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OBJECTIVE: Sarcopenia has been related to negative outcomes in different clinical scenarios from critical illness to chronic conditions. The aim of this study was to verify whether there was an association between low skeletal muscle index and in-hospital mortality, intensive care unit admission, and invasive mechanical ventilation need in hospitalized patients with COVID-19. DESIGN: This was a retrospective cohort study of a referral center for COVID-19. We included all consecutive patients admitted to the hospital between February 26 and May 15, 2020, with a confirmed diagnosis of COVID-19. Skeletal muscle index was assessed from a transverse computed tomography image at the level of twelfth thoracic vertebra with National Institutes of Health ImageJ software, and statistical analysis was performed to find an association between skeletal muscle index and in-hospital mortality, need of invasive mechanical ventilation, and intensive care unit admission. RESULTS: We included 519 patients, the median age was 51 (42-61) yrs, and 115 patients (22%) had low skeletal muscle index. On multivariable analysis, skeletal muscle index was not associated with mortality, intensive care unit admission, or invasive mechanical ventilation need nor in a subanalysis of patients 65 yrs or older. CONCLUSIONS: Skeletal muscle index determined by computed tomography at the level of twelfth thoracic vertebra was not associated with negative outcomes in hospitalized patients with COVID-19.

The coronavirus disease 2019 (COVID-19) is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus. COVID-19 affected close to 2 million persons worldwide in fewer than 4 months, after the report of the first cases in China in December 2019. The relation of the disease caused by SARS-Cov-2 to immunosuppressive treatment used in different gastrointestinal disorders is uncertain, resulting in debate with regard to suspending immunosuppressive therapy to improve infection outcome. Said suspension implies the inherent risk for graft rejection or autoimmune disease exacerbation that can potentially worsen the course of the infection. Based on the presently available evidence, a treatment stance has been established for patients with gastrointestinal diseases that require immunosuppressive therapy. Resumen: La enfermedad por coronavirus 2019 (COVID-19) es causada por el virus de Síndrome Respiratorio Agudo Grave - Coronavirus 2 (SARS-CoV-2). COVID 19 afectó cerca de 2 millones de personas en todo el mundo en menos de 4 meses posterior al reporte de los primeros casos en China en diciembre 2019. La relación que guarda la enfermedad por SARS-Cov-2 con el tratamiento inmunosupresor utilizado en diversos trastornos gastrointestinales es incierta, esto genera el debate sobre suspender el tratamiento inmunosupresor para mejorar el pronóstico de la infección, lo cual incluye el riesgo inherente de rechazo de injerto o agudización de enfermedades autoinmunes que potencialmente pudieran agravar el curso de la infección. En base a la evidencia disponible se logra establecer una postura de tratamiento en pacientes con enfermedades gastrointestinales que requieren terapia inmunosupresora.

Resumen: La leche es un alimento que tiene una importante cantidad de macronutrimentos de gran biodisponibilidad, accesible y de relativo bajo costo. El conocimiento de los médicos en general sobre nutrición y composición de los alimentos es deficiente por lo que muchas de las intervenciones dietéticas que tradicionalmente recomendamos en diversos escenarios clínicos carecen de sustento científico. El objetivo de esta revisión fue generar una opinión técnica que sirva como marco de referencia para sustentar de mejor forma la recomendación sobre el consumo de leche y productos lácteos en la nutrición diaria de adultos y adultos mayores. Los efectos de la leche y productos lácteos durante la etapa pediátrica salen del contexto del presente trabajo. La Asociación Mexicana de Gastroenterología y la Asociación Mexicana de Gerontología y Geriatría comentaron y analizaron de forma conjunta temas acerca de la denominación legal de la leche, clasificación y perfil nutrimental de la leche de vaca, sus características nutrimentales, su consumo en el adulto, intolerancia a la leche de vaca, asociaciones entre el consumo de leche y alteraciones del aparato digestivo y otras condiciones; finalmente, se mencionan de forma breve algunos aspectos sobre el consumo de leche en el adulto mayor y su relación con la salud. Abstract: Milk is a liquid food that possesses an important quantity of highly bioavailable macronutrients. In addition, it is readily accessible, as well as relatively inexpensive. Given that the knowledge of physicians about nutrition and food composition is deficient, in general, many of the dietary interventions recommended in diverse clinical settings lack a scientific basis. The aim of the present review was to produce a technical opinion that serves as a frame of reference to best sustain recommendations for consuming milk and dairy products as daily nutrition in the adult and older adult. The effects of milk and dairy products during the pediatric stage are not addressed in the present work. The Asociación Mexicana de Gastroenterología and the Asociación Mexicana de Gerontología y Geriatría jointly discussed and analyzed topics dealing with the legal designation of milk, the classification and nutritional profile of cow's milk, its nutritional characteristics, its consumption in the adult, intolerance to cow's milk, and associations of milk consumption with digestive tract alterations and other conditions. Finally, certain aspects of milk consumption in the older adult and its relation to overall health are briefly discussed. Palabras clave: Lácteos, Leche de vaca, Alimentación, Adulto, Adulto mayor, Keywords: Dairy products, Cow's milk, Diet, Adult, Older adult

Important advances have been made since the last Mexican consensus on the diagnosis and treatment of Helicobacter pylori (H. pylori) infection was published in 2007. Therefore, the Asociacion Mexicana de Gastroenterologia summoned 20 experts to produce "The Fourth Mexican Consensus on Helicobacter pylori". From February to June 2017, 4 working groups were organized, a literature review was performed, and 3 voting rounds were carried out, resulting in the formulation of 32 statements for discussion and consensus. From the ensuing recommendations, it was striking that Mexico is a country with an intermediate-to-low risk for gastric cancer, despite having a high prevalence of H. pylori infection. It was also corroborated that peptic ulcer disease, premalignant lesions, and histories of gastric cancer and mucosa-associated lymphoid tissue lymphoma should be considered clear indications for eradication. The relation of H. pylori to dyspeptic symptoms continues to be controversial. Eradication triple therapy with amoxicillin, clarithromycin, and a proton pump inhibitor should no longer be considered first-line treatment, with the following 2 options proposed to take its place: quadruple therapy with bismuth (proton pump inhibitor, bismuth subcitrate, tetracycline, and metronidazole) and quadruple therapy without bismuth (proton pump inhibitor, amoxicillin, clarithromycin, and metronidazole). The need for antimicrobial sensitivity testing when 2 eradication treatments have failed was also established. Finally, the promotion of educational campaigns on the diagnosis and treatment of H. pylori for both primary care physicians and the general population were proposed.

Milk is a liquid food that possesses an important quantity of highly bioavailable macronutrients. In addition, it is readily accessible, as well as relatively inexpensive. Given that the knowledge of physicians about nutrition and food composition is deficient, in general, many of the dietary interventions recommended in diverse clinical settings lack a scientific basis. The aim of the present review was to produce a technical opinion that serves as a frame of reference to best sustain recommendations for consuming milk and dairy products as daily nutrition in the adult and older adult. The effects of milk and dairy products during the pediatric stage are not addressed in the present work. The Asociación Mexicana de Gastroenterología and the Asociación Mexicana de Gerontología y Geriatría jointly discussed and analyzed topics dealing with the legal designation of milk, the classification and nutritional profile of cow's milk, its nutritional characteristics, its consumption in the adult, intolerance to cow's milk, and associations of milk consumption with digestive tract alterations and other conditions. Finally, certain aspects of milk consumption in the older adult and its relation to overall health are briefly discussed. Resumen: La leche es un alimento que tiene una importante cantidad de macronutrimentos de gran biodisponibilidad, accesible y de relativo bajo costo. El conocimiento de los médicos en general sobre nutrición y composición de los alimentos es deficiente por lo que muchas de las intervenciones dietéticas que tradicionalmente recomendamos en diversos escenarios clínicos carecen de sustento científico. El objetivo de esta revisión fue generar una opinión técnica que sirva como marco de referencia para sustentar de mejor forma la recomendación sobre el consumo de leche y productos lácteos en la nutrición diaria de adultos y adultos mayores. Los efectos de la leche y productos lácteos durante la etapa pediátrica salen del contexto del presente trabajo. La Asociación Mexicana de Gastroenterología y la Asociación Mexicana de Gerontología y Geriatría comentaron y analizaron de forma conjunta temas acerca de la denominación legal de la leche, clasificación y perfil nutrimental de la leche de vaca, sus características nutrimentales, su consumo en el adulto, intolerancia a la leche de vaca, asociaciones entre el consumo de leche y alteraciones del aparato digestivo y otras condiciones; finalmente, se mencionan de forma breve algunos aspectos sobre el consumo de leche en el adulto mayor y su relación con la salud. Keywords: Dairy products, Cow's milk, Diet, Adult, Older adult, Palabras clave: Lácteos, Leche de vaca, Alimentación, Adulto, Adulto mayor

Background: Acute pancreatitis (AP), a disease that commonly requires in-hospital treatment, has been associated with a high incidence of abnormal cardiovascular findings (ACFs). We conducted a prospective study to explore the association of these findings with severity of the disease. Methods: Adult patients with AP diagnosis were prospectively enrolled in an observational study during an 8-month period in a tertiary care center. AP and its severity were defined according to the Revised Atlanta Classification of AP. Subjects were submitted to electrocardiographic, echocardiographic, and serologic testing during the acute period and a 3-month follow-up. The incidence of ACF was compared between two groups: (1) Mild and (2) moderate/severe cases. Results: Twenty-seven patients (mean age 48 ± 17 years) with AP were enrolled; 15 (55%) had mild and 12 (45%) had moderate/severe AP. During the acute episode, 67% had increased pro-brain natriuretic peptide levels; 52% had abnormal electrocardiographic findings; 48% had abnormal echocardiographic findings; and 18% had increased troponin I levels. There was no significant difference in the incidence of ACF between mild and moderate/severe groups. Nineteen patients (70%) had repeated follow-up testing, and most of the initial ACF did not persist. Conclusion: ACFs occur in an important proportion of patients during AP episodes. Future research should continue to focus in the association of ACFs and the severity of the disease.

Objective: In this study we evaluate the association between obesity and complication development in patients with a first-attack acute pancreatitis (AP), and investigate the influence of comorbid factors on this association. Methods: Medical records of 150 patients with AP were reviewed. General data, AP etiology, admission AP prognostic criteria, and occurrence of complications were recorded. Patients were classified according to body mass index (BMI) as obese (BMI > 25 kg/m2) and nonobese (BMI ≤ 25 kg/m2). Results: Prevalence of obesity was 57%. Thirty-eight percent of the obese patients developed complications as compared with 21% of the nonobese (RR = 1.74; 95% CI, 1–2.9). The risk for severe AP increased according to the degree of obesity. Pancreatic and peripancreatic necrosis was more common in obese patients (17.6% vs 6%), as was the incidence of infectious complications. The risk for severe AP was highest in obese patients with either alcoholic (RR = 5.3; 95% CI, 1.2–23) or biliary etiology (RR = 5.2, 95% CI, 1–26). Conclusion: Obesity may predispose to a complicated course of AP, especially if it is secondary to alcohol or gallstones. Further studies are needed to establish the precise prognostic value of obesity in AP, as well as the pathogenic mechanisms involved in the process.