EUS-guided tissue acquisition in patients with solid pseudopapillary neoplasms of the pancreas.

Objectives: Endoscopic ultrasound-guided tissue acquisition (EUS-TA) has been the most common method used for the preoperative cytopathological diagnosis of solid tumors of the pancreas. There are only a few reported cases about the role of endoscopic ultrasound-guided fine needle biopsy (EUS-FNB) in the pre-operative diagnosis of solid pseudopapillary neoplasms (SPN). This study aimed to evaluate the diagnostic yield of EUS-TA,including endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) andEUS-FNB, in patients with SPN.

The efficacy and safety of endoscopic sphincterotomy in patients with Sphincter of Oddi dysfunction: a systematic review and meta-analysis.

Objective: Sphincter of Oddi dysfunction (SOD) has been used to describe patients with RUQ abdominal pain without an etiology. We conducted a systematic review and meta-analysis to evaluate the efficacy and safety of ES (endoscopic sphincterotomy) for SOD.

Methods: The study methodology follows the PRISMA guidelines.

Clinical and Endoscopic Differences Between Patients With Barrett's Esophagus With and Without Dysplasia/Adenocarcinoma.

Introduction: Barrett's esophagus (BE) is the main precursor of esophageal adenocarcinoma (EAC). This study aimed to identify the risk factors associated with BE progression to dysplasia or EAC in a Latin population.

Methods: The study is a retrospective analysis of a single-center cohort of patients with BE, evaluated from 2002 to 2012.

Aerosol boxes for airway management in coronavirus disease patients: a clinical retrospective study in Mexico.

Introduction: Significant concerns raise for the healthcare workers involved in airway management of patients diagnosed with coronavirus 2019 disease (COVID-19). Due to shortages of personal protective equipment (PPE), barrier enclosure systems such as aerosol box (AB) have been proposed worldwide. The aim of this study was to evaluate our experience using AB as protective equipment in patients with COVID-19 in a third-level center in Mexico.

Effectiveness for Diagnosis of Malignancy of Bile Pyruvate Kinase M2 in Patients with Indeterminate Biliary Stricture.

Background: Up to 70% of the cases of biliary strictures are cholangiocarcinoma. Cholangiocarcinoma has a late diagnosis and poor outcomes; therefore, effective biomarkers are needed for malignant lesions detection at earlier stages.

Aim: The aim was to assess the diagnostic utility of bile pyruvate kinase M2 (PKM2) as a biomarker for the detection of malignant biliary strictures in patients with an indeterminate biliary stricture.

Patients With Unexplained Dilated Pancreatic Duct Have High Risk of Biliopancreatic Malignancy Detected by EUS.

Introduction: Patients with unexplained dilated common bile duct (CBD) and/or dilated main pancreatic duct (MPD) on noninvasive abdominal imaging tests are often referred for endoscopic ultrasound (EUS) in order to rule out biliopancreatic cancer. The aim of the study was to evaluate the diagnostic yield of EUS in this patient group.

Methods: A prospective study was conducted.

National survey regarding the timing of endoscopic procedures during the COVID-19 pandemic.

Background: During the COVID-19 pandemic, several questions have arisen about which endoscopic procedures (EPs) must be performed and which ones can be postponed. The aim of this study was to conduct a nationwide survey regarding the appropriate timing of EPs during the COVID-19 pandemic.

Methods: This prospective study was performed through a nationwide electronic survey.

EUS-guided biliary drainage in patients with distal malignant biliary obstruction requires fewer interventions and has a lower cost compared to ERCP biliary drainage.

Introduction: Endoscopic retrograde cholangiopancreatography (ERCP) biliary drainage is considered the reference standard in patients with biliary obstruction, but it is not free of complications. EUS-guided biliary drainage (EUS-BD) is considered an alternative in patients with failed ERCP; however, data are scarce as to whether EUS-BD could be considered a first option.

Objective: The aim of our study was to compare the need for reintervention and cost between ERCP biliary drainage vs.

Bleeding from gastrointestinal ectopic varices is not associated with haemorrhage from oesophageal or gastric varices.

Introduction: Ectopic varices are those that appear in a different region of the gastroesophageal junction. Bleeding from ectopic varices is rare but is usually massive and deadly.

Aim: To identify the possible factors that cause bleeding from ectopic varices in patients with portal hypertension.

Prevalence of burnout syndrome in gastroenterologists and endoscopists: results of a national survey in Mexico.

Background: Burnout syndrome (BOS) is characterized by emotional exhaustion, depersonalization and reduced personal accomplishment. It affects doctors, patients and their inter-relationship. There is a lack of data on BOS in Mexico.

A low-residue diet before colonoscopy tends to improve tolerability by patients with no differences in preparation quality: a randomized trial.

Background: The pre-colonoscopy diet traditionally involves 24 h of a clear liquid diet (CLD) in combination with a lavage solution; however, this preparation is poorly tolerated.

Aim: To compare the impact on the quality of bowel cleansing and tolerability of a CLD versus a low-residue diet (LRD).

Methods: We performed a randomized trial.

Analysis of circulating blood and tissue biopsy PDX1 and MSX2 gene expression in patients with pancreatic cancer: A case-control experimental study.

Early diagnosis of pancreatic cancer (PC) is based on endoscopic ultrasound (EUS). However, EUS is invasive and requires a high level of technical skill. Recently, liquid biopsies have achieved the same sensitivity and specificity for the diagnosis of numerous pathologies, including cancer.

Endoscopic Ultrasound in Pediatric Patients With Pancreatobiliary Disease.

Background: Endoscopic ultrasound (EUS) is one of the greatest advances of the last few decades for the diagnostic and therapeutic approach of gastrointestinal diseases in adults. However, there are limitations to the application of the procedure in the pediatric population. The aim of this study was to describe the diagnostic yield and therapeutic role of EUS in pediatric patients with pancreatobiliary disease.

Treatment of gastrointestinal bleeding with hemostatic powder (TC-325): a multicenter study.

Introduction: Hemostatic powder (TC-325) is a new tool for treatment of gastrointestinal bleeding that allows the treatment of large surfaces with active bleeding. The aim was to describe the initial success of TC-325 for the control of GI bleeding.

Materials And Methods: We did a multicenter cohort study with patients admitted to the endoscopy service for GI bleeding.

Biliary Drainage in Patients With Failed ERCP: Percutaneous Versus EUS-guided Drainage.

Aim: The goal of the study is to compare the efficacy and safety of bile duct drains guided by endoscopic ultrasound-guided biliary drainage (EGBD) versus percutaneous transhepatic biliary drainage (PTBD).

Materials And Methods: Retrospective comparative study. Patients with obstruction of the bile duct who underwent the EGBD or PTBD procedure and had at least 1 previous endoscopic retrograde cholangiopancreatography that failed or was inaccessible to the second duodenal portion were included.

Higher adenoma detection rate with the endocuff: a randomized trial.

 Different techniques have been introduced to improve the endoscopist's view and enhance the detection of polyps. The endocuff is a polymer sleeve cap that is connected to the tip of the colonoscope in order to improve visualization of the mucosa during colonoscopy. The aim of the study was to compare adenoma detection rates (ADR) of endocuff-assisted colonoscopy and conventional colonoscopy.

Diagnostic accuracy of nodular gastritis for H. pylori infection.

Background: The term nodular is not included in the Sydney classification and there is no widely accepted histopathological definition. It has been proposed that the presence of antral nodularity could predict Helicobacter pylori (H. pylori) infection.

Repeat endoscopic ultrasound fine needle aspiration after a first negative procedure is useful in pancreatic lesions.

Background And Objectives: There is no consensus about the ideal method for diagnosis in patients who have already undergone endoscopic ultrasound fine needle aspiration (EUS-FNA), and the inconclusive material is often obtained. The aim was to evaluate the diagnostic yield of the second EUS-FNA of pancreatic lesions.

Materials And Methods: A retrospective analysis of prospectively collected data of patients with EUS-FNA of pancreatic lesions is performed.