Endoscopic Submucosal Tunneling Techniques versus Flexible Endoscopic Septotomy for Zenker's Diverticulum: A Systematic Review and Meta-Analysis.

Background And Aims: Zenker's diverticulum (ZD) is the most common type of esophageal diverticulum. We conducted a systematic review and meta-analysis aiming to compare the effectiveness and safety of endoscopic submucosal tunneling techniques (ESTT) and flexible endoscopic septotomy (FES) for treating patients with ZD, including subgroup analyses by follow-up duration (<12 months and ≥12 months), diverticulum size (<2.5cm and ≥2.

III BRAZILIAN CONSENSUS STATEMENT ON ENDOSCOPIC ULTRASOUND.

Background: In the past decades, endoscopic ultrasound has developed from a diagnostic tool to a platform for many therapeutic interventions. Various technological advancements have emerged since the last Brazilian Consensus, demanding a review and update of the recommendations based on the best scientific evidence.

Methods: A group of 32 renowned echoendoscopists selected eight relevant topics to be discussed to generate clinical questions.

High prevalence of functional dyspepsia in nonalcoholic fatty liver disease: a cross-sectional study.

Background: Gastrointestinal (GI) symptoms are frequent complaints from individuals with nonalcoholic fatty liver disease (NAFLD). Dyspepsia is a universal clinical symptom and is among the most common GI complaints observed in the general population, but its prevalence in the population with NAFLD has not been previously investigated.

Objective: To compare the prevalence of functional dyspepsia (FD) between patients with NAFLD and controls without liver disease.

Underwater endoscopic mucosal resection of adenomas and colorectal serrated lesions: a prospective clinical study.

Background: Underwater endoscopic mucosal resection (UEMR) without submucosal injection has been described as an alternative technique to the endoscopic resection of adenomas and colorectal serrated lesions. We aimed to assess the feasibility, safety, and efficacy of UEMR in a Brazilian setting.

Methods: This was a prospective observational study of consecutive patients who underwent UEMR between January and July 2019, in a single tertiary care center.

Endoscopic clipping for gastrointestinal bleeding: emergency and prophylactic indications.

Endoscopic clipping has become a common practice among endoscopists. Several models are available, most frequently being introduced via the working channel of the endoscope (through-the-scope); however, larger clips can also be mounted onto the distal tip of the endoscope (over-the-scope). The main indications for endoclip placement include providing effective mechanical hemostasis for bleeding lesions and allowing endoscopic closure of gastrointestinal perforations.

Does a history of head and neck cancer affect outcome of endoscopic submucosal dissection for superficial esophageal squamous cell carcinoma?

Esophageal squamous cell carcinoma (ESCC) is the most common secondary tumor in patients with head and neck squamous cell cancer (HNSCC). Currently, endoscopic submucosal dissection (ESD) is the preferred approach to manage superficial ESCC, however, it remains to be elucidated whether patients with HNSCC and early ESCC managed by ESD have different outcomes. We retrospectively analyzed esophageal ESD for early ESCC from September 2009 to September 2017 and the following variables: demographics, tumor and specimen size, Paris classification, location, en bloc and R0 resection rates, overall survival (OS) and adverse events (AEs).

Impact of coronavirus pandemic crisis in endoscopic clinical practice: Results from a national survey in Brazil.

In March 2020, the World Health Organization declared coronavirus disease of 2019 (COVID-19) as a pandemic, mobilizing all countries to contain the disease spread. Activity in endoscopy centers globally was severely affected. We conducted a national survey aiming to assess the impact of the COVID-19 outbreak on endoscopic clinical practice in Brazil.

Feasibility of transnasal endoscopy in screening for esophageal and gastric varices in patients with chronic liver disease.

Background And Study Aims:  Screening for esophageal and gastric varices is indicated for patients with portal hypertension or cirrhosis. Typically, conventional endoscopy is used; however, the need for sedation increases the costs and risks, especially in cirrhotic patients. Use of transnasal endoscopy with an ultrathin endoscope enables study of the upper gastrointestinal tract without the need for sedation.

Helicobacter pylori and t(11;18)(q21;q21) translocation in gastric malt lymphoma.

Context: Gastric mucosa-associated lymphoid tissue (MALT) lymphoma is clearly associated with Helicobacter pylori gastritis and can be cured with anti- H pylori therapy alone. The presence of t(11;18)(q21;q21) translocation is thought to predict a lower response rate to anti- H pylori treatment.

Objectives: To study the presence of t(11;18)(q21;q21) genetic translocation and its clinical impact in low-grade gastric MALT lymphoma Brazilian patients.

Complementation by argon plasma coagulation after endoscopic piecemeal resection of large colorectal adenomas.

Objective: To evaluate the efficacy of complement by argon plasma coagulation to reduce the rate of residual or recurrent tumor after complete endoscopic piecemeal resection of large sessile colorectal adenomas.

Inclusion Criteria: patients with large sessile colorectal adenomas (e" 20 mm), without morphological signs of deep infiltration, submitted to complete endoscopic piecemeal resection studied with chromoendoscopy and magnification of images. Patients were randomized into two groups: group 1 - no additional procedure, and group 2 - complementation by argon plasma coagulation.