Natural history of immunoglobulin E-mediated cow's milk allergy in a population of Argentine children.

Abstract:

INTRODUCTION:Cow's milk protein allergy is the most common allergy in pediatrics. Immunoglobulin E (IgE)-mediated cow's milk allergy poses a higher risk for life and a worse prognosis. OBJETIVES:To describe the course of IgE-mediated cow's milk protein allergy and risk factors associated with disease persistence. PATIENTS AND METHODS:This was a descriptive, retrospective study conducted in patients seen at the Division of Pediatric Allergy of Hospital Italiano between June 2006 and June 2012 who had been diagnosed with IgE-mediated cow's milk allergy. RESULTS:Out of the 72 patients with IgE-mediated cow's milk allergy, 39 (54%) were boys. Patients' average age at the time of diagnosis was 5.19 ± 3.7months old; the most common symptoms were urticaria and vomiting. Rhinitis and asthma were the most commonly observed concomitant atopic diseases. In the study period, 54.5% of patients developed tolerance at an average age of 32 months old. An 8-mm papule in the skin prick test and casein sensitization were associated with disease persistence. CONCLUSION:Overall, 54.5% of patients developed tolerance at 32 months old. A significant association was observed between papule size at the time of diagnosis and casein sensitization and disease persistence. INTRODUCCIÓN:La alergia a la proteína de la leche de vaca es la alergia alimentaria más frecuente en pediatría. El subtipo de las mediadas por inmunoglobulina E (IgE) presenta mayor riesgo de vida y peor pronóstico. OBJETIVOS:Describir la evolución de la alergia a la proteína de la leche de vaca mediada por IgE y los factores de riesgo asociados a la persistencia de la enfermedad. PACIENTES Y MÉTODO:Estudio descriptivo, retrospectivo en pacientes que consultaron a la sección de Alergia Pediátrica del Hospital Italiano entre junio de 2006 y junio de 2012 con diagnóstico de alergia a la leche de vaca mediada por IgE. RESULTADOS:Se hallaron 72 pacientes con alergia a la leche de vaca mediada por IgE, 39 (54%) de sexo masculino. La edad promedio al momento del diagnóstico fue de 5,19 ± 3,7 meses; los síntomas de presentación más frecuentes fueron urticaria y vómitos. La rinitis y el asma fueron las enfermedades atópicas concomitantes más frecuentemente observadas. En el período de estudio, el 54,5% adquirieron tolerancia a la edad promedio de 32 meses. La presencia de pápulas mayores de 8mm en el prick test y de sensibilización a la caseína se asoció con la persistencia de la enfermedad. CONCLUSIÓN:El 54,5% de los pacientes desarrolló tolerancia a los 32 meses de vida. Se encontró una asociación significativa entre el tamaño de la pápula al momento del diagnóstico y la sensibilización a la caseína con la persistencia de la enfermedad.

journal_name

Arch Argent Pediatr

authors

Petriz NA,Parisi CA,Busaniche JN,Evangelista P,Mehaudy R,Orsi M

doi

10.5546/aap.2017.eng.331

subject

Has Abstract

pub_date

2017-08-01 00:00:00

pages

331-335

issue

4

eissn

0325-0075

issn

1668-3501

journal_volume

115

pub_type

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