ABSTRACT
Resumen: El brote del virus SARS-CoV-2 que comenzó a fines del año 2019 en China, se ha expandido a Chile y al mundo rápidamente. Hasta la fecha, en Chile, ha afectado a 18.435 personas con una letalidad en adultos de 1,4%. Los pacientes pediátricos con enfermedades hepáticas crónicas son también susceptibles a COVID-19 y podrían tener una peor evolución. El objetivo es entregar recomendaciones sobre el tratamiento médico de pacientes pediátricos con daño hepático crónico (DHC), hepatitis autoinmune (HAI), Enfermedad de hígado graso no alcohólico (EHGNA) y trasplantados hepáticos (TH) en relación a COVID-19. Lo primordial es evitar el contagio y para esto, lo más importante es el lavado de manos, uso de mascarilla en espacios públicos y cerrados, como el distanciamiento social y evitar contacto con personas sintomáticas. Los pacientes con DHC, HAI, EHGNA y TH deben evitar los controles presenciales y favorecer la telemedicina. No existe evidencia que recomiende la modifi cación del tratamiento basal en estos casos. En pacientes COVID-19 (+) se recomienda medidas de aislamiento, preferir uso de paracetamol como antipirético y analgésico y en el manejo de la inmunosupresión, debe considerarse cada caso de forma individual, según gravedad y con evaluación del especialista. Además, se revisan las actuales terapias específicas para COVID-19 y sus precauciones en pacientes con hepatopatías. Las medidas de prevención del contagio, aislamiento social y diagnóstico precoz son fundamentales en pacientes con enfermedad hepática y el riesgo de infección por SARS- CoV-2.
Abstract: The SARS-CoV-2 virus outbreak, which began in late 2019 in China, has spread very quickly to Chile and worldwide. In Chile, we currently have around 18,435 people infected with 1.4% of adult mor tality. Pediatric patients with chronic liver diseases (CLD) are susceptible as well to COVID-19 and could have a worse prognosis. The objective is to give recommendations about medical treatment to pediatric patients with chronic liver disease (CLD), autoimmune hepatitis (AIH), Non- Alcoholic fatty liver disease (NAFLD), and liver transplant in the context of COVID-19. The most important issue in the management of these patients is to avoid exposure to the virus, hand washing, the use of face masks in public and closed places, as well as social distancing, and avoiding contact with positive COVID-19 patients. In Children with CLD, AIH, NAFLD, and liver transplant, outpatient follow-up should be avoided when possible and replaced with videoconference consultation. No evidence re commends modifications to their baseline treatment. Positive COVID-19 patients should be isolated, the use of paracetamol as an antipyretic and analgesic and modifications to immunosuppressant drugs should be seen by the specialist in a case to case basis according to its severity. In addition, we reviewed current specific therapies for COVID-19 and their precautions in patients with liver disease. Protective measures, social distancing, and early diagnosis are very important in patients with liver disease to decrease the risk of SARS-CoV-2 infection.
ABSTRACT
BACKGROUND: The prevalence of food allergy increased worldwide in the last century. In Chile we became aware of this increase 10-15 years ago, after an epidemiological transition on health. AIM: To assess the most frequent clinical presentations of food allergy, results of circulating immunologlobulins (total IgE, specific IgE and IgG4 against cow's milk) and usefulness of a standardized challenge test. PATIENTS AND METHODS: Cross sectional assessment of 49 patients with cow's milk allergy (9 months-8 years of age), diagnosed at INTA, University of Chile between 1991-2001. RESULTS: All patients had cow's milk allergy and 37% of them were additionally intolerant to other allergens. Seventy eight percent had digestive symptoms and 84% had non digestive symptoms. The cause of consultation was a non-digestive manifestation in 16% of cases. At least one of the immunoglobulins (total IgE total, specific IgE or IgG4) was over the cut off point in 92% of patients. Between 1990-1995 six patients were diagnosed with cow's milk allergy and malabsorption syndrome. Suppression of the specific allergen resulted in disappearance of symptoms in 78% of patients; when a second dietary modification was necessary 87% of cases showed a good response. Thirty five of 56 challenge tests performed were done at home, by relatives, in a non-controlled fashion. All of them were aimed to determine the desensitization of the child. CONCLUSIONS: Digestive and non-digestive manifestations were observed in these patients with food allergy. Although not designed to assess laboratory tests, results show that serum immunoglobulin determinations were helpful in guiding diagnosis. Mothers and relatives should be educated to accept diagnostic challenges and avoid carrying out non-controlled challenges.
