Félix I. Téllez‐Ávila

ORCID: 0000-0002-6667-023X
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About
Contact & Profiles
Research Areas
  • Gastrointestinal disorders and treatments
  • Pancreatic and Hepatic Oncology Research
  • Gallbladder and Bile Duct Disorders
  • Pancreatitis Pathology and Treatment
  • Esophageal and GI Pathology
  • Liver Disease Diagnosis and Treatment
  • Colorectal Cancer Screening and Detection
  • Pediatric Hepatobiliary Diseases and Treatments
  • Gastric Cancer Management and Outcomes
  • Liver Disease and Transplantation
  • Helicobacter pylori-related gastroenterology studies
  • Biliary and Gastrointestinal Fistulas
  • Neuroendocrine Tumor Research Advances
  • Gastrointestinal Tumor Research and Treatment
  • Esophageal Cancer Research and Treatment
  • Gastrointestinal Bleeding Diagnosis and Treatment
  • COVID-19 and healthcare impacts
  • Eosinophilic Esophagitis
  • Health and Medical Education
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Hepatocellular Carcinoma Treatment and Prognosis
  • Infection Control and Ventilation
  • Diet, Metabolism, and Disease
  • Amoebic Infections and Treatments
  • Gastroesophageal reflux and treatments

University of Arkansas for Medical Sciences
2022-2025

Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán
2014-2023

Amsterdam University Medical Centers
2021

University of Amsterdam
2021

Centre Hospitalier Régional et Universitaire de Nancy
2020

Pancreas Centre (Canada)
2019

Dirección de Investigación y Desarrollo
2019

American Society for Gastrointestinal Endoscopy
2010-2018

Hospital Médica Sur
2015

Universidad Nacional Autónoma de México
2009-2010

A total of 11 prospective cases endoscopic ultrasound (EUS)-guided cholangio-drainage (EUCD) in patients with end-stage biliopancreatic cancer and biliary tract obstruction are reported. Other available drainage methods (endoscopic retrograde cholangiopancreatography and/or percutaneous transhepatic drainage) the were attempted without success prior to EUS. Technical clinical was achieved 10/11 (91 %) 9/10 (90 %), respectively. Bilirubin decreased by more than 50 % 7/11 (64 %). One patient...

10.1055/s-0030-1256406 article EN Endoscopy 2011-08-10

Introduction: Disconnected pancreatic duct syndrome (DPDS) is defined as the complete disruption of main duct, result are peripancreatic fluid collections or leaks. The aim this study was to report results derivative endoscopic treatment DPDS in a long-term follow-up period. Patients and Methods: We performed retrospective analysis prospectively collected data. Endoscopic consisted transmural drainage with 2 double pigtail plastic stents (7 F 4 cm) deployed under ultrasound guidance....

10.1097/mcg.0000000000000754 article EN Journal of Clinical Gastroenterology 2016-11-08

Abstract Background and study aim Different techniques have been introduced to improve the endoscopist’s view enhance detection of polyps. The endocuff is a polymer sleeve cap that connected tip colonoscope in order visualization mucosa during colonoscopy. was compare adenoma rates (ADR) endocuff-assisted colonoscopy conventional Patients methods 50 years or older were randomized into two groups: an group without endocuff. Results A total 337 patients included: 174 163 group. median age 61...

10.1055/s-0043-117879 article EN Endoscopy 2017-09-12

AIM:To evaluate the prevalence of metabolic syndrome (MS), obesity and type 2 diabetes mellitus (T2DM) in a group Mexican Mestizo patients with cryptogenic cirrhosis (CC) to compare this secondary other causes (disease controls).METHODS: Patients CC, diagnosed between January, 1990 April, 2005, were included retrospective study.Patients caused by chronic hepatitis C, alcohol abuse or autoimmune (AIH) served as disease controls.RESULTS: A total 134 CC analyzed.Disease controls consisted 81 33...

10.3748/wjg.14.4771 article EN cc-by-nc World Journal of Gastroenterology 2008-01-01

Postoperative fluid collections (POFC) have high mortality. Percutaneous drainage (PD) is the preferred treatment modality. Drainage guided by endoscopic ultrasound (EUS-GD) represents a good alternative. The aim of present study was to compare clinical success and complication rates EUS-GD versus PD.Data collected prospectively were analyzed in retrospective manner. Patients with POFC from October 2008 November 2013 included. All drained percutaneously or EUS-GD.Sixty-three procedures 43...

10.1111/den.12475 article EN Digestive Endoscopy 2015-03-24

Background and study aims: There have been reports, mainly retrospective, of pancreatitis hyperamylasemia after anterograde double-balloon enteroscopy (DBE). Our aim was to report the incidence DBE investigate possible risk factors associated with its occurrence.

10.1055/s-0030-1256473 article EN Endoscopy 2011-05-30

To evaluate the accuracy of endoscopic ultrasound (EUS) to determine vascular invasion in patients with pancreatic cancer.Data were obtained prospectively from a lesion who underwent EUS, computed tomographic (CT) imaging, and surgery March 2005 2010.Fifty included mean ± SD age 61 11.5 years; 27 (54%) women. The sensitivity, specificity, positive predictive value, negative value for EUS following: 61.1 (95% CI, 38.6-79.7), 90.3 75.1-96.7), 78.6 52.4-92.4), 80 64.1-90), respectively. area...

10.1097/mpa.0b013e31823e3632 article EN Pancreas 2012-03-28

Background: The term nodular is not included in the Sydney classification and there no widely accepted histopathological definition. It has been proposed that presence of antral nodularity could predict Helicobacter pylori (H. pylori) infection. aim this study was to determine diagnostic accuracy gastritis (NG) for H. infection after a rigorous standardization process, describe associated characteristics. Materials methods: Endoscopic images patients submitted endoscopy with biopsy sampling...

10.2147/tcrm.s121735 article EN cc-by-nc Therapeutics and Clinical Risk Management 2016-12-01

Aim: The goal of the study is to compare efficacy and safety bile duct drains guided by endoscopic ultrasound-guided biliary drainage (EGBD) versus percutaneous transhepatic (PTBD). Materials Methods: Retrospective comparative study. Patients with obstruction who underwent EGBD or PTBD procedure had at least 1 previous retrograde cholangiopancreatography that failed was inaccessible second duodenal portion were included. Results: A total 90 patients initially evaluated 28 excluded. There 39...

10.1097/sle.0000000000000528 article EN Surgical Laparoscopy Endoscopy & Percutaneous Techniques 2018-04-23

Background and Aim To compare the efficacy tolerability of a low‐volume (2‐ L ) polyethylene glycol ( PEG regimen for colonoscopy compared to single (4‐ or split‐dose + 2‐ regimens. Methods In‐hospital patients who were candidates randomly assigned to: group 1 single‐dose 4 day before study, n = 60); 2: (2 2 on procedure, 61); 3: solution (the 59). A blinded evaluation quality colonic preparation was assessed by B oston bowel scale. Results Satisfactory right colon more frequently reported 3...

10.1111/den.12265 article EN Digestive Endoscopy 2014-03-20

Objectives Endoscopic ultrasound-guided tissueacquisition (EUS-TA) has been the most common method used for preoperativecytopathological diagnosis of solid tumors pancreas. There are only afew reported cases about role endoscopic fine needlebiopsy (EUS-FNB) in pre-operative pseudopapillaryneoplasms (SPN). This study aimed to evaluate diagnostic yield EUS-TA,including needle aspiration (EUS-FNA) andEUS-FNB, patients with SPN.

10.1080/00325481.2024.2313446 article EN Postgraduate Medicine 2024-01-02

The objective of this study is to compare the efficacy central (single) vs bilateral (2-injections) endoscopic ultrasound (EUS)-celiac plexus neurolysis (CPN) for palliation patients with pain related pancreatic cancer.Patients unresectable cancer were included. Central EUS CPN was used in first group and second. measurement made a visual analog scale (VAPS) applied before after procedure. Follow-up at weeks 2 4 use morphine evaluated. Complications procedure recorded.A total 53 underwent...

10.7178/eus.06.007 article EN PubMed 2013-07-01
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