[Pediatric ANCA-associated vasculitis, a case series].

Introduction: ANCA-associated vasculitis (AAV) is an infrequent disease in childhood. International literature about pediatric vasculitis is scarce, and it mainly refers to other systemic vasculitides with a higher incidence in childhood, such as IgA vasculitis and Kawasaki disease.

Objective: To describe the clini cal and laboratory characteristics of a series of pediatric cases with AAV.

Changes in Treatments and Outcomes After Implementation of a National Universal Access Program for Juvenile Idiopathic Arthritis.

Objective: To evaluate the clinical and demographic characteristics of patients with juvenile idiopathic arthritis (JIA) in Chile and compare treatments and outcomes before and after the introduction in 2010 of the Explicit Health Guarantees (GES) for JIA, a national universal access program for diagnosis and treatment of this condition.

Methods: The clinical records of 280 patients with JIA followed at a private tertiary academic health network between 2007 and 2018 were reviewed.

Results: Seventy percent of patients with JIA were female, mean age at diagnosis was 8.

Chronic nonbacterial osteomyelitis in children: a multicenter case series.

Chronic nonbacterial osteomyelitis (CNO) is a primary autoinflammatory bone disease that presents more frequently in children and is characterized by inflammatory bone lesions in the absence of an infectious etiology. There is little information of this disease in Latin America. The objective of the study was to evaluate demographic, clinical, laboratory, imaging, histopathology characteristics, and treatment responses of pediatric CNO patients.

Clinical characterization of Chilean patients with IgE-mediated food allergy.

Background: Food allergy (FA) is an entity of high and growing prevalence, which can be mediated by IgE or cellular immunity. It can have a wide range of symptoms and be triggered by multiple food antigens, which vary in different geographical areas.

Objectives: To describe clinical characteristics of Chilean patients with IgE-mediated FA.

[Geographic distribution of Kawasaki disease throughout Chile].

Background: Incidence of Kawasaki disease (KD) in Chile is rising, however the distribution of cases throughout Chile is unknown.

Objective: To describe the epidemiology of KD in Chile between years 2001 and 2011, and study the geographic distribution of KD cases throughout the country.

Methods: We reviewed national hospital discharge databases for KD cases (ICD10 code M30.