Characteristics and outcomes of the Spanish registry for pediatric patients with bicuspid aortic valve (REVAB).

INTRODUCTION AND OBJECTIVES: Bicuspid aortic valve (BAV) disorder is the most common congenital heart disease. The aim of this study was to describe the characteristics of 0- to 18-year olds with BAV in a population-based registry. METHODS: Data from all pediatric patients were obtained from the Spanish registry for pediatric patients with bicuspid aortic valve (REVAB) (< 18 years). For data analysis, patients with BAV were divided into 2 groups by their features: isolated BAV and BAV with associated congenital heart disease. RESULTS: We included 1681 patients from 33 hospitals. Males accounted for 69.6% (n = 1158). Valve morphology was horizontal in 63.4% (n = 1012) and pure (Sievers type 0) in 28.4% (n=469). Isolated BAV was present in 63.7% (n=1060), and concomitant left-sided obstructive lesions in 23.4% (n=390). Interventions were required in 8.6% (n=145). CONCLUSION: These data represent the first large, population-based description of the clinical presentations and outcomes of patients enrolled in the Spanish registry for pediatric patients with bicuspid aortic valve.

Dermatomiositis juvenil: a propósito de un caso / Juvenile dermatomyositis: a case report

La dermatomiositis juvenil es el subtipo más frecuente del grupo de las miopatías idiopáticas inflamatorias en la edad pediátrica. Clínicamente se caracteriza por la presencia de debilidad muscular proximal y simétrica con afectación cutánea característica. El diagnóstico clásicamente se ha basado en los criterios de Bohan y Peter (1975). Sin embargo, en 2017, el International Myositis Assessment and Clinical Studies Group (IMACS) ha publicado unos criterios de clasificación de las miopatías idiopáticas inflamatorias donde es posible clasificar a un paciente sin necesidad de biopsia. La patogenia de la enfermedad es compleja y no del todo conocida. Están involucrados el sistema inmune innato y adaptativo, donde juega un papel muy importante el interferón, y donde existen agentes externos como infecciones o factores medioambientales que actuarían como desencadenantes en sujetos genéticamente predispuestos. El tratamiento ha de ser intensivo desde el inicio, con el objetivo de controlar la enfermedad cutánea y muscular de forma precoz, minimizar complicaciones como la calcinosis, más frecuente en niños que en adultos, y mejorar el pronóstico a largo plazo. Presentamos el caso de una niña prepúber en cuyo debut de la enfermedad solo presentaba dolor e impotencia funcional en pierna izquierda, con antecedente de traumatismo de baja energía, sin elevación de enzimas musculares, lesiones cutáneas ni una biopsia muscular típica (AU)

uvenile dermatomyositis is the most common idiopathic inflammatory myopathy subtype in the paediatric age group. Clinically, it is characterized by proximal and symmetrical muscle weakness with characteristic skin lesions. Traditionally, the diagnosis has been based on the Bohan and Peter criteria (1975). However, the International Myositis Assessment and Clinical Studies Group (IMACS) published new classification criteria in 2017 that allow classification of the disease without a biopsy. The pathogenesis of the disease is complex and has not been fully elucidated. It involves innate and adaptive immunity, with interferon playing a key role, and external agents like infections or environmental factors acting as triggers of the disease in genetically predisposed people.Treatment must be intensive from the beginning to achieve early control of cutaneous and muscular disease, reduce complications such as calcinosis, which is more frequent in children than in adults, and improve long-term outcomes.We present the case of a prepubertal girl who had onset with pain and left leg dysfunction and reported a history of low-energy trauma, without muscle enzyme elevation, skin lesions or a typical muscle biopsy. (AU)

Infarto esplénico debido a una infección común / Splenic infarction due a common infection

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Infección cutánea por Mycobacterium marinum / Skin infection due to Mycobacterium marinum

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