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Manzo-Francisco LA, Aquino-Matus J, Vidaña-Pérez D, Uribe M, Chavez-Tapia N. Systematic review and meta-analysis: Transient elastography compared to liver biopsy for staging of liver fibrosis in primary biliary cholangitis. Ann Hepatol 2023; 28:101107. [PMID: 37088420 DOI: 10.1016/j.aohep.2023.101107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/11/2023] [Accepted: 04/14/2023] [Indexed: 04/25/2023]
Abstract
INTRODUCTION AND OBJECTIVES Primary biliary cholangitis (PBC) is an autoimmune liver disease, with 60% of patients being asymptomatic at diagnosis and 30% progressing rapidly into liver fibrosis. Liver biopsy is standard for staging fibrosis, but performance of non-invasive methods such as transient elastography (TE) have not been evaluated. We conducted a meta-analysis of articles up to May 2022 to evaluate the performance of TE compared with liver biopsy in adult patients with PBC. MATERIALS AND METHODS Two reviewers performed the search and assessed which articles were included. The quality of each study was evaluated according to QUADAS-2 and NOS. Meta-analysis of sensitivity and specificity was conducted with a bivariate random-effects model. The protocol was registered in PROSPERO, ID CRD42020199915. RESULTS Four studies involving 377 patients were included. Only stages F3 and F4 were computed in the meta-analysis. TE had a pooled sensitivity of 68% and specificity of 92% for stage F3 and a pooled sensitivity of 90% and specificity of 94% for stage F4. The AUROC curves were 0.91 (95% Confidence Interval (CI) 0.88-0.93) and 0.97 (95% CI 0.96-0.98) for stages F3 and F4, respectively. The mean cut-off points of TE for stage F3 were 9.28 kPa (95% CI 4.98-13.57) and for stage F4 were 15.2 kPa (95% CI 7.02-23.37). CONCLUSIONS TE performance compared with liver biopsy in adult patients with PBC was excellent for staging liver fibrosis and was able to rule out cirrhosis in clinical practice.
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Affiliation(s)
| | - Jorge Aquino-Matus
- Obesity and Digestive Diseases Unit, Medica Sur Hospital, Mexico City, Mexico
| | - Dèsirée Vidaña-Pérez
- Center for Research Evaluation and Surveys, National Institute of Public Health, Mexico City, Mexico
| | - Misael Uribe
- Obesity and Digestive Diseases Unit, Medica Sur Hospital, Mexico City, Mexico
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Aquino-Matus J, Uribe M, Chavez-Tapia N. COVID-19: Current Status in Gastrointestinal, Hepatic, and Pancreatic Diseases—A Concise Review. Trop Med Infect Dis 2022; 7:tropicalmed7080187. [PMID: 36006279 PMCID: PMC9415805 DOI: 10.3390/tropicalmed7080187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/09/2022] [Accepted: 08/09/2022] [Indexed: 01/08/2023] Open
Abstract
The gastrointestinal tract plays an important role in the pathogenesis of COVID-19. The angiotensin-converting enzyme 2 receptor and the transmembrane protease serine 2 receptor bind and activate SARS-CoV-2 and are present in high concentrations throughout the gastrointestinal tract. Most patients present with gastrointestinal symptoms and/or abnormal liver function tests, both of which have been associated with adverse outcomes. The mechanisms of liver damage are currently under investigation, but the damage is usually transient and nonsevere. Liver transplantation is the only definitive treatment for acute liver failure and end-stage liver disease, and unfortunately, because of the need for ventilators during the COVID-19 pandemic, most liver transplant programs have been suspended. Patients with gastrointestinal autoimmune diseases require close follow-up and may need modification in immunosuppression. Acute pancreatitis is a rare manifestation of COVID-19, but it must be considered in patients with abdominal pain. The gastrointestinal tract, including the liver and the pancreas, has an intimate relationship with COVID-19 that is currently under active investigation.
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Arab JP, Dirchwolf M, Álvares-da-Silva MR, Barrera F, Benítez C, Castellanos-Fernandez M, Castro-Narro G, Chavez-Tapia N, Chiodi D, Cotrim H, Cusi K, de Oliveira CPMS, Díaz J, Fassio E, Gerona S, Girala M, Hernandez N, Marciano S, Masson W, Méndez-Sánchez N, Leite N, Lozano A, Padilla M, Panduro A, Paraná R, Parise E, Perez M, Poniachik J, Restrepo JC, Ruf A, Silva M, Tagle M, Tapias M, Torres K, Vilar-Gomez E, Costa Gil JE, Gadano A, Arrese M. Latin American Association for the study of the liver (ALEH) practice guidance for the diagnosis and treatment of non-alcoholic fatty liver disease. Ann Hepatol 2021; 19:674-690. [PMID: 33031970 DOI: 10.1016/j.aohep.2020.09.006] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 09/17/2020] [Indexed: 02/07/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) currently represents an epidemic worldwide. NAFLD is the most frequently diagnosed chronic liver disease, affecting 20-30% of the general population. Furthermore, its prevalence is predicted to increase exponentially in the next decades, concomitantly with the global epidemic of obesity, type 2 diabetes mellitus (T2DM), and sedentary lifestyle. NAFLD is a clinical syndrome that encompasses a wide spectrum of associated diseases and hepatic complications such as hepatocellular carcinoma (HCC). Moreover, this disease is believed to become the main indication for liver transplantation in the near future. Since NAFLD management represents a growing challenge for primary care physicians, the Asociación Latinoamericana para el Estudio del Hígado (ALEH) has decided to organize this Practice Guidance for the Diagnosis and Treatment of Non-Alcoholic Fatty Liver Disease, written by Latin-American specialists in different clinical areas, and destined to general practitioners, internal medicine specialists, endocrinologists, diabetologists, gastroenterologists, and hepatologists. The main purpose of this document is to improve patient care and awareness of NAFLD. The information provided in this guidance may also be useful in assisting stakeholders in the decision-making process related to NAFLD. Since new evidence is constantly emerging on different aspects of the disease, updates to this guideline will be required in future.
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Affiliation(s)
- Juan Pablo Arab
- Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Melisa Dirchwolf
- Unidad de Trasplante Hepático, Servicio de Hepatología, Hospital Privado de Rosario, Rosario, Argentina.
| | - Mário Reis Álvares-da-Silva
- Hepatology Division, Hospital de Clinicas de Porto Alegre, Brazil; School of Medicine, Universidade Federal do Rio Grande do Sul, Brazil; Graduate Program in Gastroenterology and Hepatology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
| | - Francisco Barrera
- Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Carlos Benítez
- Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | | | - Graciela Castro-Narro
- Gastroenterology Department, National Institute of Medical Sciences and Nutrition "Salvador Zubirán", Mexico City, Mexico.
| | | | - Daniela Chiodi
- Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.
| | - Helma Cotrim
- School of Medicine, Federal University of Bahia, Salvador, Bahia, Brazil.
| | - Kenneth Cusi
- Division of Endocrinology, Diabetes and Metabolism, University of Florida, Gainesville, FL, USA.
| | | | - Javier Díaz
- Departamento del Aparato Digestivo, Hospital Edgardo Rebagliati Martins, EsSalud, Lima, Peru.
| | - Eduardo Fassio
- Sección Hígado, Vías Biliares y Páncreas, Servicio de Gastroenterología, Hospital Nacional Profesor Alejandro Posadas, El Palomar, Buenos Aires, Argentina.
| | - Solange Gerona
- Liver Unit, Hospital de Fuerzas Armadas, Montevideo, Uruguay.
| | | | - Nelia Hernandez
- Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.
| | | | - Walter Masson
- Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
| | | | - Nathalie Leite
- School of Medicine, Internal Medicine Department and Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Adelina Lozano
- Unidad de Hígado, Servicio de Gastroenterología, Hospital Nacional Arzobispo Loayza, Lima, Peru; Universidad Peruana Cayetano Heredia, Lima, Peru.
| | | | - Arturo Panduro
- Department of Molecular Biology in Medicine, Civil Hospital of Guadalajara, Fray Antonio Alcalde, Guadalajara, Jalisco, Mexico.
| | - Raymundo Paraná
- School of Medicine, Federal University of Bahia, Salvador, Bahia, Brazil.
| | - Edison Parise
- Department of Gastroenterology, Federal University of Sao Paulo, Sao Paulo, Brazil.
| | - Marlene Perez
- Hospital General de la Plaza de la Salud, Santo Domingo, Dominican Republic.
| | - Jaime Poniachik
- Sección de Gastroenterología, Hospital Clínico Universidad de Chile, Santiago, Chile.
| | - Juan Carlos Restrepo
- Hepatobiliary and Liver Transplant Program, Hospital Pablo Tobon Uribe-Universidad de Antioquia, Medellín, Colombia; Grupo Gastrohepatologia, Facultad de Medicina, Universidad of Antioquía UdeA, Medellin, Colombia.
| | - Andrés Ruf
- Unidad de Trasplante Hepático, Servicio de Hepatología, Hospital Privado de Rosario, Rosario, Argentina.
| | - Marcelo Silva
- Hepatology and Liver Transplant Unit, Hospital Universitario Austral, Pilar, Argentina.
| | - Martín Tagle
- Facultad de Medicina Alberto Hurtado, Universidad Peruana Cayetano Heredia, Lima, Peru.
| | - Monica Tapias
- Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia.
| | - Kenia Torres
- Hospital General de la Plaza de la Salud, Santo Domingo, Dominican Republic.
| | - Eduardo Vilar-Gomez
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, IN, USA.
| | | | - Adrian Gadano
- Liver Unit, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
| | - Marco Arrese
- Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.
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Vidal-Cevallos P, Chavez-Tapia N. Very-early-stage Hepatocellular Carcinoma, Are We at Long Last on Route for Achieving Better Patient Outcomes? J Clin Transl Hepatol 2021; 9:141-142. [PMID: 34007794 PMCID: PMC8111116 DOI: 10.14218/jcth.2021.00137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 04/16/2021] [Indexed: 12/04/2022] Open
Affiliation(s)
- Paulina Vidal-Cevallos
- Obesity and Digestive Disease Unit, Medica Sur Clinic and Foundation, Mexico City, Mexico
| | - Norberto Chavez-Tapia
- Obesity and Digestive Disease Unit, Medica Sur Clinic and Foundation, Mexico City, Mexico
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Mendizabal M, Ridruejo E, Piñero F, Anders M, Padilla M, Toro LG, Torre A, Montes P, Urzúa A, Gonzalez Ballerga E, Silveyra MD, Michelato D, Díaz J, Peralta M, Pages J, García SR, Gutierrez Lozano I, Macias Y, Cocozzella D, Chavez-Tapia N, Tagle M, Dominguez A, Varón A, Vera Pozo E, Higuera-de la Tijera F, Bustios C, Conte D, Escajadillo N, Gómez AJ, Tenorio L, Castillo Barradas M, Schinoni MI, Bessone F, Contreras F, Nazal L, Sanchez A, García M, Brutti J, Cabrera MC, Miranda-Zazueta G, Rojas G, Cattaneo M, Castro-Narro G, Rubinstein F, Silva MO. Comparison of different prognostic scores for patients with cirrhosis hospitalized with SARS-CoV-2 infection. Ann Hepatol 2021; 25:100350. [PMID: 33864948 PMCID: PMC8045426 DOI: 10.1016/j.aohep.2021.100350] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/01/2021] [Accepted: 03/05/2021] [Indexed: 02/06/2023]
Abstract
INTRODUCTION AND OBJECTIVES Viral infections have been described to increase the risk of decompensation in patients with cirrhosis. We aimed to determine the effect of SARS-CoV-2 infection on outcome of hospitalized patients with cirrhosis and to compare the performance of different prognostic models for predicting mortality. PATIENTS We performed a prospective cohort study including 2211 hospitalized patients with confirmed SARS-CoV-2 infection from April 15, 2020 through October 1, 2020 in 38 Hospitals from 11 Latin American countries. We registered clinical and laboratory parameters of patients with and without cirrhosis. All patients were followed until discharge or death. We evaluated the prognostic performance of different scoring systems to predict mortality in patients with cirrhosis using ROC curves. RESULTS Overall, 4.6% (CI 3.7-5.6) subjects had cirrhosis (n = 96). Baseline Child-Turcotte-Pugh (CTP) class was assessed: CTP-A (23%), CTP-B (45%) and CTP-C (32%); median MELD-Na score was 19 (IQR 14-25). Mortality was 47% in patients with cirrhosis and 16% in patients without cirrhosis (P < .0001). Cirrhosis was independently associated with death [OR 3.1 (CI 1.9-4.8); P < .0001], adjusted by age, gender, and body mass index >30. The areas under the ROC curves for performance evaluation in predicting 28-days mortality for Chronic Liver Failure Consortium (CLIF-C), North American Consortium for the Study of End-Stage Liver Disease (NACSELD), CTP score and MELD-Na were 0.85, 0.75, 0.69, 0.67; respectively (P < .0001). CONCLUSIONS SARS-CoV-2 infection is associated with elevated mortality in patients with cirrhosis. CLIF-C had better performance in predicting mortality than NACSELD, CTP and MELD-Na in patients with cirrhosis and SARS-CoV-2 infection. Clinicaltrials.gov:NCT04358380.
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Affiliation(s)
- Manuel Mendizabal
- Hepatology and Liver Transplant Unit, Hospital Universitario Austral, Universidad Austral, Pilar, Argentina; Latin American Liver Research Educational and Awareness Network (LALREAN).
| | - Ezequiel Ridruejo
- Latin American Liver Research Educational and Awareness Network (LALREAN); Liver Section, Centro de Educación Médica e Investigaciones Clínicas, Buenos Aires, Argentina
| | - Federico Piñero
- Hepatology and Liver Transplant Unit, Hospital Universitario Austral, Universidad Austral, Pilar, Argentina; Latin American Liver Research Educational and Awareness Network (LALREAN)
| | - Margarita Anders
- Latin American Liver Research Educational and Awareness Network (LALREAN); Hepatology and Liver Transplant Unit, Hospital Alemán, Buenos Aires, Argentina
| | - Martín Padilla
- Gastroenterology Unit, Hospital Nacional Guillermo Almenara Irigoyen, Lima, Perú
| | - Luis G Toro
- Hepatology and Liver Transplant Unit, Hospitales de San Vicente Fundación de Medellín y Rionegro, Medellín, Colombia
| | - Aldo Torre
- Department of Gastroenterology, Instituto Nacional de Ciencias Médicas y Nutrición, Ciudad de México, México
| | - Pedro Montes
- Gastroenterology Unit, Hospital Nacional Daniel A. Carrión, Callao, Perú
| | - Alvaro Urzúa
- Gastroenterology Section, Internal Medicine Department, Hospital Clínico de la Universidad de Chile, Santiago, Chile
| | - Esteban Gonzalez Ballerga
- Department of Gastroenterology, Hospital de Clínicas José de San Martín, Universidad de Buenos Aires, Buenos Aires, Argentina
| | | | - Douglas Michelato
- Hospital Especializado en Enfermedades Infecciosas Instituto Couto Maia, Salvador de Bahía, Brazil
| | - Javier Díaz
- Hospital Nacional Edgardo Rebagliati Martins, Lima, Perú
| | - Mirta Peralta
- Latin American Liver Research Educational and Awareness Network (LALREAN); Intensive Care Unit, Hospital de Infecciosas Francisco J Muñiz, Buenos Aires, Argentina
| | - Josefina Pages
- Hepatology and Liver Transplant Unit, Hospital Universitario Austral, Universidad Austral, Pilar, Argentina; Latin American Liver Research Educational and Awareness Network (LALREAN)
| | - Sandro Ruiz García
- Gastroenterology Unit, Hospital de Víctor Lazarte Echegaray, Trujillo, Perú
| | | | - Yuridia Macias
- Department of Medicine, IMSS Hospital General Regional No. 1 "Dr. Carlos Mc Gregor Sánchez", Ciudad de México, Mexico
| | - Daniel Cocozzella
- Latin American Liver Research Educational and Awareness Network (LALREAN); Department of Gastroenterology, Hospital Italiano de La Plata, La Plata, Argentina
| | | | - Martín Tagle
- Gastroenterology Unit, Clínica Anglo-Americana, Lima, Perú
| | | | - Adriana Varón
- Latin American Liver Research Educational and Awareness Network (LALREAN); Liver Unit, Fundación Cardio-Infantil, Bogotá, Colombia
| | - Emilia Vera Pozo
- Hospital Regional Dr. Teodoro Maldonado Carbo del IESS, Guayaquil, Ecuador
| | - Fátima Higuera-de la Tijera
- Department of Gastroenterology and Hepatology, Hospital General de México "Dr. Eduardo Liceaga", Ciudad de México, México
| | | | - Damián Conte
- Unidad de Hígado, Hospital Privado de Córdoba, Córdoba, Argentina
| | - Nataly Escajadillo
- Gastroenterology Unit, Hospital Nacional Almanzor Aguinaga Asenjo, Chiclayo, Perú
| | - Andrés J Gómez
- Endoscopy and Transplant Service, Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia
| | - Laura Tenorio
- Hospital Nacional Edgardo Rebagliati Martins, Lima, Perú
| | - Mauricio Castillo Barradas
- Gastroenterology Unit, Hospital de Especialidades del Centro Médico Nacional La Raza IMSS, Ciudad de México, México
| | - Maria Isabel Schinoni
- Latin American Liver Research Educational and Awareness Network (LALREAN); Department of Gastroenterology, Hospital Alianza, Bahía, Brazil
| | - Fernando Bessone
- Department of Gastroenterology, Hospital Provincial del Centenario, Rosario, Argentina
| | - Fernando Contreras
- Department of Gastroenterology, CEDIMAT, Santo Domingo, Dominican Republic
| | - Leyla Nazal
- Department of Gastroenterology, Clínica Las Condes, Santiago, Chile
| | - Abel Sanchez
- Department of Gastroenterology, Hospital Roosevelt, Ciudad de Guatemala, Guatemala
| | - Matías García
- Liver Section, Centro de Educación Médica e Investigaciones Clínicas, Buenos Aires, Argentina
| | - Julia Brutti
- Department of Internal Medicine, Sanatorio Anchorena, Buenos Aires, Argentina
| | | | - Godolfino Miranda-Zazueta
- Department of Gastroenterology, Instituto Nacional de Ciencias Médicas y Nutrición, Ciudad de México, México
| | - German Rojas
- Department of Gastroenterology, Hospital de Clínicas José de San Martín, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Maximo Cattaneo
- Gastroenterology Section, Internal Medicine Department, Hospital Clínico de la Universidad de Chile, Santiago, Chile
| | | | | | - Marcelo O Silva
- Hepatology and Liver Transplant Unit, Hospital Universitario Austral, Universidad Austral, Pilar, Argentina; Latin American Liver Research Educational and Awareness Network (LALREAN)
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Abstract
Liver stiffness is related to the degree of hepatic fibrosis which ultimately causes portal hypertension and gastroesophageal varices. Variceal bleeding is a worrisome and potentially fatal complication of cirrhosis, primary prophylaxis has demonstrated a reduction in decompensation and mortality. Portal hypertension and esophageal varices needing treatment could be predicted through noninvasive methods, including elastography, that evaluates the mechanical properties of liver or spleen tissue in concordance to the propagation of mechanical waves. The accurate prediction of the risk of gastroesophageal varices could spare unnecessary endoscopies in patients with low probability of finding varices needing treatment. In the current review, we discuss the elastography modalities available and the current evidence for its implementation in daily clinical practice.
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Chavez-Tapia N. The bidirectional relationship between viral hepatitis infections and work. Ann Hepatol 2020; 18:655. [PMID: 31416707 DOI: 10.1016/j.aohep.2019.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 07/04/2019] [Indexed: 02/04/2023]
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Toapanta-Yanchapaxi L, Chavez-Tapia N, Téllez-Ávila F. Cyanoacrylate spray as treatment in difficult-to-manage gastrointestinal bleeding. World J Gastrointest Endosc 2014; 6:448-452. [PMID: 25228947 PMCID: PMC4163727 DOI: 10.4253/wjge.v6.i9.448] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 07/19/2014] [Accepted: 08/31/2014] [Indexed: 02/05/2023] Open
Abstract
Gastrointestinal bleeding can be a life-treating event that is managed with standard endoscopic therapy in the majority of cases. However, up to 5%-10% of patients may have persistent bleeding that does not respond to conventional measures. Several endoscopic treatment techniques have been proposed as strategies to control such cases, such as epinephrine injection, hemoclips or argon plasma coagulation, but there are certain clinical scenarios where it is difficult to achieve hemostasis even though adequate use of the available resources is made. Reasons for these failures can be associated with the lesion features, such as extent or location. The use of long-standing techniques in non-traditional scenarios, such as with cyanoacrylate for gastric varices sclerosis, has been reported with favorable results. Although new products such as TC-325 or Ankaferd Blood Stopper hemosprays may be useful, their formulations are not available worldwide. Here we present two clinical cases with very different scenarios of gastrointestinal bleeding, where the use of cyanoacrylate in spray had favorable results in uncommon indications. Cyanoacrylate used as a spray is a technique that can be used as an alternative method in emergent settings.
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Mendez-Sanchez N, Baptista-Gonzalez H, Chavez-Tapia N, Zamora-Valdes D, Uribe M. Importance of Iron and Iron Metabolism in Nonalcoholic Fatty Liver Disease. Mini Rev Med Chem 2008; 8:171-4. [DOI: 10.2174/138955708783498087] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Méndez-Sánchez N, Ponciano-Rodrigoez G, Chavez-Tapia N, Uribe M. Effects of Leptin on Biliary Lipids: Potential Consequences for Gallstone Formation and Therapy in Obesity. ACTA ACUST UNITED AC 2005; 5:203-8. [PMID: 16089354 DOI: 10.2174/1568008054064896] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Gallstone disease is exceptionally common, occurring especially in Western populations, with cholesterol gallstones predominating. Currently, it is believed that obesity is the most consistent and important risk factor for the development of cholesterol gallstones. Obesity has been shown to be associated with the supersaturation of bile with cholesterol because of increased hepatic secretion of the sterol. In accord with current information from experimental studies, leptin appears to be involved in biliary cholesterol secretion and cholesterol gallstone formation in humans. This review summarizes the current information on the role of obesity in biliary lipid secretion as well as the effect of leptin and its potential consequences for gallstone formation and therapy in the obese.
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Affiliation(s)
- Nahum Méndez-Sánchez
- Department of Biomedical Research, Liver Unit, Medica Sur Clinic and Foundation. Mexico City, Mexico.
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Méndez-Sánchez N, Motola-Kuba D, Bahena-Aponte J, Chavez-Tapia N, Pichardo-Bahena R, Uribe M. Hypertransaminasemia and severe hepatic steatosis without inflammation. A case report. Ann Hepatol 2004; 2:183-5. [PMID: 15115959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2003] [Indexed: 12/11/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a medical condition that may progress to end-stage liver disease. The spectrum of NAFLD is wide and ranges from simple fat accumulation in hepatocytes (steatosis), to fat accumulation plus necroinflammatory activity with or without fibrosis (steatohepatitis). In addition, NAFLD is the most common cause of abnormal liver-test results among adults with a prevalence of 13%-23%. This case report is an example of a patient with asymptomatic hypertransaminasemia and severe hepatic steatosis without inflammation in which the diagnosis was made by liver biopsy.
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Affiliation(s)
- Nahum Méndez-Sánchez
- Department of Biomedical Research, Medica Sur Clinic & Foundation, Mexico City, Mexico.
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