abdominal wall hernias: mid-term results.

Introduction: Multiple minimally invasive techniques have been described for ventral hernia repair. The recently described enhanced view totally extraperitoneal (eTEP) ventral hernia repair seems an appealing option since it allows to address midline and lateral hernias, placing the mesh in the retromuscular position without the use of traumatic fixation.

Aim: To report on the mid-term result of a series of patients with ventral hernias repaired by the eTEP approach.

Customized bariatric stents for sleeve gastrectomy leak: are they superior to conventional esophageal stents? A systematic review and proportion meta-analysis.

Objective: Recently, there has been a burgeoning interest in the utilization of customized bariatric stents (CBS) for management of sleeve gastrectomy leak (SGL). We aimed to conduct a proportion meta-analysis to evaluate the cumulative efficacy and safety of these new stents and to compare them with the conventional esophageal stents (CES).

Methods: A systematic literature search of the PubMed, Cochrane Library, Scopus, Web of Science and Google Scholar databases was conducted through May 1, 2020.

Telemedicine for postoperative follow-up, virtual surgical clinics during COVID-19 pandemic.

Unlabelled: Recent coronavirus outbreak and "stay at home" policies have accelerated the implementation of virtual healthcare. Many surgery departments are implementing telemedicine to enhance remote perioperative care. However, concern still arises regarding the safety of this modality in postoperative follow-up after gastrointestinal surgery.

Bariatric Surgery in Cirrhotic Patients: a Matched Case-Control Study.

Introduction: Laparoscopic bariatric surgery (LBS) in liver end-stage organ disease has been proven to improve organ function and patients' symptoms. A series of LBS in patients with cirrhosis have shown good results in weight loss, but increased risk of complications. Current literature is based on clinical series.

Relative lipid oxidation associates directly with mitochondrial fusion phenotype and mitochondria-sarcoplasmic reticulum interactions in human skeletal muscle.

Disturbances in skeletal muscle lipid oxidation might induce ectopic fat deposition and lipotoxicity. Nevertheless, the cellular mechanisms that regulate skeletal muscle lipid oxidation have not been fully determined. We aimed to determine whether there was an association between relative whole body lipid oxidation and mitochondrial size or mitochondria-sarcoplasmic reticulum interactions in the skeletal muscle.

Effect of cholecystectomy on hepatic fat accumulation and insulin resistance in non-obese Hispanic patients: a pilot study.

Background: Nonalcoholic fatty liver disease (NAFLD) is highly prevalent worldwide. Experimental studies have shown that cholecystectomy (XGB) increases hepatic fat content in mice and appears associated to NAFLD in large retrospective population-based studies. The aim of this study was to prospectively assess the effects of XGB on hepatic fat content (HFC) and insulin resistance (IR) in non-obese, middle aged Hispanic subjects.

Safety and efficacy of the endoscopic duodenal-jejunal bypass liner prototype in severe or morbidly obese subjects implanted for up to 3 years.

Background: The duodenal-jejunal bypass liner (DJBL) is an endoscopic device that mimics the duodenal-jejunal exclusion component of the Roux-en-Y gastric bypass. Previous studies assessing the efficacy of the DJBL have shown 10-40% excess weight loss (%EWL) and improvements in obesity-associated comorbidities. The aim of this study was to evaluate the safety and efficacy of a new DJBL prototype over a 3-year period.

Distinct patterns in the gut microbiota after surgical or medical therapy in obese patients.

Bariatric surgery is highly successful in improving health compared to conventional dietary treatments. It has been suggested that the gut microbiota is a relevant factor in weight loss after bariatric surgery. Considering that bariatric procedures cause different rearrangements of the digestive tract, they probably have different effects on the gut microbiota.

Primary leiomyosarcoma of the greater omentum: a case report.

Introduction: Greater omentum leiomyosarcomas are rare tumors with only a few cases reported in literature.

Presentation Of Case: We report the case of a 68-year-old man who consulted complaining of diffuse abdominal pain without a palpable mass at physical examination. Imaging studies revealed a solid-cystic lesion in the right lower quadrant.

Laparoscopic sleeve gastrectomy conversion to Roux-en-Y gastric bypass: experience in 50 patients after 1 to 3 years of follow-up.

Background: Sleeve gastrectomy (SG) is currently one of the most frequently performed bariatric interventions worldwide due to its simplicity and good weight loss results. Nevertheless, SG failure and complications are increasingly being observed as the number of procedures increases.

Objectives: To report our results in converting SG to revisional laparoscopic Roux-en-Y gastric bypass (R-LRYGB).

Bariatric surgery in 1119 patients with preoperative body mass index<35 (kg/m(2)): results at 1 year.

Background: The use of body mass index (BMI) as the only criterion to indicate bariatric surgery is currently under discussion. There is growing evidence that supports bariatric surgery in carefully selected patients with lower BMI.

Objectives: To report our experience in bariatric surgery in>1000 patients with BMI<35 kg/m(2) and their results at 1 year.

Effect of Early Use of Covered Self-Expandable Endoscopic Stent on the Treatment of Postoperative Stapler Line Leaks.

Background: Postoperative leaks are a dreaded complication after bariatric surgery (BS). Its treatment is based on nutritional support and sepsis control by antibiotics, collections drainage and/or prosthesis, and/or surgery.

Objectives: The aim of this study is to report our experience with coated self-expandable endoscopic stents (SEES) for leaks treatment.