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Higuera-de-la-Tijera F, Velarde-Ruiz Velasco JA, Raña-Garibay RH, Castro-Narro GE, Abdo-Francis JM, Moreno-Alcántar R, Pérez-Hernández JL, Torre A, Contreras-Omaña R, Cano-Contreras A, Castillo-Barradas M, Pérez-Escobar J, Aldana-Ledesma JM, Cerda-Reyes E, Fernández-Pérez NJ, Meza-Cardona J, Flores-García NC, Reyes-Bastidas M, Lira-Vera JE, García-Jiménez ES, Santana-Vargas D, Páez-Zayas VM, Chávez-Tapia NC, Márquez-Guillén E. Current vision on diagnosis and comprehensive care in hepatic encephalopathy. Rev Gastroenterol Mex (Engl Ed) 2023; 88:155-174. [PMID: 37127462 DOI: 10.1016/j.rgmxen.2023.04.006] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 03/08/2023] [Indexed: 05/03/2023]
Abstract
The first clinical guidelines on hepatic encephalopathy were published in 2009. Almost 14 years since that first publication, numerous advances in the field of diagnosis, treatment, and special condition care have been made. Therefore, as an initiative of the Asociación Mexicana de Gastroenterología A.C., we present a current view of those aspects. The manuscript described herein was formulated by 24 experts that participated in six working groups, analyzing, discussing, and summarizing the following topics: Definition of hepatic encephalopathy; recommended classifications; epidemiologic panorama, worldwide and in Mexico; diagnostic tools; conditions that merit a differential diagnosis; treatment; and primary and secondary prophylaxis. Likewise, these guidelines emphasize the management of certain special conditions, such as hepatic encephalopathy in acute liver failure and acute-on-chronic liver failure, as well as specific care in patients with hepatic encephalopathy, such as the use of medications and types of sedation, describing those that are permitted or recommended, and those that are not.
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Affiliation(s)
- F Higuera-de-la-Tijera
- Departamento de Gastroenterología y Hepatología, Hospital General de México "Dr. Eduardo Liceaga", Mexico City, Mexico.
| | - J A Velarde-Ruiz Velasco
- Departamento de Gastroenterología, Hospital Civil de Guadalajara "Fray Antonio Alcalde", Guadalajara, Jalisco, Mexico
| | | | - G E Castro-Narro
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | | | - R Moreno-Alcántar
- Departamento de Gastroenterología, Hospital de Especialidades Bernardo Sepúlveda del Centro Médico Nacional Siglo XXI, IMSS, Mexico City, Mexico
| | - J L Pérez-Hernández
- Departamento de Gastroenterología y Hepatología, Hospital General de México "Dr. Eduardo Liceaga", Mexico City, Mexico
| | - A Torre
- Centro Médico ABC, Mexico City, Mexico
| | - R Contreras-Omaña
- Centro de Educación e Investigación en Enfermedades Hepáticas y Toxicológicas (CEIHET), Pachuca, Hidalgo, Mexico
| | - A Cano-Contreras
- Centro de Investigaciones Médico Biológicas, Universidad Veracruzana, Veracruz, Veracruz, Mexico
| | - M Castillo-Barradas
- Departamento de Gastroenterología, Hospital de Especialidades del Centro Médico Nacional "La Raza", IMSS, Mexico City, Mexico
| | - J Pérez-Escobar
- Instituto Nacional de Enfermedades Respiratorias (INER) "Ismael Cosío Villegas", Mexico City, Mexico
| | - J M Aldana-Ledesma
- Departamento de Gastroenterología, Hospital Civil de Guadalajara "Fray Antonio Alcalde", Guadalajara, Jalisco, Mexico
| | - E Cerda-Reyes
- Departamento de Gastroenterología, Hospital Central Militar, Mexico City, Mexico
| | | | | | - N C Flores-García
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | | | - J E Lira-Vera
- Hospital Central "Dr. Ignacio Morones Prieto", San Luis Potosí, Mexico
| | - E S García-Jiménez
- Departamento de Gastroenterología, Hospital Civil de Guadalajara "Fray Antonio Alcalde", Guadalajara, Jalisco, Mexico
| | - D Santana-Vargas
- Clínica de Trastornos del Sueño, Departamento de Medicina Experimental, Facultad de Medicina, UNAM, Mexico City, Mexico
| | - V M Páez-Zayas
- Departamento de Gastroenterología y Hepatología, Hospital General de México "Dr. Eduardo Liceaga", Mexico City, Mexico
| | | | - E Márquez-Guillén
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
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Castro-Narro G, Moctezuma-Velázquez C, Male-Velázquez R, Trejo-Estrada R, Bosques FJ, Moreno-Alcántar R, Rodríguez-Hernández H, Bautista-Santos A, Córtez-Hernández C, Cerda-Reyes E, Pérez-Escobar J, Aldana-Ledesma JM, Aguirre-Valadez J, Ruiz-Velasco JAV, Contreras-Omaña R, Miranda-Zazueta G, Reyes-Bastidas MDR, Meza-Cardona JM, Chávez-Tapia N, Fernández-Pérez NJ, García-Jiménez ES, Torre A. Position statement on the use of albumin in liver cirrhosis. Ann Hepatol 2022; 27:100708. [PMID: 35550187 DOI: 10.1016/j.aohep.2022.100708] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 02/07/2022] [Accepted: 02/15/2022] [Indexed: 02/04/2023]
Abstract
Cirrhosis is characterised by a prolonged asymptomatic period in which the inflammation persists, increasing as the disease progresses. Characteristic of this is the increase in pro-inflammatory cytokines and pro-oxidant molecules which are determining factors in the development of multiple organ dysfunction. In the early development of cirrhosis, splanchnic arterial vasodilation, activation of vasoconstrictor systems (renin-angiotensin-aldosterone) and the sympathetic nervous system (noradrenaline) bring about bacterial translocation and systemic dissemination via portal circulation of bacterial products, and molecular patterns associated with damage, which exacerbate the systemic inflammation present in the patient with cirrhosis. Albumin is a molecule that undergoes structural and functional changes as liver damage progresses, affecting its antioxidant, immunomodulatory, oncotic and endothelial stabilising properties. Our knowledge of the properties of albumin reveals a molecule with multiple treatment options in patients with cirrhosis, from the compensated then decompensated phases to multiple organ dysfunction. Its recognised uses in spontaneous bacterial peritonitis, post-paracentesis circulatory dysfunction, acute kidney injury and hepatorenal syndrome are fully validated, and a treatment option has opened up in decompensated cirrhosis and in acute-on-chronic liver disease.
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Affiliation(s)
- Graciela Castro-Narro
- Gastroenterology Department, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán" ["Salvador Zubirán" National Institute of Medical Sciences and Nutrition], Mexico City, Mexico; Gastroenterology Unit, Hospital Médica Sur, Mexico City, Mexico
| | - Carlos Moctezuma-Velázquez
- Gastroenterology Department, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán" ["Salvador Zubirán" National Institute of Medical Sciences and Nutrition], Mexico City, Mexico
| | - Rene Male-Velázquez
- Instituto de la Salud Digestiva y Hepática [Institute of Gastrointestinal and Liver Health], Guadalajara, Jalisco, Mexico
| | | | | | - Rosalba Moreno-Alcántar
- Centro Médico de Alta Especialidad Siglo XXI [21st Century High Speciality Medical Centre], Mexico City, Mexico
| | | | - Aleida Bautista-Santos
- Gastroenterology Department, Centro Médico Nacional 20 de Noviembre ["20 November" National Medical Centre], Mexico City, Mexico
| | | | - Eira Cerda-Reyes
- Hospital Central Militar, Mexico City, Mexico; Escuela Militar de Graduados de Sanidad, Mexico City, Mexico
| | - Juanita Pérez-Escobar
- Gastroenterology Department, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán" ["Salvador Zubirán" National Institute of Medical Sciences and Nutrition], Mexico City, Mexico
| | | | | | | | - Raúl Contreras-Omaña
- Centro de Estudio e Investigación en Enfermedades Hepáticas y Toxicológicas (CEIHET) [Centre for Study and Research in Hepatic and Toxicological Diseases], Pachuca de Soto, Hidalgo, Mexico
| | - Godolfino Miranda-Zazueta
- Gastroenterology Department, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán" ["Salvador Zubirán" National Institute of Medical Sciences and Nutrition], Mexico City, Mexico
| | | | | | | | | | | | - Aldo Torre
- Metabolic Unit, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán" ["Salvador Zubirán" National Institute of Medical Sciences and Nutrition], Mexico City, Mexico.
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Contreras-Omaña R, Velarde-Ruiz Velasco JA, Castro-Narro GE, Trujillo-Benavides O, Zamarripa-Dorsey F, Reyes-Dorantes AA, Muñoz-Espinosa L, Aiza-Haddad I, Castillo-Barradas M, Cerda-Reyes E, Cisneros-Garza LE, Flores-Calderón J, García-Jiménez ES, Higuera-de-la-Tijera MF, Lira-Pedrín MA, Marquez-Guillén E, Moctezuma-Velázquez C, Moreno-Alcántar R, Noyola-Cedillo SG, Pérez-Hernández JL, Ramos-Gómez MV, Remes-Troche JM, Rizo-Robles MT, Rodríguez-Hernández H. Approach to the patient with cholestasis and jaundice syndrome. Joint AMH, AMG, and AMEG scientific position statement. Rev Gastroenterol Mex (Engl Ed) 2021; 87:80-88. [PMID: 34866042 DOI: 10.1016/j.rgmxen.2021.04.003] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 04/14/2021] [Indexed: 11/17/2022]
Abstract
The term cholestasis refers to bile acid retention, whether within the hepatocyte or in the bile ducts of any caliber. Biochemically, it is defined by a level of alkaline phosphatase that is 1.67-times higher than the upper limit of normal. Cholestatic diseases can be associated with an inflammatory process of the liver that destroys hepatocytes (hepatitis), withjaundice (yellowing of the skin and mucus membranes, associated with elevated serum bilirubin levels), or with both, albeit the three concepts should not be considered synonymous. Cholestatic diseases can be classified as intrahepatic or extrahepatic, depending on their etiology. Knowing the cause of the condition is important for choosing the adequate diagnostic studies and appropriate treatment in each case. A complete medical history, together with a thorough physical examination and basic initial studies, such as liver ultrasound and liver function tests, aid the clinician in deciding which path to follow, when managing the patient with cholestasis. In a joint effort, the Asociación Mexicana de Hepatología (AMH), the Asociación Mexicana de Gastroenterología (AMG) and the Asociación Mexicana de Endoscopia Gastrointestinal (AMEG) developed the first Mexican scientific position statement on said theme.
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Affiliation(s)
- R Contreras-Omaña
- Centro de Estudio e Investigación en Enfermedades Hepáticas (CEIHE), Pachuca, Hidalgo, Mexico.
| | | | | | | | | | | | - L Muñoz-Espinosa
- Centro de Hepatología, Departamento de Medicina Interna, Hospital Universitario "Dr. José E. González", Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
| | - I Aiza-Haddad
- Clínica de Enfermedades Hepáticas, Hospital Ángeles Lomas, Mexico City, Mexico
| | - M Castillo-Barradas
- Hospital de Especialidades CMN La Raza, IMSS Hospital Ángeles Lindavista, Mexico City, Mexico
| | | | | | - J Flores-Calderón
- Servicio de Gastropediatría, UMAE Hospital de Pediatría CMN Siglo XXI IMSS, Mexico City, Mexico
| | - E S García-Jiménez
- Hospital Civil de Guadalajara "Fray Antonio Alcalde", Guadalajara, Jalisco, Mexico
| | - M F Higuera-de-la-Tijera
- Servicio de Gastroenterología, Hospital General de México "Dr. Eduardo Liceaga", Mexico City, Mexico
| | - M A Lira-Pedrín
- Hospital Centro Médico del Prado, Tijuana, Baja California, Mexico
| | | | | | | | - S G Noyola-Cedillo
- Centro Médico del Noreste, Clínica 25 IMSS, Monterrey, Nuevo León, Hospital Ángeles Torreón, Coahuila, Mexico
| | - J L Pérez-Hernández
- Hospital Central Sur de Alta Especialidad Petróleos Mexicanos, Mexico City, Mexico
| | - M V Ramos-Gómez
- Servicio de Gastroenterología, CMN 20 de Noviembre, ISSSTE Mexico City, Mexico
| | - J M Remes-Troche
- Instituto de Investigaciones Médico-Biológicas, Universidad Veracruzana, Veracruz, Mexico
| | - M T Rizo-Robles
- UMAE Hospital de Especialidades CMN La Raza IMSS, Mexico City, Mexico
| | - H Rodríguez-Hernández
- Facultad de Medicina y Nutrición, Universidad Juárez del Estado de Durango, Durango, Mexico
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Velarde-Ruiz Velasco JA, Higuera-de la Tijera MF, Castro-Narro GE, Zamarripa-Dorsey F, Abdo-Francis JM, Aiza Haddad I, Aldana Ledesma JM, Bielsa-Fernández MV, Cerda-Reyes E, Cisneros-Garza LE, Contreras-Omaña R, Reyes-Dorantes A, Fernández-Pérez NJ, García-Jiménez ES, Icaza-Chávez ME, Kershenobich-Stalnikowitz D, Lira-Pedrín MA, Moreno-Alcántar R, Pérez-Hernández JL, Ramos-Gómez MV, Rizo-Robles MT, Solana-Sentíes S, Torre-Delgadillo A. The Mexican consensus on alcoholic hepatitis. Rev Gastroenterol Mex (Engl Ed) 2020; 85:332-353. [PMID: 32532534 DOI: 10.1016/j.rgmx.2020.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
Alcoholic hepatitis is a frequent condition in the Mexican population. It is characterized by acute-on-chronic liver failure, important systemic inflammatory response, and multiple organ failure. The severe variant of the disease implies elevated mortality. Therefore, the Asociación Mexicana de Gastroenterología and the Asociación Mexicana de Hepatología brought together a multidisciplinary team of health professionals to formulate the first Mexican consensus on alcoholic hepatitis, carried out utilizing the Delphi method and resulting in 37 recommendations. Alcohol-related liver disease covers a broad spectrum of pathologies that includes steatosis, steatohepatitis, different grades of fibrosis, and cirrhosis and its complications. Severe alcoholic hepatitis is defined by a modified Maddrey's discriminant function score ≥ 32 or by a Model for End-Stage Liver Disease (MELD) score equal to or above 21. There is currently no specific biomarker for its diagnosis. Leukocytosis with neutrophilia, hyperbilirubinemia (> 3 mg/dL), AST > 50 U/l (< 400 U/l), and an AST/ALT ratio > 1.5-2 can guide the diagnosis. Abstinence from alcohol, together with nutritional support, is the cornerstone of treatment. Steroids are indicated for severe disease and have been effective in reducing the 28-day mortality rate. At present, liver transplantation is the only life-saving option for patients that are nonresponders to steroids. Certain drugs, such as N-acetylcysteine, granulocyte-colony stimulating factor, and metadoxine, can be adjuvant therapies with a positive impact on patient survival.
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Affiliation(s)
- J A Velarde-Ruiz Velasco
- Servicio de Gastroenterología; Hospital Civil de Guadalajara Fray Antonio Alcalde, Guadalajara, Jalisco, México.
| | - M F Higuera-de la Tijera
- Servicio de Gastroenterología, Hospital General de México Dr. Eduardo Liceaga, Ciudad de México, México
| | - G E Castro-Narro
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México
| | | | | | - I Aiza Haddad
- Clínica de Enfermedades Hepáticas, Hospital Ángeles Lomas, Estado de México, México
| | - J M Aldana Ledesma
- Servicio de Gastroenterología; Hospital Civil de Guadalajara Fray Antonio Alcalde, Guadalajara, Jalisco, México
| | | | | | | | - R Contreras-Omaña
- Centro de Investigación en Enfermedades Hepáticas y Gastroenterología, Pachuca, Hidalgo, México
| | | | | | - E S García-Jiménez
- Servicio de Gastroenterología; Hospital Civil de Guadalajara Fray Antonio Alcalde, Guadalajara, Jalisco, México
| | | | | | - M A Lira-Pedrín
- Servicio de Medicina Interna y Gastroenterología. Hospital y Centro Médico del Prado, Tijuana, Baja California, México
| | - R Moreno-Alcántar
- Unidad Médica de Alta Especialidad, Hospital de Especialidades CMN SXXI, Ciudad de México, México
| | - J L Pérez-Hernández
- Servicio de Gastroenterología, Hospital General de México Dr. Eduardo Liceaga, Ciudad de México, México; Hospital Central Sur de Alta Especialidad Petróleos Mexicanos, Ciudad de México, México
| | - M V Ramos-Gómez
- Centro Médico Nacional 20 de Noviembre, Ciudad de México, México
| | - M T Rizo-Robles
- Unidad Médica de Alta Especialidad, Hospital de Especialidades CMN SXXI, Ciudad de México, México
| | | | - A Torre-Delgadillo
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México
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Velarde-Ruiz Velasco JA, García-Jiménez ES, Remes-Troche JM. Hepatic manifestations and impact of COVID-19 on the cirrhotic patient. Rev Gastroenterol Mex (Engl Ed) 2020; 85:303-311. [PMID: 32553772 PMCID: PMC7250745 DOI: 10.1016/j.rgmx.2020.05.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/08/2020] [Accepted: 05/19/2020] [Indexed: 02/07/2023]
Abstract
El coronavirus SARS-CoV-2, un nuevo coronavirus, es responsable de la enfermedad infecciosa por coronavirus 19 (COVID-19). A nivel global, esta pandemia va en crecimiento y pudiera afectar al 50-60% de la población mundial en los siguientes meses. Si bien es una enfermedad cuya manifestación más severa es la neumonía atípica y sepsis, recientemente se ha descrito que el tracto digestivo y en particular el hígado, pueden verse afectados por el SARS-CoV-2. Así pues, el objetivo del presente trabajo es revisar la literatura disponible al respecto y emitir algunas recomendaciones del papel que el COVID-19 ejerce sobre el hígado en la salud y la enfermedad. La incidencia de lesión hepática asociada específicamente a COVID-19 varía de 14.8-53%. La mayoría de las series de casos han reportado alteración en ALT y AST, elevación de bilirrubinas totales y albúmina sérica baja. La afectación hepática se ha asociado a casos más graves de COVID-19. Por otra parte, se reconoce que la cirrosis hepática es un estado de disfunción inmune que comprende inmunodeficiencia e inflamación sistémica, lo cual hace razonable que estos pacientes sean más susceptibles a la infección por SARS-CoV-2. Las recomendaciones para estos pacientes, además de las medidas generales para la población (aislamiento social, lavado de manos) incluyen el apoyo social, médico y psicológico durante el período de estancia en el domicilio para evitar transgresiones a la terapia. Es recomendable orientar a los pacientes a mantenerse informados de los cambios en recomendaciones y políticas sociales.
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Affiliation(s)
- J A Velarde-Ruiz Velasco
- Servicio de Gastroenterología, Hospital Civil de Guadalajara «Fray Antonio Alcalde», Guadalajara, Jalisco, México
| | - E S García-Jiménez
- Servicio de Gastroenterología, Hospital Civil de Guadalajara «Fray Antonio Alcalde», Guadalajara, Jalisco, México
| | - J M Remes-Troche
- Instituto de Investigaciones Médico Biológicas, Universidad Veracruzana, Veracruz, México.
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Velarde-Ruiz Velasco JA, García-Jiménez ES, García-Zermeño KR, Morel-Cerda EC, Aldana-Ledesma JM, Castro-Narro GE, Cerpa-Cruz S, Tapia-Calderón DK, Mercado-Jauregui LA, Contreras-Omaña R. Extrahepatic complications of non-alcoholic fatty liver disease: Its impact beyond the liver. Rev Gastroenterol Mex (Engl Ed) 2019; 84:472-481. [PMID: 31488310 DOI: 10.1016/j.rgmx.2019.05.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 04/20/2019] [Accepted: 05/02/2019] [Indexed: 12/12/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is currently one of the main causes of chronic liver disease in Western countries, with a 25% prevalence reported in the general population worldwide. Visceral adiposity and liver fat promote a state of systemic inflammation, predisposing individuals with NAFLD to the extrahepatic pathologies of cardiovascular disease (the most common cause of death in patients with NAFLD), diabetes mellitus, chronic kidney disease, hypothyroidism, polycystic ovary syndrome, obstructive sleep apnea, and an increased risk for presenting with gastrointestinal and extraintestinal neoplasias. Different mechanisms between NAFLD and its association with extrahepatic diseases have been reported, and lipotoxicity is the main cause of inflammatory pathway activation that results in extrahepatic tissue damage.
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Affiliation(s)
- J A Velarde-Ruiz Velasco
- Servicio de Gastroenterología, Hospital Civil de Guadalajara Fray Antonio Alcalde, Guadalajara, Jalisco, México.
| | - E S García-Jiménez
- Servicio de Gastroenterología, Hospital Civil de Guadalajara Fray Antonio Alcalde, Guadalajara, Jalisco, México
| | - K R García-Zermeño
- Servicio de Gastroenterología, Hospital Civil de Guadalajara Fray Antonio Alcalde, Guadalajara, Jalisco, México
| | - E C Morel-Cerda
- Servicio de Gastroenterología, Hospital Civil de Guadalajara Fray Antonio Alcalde, Guadalajara, Jalisco, México
| | - J M Aldana-Ledesma
- Servicio de Gastroenterología, Hospital Civil de Guadalajara Fray Antonio Alcalde, Guadalajara, Jalisco, México
| | - G E Castro-Narro
- Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México
| | - S Cerpa-Cruz
- Servicio de Reumatología, Hospital Civil de Guadalajara Fray Antonio Alcalde, Guadalajara, Jalisco, México
| | - D K Tapia-Calderón
- Servicio de Gastroenterología, Hospital Civil de Guadalajara Fray Antonio Alcalde, Guadalajara, Jalisco, México
| | - L A Mercado-Jauregui
- Servicio de Gastroenterología, Hospital Civil de Guadalajara Fray Antonio Alcalde, Guadalajara, Jalisco, México
| | - R Contreras-Omaña
- Centro de Investigación en Enfermedades Hepáticas y Gastroenterología (CIEHG), Pachuca, Hidalgo, México
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