Eosinophilic esophagitis. Report of three cases Eosinophilic esophagitis in adults (EE) is a disease of unknown cause, characterized by symptoms such as reflux and dysphagia that traditionally do not respond to antacid treatment. It affects mostly young men with a strong personal or familial history of atopy, asthma and allergies. We report three male patients aged 10, 14 and 15 years, all with symptoms of dysphagia, two of them with chest pain caused by spasm of the esophagus, with heterogeneous endoscopic findings which included from leucoplakia to stenosis that needed endoscopic dilatation. All of them had abnormal findings in immunity studies (prick test or IgE levels). They received treatment based on diet measures, acid suppression and leukotriene inhibitors, with satisfactory clinical, endoscopic and histological response. EE should be suspected in children and adults with esophageal symptoms and personal or family history of allergy and asthma (Rev Méd Chile 2009; 137: 666-71).

Background: During infancy, preventive, diagnostic and therapeutic efforts for IgG were 81, 97, 89 and 93%, respectively and for IgA, 90, 76, 36 and 96%, respectively (Rev Méd Chile 2007; 135: 182-8).

Introduction:Upper gastrointestinal studies are routine diagnostic and therapeutic procedures. In pediatrics, however, they are limited by the need for sedation and monitoring. Objectives: To evaluate sedation, indication, and parent perception of these exams. Patients and Methods: A prospective study of 190 pediatric upper gastrointestinal endoscopies was undertaken. Demographic data, as well as information regarding the exam was obtained. Results: Patients' average age was 8.5 ± 4.2, mostly referred by pediatricians (60%) Main reason for referral was recurrent abdominal pain (29.8%). Patients were classified according to ASA criteria (93% ASA I and II). Most patients required two or more medications for optimal sedation, with satisfactory procedure in over 90%. Over 75.5% had complete amnesia, 42.7% presented minor discomfort after the procedure. Findings of these procedures included 61% of normal exams, 13.9% esophagitis. More findings were there result of analyses according to children's weight (over or under 14 kg), age, ASA, reason for referral, nurse's evaluation of sedation. Conclusion: Ambulatory endoscopic procedures can be performed safely in children, with moderate sedation. Requirements are adequate monitoring, and deep knowledge of resuscitation techniques.

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