Christian Méndez

ORCID: 0000-0002-4309-3628
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About
Contact & Profiles
Research Areas
  • Liver Disease Diagnosis and Treatment
  • Liver Disease and Transplantation
  • Gastrointestinal disorders and treatments
  • Gastrointestinal Bleeding Diagnosis and Treatment
  • Gastroesophageal reflux and treatments
  • Alcohol Consumption and Health Effects
  • Esophageal and GI Pathology
  • Pancreatitis Pathology and Treatment
  • Urban, Neighborhood, and Segregation Studies
  • Cardiovascular and exercise physiology
  • Abdominal vascular conditions and treatments
  • Parasites and Host Interactions
  • Gastrointestinal motility and disorders
  • Coenzyme Q10 studies and effects
  • Gastrointestinal Tumor Research and Treatment
  • Hepatitis Viruses Studies and Epidemiology
  • Colorectal Cancer Surgical Treatments
  • Parasitic Infections and Diagnostics
  • Diabetes Treatment and Management
  • Migration, Health and Trauma
  • Infectious Aortic and Vascular Conditions
  • Non-Invasive Vital Sign Monitoring
  • Kawasaki Disease and Coronary Complications
  • Intestinal and Peritoneal Adhesions
  • Esophageal Cancer Research and Treatment

Grand Valley State University
2024

Universidad del Valle
2023

St. Luke's Episcopal Hospital
2022

Bangladesh Medical Association of North America
2022

College of New Jersey
2020-2021

Hospital San Juan de Dios
2018

University of Louisville
2001-2013

The University of Texas Southwestern Medical Center
2010

A prospective randomized trial involving 64 patients with bleeding peptic ulcers was performed to assess the efficacy of two modalities injection therapy. The inclusion criterion presence active or a visible vessel at emergency endoscopy. Thirty-two were treated epinephrine (Group A) and 32 plus thrombin B). Permanent hemostasis achieved in 81.3 % Group A, 84.4 B patients, therapy failures occurred 18.6 15.6 %, respectively. Mortality nil both groups. There no differences requirement for...

10.1055/s-2007-1012828 article EN Endoscopy 1990-07-01

The objective of this study was to analyse the survival rate and cause death in children with systemic lupus erythematosus (SLE) during past 30 years Chile. A retrospective analysis performed between 1969 2000 on patients attending pediatric rheumatology centres Santiago, Survival causes 31 followed from 1980 fulfilling 1982 American College Rheumatology criteria for SLE treated oral steroids were compared 50 other who an aggressive treatment IV bolus cyclophosphamide (38 patients)...

10.1191/0961203303lu2183xx article EN Lupus 2005-11-01

Esophago-gastro-duodenoscopy (EGD) is frequently performed in patients with heartburn. However, the benefit of an EGD unclear. The objective to determine clinical impact performing management GERD.Patients alarm symptoms or persistent heartburn from primary care and gastroenterology clinics were invited participate. Patients known reflux complications procedure within 3 yr excluded. Endpoints for EGD-improving prospectively defined: change medical therapy, dilating esophageal stricture,...

10.1111/j.1572-0241.2004.40502.x article EN The American Journal of Gastroenterology 2004-11-30
Nicolás Avellaneda Sebastian Valdivieso Fabio Leiro Marcos González Marcelo Viola and 95 more Helio Moreira Reinaldo Isaacs Beron Eddy P. Licango-Naranjo Augusto Carrie Gianluca Pellino Antonino Spinelli Antonio Caycedo-Marulanda Mateo Santillán Delfina Berasategui C. J. Mayne M. Brun Diana Alejandra Pantoja Pachajoa Matías Parodi Rosario Martiarena Sergio Schlain Camila Bras Harriott Nicolás A. Rotholtz Maximiliano Bun Analia Potolicchio Yenny Quiroga Federico Carballo P Farina Carlos Vaccaro Marcos González Simón Sedziszow Gaston Ortigueira T. Seip Oscar D Brosutti María Soledad Cian Fabio O. Leiro Romina Bianchi Julieta Yanet Espino Campagna Mariela Cedermas Pablo Arbios Agustín Alesandrini Juan Perriello Javier Ignacio Villaggi F Reinoso Barbero Juan Manuel Giordanino Gustavo Nari Juan Pablo Flórez Muñoz Natalia Mira Gesto Federico Medina Javier Santiago Minoldo G. Zanoni C. Lucas D.L. Nielsen Juan Manuel Sotelo Alvaro Leone Federico Posner D. Barletta Christian Méndez Rogerio Serafim Parra Fábio Lopes de Queiroz Daniel Maurício Londoño Estrada Rômulo Medeiros de Almeida João Batista de Sousa Bruno Augusto Alves Martins Marcela Maria Silvino Craveiro Rogério Saad-Hossne A. Zamorano Alejandro Escobar Carlos Yáñez Benedicto Misael Ocares Urzua Francisco Xavier Báez Rojas T. Rivas Felipe Bellolio Roth Daniel Miranda Christophe Riquoir Altamirano Andrés Iglesias Bettini Nelson Niño Puentes Mònica Morales Juan Camilo Correa Cote Gustavo A. Yepes López Daniela Sierra Castaño M Dorado A. Díaz V. Cao José Carlos Pereira Rosana María Babilonia Yepes Cristina Judith Padilla Herrera Laura Svidler López Maikel Pacheco Javier Ernesto Barreras González Jorge Gerardo Pereira Fraga Rafael Torres Peña Miguel Ángel Martínez Alfonso Renato Salvador Francisco David Rivadeneira Proaño Javier López-Gómez Almudena Layos-Romero Mario Alberto López Ramírez Pablo Zeron Pontones Ismael Brito Toledo Michel Hernández Valadez

Abstract Introduction Rectal cancer is a prevalent disease that requires multidisciplinary management. Results of treatment patients suffering from this malignancy in Latin America have been scarcely reported before. Methods A retrospective, multicenter study was conducted to report preoperative and operative characteristics intervened for rectal centers during 2015–2022, the short-term results were analyzed. The open any center receiving patients, irrespective volume. main outcome 30-day...

10.1007/s00384-024-04763-z article EN cc-by International Journal of Colorectal Disease 2024-12-23

Barrett's esophagus is the transformation of normal esophageal squamous epithelium to specialized intestinal metaplasia (SIM). Among cells, those that can develop protective mechanisms against apoptosis may have potential become malignant. Studies shown overexpression metallothionein (MT), low molecular protein protects cells from apoptotic stimuli, appears be associated with more advanced, highly malignant tumors. We thus investigated relationship between MT expression and in different...

10.1177/153537020322800307 article EN Experimental Biology and Medicine 2003-03-01

An equation that uses heart rate index (HRI) defined as HR/HRrest to predict oxygen uptake (VO2) in METs (e.g., = 6 × HRI - 5) has been developed retrospectively from aggregate data of 60 published studies. However, the prediction error this model used by an individual not established. Therefore, purpose study was examine predictive validity comparing submaximal and maximal VO2 predicted (VO2-Pred) with measured indirect calorimetry (VO2-Meas). Sixty healthy adults (age 20.5 ± 2.4 yr., body...

10.70252/thpw3818 article EN cc-by-nd International journal of exercise science 2020-01-01

Purpose: Objective: To describe a case of terminal ileal lipoma as rare cause gastrointestinal bleeding. Case presentation: A 59-year-old man was admitted with one day history hematochezia preceded by 2 days black tarry stools. His medical included diabetes mellitus, hypertension, peripheral vascular disease and coronary artery stent placement requiring chronic anti-platelet therapy. He denied abdominal surgeries or recent trauma. On physical examination, the patient hemodynamically stable...

10.14309/00000434-201010001-00715 article EN The American Journal of Gastroenterology 2010-10-01

Purpose: Variceal bleeding is one of the leading causes mortality in patients with portal hypertension. Although development and from gastroesophageal varices occurs commonly this patient population, ectopic at other gastrointestinal sites unusual. Here we present two cases fatal hemorrhage ruptured duodenal varices, both setting cirrhosis Both patients, a 27-year-old Caucasian 54-year-old African American male, had history chronic liver disease secondary to hepatitis C infection alcohol...

10.14309/00000434-201110002-00628 article EN The American Journal of Gastroenterology 2011-10-01

Purpose: Aortic graft enteric fistula is a rare but potentially catastrophic complication of aortic reconstructive surgery. Due to screening for and the increasing incidence elective repair abdominal aneurysms, secondary aortoenteric fistulas are becoming more common. A prompt diagnosis intervention this condition paramount patient survival. We present case 75 year old Caucasian male who presented emergency department with an episode hematochezia three weeks after undergoing open placement...

10.14309/00000434-201110002-00867 article EN The American Journal of Gastroenterology 2011-10-01

Introducción. Un examen médico forense oportuno y de alta calidad puede potencialmente validar abordar el delito. Objetivos. Evaluar cumplimiento los criterios forenses del protocolo modelo atención integral en salud para víctimas agresión sexual según la Resolución 0459 2012 cuatro hospitales suroccidente Colombia. Metodología. Estudio descriptivo retrospectivo, se diseñó una lista chequeo con base evaluar proceso las instituciones hospitalarias baja mediana complejidad. Se realizó un...

10.22490/24629448.6917 article ES cc-by-nc-nd Nova 2023-05-01

Purpose: Patients with common variable immunodeficiency (CVID) are prone to bacterial infections because of defective antibody production and decreased serum immunoglobulins [1]. In patients CVID, giardiasis may cause enterocyte damage, subtotal villous atrophy development a nodular mucosa [2]. Presentation: 60-year-old male past medical history diabetes immune deficiency was referred for the evaluation chronic intermittent abdominal pain, bloating, diarrhea constipation. He denied any...

10.14309/00000434-201010001-00685 article EN The American Journal of Gastroenterology 2010-10-01

Purpose: Objective: To present a case of endometriosis as rare cause small bowel obstruction. Case presentation: A 34-year-old Caucasian female presented with 6-week history intermittent and sharp periumbilical abdominal pain associated nausea vomiting. The symptoms were not related to her menstrual cycles. She denied any fever weight loss no melena, hematemesis or hematochezia. On examination, abdomen was mildly distended diffusely tender palpation rebound tenderness guarding. Rectal...

10.14309/00000434-201010001-00712 article EN The American Journal of Gastroenterology 2010-10-01

Purpose: Introduction: Gastric antral vascular ectasia (GAVE) is a rare disorder causing up to 4% of non-variceal upper GI bleeds. Presentation: A 78 year old male with past history gastritis, hepatitis C and COPD was sent by his physician for evaluation iron deficiency anemia. He complained intermittent melena 2 years, increased in frequency over months shortness breath on exertion. had an EGD colonoscopy 1 ago the above symptoms which showed gastritis. got capsule endoscopy 6 normal....

10.14309/00000434-200910003-00577 article EN The American Journal of Gastroenterology 2009-10-01

Purpose: Introduction: Splenic pseudoaneurysm (SPA) is rare but important arterial complication associated with chronic pancreatitis because of its proximity to pancreas. Presentation: A 42-year old female a history secondary alcohol abuse and pancreatic pseudocyst percutaneously drained in 2000 presented one-day hematochezia, hematemesis left sided abdominal pain. She denied use non-steroidal anti-inflammatory medications or alcohol. An esophagogastroduodenoscopy done 2 weeks prior this...

10.14309/00000434-200910003-00917 article EN The American Journal of Gastroenterology 2009-10-01

Purpose: Introduction: Hookworm infection is caused by a nematode parasite and transmitted contact with contaminated soil. It can cause iron deficiency anemia, abdominal pain eosinophilia usually diagnosed stool studies. Presentation: 27 year old male immigrant from Thailand presented severe epigastric pain, nausea, vomiting, decreased appetite, dizziness insomnia secondary to for 4 days. He reported 20 pound weight loss in one complained of intermittent fatigue years which he was prescribed...

10.14309/00000434-200910003-00710 article EN The American Journal of Gastroenterology 2009-10-01

Aims & Objectives: Critical patients often require a central venous catheter (CVC), there is experience in USG cannulation of the jugular and femoral vein, use has allowed advent new puncture sites such as: axillary, infraclavicular supraclavicular vein puncture; latter emerged as real alternative with growing published data. To describe our access by ultrasound through route newborns children. determine success failure rate: first, second third attempts. Describe complications. Methods...

10.1097/01.pcc.0000537780.09594.1c article EN Pediatric Critical Care Medicine 2018-05-31
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